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AH12C B RH Angled Headwall

SSG Compliant
BIM Available
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AH12C B Right Hand Angled precast headwalls are two part precast concrete headwalls that allow water to discharge at a 45 Degree angle. This is the Environment Agency’s preferred method when discharging into a watercourse. The AH12C B Right Hand Angled headwall has a backwall height of 1300mm and is suitable for use with plastic, clay or concrete pipework up to 900mm. We can supply toe extension pieces in 3 depths up to 1000mm.

AH12C angled precast headwall units can be pre-fitted with a range of accessories such as Kee Klamp® handrails, gratings, flap valves, penstocks and other flow control devices. The AH12C B Right Hand Angled Headwall weighs 3495kg.

If you require any assistance or more information please contact us by phone on 01603 488700 or by email sales@althon.co.uk

AH12C B RH Angled Headwall line drawing
AH12C B RH Angled Headwall
As standard our headwalls have a natural concrete finish.
We can offer coloured headwalls in 4 colours but the final shade is affected by many influences.
Our Headwall Products are available in a range of colours
Natural
Our Headwall Products are available in a range of colours
Cotswold
Our Headwall Products are available in a range of colours
Agate
Our Headwall Products are available in a range of colours
Raven Grey
Our Headwall Products are available in a range of colours
Everglade
Product Name
Max Pipe Opening PCC
Max Pipe Opening Plastic / C'ware
Backwall Height
Approx Headwall Weight (kg)
AH12C B RH Angled Headwall
900
900
1550
3495

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    AH12C B RH Angled Headwall

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    AH12C B RH Angled Headwall + Close Coupled Grating

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    AH12C B RH Angled Headwall + Cranked Grating

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    AH12C B RH Angled Headwall + Sloped Grating

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    AH12C B RH Angled Headwall + 3 Sided Kee Klamp

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    AH12C B RH Angled Headwall + Close Coupled Grating + 3 Sided Kee Klamp

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    AH12C B RH Angled Headwall + Cranked Grating + 3 Sided Kee Klamp

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    AH12C B RH Angled Headwall + Sloped Grating + 3 Sided Kee Klamp

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    AH12C B RH Angled Headwall + Backwall Kee Klamp

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    AH12C B RH Angled Headwall + Close Coupled Grating + Backwall Kee Klamp

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    AH12C B RH Angled Headwall + Cranked Grating + Backwall Kee Klamp

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    AH12C B RH Angled Headwall + Sloped Grating + Backwall Kee Klamp

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    AH12C B RH Angled Headwall + 100mm Flap Valve

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    AH12C B RH Angled Headwall + 100mm Flap Valve + Cranked Grating

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    AH12C B RH Angled Headwall + 100mm Flap Valve + 3 Sided Kee Klamp

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    AH12C B RH Angled Headwall + 100mm Flap Valve + Cranked Grating + 3 Sided Kee Klamp

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    AH12C B RH Angled Headwall + 100mm Flap Valve + Backwall Kee Klamp

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    AH12C B RH Angled Headwall + 100mm Flap Valve + Cranked Grating + Backwall Kee Klamp

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    AH12C B RH Angled Headwall + 150mm Flap Valve

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    AH12C B RH Angled Headwall + 150mm Flap Valve + Cranked Grating

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    AH12C B RH Angled Headwall + 150mm Flap Valve + 3 Sided Kee Klamp

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    AH12C B RH Angled Headwall + 150mm Flap Valve + Cranked Grating + 3 Sided Kee Klamp

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    AH12C B RH Angled Headwall + 150mm Flap Valve + Backwall Kee Klamp

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    AH12C B RH Angled Headwall + 150mm Flap Valve + Cranked Grating + Backwall Kee Klamp

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    AH12C B RH Angled Headwall + 200mm Flap Valve

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    BIM Objects

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    AH12C B RH Angled Headwall - 750mm ID pipe - 150mm Invert Level

    Example Render

    AH12C B RH Angled Headwall - 750mm ID pipe - 150mm Invert Level render

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    IFC Object

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    COBie Parameters

    Parameter Name Parameter Value
    NamePrecastConcreteHeadwall_AH12CBRH_750mmIDPipe_150mmIL_AlthonLimited
    CreatedBydrawings@althon.co.uk
    CreatedOn2019-05-09T11:30:00
    Categoryn/a
    DescriptionPrecast Concrete Headwall
    AssetTypeFixed
    Manufacturersales@althon.co.uk
    ModelNumberAH12CB RH
    WarrantyGuarantorPartssales@althon.co.uk
    WarrantyDurationPartsn/a
    WarrantyGuarantorLaborn/a
    WarrantyDurationLaborn/a
    WarrantyDurationUnityear
    ReplacementCostn/a
    ExpectedLife>100
    DurationUnityear
    WarrantyDescriptionn/a
    NominalLength2835
    NominalWidth1200
    NominalHeight1550
    ModelReferencePrecast Concrete Headwall
    Shapen/a
    Size2835 x 1200 x 1500
    ColourLight Grey
    FinishSteel mould concrete finish
    Graden/a
    MaterialConcrete
    Constituentsn/a
    FeaturesLifting points cast into headwall
    AccessibilityPerformancen/a
    CodePerformanceBS EN 15258:2008
    SustainabilityPerformancen/a

    Althon_General Parameters

    Parameter Name Parameter Value
    AuthorAlthon Limited
    BIMObjectNameAlthonLimited_PrecastConcreteHeadwall_AH12CBRH_750mmIDPipe_150mmIL
    Version1
    LastUpdated2019-05-09T11:30:00
    ADSKCompatible2X3
    RevitCompatible2018 +
    ManufactureNameAlthon Limited
    ManufacturerURLwww.althon.co.uk
    NBSDescriptionPrecast concrete headwall unit
    NBSNoten/a
    NBSOfficeMasterTagn/a
    NBSReference45-25-40/305
    NBSTypeIDn/a
    DocumentationLiteraturehttps://www.althon.co.uk/products/ah12c-b-rh-angled-headwall/detail/
    DocumentationInstallationGuidehttps://www.althon.co.uk/products/ah12c-b-rh-angled-headwall/detail/
    DocumentationTechnicalhttps://www.althon.co.uk/products/ah12c-b-rh-angled-headwall/detail/
    DocumentationCertificatesOn request
    Uniclass2015codePr_20_93_37_65
    Uniclass2015TitlePrecast concrete headwall units
    Uniclass2015VersionProducts v1.13
    AlthonGeneralNotesWe can cast multiple pipe opening, elliptical, square or rectangular culvert openings into any of our headwalls. We can also cast pipe openings into the wing walls of our headwalls.
    AlthonHeadwallInstallationUnits should be bedded on minimum 200mm thick well compacted Class 6A* selected well graded granular material. *Manual of contract documents for Highway Works: Volume (MCHW1) specification for Highway Works, Series 600 (Nov.09). Sit the headwall level or with a slight fall 1:50 from pipe to spill mouth.
    AlthonHandlingA. Weight of concrete is based on 2.4 tonne/m³+5% is recommended for sizing lifting equipment B. All lifting points shall be used as specified below C. Unit to be lifted as per lifting diagram
    AlthonConcreteA. Mix ref: Self-compacting DC4/DS4 Mix B. Lifting strength bases on 2 cubes = 20N/mm² C. Characteristic 28 day cube strength = 50N/mm² D. Concrete provides Design Chemical Class 4 (DC4) to special Digest1, Table F2
    AlthonReinforcementA. Reinforcement to BS EN 13369 B. Scheduling, dimensioning, bending & cutting to BS8666 C. Cage to be machine tied with steel wire
    AlthonManufactureA. Manufacture to BS EN 15258:2008 precast concrete products - Retaining wall elements, Factory Production Control certificate number: 0086-CPR-650448 & BS EN 13369 B. Tolerances to BS EN 13369 clause 4.3.1.1 C. Finishing Top: Class A Sides: Class A Base: Class A Rear of back wall: Self-Levelled D. Marking: Units shall be indelibly marked to show: mould reference code De-mould date Job reference number and unique product number unit weight (kg)
    AlthonDesignA. Concrete design to EC2 B. Althon have designed the concrete units only, the site conditions should be assessed for suitability by the scheme designer C. Units are designed to withstand a vertical live load surcharge of 10kN/M² D. Weight of soil - 18kN/M² E. Angle of internal friction = 30 Deg. F. Design Life: >100 years Cover Block Size (mm): All Faces 55 Min Cover Size (mm): All Faces 55 Max Cover Size (mm): All Faces 60 Exposure induced by Carbonation: All Faces XC3/4 Corrosion induced by Chloride: XD3 Freeze/thaw attack: XF4 Chemical attack: XA3
    AlthonFabricationA. Manufacture IAW EN 1090-2 EXC CLASS 1 B. Material grade is to be: BS EN 10025 S275 C. Welding carried out IAW EN 1090-2 PARA 7.5.4 - 7.5.18 D. All fillet and butt welds to have a minimum throat thickness of 6mm & joints to be fully welded where possible. E. Ensure vertical flats are fully welded both sides where possible. F. All sharp edges and burrs are to be removed. G. Remove all weld splatter. H. Holes by punching are permitted with reaming. I. Galvanising is carried out after fabrication to BS EN:ISO 1461
    AlthonSpecificationInformationOpening in back wall cast to suit outside diameter of the pipe work. Invert level of pipe can be set to your specification
    AlthonHeadwallMaxPipeSizeMax Pipe Opening PCC = 900mm ID and Max Pipe Opening Pastic/Clayware = 900mm ID
    AlthonToeInformationOur AH12C headwall range is available with toe extensions either 300 or 500mm thick with depths ranging from 400 to 1000mm.

