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AH4C B LH Angled Headwall

SSG Compliant
BIM Available
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AH4C B Left 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 AH4C B Left Hand Angled headwall has a backwall height of 800mm and is suitable for use with plastic or clay pipework up to 300mm. We can supply toe extension pieces in 3 depths up to 1000mm. AH4C 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 AH4C B Left Hand Angled Headwall weighs 480kg.

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

AH4C B LH Angled Headwall line drawing
AH4C B LH 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 Plastic / C'ware
Backwall Height
Approx Headwall Weight (kg)
AH4C B LH Angled Headwall
300
800
480

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    AH4C B LH Angled Headwall

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    AH4C B LH Angled Headwall + Cranked Grating

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    AH4C B LH Angled Headwall + Backwall Kee Klamp

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    AH4C B LH Angled Headwall + Backwall Kee Klamp + Cranked Grating

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    AH4C B LH Angled Headwall + 100mm Flap Valve

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    AH4C B LH Angled Headwall + 100mm Flap Valve + Cranked Grating

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    AH4C B LH Angled Headwall + 100mm Flap Valve + Backwall Kee Klamp

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    AH4C B LH Angled Headwall + 100mm Flap Valve + Backwall Kee Klamp + Cranked Grating

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    AH4C B LH Angled Headwall + 150mm Flap Valve

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    AH4C B LH Angled Headwall + 150mm Flap Valve + Cranked Grating

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    AH4C B LH Angled Headwall + 150mm Flap Valve + Backwall Kee Klamp

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    AH4C B LH Angled Headwall + 150mm Flap Valve + Backwall Kee Klamp + Cranked Grating

    Download PDF Download CAD

    AH4C B LH Angled Headwall + 250mm Flap Valve

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    AH4C B LH Angled Headwall + 250mm Flap Valve + Cranked Grating

    Download PDF Download CAD

    AH4C B LH Angled Headwall + 250mm Flap Valve + Backwall Kee Klamp

    Download PDF Download CAD

    AH4C B LH Angled Headwall + 250mm Flap Valve + Backwall Kee Klamp + Cranked Grating

    Download PDF Download CAD

    AH4C B LH Angled Headwall + 300mm Flap Valve

    Download PDF Download CAD

    AH4C B LH Angled Headwall + 300mm Flap Valve + Cranked Grating

    Download PDF Download CAD

    AH4C B LH Angled Headwall + 300mm Flap Valve + Backwall Kee Klamp

    Download PDF Download CAD

    AH4C B LH Angled Headwall + 300mm Flap Valve + Backwall Kee Klamp + Cranked Grating

    Download PDF Download CAD

    AH4C B LH Angled Headwall + 450 x 300mm Toe

    Download PDF Download CAD

    AH4C B LH Angled Headwall + 450 x 300mm Toe + Cranked Grating

    Download PDF Download CAD

    AH4C B LH Angled Headwall + 450 x 300mm Toe + Backwall Kee Klamp

    Download PDF Download CAD

    AH4C B LH Angled Headwall + 450 x 300mm Toe + Backwall Kee Klamp + Cranked Grating

    Download PDF Download CAD

    AH4C B LH Angled Headwall + 450 x 300mm Toe + 100mm Flap Valve

    Download PDF Download CAD

     

    BIM Objects

    If you cannot find what you are looking for, please either email us or use our Headwall Design Service

    You can select multiple files below to be added to a single zip file, your selections will be retained across different Headwalls

    AH4C B LH Angled Headwall - 150mm ID pipe - 100mm Invert Level

    Example Render

    AH4C B LH Angled Headwall - 150mm ID pipe - 100mm Invert Level render

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    ADSK Object

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    IFC Object

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    Last Updated: April 29, 2019, 9 a.m.

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    COBie Parameters

    Parameter Name Parameter Value
    NamePrecastConcreteHeadwall_AH4CBLH_150mmIDPipe_100mmIL_AlthonLimited
    CreatedBydrawings@althon.co.uk
    CreatedOn2019-04-29T09:00:00
    Categoryn/a
    DescriptionPrecast Concrete Headwall
    AssetTypeFixed
    Manufacturersales@althon.co.uk
    ModelNumberAH4CBLH
    WarrantyGuarantorPartsn/a
    WarrantyDurationPartsn/a
    WarrantyGuarantorLaborn/a
    WarrantyDurationLaborn/a
    WarrantyDurationUnityear
    ReplacementCostn/a
    ExpectedLife>50
    DurationUnityear
    WarrantyDescriptionn/a
    NominalLength1200
    NominalWidth400
    NominalHeight800
    ModelReferencePrecast Concrete Headwall
    Shapen/a
    Size1200 x 400 x 800
    ColourLight Grey
    FinishSteel mould concrete finish
    Graden/a
    MaterialConcrete
    Constituentsn/a
    FeaturesLifting sockets cast into the headwall
    AccessibilityPerformancen/a
    CodePerformanceBS EN 15258:2008
    SustainabilityPerformancen/a