    Built with: Autodesk Inventor Professional 2018

    AH12C B RH Angled Headwall - 750mm ID pipe - 150mm Invert Level + 500 x 500mm Toe

    Example Render

    AH12C B RH Angled Headwall - 750mm ID pipe - 150mm Invert Level + 500 x 500mm Toe render

    RFA Object

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    ADSK Object

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    IFC Object

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    COBie Parameters

    Parameter Name Parameter Value
    NamePrecastConcreteHeadwall_AH12CBRH_750mmIDPipe_150mmIL_500x500mmT_AlthonLimited
    CreatedBydrawings@althon.co.uk
    CreatedOn2019-05-09T11:30:00
    Categoryn/a
    DescriptionPrecast Concrete Headwall
    AssetTypeFixed
    Manufacturersales@althon.co.uk
    ModelNumberAH12CB RH
    WarrantyGuarantorPartssales@althon.co.uk
    WarrantyDurationPartsn/a
    WarrantyGuarantorLaborn/a
    WarrantyDurationLaborn/a
    WarrantyDurationUnityear
    ReplacementCostn/a
    ExpectedLife>100
    DurationUnityear
    WarrantyDescriptionn/a
    NominalLength2835
    NominalWidth1200
    NominalHeight1550
    ModelReferencePrecast Concrete Headwall
    Shapen/a
    Size2835 x 1200 x 1550
    ColourLight Grey
    FinishSteel mould concrete finish
    Graden/a
    MaterialConcrete
    Constituentsn/a
    FeaturesLifting points cast into headwall
    AccessibilityPerformancen/a
    CodePerformanceBS EN 15258:2008
    SustainabilityPerformancen/a

    Althon_General Parameters

    Parameter Name Parameter Value
    AuthorAlthon Limited
    BIMObjectNameAlthonLimited_PrecastConcreteHeadwall_AH12CBRH_750mmIDPipe_150mmIL_500x500mmT
    Version1
    LastUpdated2019-05-09T11:30:00
    ADSKCompatible2X3
    RevitCompatible2018 +
    ManufactureNameAlthon Limited
    ManufacturerURLwww.althon.co.uk
    NBSDescriptionPrecast concrete headwall unit
    NBSNoten/a
    NBSOfficeMasterTagn/a
    NBSReference45-25-40/305
    NBSTypeIDn/a
    DocumentationLiteraturehttps://www.althon.co.uk/products/ah12c-b-rh-angled-headwall/detail/
    DocumentationInstallationGuidehttps://www.althon.co.uk/products/ah12c-b-rh-angled-headwall/detail/
    DocumentationTechnicalhttps://www.althon.co.uk/products/ah12c-b-rh-angled-headwall/detail/
    DocumentationCertificatesOn request
    Uniclass2015codePr_20_93_37_65
    Uniclass2015TitlePrecast concrete headwall units
    Uniclass2015VersionProducts v1.13
    AlthonGeneralNotesWe can cast multiple pipe opening, elliptical, square or rectangular culvert openings into any of our headwalls. We can also cast pipe openings into the wing walls of our headwalls.
    AlthonHeadwallInstallationUnits should be bedded on minimum 200mm thick well compacted Class 6A* selected well graded granular material. *Manual of contract documents for Highway Works: Volume (MCHW1) specification for Highway Works, Series 600 (Nov.09). Sit the headwall level or with a slight fall 1:50 from pipe to spill mouth.
    AlthonHandlingA. Weight of concrete is based on 2.4 tonne/m³+5% is recommended for sizing lifting equipment B. All lifting points shall be used as specified below C. Unit to be lifted as per lifting diagram
    AlthonConcreteA. Mix ref: Self-compacting DC4/DS4 Mix B. Lifting strength bases on 2 cubes = 20N/mm² C. Characteristic 28 day cube strength = 50N/mm² D. Concrete provides Design Chemical Class 4 (DC4) to special Digest1, Table F2
    AlthonReinforcementA. Reinforcement to BS EN 13369 B. Scheduling, dimensioning, bending & cutting to BS8666 C. Cage to be machine tied with steel wire
    AlthonManufactureA. Manufacture to BS EN 15258:2008 precast concrete products - Retaining wall elements, Factory Production Control certificate number: 0086-CPR-650448 & BS EN 13369 B. Tolerances to BS EN 13369 clause 4.3.1.1 C. Finishing Top: Class A Sides: Class A Base: Class A Rear of back wall: Self-Levelled D. Marking: Units shall be indelibly marked to show: mould reference code De-mould date Job reference number and unique product number unit weight (kg)
    AlthonDesignA. Concrete design to EC2 B. Althon have designed the concrete units only, the site conditions should be assessed for suitability by the scheme designer C. Units are designed to withstand a vertical live load surcharge of 10kN/M² D. Weight of soil - 18kN/M² E. Angle of internal friction = 30 Deg. F. Design Life: >100 years Cover Block Size (mm): All Faces 55 Min Cover Size (mm): All Faces 55 Max Cover Size (mm): All Faces 60 Exposure induced by Carbonation: All Faces XC3/4 Corrosion induced by Chloride: XD3 Freeze/thaw attack: XF4 Chemical attack: XA3
    AlthonFabricationA. Manufacture IAW EN 1090-2 EXC CLASS 1 B. Material grade is to be: BS EN 10025 S275 C. Welding carried out IAW EN 1090-2 PARA 7.5.4 - 7.5.18 D. All fillet and butt welds to have a minimum throat thickness of 6mm & joints to be fully welded where possible. E. Ensure vertical flats are fully welded both sides where possible. F. All sharp edges and burrs are to be removed. G. Remove all weld splatter. H. Holes by punching are permitted with reaming. I. Galvanising is carried out after fabrication to BS EN:ISO 1461
    AlthonSpecificationInformationOpening in back wall cast to suit outside diameter of the pipe work. Invert level of pipe can be set to your specification
    AlthonHeadwallMaxPipeSizeMax Pipe Opening PCC = 900mm ID and Max Pipe Opening Pastic/Clayware = 900mm ID
    AlthonToeInformationOur AH12C headwall range is available with toe extensions either 300 or 500mm thick with depths ranging from 400 to 1000mm.

    Built with: Autodesk Inventor Professional 2018

    AH12C B RH Angled Headwall - 750mm ID pipe - 150mm Invert Level + 750 x 500mm Toe

    Example Render

    AH12C B RH Angled Headwall - 750mm ID pipe - 150mm Invert Level + 750 x 500mm Toe render

    ADSK Object

    Version: 1
    Last Updated: May 9, 2019, 11:30 a.m.

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    IFC Object

    Version: 1
    Last Updated: May 9, 2019, 11:30 a.m.

    Download IFC Object

    RFA Object

    Version: 1
    Last Updated: May 9, 2019, 11:30 a.m.

    Download RFA Object

    COBie Parameters

    Parameter Name Parameter Value
    NamePrecastConcreteHeadwall_AH12CBRH_750mmIDPipe_150mmIL_750x500mmT_AlthonLimited
    CreatedBydrawings@althon.co.uk
    CreatedOn2019-05-09T11:30:00
    Categoryn/a
    DescriptionPrecast Concrete Headwall
    AssetTypeFixed
    Manufacturersales@althon.co.uk
    ModelNumberAH12CB RH
    WarrantyGuarantorPartssales@althon.co.uk
    WarrantyDurationPartsn/a
    WarrantyGuarantorLaborn/a
    WarrantyDurationLaborn/a
    WarrantyDurationUnityear
    ReplacementCostn/a
    ExpectedLife>100
    DurationUnityear
    WarrantyDescriptionn/a
    NominalLength2835
    NominalWidth1200
    NominalHeight1550
    ModelReferencePrecast Concrete Headwall
    Shapen/a
    Size2835 x 1200 x 1550
    ColourLight Grey
    FinishSteel mould concrete finish
    Graden/a
    MaterialConcrete
    Constituentsn/a
    FeaturesLifting points cast into headwall
    AccessibilityPerformancen/a
    CodePerformanceBS EN 15258:2008
    SustainabilityPerformancen/a

    Althon_General Parameters

    Parameter Name Parameter Value
    AuthorAlthon Limited
    BIMObjectNameAlthonLimited_PrecastConcreteHeadwall_AH12CBRH_750mmIDPipe_150mmIL_750x500mmT
    Version1
    LastUpdated2019-05-09T11:30:00
    ADSKCompatible2X3
    RevitCompatible2018 +
    ManufactureNameAlthon Limited
    ManufacturerURLwww.althon.co.uk
    NBSDescriptionPrecast concrete headwall unit
    NBSNoten/a
    NBSOfficeMasterTagn/a
    NBSReference45-25-40/305
    NBSTypeIDn/a
    DocumentationLiteraturehttps://www.althon.co.uk/products/ah12c-b-rh-angled-headwall/detail/
    DocumentationInstallationGuidehttps://www.althon.co.uk/products/ah12c-b-rh-angled-headwall/detail/
    DocumentationTechnicalhttps://www.althon.co.uk/products/ah12c-b-rh-angled-headwall/detail/
    DocumentationCertificatesOn request
    Uniclass2015codePr_20_93_37_65
    Uniclass2015TitlePrecast concrete headwall units
    Uniclass2015VersionProducts v1.13
    AlthonGeneralNotesWe can cast multiple pipe opening, elliptical, square or rectangular culvert openings into any of our headwalls. We can also cast pipe openings into the wing walls of our headwalls.
    AlthonHeadwallInstallationUnits should be bedded on minimum 200mm thick well compacted Class 6A* selected well graded granular material. *Manual of contract documents for Highway Works: Volume (MCHW1) specification for Highway Works, Series 600 (Nov.09). Sit the headwall level or with a slight fall 1:50 from pipe to spill mouth.
    AlthonHandlingA. Weight of concrete is based on 2.4 tonne/m³+5% is recommended for sizing lifting equipment B. All lifting points shall be used as specified below C. Unit to be lifted as per lifting diagram
    AlthonConcreteA. Mix ref: Self-compacting DC4/DS4 Mix B. Lifting strength bases on 2 cubes = 20N/mm² C. Characteristic 28 day cube strength = 50N/mm² D. Concrete provides Design Chemical Class 4 (DC4) to special Digest1, Table F2
    AlthonReinforcementA. Reinforcement to BS EN 13369 B. Scheduling, dimensioning, bending & cutting to BS8666 C. Cage to be machine tied with steel wire
    AlthonManufactureA. Manufacture to BS EN 15258:2008 precast concrete products - Retaining wall elements, Factory Production Control certificate number: 0086-CPR-650448 & BS EN 13369 B. Tolerances to BS EN 13369 clause 4.3.1.1 C. Finishing Top: Class A Sides: Class A Base: Class A Rear of back wall: Self-Levelled D. Marking: Units shall be indelibly marked to show: mould reference code De-mould date Job reference number and unique product number unit weight (kg)
    AlthonDesignA. Concrete design to EC2 B. Althon have designed the concrete units only, the site conditions should be assessed for suitability by the scheme designer C. Units are designed to withstand a vertical live load surcharge of 10kN/M² D. Weight of soil - 18kN/M² E. Angle of internal friction = 30 Deg. F. Design Life: >100 years Cover Block Size (mm): All Faces 55 Min Cover Size (mm): All Faces 55 Max Cover Size (mm): All Faces 60 Exposure induced by Carbonation: All Faces XC3/4 Corrosion induced by Chloride: XD3 Freeze/thaw attack: XF4 Chemical attack: XA3
    AlthonFabricationA. Manufacture IAW EN 1090-2 EXC CLASS 1 B. Material grade is to be: BS EN 10025 S275 C. Welding carried out IAW EN 1090-2 PARA 7.5.4 - 7.5.18 D. All fillet and butt welds to have a minimum throat thickness of 6mm & joints to be fully welded where possible. E. Ensure vertical flats are fully welded both sides where possible. F. All sharp edges and burrs are to be removed. G. Remove all weld splatter. H. Holes by punching are permitted with reaming. I. Galvanising is carried out after fabrication to BS EN:ISO 1461
    AlthonSpecificationInformationOpening in back wall cast to suit outside diameter of the pipe work. Invert level of pipe can be set to your specification
    AlthonHeadwallMaxPipeSizeMax Pipe Opening PCC = 900mm ID and Max Pipe Opening Pastic/Clayware = 900mm ID
    AlthonToeInformationOur AH12C headwall range is available with toe extensions either 300 or 500mm thick with depths ranging from 400 to 1000mm.

    Built with: Autodesk Inventor Professional 2018

    AH12C B RH Angled Headwall - 750mm ID pipe - 150mm Invert Level + 1000 x 500mm Toe

    Example Render

    AH12C B RH Angled Headwall - 750mm ID pipe - 150mm Invert Level + 1000 x 500mm Toe render

    RFA Object

    Version: 1
    Last Updated: May 9, 2019, 11:30 a.m.

    Download RFA Object

    ADSK Object

    Version: 1
    Last Updated: May 9, 2019, 11:30 a.m.

    Download ADSK Object

    IFC Object

    Version: 1
    Last Updated: May 9, 2019, 11:30 a.m.

    Download IFC Object

    COBie Parameters

    Parameter Name Parameter Value
    NamePrecastConcreteHeadwall_AH12CBRH_750mmIDPipe_150mmIL_1000x500mmT_AlthonLimited
    CreatedBydrawings@althon.co.uk
    CreatedOn2019-05-09T11:30:00
    Categoryn/a
    DescriptionPrecast Concrete Headwall
    AssetTypeFixed
    Manufacturersales@althon.co.uk
    ModelNumberAH12CB RH
    WarrantyGuarantorPartssales@althon.co.uk
    WarrantyDurationPartsn/a
    WarrantyGuarantorLaborn/a
    WarrantyDurationLaborn/a
    WarrantyDurationUnityear
    ReplacementCostn/a
    ExpectedLife>100
    DurationUnityear
    WarrantyDescriptionn/a
    NominalLength2835
    NominalWidth1200
    NominalHeight1550
    ModelReferencePrecast Concrete Headwall
    Shapen/a
    Size2835 x 1200 x 1550
    ColourLight Grey
    FinishSteel mould concrete finish
    Graden/a
    MaterialConcrete
    Constituentsn/a
    FeaturesLifting points cast into headwall
    AccessibilityPerformancen/a
    CodePerformanceBS EN 15258:2008
    SustainabilityPerformancen/a

    Althon_General Parameters

    Parameter Name Parameter Value
    AuthorAlthon Limited
    BIMObjectNameAlthonLimited_PrecastConcreteHeadwall_AH12CBRH_750mmIDPipe_150mmIL_1000x500mmT
    Version1
    LastUpdated2019-05-09T11:30:00
    ADSKCompatible2X3
    RevitCompatible2018 +
    ManufactureNameAlthon Limited
    ManufacturerURLwww.althon.co.uk
    NBSDescriptionPrecast concrete headwall unit
    NBSNoten/a
    NBSOfficeMasterTagn/a
    NBSReference45-25-40/305
    NBSTypeIDn/a
    DocumentationLiteraturehttps://www.althon.co.uk/products/ah12c-b-rh-angled-headwall/detail/
    DocumentationInstallationGuidehttps://www.althon.co.uk/products/ah12c-b-rh-angled-headwall/detail/
    DocumentationTechnicalhttps://www.althon.co.uk/products/ah12c-b-rh-angled-headwall/detail/
    DocumentationCertificatesOn request
    Uniclass2015codePr_20_93_37_65
    Uniclass2015TitlePrecast concrete headwall units
    Uniclass2015VersionProducts v1.13
    AlthonGeneralNotesWe can cast multiple pipe opening, elliptical, square or rectangular culvert openings into any of our headwalls. We can also cast pipe openings into the wing walls of our headwalls.
    AlthonHeadwallInstallationUnits should be bedded on minimum 200mm thick well compacted Class 6A* selected well graded granular material. *Manual of contract documents for Highway Works: Volume (MCHW1) specification for Highway Works, Series 600 (Nov.09). Sit the headwall level or with a slight fall 1:50 from pipe to spill mouth.
    AlthonHandlingA. Weight of concrete is based on 2.4 tonne/m³+5% is recommended for sizing lifting equipment B. All lifting points shall be used as specified below C. Unit to be lifted as per lifting diagram
    AlthonConcreteA. Mix ref: Self-compacting DC4/DS4 Mix B. Lifting strength bases on 2 cubes = 20N/mm² C. Characteristic 28 day cube strength = 50N/mm² D. Concrete provides Design Chemical Class 4 (DC4) to special Digest1, Table F2
    AlthonReinforcementA. Reinforcement to BS EN 13369 B. Scheduling, dimensioning, bending & cutting to BS8666 C. Cage to be machine tied with steel wire
    AlthonManufactureA. Manufacture to BS EN 15258:2008 precast concrete products - Retaining wall elements, Factory Production Control certificate number: 0086-CPR-650448 & BS EN 13369 B. Tolerances to BS EN 13369 clause 4.3.1.1 C. Finishing Top: Class A Sides: Class A Base: Class A Rear of back wall: Self-Levelled D. Marking: Units shall be indelibly marked to show: mould reference code De-mould date Job reference number and unique product number unit weight (kg)
    AlthonDesignA. Concrete design to EC2 B. Althon have designed the concrete units only, the site conditions should be assessed for suitability by the scheme designer C. Units are designed to withstand a vertical live load surcharge of 10kN/M² D. Weight of soil - 18kN/M² E. Angle of internal friction = 30 Deg. F. Design Life: >100 years Cover Block Size (mm): All Faces 55 Min Cover Size (mm): All Faces 55 Max Cover Size (mm): All Faces 60 Exposure induced by Carbonation: All Faces XC3/4 Corrosion induced by Chloride: XD3 Freeze/thaw attack: XF4 Chemical attack: XA3
    AlthonFabricationA. Manufacture IAW EN 1090-2 EXC CLASS 1 B. Material grade is to be: BS EN 10025 S275 C. Welding carried out IAW EN 1090-2 PARA 7.5.4 - 7.5.18 D. All fillet and butt welds to have a minimum throat thickness of 6mm & joints to be fully welded where possible. E. Ensure vertical flats are fully welded both sides where possible. F. All sharp edges and burrs are to be removed. G. Remove all weld splatter. H. Holes by punching are permitted with reaming. I. Galvanising is carried out after fabrication to BS EN:ISO 1461
    AlthonSpecificationInformationOpening in back wall cast to suit outside diameter of the pipe work. Invert level of pipe can be set to your specification
    AlthonHeadwallMaxPipeSizeMax Pipe Opening PCC = 900mm ID and Max Pipe Opening Pastic/Clayware = 900mm ID
    AlthonToeInformationOur AH12C headwall range is available with toe extensions either 300 or 500mm thick with depths ranging from 400 to 1000mm.