    Althon_General Parameters

    Parameter Name Parameter Value
    AuthorAlthon Limited
    BIMObjectNameAlthonLimited_PrecastConcreteHeadwall_AH4CBLH_150mmIDPipe_100mmIL
    Version1
    LastUpdated2019-04-29T09:00:00
    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/ah4c-b-lh-angled-headwall/detail/
    DocumentationInstallationGuidehttps://www.althon.co.uk/products/ah4c-b-lh-angled-headwall/detail/
    DocumentationTechnicalhttps://www.althon.co.uk/products/ah4c-b-lh-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 150mm of semi-dry concrete. 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 - Anchor points & loops 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: >50 years Cover Block Size (mm): All Faces 33 Min Cover Size (mm): All Faces 28 Max Cover Size (mm): All Faces 38 Exposure induced by Carbonation: All Faces XC3/4 Corrosion induced by Chloride: XD2 Freeze/thaw attack: XF3 Chemical attack: XA2
    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 = 0mm ID and Max Pipe Opening Pastic/Clayware = 300mm ID
    AlthonToeInformationOur AH4C headwall range is available with toe extensions either 300mm thick with depths ranging from 450, 700 to 1000mm

    Built with: Autodesk Inventor Professional 2018

    AH4C B LH Angled Headwall - 150mm ID pipe - 100mm Invert Level + 450 x 300mm Toe

    Example Render

    AH4C B LH Angled Headwall - 150mm ID pipe - 100mm Invert Level + 450 x 300mm Toe render

    RFA Object

    Version: 1
    Last Updated: April 29, 2019, 9 a.m.

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    ADSK Object

    Version: 1
    Last Updated: April 29, 2019, 9 a.m.

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    IFC Object

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    Last Updated: April 29, 2019, 9 a.m.

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    COBie Parameters

    Parameter Name Parameter Value
    NamePrecastConcreteHeadwall_AH4CBLH_150mmIDPipe_100mmIL_450x300mmT_AlthonLimited
    CreatedBydrawings@althon.co.uk
    CreatedOn2019-04-29T09:00:00
    Categoryn/a
    DescriptionPrecast Concrete Headwall
    AssetTypeFixed
    Manufacturersales@althon.co.uk
    ModelNumberAH4CBLH
    WarrantyGuarantorPartsn/a
    WarrantyDurationPartsn/a
    WarrantyGuarantorLaborn/a
    WarrantyDurationLaborn/a
    WarrantyDurationUnityear
    ReplacementCostn/a
    ExpectedLife>50
    DurationUnityear
    WarrantyDescriptionn/a
    NominalLength1200
    NominalWidth400
    NominalHeight800
    ModelReferencePrecast Concrete Headwall
    Shapen/a
    Size1200 x 400 x 800
    ColourLight Grey
    FinishSteel mould concrete finish
    Graden/a
    MaterialConcrete
    Constituentsn/a
    FeaturesLifting sockets cast into the headwall
    AccessibilityPerformancen/a
    CodePerformanceBS EN 15258:2008
    SustainabilityPerformancen/a

    Althon_General Parameters

    Parameter Name Parameter Value
    AuthorAlthon Limited
    BIMObjectNameAlthonLimited_PrecastConcreteHeadwall_AH4CBLH_150mmIDPipe_100mmIL_450x300mmT
    Version1
    LastUpdated2019-04-29T09:00:00
    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/ah4c-b-lh-angled-headwall/detail/
    DocumentationInstallationGuidehttps://www.althon.co.uk/products/ah4c-b-lh-angled-headwall/detail/
    DocumentationTechnicalhttps://www.althon.co.uk/products/ah4c-b-lh-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 150mm of semi-dry concrete. 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 - Anchor points & loops 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: >50 years Cover Block Size (mm): All Faces 33 Min Cover Size (mm): All Faces 28 Max Cover Size (mm): All Faces 38 Exposure induced by Carbonation: All Faces XC3/4 Corrosion induced by Chloride: XD2 Freeze/thaw attack: XF3 Chemical attack: XA2
    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 = 0mm ID and Max Pipe Opening Pastic/Clayware = 300mm ID
    AlthonToeInformationOur AH4C headwall range is available with toe extensions either 300mm thick with depths ranging from 450, 700 to 1000mm

    Built with: Autodesk Inventor Professional 2018

    AH4C B LH Angled Headwall - 150mm ID pipe - 100mm Invert Level + 700 X 300mm Toe

    Example Render

    AH4C B LH Angled Headwall - 150mm ID pipe - 100mm Invert Level + 700 X 300mm Toe render

    RFA Object

    Version: 1
    Last Updated: April 29, 2019, 9 a.m.

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    ADSK Object

    Version: 1
    Last Updated: April 29, 2019, 9 a.m.

    Download ADSK Object

    IFC Object

    Version: 1
    Last Updated: April 29, 2019, 9 a.m.