    Built with: Autodesk Inventor Professional 2018

    AH12C B RH Angled Headwall - 825mm ID pipe - 150mm Invert Level

    Example Render

    AH12C B RH Angled Headwall - 825mm ID pipe - 150mm Invert Level render

    IFC Object

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    RFA Object

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    ADSK Object

    Version: 1
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    COBie Parameters

    Parameter Name Parameter Value
    NamePrecastConcreteHeadwall_AH12CBRH_825mmIDPipe_150mmIL_AlthonLimited
    CreatedBydrawings@althon.co.uk
    CreatedOn2019-05-09T11:30:00
    Categoryn/a
    DescriptionPrecast Concrete Headwall
    AssetTypeFixed
    Manufacturersales@althon.co.uk
    ModelNumberAH12CB RH
    WarrantyGuarantorPartssales@althon.co.uk
    WarrantyDurationPartsn/a
    WarrantyGuarantorLaborn/a
    WarrantyDurationLaborn/a
    WarrantyDurationUnityear
    ReplacementCostn/a
    ExpectedLife>100
    DurationUnityear
    WarrantyDescriptionn/a
    NominalLength2835
    NominalWidth1200
    NominalHeight1550
    ModelReferencePrecast Concrete Headwall
    Shapen/a
    Size2835 x 1200 x 1500
    ColourLight Grey
    FinishSteel mould concrete finish
    Graden/a
    MaterialConcrete
    Constituentsn/a
    FeaturesLifting points cast into headwall
    AccessibilityPerformancen/a
    CodePerformanceBS EN 15258:2008
    SustainabilityPerformancen/a

    Althon_General Parameters

    Parameter Name Parameter Value
    AuthorAlthon Limited
    BIMObjectNameAlthonLimited_PrecastConcreteHeadwall_AH12CBRH_825mmIDPipe_150mmIL
    Version1
    LastUpdated2019-05-09T11:30:00
    ADSKCompatible2X3
    RevitCompatible2018 +
    ManufactureNameAlthon Limited
    ManufacturerURLwww.althon.co.uk
    NBSDescriptionPrecast concrete headwall unit
    NBSNoten/a
    NBSOfficeMasterTagn/a
    NBSReference45-25-40/305
    NBSTypeIDn/a
    DocumentationLiteraturehttps://www.althon.co.uk/products/ah12c-b-rh-angled-headwall/detail/
    DocumentationInstallationGuidehttps://www.althon.co.uk/products/ah12c-b-rh-angled-headwall/detail/
    DocumentationTechnicalhttps://www.althon.co.uk/products/ah12c-b-rh-angled-headwall/detail/
    DocumentationCertificatesOn request
    Uniclass2015codePr_20_93_37_65
    Uniclass2015TitlePrecast concrete headwall units
    Uniclass2015VersionProducts v1.13
    AlthonGeneralNotesWe can cast multiple pipe opening, elliptical, square or rectangular culvert openings into any of our headwalls. We can also cast pipe openings into the wing walls of our headwalls.
    AlthonHeadwallInstallationUnits should be bedded on minimum 200mm thick well compacted Class 6A* selected well graded granular material. *Manual of contract documents for Highway Works: Volume (MCHW1) specification for Highway Works, Series 600 (Nov.09). Sit the headwall level or with a slight fall 1:50 from pipe to spill mouth.
    AlthonHandlingA. Weight of concrete is based on 2.4 tonne/m³+5% is recommended for sizing lifting equipment B. All lifting points shall be used as specified below C. Unit to be lifted as per lifting diagram
    AlthonConcreteA. Mix ref: Self-compacting DC4/DS4 Mix B. Lifting strength bases on 2 cubes = 20N/mm² C. Characteristic 28 day cube strength = 50N/mm² D. Concrete provides Design Chemical Class 4 (DC4) to special Digest1, Table F2
    AlthonReinforcementA. Reinforcement to BS EN 13369 B. Scheduling, dimensioning, bending & cutting to BS8666 C. Cage to be machine tied with steel wire
    AlthonManufactureA. Manufacture to BS EN 15258:2008 precast concrete products - Retaining wall elements, Factory Production Control certificate number: 0086-CPR-650448 & BS EN 13369 B. Tolerances to BS EN 13369 clause 4.3.1.1 C. Finishing Top: Class A Sides: Class A Base: Class A Rear of back wall: Self-Levelled D. Marking: Units shall be indelibly marked to show: mould reference code De-mould date Job reference number and unique product number unit weight (kg)
    AlthonDesignA. Concrete design to EC2 B. Althon have designed the concrete units only, the site conditions should be assessed for suitability by the scheme designer C. Units are designed to withstand a vertical live load surcharge of 10kN/M² D. Weight of soil - 18kN/M² E. Angle of internal friction = 30 Deg. F. Design Life: >100 years Cover Block Size (mm): All Faces 55 Min Cover Size (mm): All Faces 55 Max Cover Size (mm): All Faces 60 Exposure induced by Carbonation: All Faces XC3/4 Corrosion induced by Chloride: XD3 Freeze/thaw attack: XF4 Chemical attack: XA3
    AlthonFabricationA. Manufacture IAW EN 1090-2 EXC CLASS 1 B. Material grade is to be: BS EN 10025 S275 C. Welding carried out IAW EN 1090-2 PARA 7.5.4 - 7.5.18 D. All fillet and butt welds to have a minimum throat thickness of 6mm & joints to be fully welded where possible. E. Ensure vertical flats are fully welded both sides where possible. F. All sharp edges and burrs are to be removed. G. Remove all weld splatter. H. Holes by punching are permitted with reaming. I. Galvanising is carried out after fabrication to BS EN:ISO 1461
    AlthonSpecificationInformationOpening in back wall cast to suit outside diameter of the pipe work. Invert level of pipe can be set to your specification
    AlthonHeadwallMaxPipeSizeMax Pipe Opening PCC = 900mm ID and Max Pipe Opening Pastic/Clayware = 900mm ID
    AlthonToeInformationOur AH12C headwall range is available with toe extensions either 300 or 500mm thick with depths ranging from 400 to 1000mm.

    Built with: Autodesk Inventor Professional 2018

    AH12C B RH Angled Headwall - 825mm ID pipe - 150mm Invert Level + 500 x 500mm Toe

    Example Render

    AH12C B RH Angled Headwall - 825mm ID pipe - 150mm Invert Level + 500 x 500mm Toe render

    IFC Object

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    Last Updated: May 9, 2019, 11:30 a.m.

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    RFA Object

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    Last Updated: May 9, 2019, 11:30 a.m.

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    ADSK Object

    Version: 1
    Last Updated: May 9, 2019, 11:30 a.m.

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    COBie Parameters

    Parameter Name Parameter Value
    NamePrecastConcreteHeadwall_AH12CBRH_825mmIDPipe_150mmIL_500x500mmT_AlthonLimited
    CreatedBydrawings@althon.co.uk
    CreatedOn2019-05-09T11:30:00
    Categoryn/a
    DescriptionPrecast Concrete Headwall
    AssetTypeFixed
    Manufacturersales@althon.co.uk
    ModelNumberAH12CB RH
    WarrantyGuarantorPartssales@althon.co.uk
    WarrantyDurationPartsn/a
    WarrantyGuarantorLaborn/a
    WarrantyDurationLaborn/a
    WarrantyDurationUnityear
    ReplacementCostn/a
    ExpectedLife>100
    DurationUnityear
    WarrantyDescriptionn/a
    NominalLength2835
    NominalWidth1200
    NominalHeight1550
    ModelReferencePrecast Concrete Headwall
    Shapen/a
    Size2835 x 1200 x 1550
    ColourLight Grey
    FinishSteel mould concrete finish
    Graden/a
    MaterialConcrete
    Constituentsn/a
    FeaturesLifting points cast into headwall
    AccessibilityPerformancen/a
    CodePerformanceBS EN 15258:2008
    SustainabilityPerformancen/a

    Althon_General Parameters

    Parameter Name Parameter Value
    AuthorAlthon Limited
    BIMObjectNameAlthonLimited_PrecastConcreteHeadwall_AH12CBRH_825mmIDPipe_150mmIL_500x500mmT
    Version1
    LastUpdated2019-05-09T11:30:00
    ADSKCompatible2X3
    RevitCompatible2018 +
    ManufactureNameAlthon Limited
    ManufacturerURLwww.althon.co.uk
    NBSDescriptionPrecast concrete headwall unit
    NBSNoten/a
    NBSOfficeMasterTagn/a
    NBSReference45-25-40/305
    NBSTypeIDn/a
    DocumentationLiteraturehttps://www.althon.co.uk/products/ah12c-b-rh-angled-headwall/detail/
    DocumentationInstallationGuidehttps://www.althon.co.uk/products/ah12c-b-rh-angled-headwall/detail/
    DocumentationTechnicalhttps://www.althon.co.uk/products/ah12c-b-rh-angled-headwall/detail/
    DocumentationCertificatesOn request
    Uniclass2015codePr_20_93_37_65
    Uniclass2015TitlePrecast concrete headwall units
    Uniclass2015VersionProducts v1.13
    AlthonGeneralNotesWe can cast multiple pipe opening, elliptical, square or rectangular culvert openings into any of our headwalls. We can also cast pipe openings into the wing walls of our headwalls.
    AlthonHeadwallInstallationUnits should be bedded on minimum 200mm thick well compacted Class 6A* selected well graded granular material. *Manual of contract documents for Highway Works: Volume (MCHW1) specification for Highway Works, Series 600 (Nov.09). Sit the headwall level or with a slight fall 1:50 from pipe to spill mouth.
    AlthonHandlingA. Weight of concrete is based on 2.4 tonne/m³+5% is recommended for sizing lifting equipment B. All lifting points shall be used as specified below C. Unit to be lifted as per lifting diagram
    AlthonConcreteA. Mix ref: Self-compacting DC4/DS4 Mix B. Lifting strength bases on 2 cubes = 20N/mm² C. Characteristic 28 day cube strength = 50N/mm² D. Concrete provides Design Chemical Class 4 (DC4) to special Digest1, Table F2
    AlthonReinforcementA. Reinforcement to BS EN 13369 B. Scheduling, dimensioning, bending & cutting to BS8666 C. Cage to be machine tied with steel wire
    AlthonManufactureA. Manufacture to BS EN 15258:2008 precast concrete products - Retaining wall elements, Factory Production Control certificate number: 0086-CPR-650448 & BS EN 13369 B. Tolerances to BS EN 13369 clause 4.3.1.1 C. Finishing Top: Class A Sides: Class A Base: Class A Rear of back wall: Self-Levelled D. Marking: Units shall be indelibly marked to show: mould reference code De-mould date Job reference number and unique product number unit weight (kg)
    AlthonDesignA. Concrete design to EC2 B. Althon have designed the concrete units only, the site conditions should be assessed for suitability by the scheme designer C. Units are designed to withstand a vertical live load surcharge of 10kN/M² D. Weight of soil - 18kN/M² E. Angle of internal friction = 30 Deg. F. Design Life: >100 years Cover Block Size (mm): All Faces 55 Min Cover Size (mm): All Faces 55 Max Cover Size (mm): All Faces 60 Exposure induced by Carbonation: All Faces XC3/4 Corrosion induced by Chloride: XD3 Freeze/thaw attack: XF4 Chemical attack: XA3
    AlthonFabricationA. Manufacture IAW EN 1090-2 EXC CLASS 1 B. Material grade is to be: BS EN 10025 S275 C. Welding carried out IAW EN 1090-2 PARA 7.5.4 - 7.5.18 D. All fillet and butt welds to have a minimum throat thickness of 6mm & joints to be fully welded where possible. E. Ensure vertical flats are fully welded both sides where possible. F. All sharp edges and burrs are to be removed. G. Remove all weld splatter. H. Holes by punching are permitted with reaming. I. Galvanising is carried out after fabrication to BS EN:ISO 1461
    AlthonSpecificationInformationOpening in back wall cast to suit outside diameter of the pipe work. Invert level of pipe can be set to your specification
    AlthonHeadwallMaxPipeSizeMax Pipe Opening PCC = 900mm ID and Max Pipe Opening Pastic/Clayware = 900mm ID
    AlthonToeInformationOur AH12C headwall range is available with toe extensions either 300 or 500mm thick with depths ranging from 400 to 1000mm.

    Built with: Autodesk Inventor Professional 2018

    AH12C B RH Angled Headwall - 825mm ID pipe - 150mm Invert Level + 750 x 500mm Toe

    Example Render

    AH12C B RH Angled Headwall - 825mm ID pipe - 150mm Invert Level + 750 x 500mm Toe render

    IFC Object

    Version: 1
    Last Updated: May 9, 2019, 11:30 a.m.

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    RFA Object

    Version: 1
    Last Updated: May 9, 2019, 11:30 a.m.

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    ADSK Object

    Version: 1
    Last Updated: May 9, 2019, 11:30 a.m.

    Download ADSK Object

    COBie Parameters

    Parameter Name Parameter Value
    NamePrecastConcreteHeadwall_AH12CBRH_825mmIDPipe_150mmIL_750x500mmT_AlthonLimited
    CreatedBydrawings@althon.co.uk
    CreatedOn2019-05-09T11:30:00
    Categoryn/a
    DescriptionPrecast Concrete Headwall
    AssetTypeFixed
    Manufacturersales@althon.co.uk
    ModelNumberAH12CB RH
    WarrantyGuarantorPartssales@althon.co.uk
    WarrantyDurationPartsn/a
    WarrantyGuarantorLaborn/a
    WarrantyDurationLaborn/a
    WarrantyDurationUnityear
    ReplacementCostn/a
    ExpectedLife>100
    DurationUnityear
    WarrantyDescriptionn/a
    NominalLength2835
    NominalWidth1200
    NominalHeight1550
    ModelReferencePrecast Concrete Headwall
    Shapen/a
    Size2835 x 1200 x 1550
    ColourLight Grey
    FinishSteel mould concrete finish
    Graden/a
    MaterialConcrete
    Constituentsn/a
    FeaturesLifting points cast into headwall
    AccessibilityPerformancen/a
    CodePerformanceBS EN 15258:2008
    SustainabilityPerformancen/a

    Althon_General Parameters

    Parameter Name Parameter Value
    AuthorAlthon Limited
    BIMObjectNameAlthonLimited_PrecastConcreteHeadwall_AH12CBRH_825mmIDPipe_150mmIL_750x500mmT
    Version1
    LastUpdated2019-05-09T11:30:00
    ADSKCompatible2X3
    RevitCompatible2018 +
    ManufactureNameAlthon Limited
    ManufacturerURLwww.althon.co.uk
    NBSDescriptionPrecast concrete headwall unit
    NBSNoten/a
    NBSOfficeMasterTagn/a
    NBSReference45-25-40/305
    NBSTypeIDn/a
    DocumentationLiteraturehttps://www.althon.co.uk/products/ah12c-b-rh-angled-headwall/detail/
    DocumentationInstallationGuidehttps://www.althon.co.uk/products/ah12c-b-rh-angled-headwall/detail/
    DocumentationTechnicalhttps://www.althon.co.uk/products/ah12c-b-rh-angled-headwall/detail/
    DocumentationCertificatesOn request
    Uniclass2015codePr_20_93_37_65
    Uniclass2015TitlePrecast concrete headwall units
    Uniclass2015VersionProducts v1.13
    AlthonGeneralNotesWe can cast multiple pipe opening, elliptical, square or rectangular culvert openings into any of our headwalls. We can also cast pipe openings into the wing walls of our headwalls.
    AlthonHeadwallInstallationUnits should be bedded on minimum 200mm thick well compacted Class 6A* selected well graded granular material. *Manual of contract documents for Highway Works: Volume (MCHW1) specification for Highway Works, Series 600 (Nov.09). Sit the headwall level or with a slight fall 1:50 from pipe to spill mouth.
    AlthonHandlingA. Weight of concrete is based on 2.4 tonne/m³+5% is recommended for sizing lifting equipment B. All lifting points shall be used as specified below C. Unit to be lifted as per lifting diagram
    AlthonConcreteA. Mix ref: Self-compacting DC4/DS4 Mix B. Lifting strength bases on 2 cubes = 20N/mm² C. Characteristic 28 day cube strength = 50N/mm² D. Concrete provides Design Chemical Class 4 (DC4) to special Digest1, Table F2
    AlthonReinforcementA. Reinforcement to BS EN 13369 B. Scheduling, dimensioning, bending & cutting to BS8666 C. Cage to be machine tied with steel wire
    AlthonManufactureA. Manufacture to BS EN 15258:2008 precast concrete products - Retaining wall elements, Factory Production Control certificate number: 0086-CPR-650448 & BS EN 13369 B. Tolerances to BS EN 13369 clause 4.3.1.1 C. Finishing Top: Class A Sides: Class A Base: Class A Rear of back wall: Self-Levelled D. Marking: Units shall be indelibly marked to show: mould reference code De-mould date Job reference number and unique product number unit weight (kg)
    AlthonDesignA. Concrete design to EC2 B. Althon have designed the concrete units only, the site conditions should be assessed for suitability by the scheme designer C. Units are designed to withstand a vertical live load surcharge of 10kN/M² D. Weight of soil - 18kN/M² E. Angle of internal friction = 30 Deg. F. Design Life: >100 years Cover Block Size (mm): All Faces 55 Min Cover Size (mm): All Faces 55 Max Cover Size (mm): All Faces 60 Exposure induced by Carbonation: All Faces XC3/4 Corrosion induced by Chloride: XD3 Freeze/thaw attack: XF4 Chemical attack: XA3
    AlthonFabricationA. Manufacture IAW EN 1090-2 EXC CLASS 1 B. Material grade is to be: BS EN 10025 S275 C. Welding carried out IAW EN 1090-2 PARA 7.5.4 - 7.5.18 D. All fillet and butt welds to have a minimum throat thickness of 6mm & joints to be fully welded where possible. E. Ensure vertical flats are fully welded both sides where possible. F. All sharp edges and burrs are to be removed. G. Remove all weld splatter. H. Holes by punching are permitted with reaming. I. Galvanising is carried out after fabrication to BS EN:ISO 1461
    AlthonSpecificationInformationOpening in back wall cast to suit outside diameter of the pipe work. Invert level of pipe can be set to your specification
    AlthonHeadwallMaxPipeSizeMax Pipe Opening PCC = 900mm ID and Max Pipe Opening Pastic/Clayware = 900mm ID
    AlthonToeInformationOur AH12C headwall range is available with toe extensions either 300 or 500mm thick with depths ranging from 400 to 1000mm.

    Built with: Autodesk Inventor Professional 2018

    AH12C B RH Angled Headwall - 825mm ID pipe - 150mm Invert Level + 1000 x 500mm Toe

    Example Render

    AH12C B RH Angled Headwall - 825mm ID pipe - 150mm Invert Level + 1000 x 500mm Toe render

    RFA Object

    Version: 1
    Last Updated: May 9, 2019, 11:30 a.m.

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    ADSK Object

    Version: 1
    Last Updated: May 9, 2019, 11:30 a.m.

    Download ADSK Object

    IFC Object

    Version: 1
    Last Updated: May 9, 2019, 11:30 a.m.

    Download IFC Object

    COBie Parameters

    Parameter Name Parameter Value
    NamePrecastConcreteHeadwall_AH12CBRH_825mmIDPipe_150mmIL_1000x500mmT_AlthonLimited
    CreatedBydrawings@althon.co.uk
    CreatedOn2019-05-09T11:30:00
    Categoryn/a
    DescriptionPrecast Concrete Headwall
    AssetTypeFixed
    Manufacturersales@althon.co.uk
    ModelNumberAH12CB RH
    WarrantyGuarantorPartssales@althon.co.uk
    WarrantyDurationPartsn/a
    WarrantyGuarantorLaborn/a
    WarrantyDurationLaborn/a
    WarrantyDurationUnityear
    ReplacementCostn/a
    ExpectedLife>100
    DurationUnityear
    WarrantyDescriptionn/a
    NominalLength2835
    NominalWidth1200
    NominalHeight1550
    ModelReferencePrecast Concrete Headwall
    Shapen/a
    Size2835 x 1200 x 1550
    ColourLight Grey
    FinishSteel mould concrete finish
    Graden/a
    MaterialConcrete
    Constituentsn/a
    FeaturesLifting points cast into headwall
    AccessibilityPerformancen/a
    CodePerformanceBS EN 15258:2008
    SustainabilityPerformancen/a

    Althon_General Parameters

    Parameter Name Parameter Value
    AuthorAlthon Limited
    BIMObjectNameAlthonLimited_PrecastConcreteHeadwall_AH12CBRH_825mmIDPipe_150mmIL_1000x500mmT
    Version1
    LastUpdated2019-05-09T11:30:00
    ADSKCompatible2X3
    RevitCompatible2018 +
    ManufactureNameAlthon Limited
    ManufacturerURLwww.althon.co.uk
    NBSDescriptionPrecast concrete headwall unit
    NBSNoten/a
    NBSOfficeMasterTagn/a
    NBSReference45-25-40/305
    NBSTypeIDn/a
    DocumentationLiteraturehttps://www.althon.co.uk/products/ah12c-b-rh-angled-headwall/detail/
    DocumentationInstallationGuidehttps://www.althon.co.uk/products/ah12c-b-rh-angled-headwall/detail/
    DocumentationTechnicalhttps://www.althon.co.uk/products/ah12c-b-rh-angled-headwall/detail/
    DocumentationCertificatesOn request
    Uniclass2015codePr_20_93_37_65
    Uniclass2015TitlePrecast concrete headwall units
    Uniclass2015VersionProducts v1.13
    AlthonGeneralNotesWe can cast multiple pipe opening, elliptical, square or rectangular culvert openings into any of our headwalls. We can also cast pipe openings into the wing walls of our headwalls.
    AlthonHeadwallInstallationUnits should be bedded on minimum 200mm thick well compacted Class 6A* selected well graded granular material. *Manual of contract documents for Highway Works: Volume (MCHW1) specification for Highway Works, Series 600 (Nov.09). Sit the headwall level or with a slight fall 1:50 from pipe to spill mouth.
    AlthonHandlingA. Weight of concrete is based on 2.4 tonne/m³+5% is recommended for sizing lifting equipment B. All lifting points shall be used as specified below C. Unit to be lifted as per lifting diagram
    AlthonConcreteA. Mix ref: Self-compacting DC4/DS4 Mix B. Lifting strength bases on 2 cubes = 20N/mm² C. Characteristic 28 day cube strength = 50N/mm² D. Concrete provides Design Chemical Class 4 (DC4) to special Digest1, Table F2
    AlthonReinforcementA. Reinforcement to BS EN 13369 B. Scheduling, dimensioning, bending & cutting to BS8666 C. Cage to be machine tied with steel wire
    AlthonManufactureA. Manufacture to BS EN 15258:2008 precast concrete products - Retaining wall elements, Factory Production Control certificate number: 0086-CPR-650448 & BS EN 13369 B. Tolerances to BS EN 13369 clause 4.3.1.1 C. Finishing Top: Class A Sides: Class A Base: Class A Rear of back wall: Self-Levelled D. Marking: Units shall be indelibly marked to show: mould reference code De-mould date Job reference number and unique product number unit weight (kg)
    AlthonDesignA. Concrete design to EC2 B. Althon have designed the concrete units only, the site conditions should be assessed for suitability by the scheme designer C. Units are designed to withstand a vertical live load surcharge of 10kN/M² D. Weight of soil - 18kN/M² E. Angle of internal friction = 30 Deg. F. Design Life: >100 years Cover Block Size (mm): All Faces 55 Min Cover Size (mm): All Faces 55 Max Cover Size (mm): All Faces 60 Exposure induced by Carbonation: All Faces XC3/4 Corrosion induced by Chloride: XD3 Freeze/thaw attack: XF4 Chemical attack: XA3
    AlthonFabricationA. Manufacture IAW EN 1090-2 EXC CLASS 1 B. Material grade is to be: BS EN 10025 S275 C. Welding carried out IAW EN 1090-2 PARA 7.5.4 - 7.5.18 D. All fillet and butt welds to have a minimum throat thickness of 6mm & joints to be fully welded where possible. E. Ensure vertical flats are fully welded both sides where possible. F. All sharp edges and burrs are to be removed. G. Remove all weld splatter. H. Holes by punching are permitted with reaming. I. Galvanising is carried out after fabrication to BS EN:ISO 1461
    AlthonSpecificationInformationOpening in back wall cast to suit outside diameter of the pipe work. Invert level of pipe can be set to your specification
    AlthonHeadwallMaxPipeSizeMax Pipe Opening PCC = 900mm ID and Max Pipe Opening Pastic/Clayware = 900mm ID
    AlthonToeInformationOur AH12C headwall range is available with toe extensions either 300 or 500mm thick with depths ranging from 400 to 1000mm.

    Built with: Autodesk Inventor Professional 2018

    AH12C B RH Angled Headwall - 900mm ID pipe - 150mm Invert Level

    Example Render

    AH12C B RH Angled Headwall - 900mm ID pipe - 150mm Invert Level render

    RFA Object

    Version: 1
    Last Updated: May 9, 2019, 11:30 a.m.

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    ADSK Object

    Version: 1
    Last Updated: May 9, 2019, 11:30 a.m.

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    IFC Object

    Version: 1
    Last Updated: May 9, 2019, 11:30 a.m.

    Download IFC Object

    COBie Parameters

    Parameter Name Parameter Value
    NamePrecastConcreteHeadwall_AH12CBRH_900mmIDPipe_150mmIL_AlthonLimited
    CreatedBydrawings@althon.co.uk
    CreatedOn2019-05-09T11:30:00
    Categoryn/a
    DescriptionPrecast Concrete Headwall
    AssetTypeFixed
    Manufacturersales@althon.co.uk
    ModelNumberAH12CB RH
    WarrantyGuarantorPartssales@althon.co.uk
    WarrantyDurationPartsn/a
    WarrantyGuarantorLaborn/a
    WarrantyDurationLaborn/a
    WarrantyDurationUnityear
    ReplacementCostn/a
    ExpectedLife>100
    DurationUnityear
    WarrantyDescriptionn/a
    NominalLength2835
    NominalWidth1200
    NominalHeight1550
    ModelReferencePrecast Concrete Headwall
    Shapen/a
    Size2835 x 1200 x 1500
    ColourLight Grey
    FinishSteel mould concrete finish
    Graden/a
    MaterialConcrete
    Constituentsn/a
    FeaturesLifting points cast into headwall
    AccessibilityPerformancen/a
    CodePerformanceBS EN 15258:2008
    SustainabilityPerformancen/a

    Althon_General Parameters

    Parameter Name Parameter Value
    AuthorAlthon Limited
    BIMObjectNameAlthonLimited_PrecastConcreteHeadwall_AH12CBRH_900mmIDPipe_150mmIL
    Version1
    LastUpdated2019-05-09T11:30:00
    ADSKCompatible2X3
    RevitCompatible2018 +
    ManufactureNameAlthon Limited
    ManufacturerURLwww.althon.co.uk
    NBSDescriptionPrecast concrete headwall unit
    NBSNoten/a
    NBSOfficeMasterTagn/a
    NBSReference45-25-40/305
    NBSTypeIDn/a
    DocumentationLiteraturehttps://www.althon.co.uk/products/ah12c-b-rh-angled-headwall/detail/
    DocumentationInstallationGuidehttps://www.althon.co.uk/products/ah12c-b-rh-angled-headwall/detail/
    DocumentationTechnicalhttps://www.althon.co.uk/products/ah12c-b-rh-angled-headwall/detail/
    DocumentationCertificatesOn request
    Uniclass2015codePr_20_93_37_65
    Uniclass2015TitlePrecast concrete headwall units
    Uniclass2015VersionProducts v1.13
    AlthonGeneralNotesWe can cast multiple pipe opening, elliptical, square or rectangular culvert openings into any of our headwalls. We can also cast pipe openings into the wing walls of our headwalls.
    AlthonHeadwallInstallationUnits should be bedded on minimum 200mm thick well compacted Class 6A* selected well graded granular material. *Manual of contract documents for Highway Works: Volume (MCHW1) specification for Highway Works, Series 600 (Nov.09). Sit the headwall level or with a slight fall 1:50 from pipe to spill mouth.
    AlthonHandlingA. Weight of concrete is based on 2.4 tonne/m³+5% is recommended for sizing lifting equipment B. All lifting points shall be used as specified below C. Unit to be lifted as per lifting diagram
    AlthonConcreteA. Mix ref: Self-compacting DC4/DS4 Mix B. Lifting strength bases on 2 cubes = 20N/mm² C. Characteristic 28 day cube strength = 50N/mm² D. Concrete provides Design Chemical Class 4 (DC4) to special Digest1, Table F2
    AlthonReinforcementA. Reinforcement to BS EN 13369 B. Scheduling, dimensioning, bending & cutting to BS8666 C. Cage to be machine tied with steel wire
    AlthonManufactureA. Manufacture to BS EN 15258:2008 precast concrete products - Retaining wall elements, Factory Production Control certificate number: 0086-CPR-650448 & BS EN 13369 B. Tolerances to BS EN 13369 clause 4.3.1.1 C. Finishing Top: Class A Sides: Class A Base: Class A Rear of back wall: Self-Levelled D. Marking: Units shall be indelibly marked to show: mould reference code De-mould date Job reference number and unique product number unit weight (kg)
    AlthonDesignA. Concrete design to EC2 B. Althon have designed the concrete units only, the site conditions should be assessed for suitability by the scheme designer C. Units are designed to withstand a vertical live load surcharge of 10kN/M² D. Weight of soil - 18kN/M² E. Angle of internal friction = 30 Deg. F. Design Life: >100 years Cover Block Size (mm): All Faces 55 Min Cover Size (mm): All Faces 55 Max Cover Size (mm): All Faces 60 Exposure induced by Carbonation: All Faces XC3/4 Corrosion induced by Chloride: XD3 Freeze/thaw attack: XF4 Chemical attack: XA3
    AlthonFabricationA. Manufacture IAW EN 1090-2 EXC CLASS 1 B. Material grade is to be: BS EN 10025 S275 C. Welding carried out IAW EN 1090-2 PARA 7.5.4 - 7.5.18 D. All fillet and butt welds to have a minimum throat thickness of 6mm & joints to be fully welded where possible. E. Ensure vertical flats are fully welded both sides where possible. F. All sharp edges and burrs are to be removed. G. Remove all weld splatter. H. Holes by punching are permitted with reaming. I. Galvanising is carried out after fabrication to BS EN:ISO 1461
    AlthonSpecificationInformationOpening in back wall cast to suit outside diameter of the pipe work. Invert level of pipe can be set to your specification
    AlthonHeadwallMaxPipeSizeMax Pipe Opening PCC = 900mm ID and Max Pipe Opening Pastic/Clayware = 900mm ID
    AlthonToeInformationOur AH12C headwall range is available with toe extensions either 300 or 500mm thick with depths ranging from 400 to 1000mm.

    Built with: Autodesk Inventor Professional 2018

    AH12C B RH Angled Headwall - 900mm ID pipe - 150mm Invert Level + 500 x 500mm Toe

    Example Render

    AH12C B RH Angled Headwall - 900mm ID pipe - 150mm Invert Level + 500 x 500mm Toe render

    IFC Object

    Version: 1
    Last Updated: May 9, 2019, 11:30 a.m.

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    ADSK Object

    Version: 1
    Last Updated: May 9, 2019, 11:30 a.m.

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    RFA Object

    Version: 1
    Last Updated: May 9, 2019, 11:30 a.m.

    Download RFA Object

    COBie Parameters

    Parameter Name Parameter Value
    NamePrecastConcreteHeadwall_AH12CBRH_900mmIDPipe_150mmIL_500x500mmT_AlthonLimited
    CreatedBydrawings@althon.co.uk
    CreatedOn2019-05-09T11:30:00
    Categoryn/a
    DescriptionPrecast Concrete Headwall
    AssetTypeFixed
    Manufacturersales@althon.co.uk
    ModelNumberAH12CB RH
    WarrantyGuarantorPartssales@althon.co.uk
    WarrantyDurationPartsn/a
    WarrantyGuarantorLaborn/a
    WarrantyDurationLaborn/a
    WarrantyDurationUnityear
    ReplacementCostn/a
    ExpectedLife>100
    DurationUnityear
    WarrantyDescriptionn/a
    NominalLength2835
    NominalWidth1200
    NominalHeight1550
    ModelReferencePrecast Concrete Headwall
    Shapen/a
    Size2835 x 1200 x 1550
    ColourLight Grey
    FinishSteel mould concrete finish
    Graden/a
    MaterialConcrete
    Constituentsn/a
    FeaturesLifting points cast into headwall
    AccessibilityPerformancen/a
    CodePerformanceBS EN 15258:2008
    SustainabilityPerformancen/a

    Althon_General Parameters

    Parameter Name Parameter Value
    AuthorAlthon Limited
    BIMObjectNameAlthonLimited_PrecastConcreteHeadwall_AH12CBRH_900mmIDPipe_150mmIL_500x500mmT
    Version1
    LastUpdated2019-05-09T11:30:00
    ADSKCompatible2X3
    RevitCompatible2018 +
    ManufactureNameAlthon Limited
    ManufacturerURLwww.althon.co.uk
    NBSDescriptionPrecast concrete headwall unit
    NBSNoten/a
    NBSOfficeMasterTagn/a
    NBSReference45-25-40/305
    NBSTypeIDn/a
    DocumentationLiteraturehttps://www.althon.co.uk/products/ah12c-b-rh-angled-headwall/detail/
    DocumentationInstallationGuidehttps://www.althon.co.uk/products/ah12c-b-rh-angled-headwall/detail/
    DocumentationTechnicalhttps://www.althon.co.uk/products/ah12c-b-rh-angled-headwall/detail/
    DocumentationCertificatesOn request
    Uniclass2015codePr_20_93_37_65
    Uniclass2015TitlePrecast concrete headwall units
    Uniclass2015VersionProducts v1.13
    AlthonGeneralNotesWe can cast multiple pipe opening, elliptical, square or rectangular culvert openings into any of our headwalls. We can also cast pipe openings into the wing walls of our headwalls.
    AlthonHeadwallInstallationUnits should be bedded on minimum 200mm thick well compacted Class 6A* selected well graded granular material. *Manual of contract documents for Highway Works: Volume (MCHW1) specification for Highway Works, Series 600 (Nov.09). Sit the headwall level or with a slight fall 1:50 from pipe to spill mouth.
    AlthonHandlingA. Weight of concrete is based on 2.4 tonne/m³+5% is recommended for sizing lifting equipment B. All lifting points shall be used as specified below C. Unit to be lifted as per lifting diagram
    AlthonConcreteA. Mix ref: Self-compacting DC4/DS4 Mix B. Lifting strength bases on 2 cubes = 20N/mm² C. Characteristic 28 day cube strength = 50N/mm² D. Concrete provides Design Chemical Class 4 (DC4) to special Digest1, Table F2
    AlthonReinforcementA. Reinforcement to BS EN 13369 B. Scheduling, dimensioning, bending & cutting to BS8666 C. Cage to be machine tied with steel wire
    AlthonManufactureA. Manufacture to BS EN 15258:2008 precast concrete products - Retaining wall elements, Factory Production Control certificate number: 0086-CPR-650448 & BS EN 13369 B. Tolerances to BS EN 13369 clause 4.3.1.1 C. Finishing Top: Class A Sides: Class A Base: Class A Rear of back wall: Self-Levelled D. Marking: Units shall be indelibly marked to show: mould reference code De-mould date Job reference number and unique product number unit weight (kg)
    AlthonDesignA. Concrete design to EC2 B. Althon have designed the concrete units only, the site conditions should be assessed for suitability by the scheme designer C. Units are designed to withstand a vertical live load surcharge of 10kN/M² D. Weight of soil - 18kN/M² E. Angle of internal friction = 30 Deg. F. Design Life: >100 years Cover Block Size (mm): All Faces 55 Min Cover Size (mm): All Faces 55 Max Cover Size (mm): All Faces 60 Exposure induced by Carbonation: All Faces XC3/4 Corrosion induced by Chloride: XD3 Freeze/thaw attack: XF4 Chemical attack: XA3
    AlthonFabricationA. Manufacture IAW EN 1090-2 EXC CLASS 1 B. Material grade is to be: BS EN 10025 S275 C. Welding carried out IAW EN 1090-2 PARA 7.5.4 - 7.5.18 D. All fillet and butt welds to have a minimum throat thickness of 6mm & joints to be fully welded where possible. E. Ensure vertical flats are fully welded both sides where possible. F. All sharp edges and burrs are to be removed. G. Remove all weld splatter. H. Holes by punching are permitted with reaming. I. Galvanising is carried out after fabrication to BS EN:ISO 1461
    AlthonSpecificationInformationOpening in back wall cast to suit outside diameter of the pipe work. Invert level of pipe can be set to your specification
    AlthonHeadwallMaxPipeSizeMax Pipe Opening PCC = 900mm ID and Max Pipe Opening Pastic/Clayware = 900mm ID
    AlthonToeInformationOur AH12C headwall range is available with toe extensions either 300 or 500mm thick with depths ranging from 400 to 1000mm.

    Built with: Autodesk Inventor Professional 2018

    AH12C B RH Angled Headwall - 900mm ID pipe - 150mm Invert Level + 750 x 500mm Toe

    Example Render

    AH12C B RH Angled Headwall - 900mm ID pipe - 150mm Invert Level + 750 x 500mm Toe render

    RFA Object

    Version: 1
    Last Updated: May 9, 2019, 11:30 a.m.

    Download RFA Object

    ADSK Object

    Version: 1
    Last Updated: May 9, 2019, 11:30 a.m.

    Download ADSK Object

    IFC Object

    Version: 1
    Last Updated: May 9, 2019, 11:30 a.m.

    Download IFC Object

    COBie Parameters

    Parameter Name Parameter Value
    NamePrecastConcreteHeadwall_AH12CBRH_900mmIDPipe_150mmIL_750x500mmT_AlthonLimited
    CreatedBydrawings@althon.co.uk
    CreatedOn2019-05-09T11:30:00
    Categoryn/a
    DescriptionPrecast Concrete Headwall
    AssetTypeFixed
    Manufacturersales@althon.co.uk
    ModelNumberAH12CB RH
    WarrantyGuarantorPartssales@althon.co.uk
    WarrantyDurationPartsn/a
    WarrantyGuarantorLaborn/a
    WarrantyDurationLaborn/a
    WarrantyDurationUnityear
    ReplacementCostn/a
    ExpectedLife>100
    DurationUnityear
    WarrantyDescriptionn/a
    NominalLength2835
    NominalWidth1200
    NominalHeight1550
    ModelReferencePrecast Concrete Headwall
    Shapen/a
    Size2835 x 1200 x 1550
    ColourLight Grey
    FinishSteel mould concrete finish
    Graden/a
    MaterialConcrete
    Constituentsn/a
    FeaturesLifting points cast into headwall
    AccessibilityPerformancen/a
    CodePerformanceBS EN 15258:2008
    SustainabilityPerformancen/a

    Althon_General Parameters

    Parameter Name Parameter Value
    AuthorAlthon Limited
    BIMObjectNameAlthonLimited_PrecastConcreteHeadwall_AH12CBRH_900mmIDPipe_150mmIL_750x500mmT
    Version1
    LastUpdated2019-05-09T11:30:00
    ADSKCompatible2X3
    RevitCompatible2018 +
    ManufactureNameAlthon Limited
    ManufacturerURLwww.althon.co.uk
    NBSDescriptionPrecast concrete headwall unit
    NBSNoten/a
    NBSOfficeMasterTagn/a
    NBSReference45-25-40/305
    NBSTypeIDn/a
    DocumentationLiteraturehttps://www.althon.co.uk/products/ah12c-b-rh-angled-headwall/detail/
    DocumentationInstallationGuidehttps://www.althon.co.uk/products/ah12c-b-rh-angled-headwall/detail/
    DocumentationTechnicalhttps://www.althon.co.uk/products/ah12c-b-rh-angled-headwall/detail/
    DocumentationCertificatesOn request
    Uniclass2015codePr_20_93_37_65
    Uniclass2015TitlePrecast concrete headwall units
    Uniclass2015VersionProducts v1.13
    AlthonGeneralNotesWe can cast multiple pipe opening, elliptical, square or rectangular culvert openings into any of our headwalls. We can also cast pipe openings into the wing walls of our headwalls.
    AlthonHeadwallInstallationUnits should be bedded on minimum 200mm thick well compacted Class 6A* selected well graded granular material. *Manual of contract documents for Highway Works: Volume (MCHW1) specification for Highway Works, Series 600 (Nov.09). Sit the headwall level or with a slight fall 1:50 from pipe to spill mouth.
    AlthonHandlingA. Weight of concrete is based on 2.4 tonne/m³+5% is recommended for sizing lifting equipment B. All lifting points shall be used as specified below C. Unit to be lifted as per lifting diagram
    AlthonConcreteA. Mix ref: Self-compacting DC4/DS4 Mix B. Lifting strength bases on 2 cubes = 20N/mm² C. Characteristic 28 day cube strength = 50N/mm² D. Concrete provides Design Chemical Class 4 (DC4) to special Digest1, Table F2
    AlthonReinforcementA. Reinforcement to BS EN 13369 B. Scheduling, dimensioning, bending & cutting to BS8666 C. Cage to be machine tied with steel wire
    AlthonManufactureA. Manufacture to BS EN 15258:2008 precast concrete products - Retaining wall elements, Factory Production Control certificate number: 0086-CPR-650448 & BS EN 13369 B. Tolerances to BS EN 13369 clause 4.3.1.1 C. Finishing Top: Class A Sides: Class A Base: Class A Rear of back wall: Self-Levelled D. Marking: Units shall be indelibly marked to show: mould reference code De-mould date Job reference number and unique product number unit weight (kg)
    AlthonDesignA. Concrete design to EC2 B. Althon have designed the concrete units only, the site conditions should be assessed for suitability by the scheme designer C. Units are designed to withstand a vertical live load surcharge of 10kN/M² D. Weight of soil - 18kN/M² E. Angle of internal friction = 30 Deg. F. Design Life: >100 years Cover Block Size (mm): All Faces 55 Min Cover Size (mm): All Faces 55 Max Cover Size (mm): All Faces 60 Exposure induced by Carbonation: All Faces XC3/4 Corrosion induced by Chloride: XD3 Freeze/thaw attack: XF4 Chemical attack: XA3
    AlthonFabricationA. Manufacture IAW EN 1090-2 EXC CLASS 1 B. Material grade is to be: BS EN 10025 S275 C. Welding carried out IAW EN 1090-2 PARA 7.5.4 - 7.5.18 D. All fillet and butt welds to have a minimum throat thickness of 6mm & joints to be fully welded where possible. E. Ensure vertical flats are fully welded both sides where possible. F. All sharp edges and burrs are to be removed. G. Remove all weld splatter. H. Holes by punching are permitted with reaming. I. Galvanising is carried out after fabrication to BS EN:ISO 1461
    AlthonSpecificationInformationOpening in back wall cast to suit outside diameter of the pipe work. Invert level of pipe can be set to your specification
    AlthonHeadwallMaxPipeSizeMax Pipe Opening PCC = 900mm ID and Max Pipe Opening Pastic/Clayware = 900mm ID
    AlthonToeInformationOur AH12C headwall range is available with toe extensions either 300 or 500mm thick with depths ranging from 400 to 1000mm.

    Built with: Autodesk Inventor Professional 2018

    AH12C B RH Angled Headwall - 900mm ID pipe - 150mm Invert Level + 1000 x 500mm Toe

    Example Render

    AH12C B RH Angled Headwall - 900mm ID pipe - 150mm Invert Level + 1000 x 500mm Toe render

    RFA Object

    Version: 1
    Last Updated: May 9, 2019, 11:30 a.m.

    Download RFA Object

    ADSK Object

    Version: 1
    Last Updated: May 9, 2019, 11:30 a.m.

    Download ADSK Object

    IFC Object

    Version: 1
    Last Updated: May 9, 2019, 11:30 a.m.

    Download IFC Object

    COBie Parameters

    Parameter Name Parameter Value
    NamePrecastConcreteHeadwall_AH12CBRH_900mmIDPipe_150mmIL_1000x500mmT_AlthonLimited
    CreatedBydrawings@althon.co.uk
    CreatedOn2019-05-09T11:30:00
    Categoryn/a
    DescriptionPrecast Concrete Headwall
    AssetTypeFixed
    Manufacturersales@althon.co.uk
    ModelNumberAH12CB RH
    WarrantyGuarantorPartssales@althon.co.uk
    WarrantyDurationPartsn/a
    WarrantyGuarantorLaborn/a
    WarrantyDurationLaborn/a
    WarrantyDurationUnityear
    ReplacementCostn/a
    ExpectedLife>100
    DurationUnityear
    WarrantyDescriptionn/a
    NominalLength2835
    NominalWidth1200
    NominalHeight1550
    ModelReferencePrecast Concrete Headwall
    Shapen/a
    Size2835 x 1200 x 1550
    ColourLight Grey
    FinishSteel mould concrete finish
    Graden/a
    MaterialConcrete
    Constituentsn/a
    FeaturesLifting points cast into headwall
    AccessibilityPerformancen/a
    CodePerformanceBS EN 15258:2008
    SustainabilityPerformancen/a

    Althon_General Parameters

    Parameter Name Parameter Value
    AuthorAlthon Limited
    BIMObjectNameAlthonLimited_PrecastConcreteHeadwall_AH12CBRH_900mmIDPipe_150mmIL_1000x500mmT
    Version1
    LastUpdated2019-05-09T11:30:00
    ADSKCompatible2X3
    RevitCompatible2018 +
    ManufactureNameAlthon Limited
    ManufacturerURLwww.althon.co.uk
    NBSDescriptionPrecast concrete headwall unit
    NBSNoten/a
    NBSOfficeMasterTagn/a
    NBSReference45-25-40/305
    NBSTypeIDn/a
    DocumentationLiteraturehttps://www.althon.co.uk/products/ah12c-b-rh-angled-headwall/detail/
    DocumentationInstallationGuidehttps://www.althon.co.uk/products/ah12c-b-rh-angled-headwall/detail/
    DocumentationTechnicalhttps://www.althon.co.uk/products/ah12c-b-rh-angled-headwall/detail/
    DocumentationCertificatesOn request
    Uniclass2015codePr_20_93_37_65
    Uniclass2015TitlePrecast concrete headwall units
    Uniclass2015VersionProducts v1.13
    AlthonGeneralNotesWe can cast multiple pipe opening, elliptical, square or rectangular culvert openings into any of our headwalls. We can also cast pipe openings into the wing walls of our headwalls.
    AlthonHeadwallInstallationUnits should be bedded on minimum 200mm thick well compacted Class 6A* selected well graded granular material. *Manual of contract documents for Highway Works: Volume (MCHW1) specification for Highway Works, Series 600 (Nov.09). Sit the headwall level or with a slight fall 1:50 from pipe to spill mouth.
    AlthonHandlingA. Weight of concrete is based on 2.4 tonne/m³+5% is recommended for sizing lifting equipment B. All lifting points shall be used as specified below C. Unit to be lifted as per lifting diagram
    AlthonConcreteA. Mix ref: Self-compacting DC4/DS4 Mix B. Lifting strength bases on 2 cubes = 20N/mm² C. Characteristic 28 day cube strength = 50N/mm² D. Concrete provides Design Chemical Class 4 (DC4) to special Digest1, Table F2
    AlthonReinforcementA. Reinforcement to BS EN 13369 B. Scheduling, dimensioning, bending & cutting to BS8666 C. Cage to be machine tied with steel wire
    AlthonManufactureA. Manufacture to BS EN 15258:2008 precast concrete products - Retaining wall elements, Factory Production Control certificate number: 0086-CPR-650448 & BS EN 13369 B. Tolerances to BS EN 13369 clause 4.3.1.1 C. Finishing Top: Class A Sides: Class A Base: Class A Rear of back wall: Self-Levelled D. Marking: Units shall be indelibly marked to show: mould reference code De-mould date Job reference number and unique product number unit weight (kg)
    AlthonDesignA. Concrete design to EC2 B. Althon have designed the concrete units only, the site conditions should be assessed for suitability by the scheme designer C. Units are designed to withstand a vertical live load surcharge of 10kN/M² D. Weight of soil - 18kN/M² E. Angle of internal friction = 30 Deg. F. Design Life: >100 years Cover Block Size (mm): All Faces 55 Min Cover Size (mm): All Faces 55 Max Cover Size (mm): All Faces 60 Exposure induced by Carbonation: All Faces XC3/4 Corrosion induced by Chloride: XD3 Freeze/thaw attack: XF4 Chemical attack: XA3
    AlthonFabricationA. Manufacture IAW EN 1090-2 EXC CLASS 1 B. Material grade is to be: BS EN 10025 S275 C. Welding carried out IAW EN 1090-2 PARA 7.5.4 - 7.5.18 D. All fillet and butt welds to have a minimum throat thickness of 6mm & joints to be fully welded where possible. E. Ensure vertical flats are fully welded both sides where possible. F. All sharp edges and burrs are to be removed. G. Remove all weld splatter. H. Holes by punching are permitted with reaming. I. Galvanising is carried out after fabrication to BS EN:ISO 1461
    AlthonSpecificationInformationOpening in back wall cast to suit outside diameter of the pipe work. Invert level of pipe can be set to your specification
    AlthonHeadwallMaxPipeSizeMax Pipe Opening PCC = 900mm ID and Max Pipe Opening Pastic/Clayware = 900mm ID
    AlthonToeInformationOur AH12C headwall range is available with toe extensions either 300 or 500mm thick with depths ranging from 400 to 1000mm.

    Built with: Autodesk Inventor Professional 2018

    Brochures, Datasheets and Installation Instructions for AH12C B RH Angled Headwall

    AH12C Datasheet and Installation Guide

    Download

    Left & Right Hand Angled Range

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    Free headwall design service

    If you cannot find what you are looking for our Free Headwall Design Service can help.

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    Angled Precast Concrete Outfalls allow pipework entering a watercourse at an angle to be accommodated or for an Outfall to be situated on a bend in a river

    As Revit geometry (simple solid) to a Revit Family (.RFA)

    As an Autodesk Exchange File (.ADSK)

    As an Industry Foundation Classes (.IFC) file. Inventor provides IFC2x3 output