    Download IFC Object

    COBie Parameters

    Parameter Name Parameter Value
    NamePrecastConcreteHeadwall_AH4CBLH_150mmIDPipe_100mmIL_700x300mmT_AlthonLimited
    CreatedBydrawings@althon.co.uk
    CreatedOn2019-04-29T09:00:00
    Categoryn/a
    DescriptionPrecast Concrete Headwall
    AssetTypeFixed
    Manufacturersales@althon.co.uk
    ModelNumberAH4CBLH
    WarrantyGuarantorPartsn/a
    WarrantyDurationPartsn/a
    WarrantyGuarantorLaborn/a
    WarrantyDurationLaborn/a
    WarrantyDurationUnityear
    ReplacementCostn/a
    ExpectedLife>50
    DurationUnityear
    WarrantyDescriptionn/a
    NominalLength1200
    NominalWidth400
    NominalHeight800
    ModelReferencePrecast Concrete Headwall
    Shapen/a
    Size1200 x 400 x 800
    ColourLight Grey
    FinishSteel mould concrete finish
    Graden/a
    MaterialConcrete
    Constituentsn/a
    FeaturesLifting sockets cast into the headwall
    AccessibilityPerformancen/a
    CodePerformanceBS EN 15258:2008
    SustainabilityPerformancen/a

    Althon_General Parameters

    Parameter Name Parameter Value
    AuthorAlthon Limited
    BIMObjectNameAlthonLimited_PrecastConcreteHeadwall_AH4CBLH_150mmIDPipe_100mmIL_700x300mmT
    Version1
    LastUpdated2019-04-29T09:00:00
    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/ah4c-b-lh-angled-headwall/detail/
    DocumentationInstallationGuidehttps://www.althon.co.uk/products/ah4c-b-lh-angled-headwall/detail/
    DocumentationTechnicalhttps://www.althon.co.uk/products/ah4c-b-lh-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 150mm of semi-dry concrete. 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 - Anchor points & loops 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: >50 years Cover Block Size (mm): All Faces 33 Min Cover Size (mm): All Faces 28 Max Cover Size (mm): All Faces 38 Exposure induced by Carbonation: All Faces XC3/4 Corrosion induced by Chloride: XD2 Freeze/thaw attack: XF3 Chemical attack: XA2
    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 = 0mm ID and Max Pipe Opening Pastic/Clayware = 300mm ID
    AlthonToeInformationOur AH4C headwall range is available with toe extensions either 300mm thick with depths ranging from 450, 700 to 1000mm

    Built with: Autodesk Inventor Professional 2018

    AH4C B LH Angled Headwall - 150mm ID pipe - 100mm Invert Level + 1000 x 300mm Toe

    Example Render

    AH4C B LH Angled Headwall - 150mm ID pipe - 100mm Invert Level + 1000 x 300mm Toe render

    RFA Object

    Version: 1
    Last Updated: April 29, 2019, 9 a.m.

    Download RFA Object

    ADSK Object

    Version: 1
    Last Updated: April 29, 2019, 9 a.m.

    Download ADSK Object

    IFC Object

    Version: 1
    Last Updated: April 29, 2019, 9 a.m.

    Download IFC Object

    COBie Parameters

    Parameter Name Parameter Value
    NamePrecastConcreteHeadwall_AH4CBLH_150mmIDPipe_100mmIL_1000x300mmT_AlthonLimited
    CreatedBydrawings@althon.co.uk
    CreatedOn2019-04-29T09:00:00
    Categoryn/a
    DescriptionPrecast Concrete Headwall
    AssetTypeFixed
    Manufacturersales@althon.co.uk
    ModelNumberAH4CBLH
    WarrantyGuarantorPartsn/a
    WarrantyDurationPartsn/a
    WarrantyGuarantorLaborn/a
    WarrantyDurationLaborn/a
    WarrantyDurationUnityear
    ReplacementCostn/a
    ExpectedLife>50
    DurationUnityear
    WarrantyDescriptionn/a
    NominalLength1200
    NominalWidth400
    NominalHeight800
    ModelReferencePrecast Concrete Headwall
    Shapen/a
    Size1200 x 400 x 800
    ColourLight Grey
    FinishSteel mould concrete finish
    Graden/a
    MaterialConcrete
    Constituentsn/a
    FeaturesLifting sockets cast into the headwall
    AccessibilityPerformancen/a
    CodePerformanceBS EN 15258:2008
    SustainabilityPerformancen/a

    Althon_General Parameters

    Parameter Name Parameter Value
    AuthorAlthon Limited
    BIMObjectNameAlthonLimited_PrecastConcreteHeadwall_AH4CBLH_150mmIDPipe_100mmIL_1000x300mmT
    Version1
    LastUpdated2019-04-29T09:00:00
    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/ah4c-b-lh-angled-headwall/detail/
    DocumentationInstallationGuidehttps://www.althon.co.uk/products/ah4c-b-lh-angled-headwall/detail/
    DocumentationTechnicalhttps://www.althon.co.uk/products/ah4c-b-lh-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 150mm of semi-dry concrete. 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 - Anchor points & loops 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: >50 years Cover Block Size (mm): All Faces 33 Min Cover Size (mm): All Faces 28 Max Cover Size (mm): All Faces 38 Exposure induced by Carbonation: All Faces XC3/4 Corrosion induced by Chloride: XD2 Freeze/thaw attack: XF3 Chemical attack: XA2
    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 = 0mm ID and Max Pipe Opening Pastic/Clayware = 300mm ID
    AlthonToeInformationOur AH4C headwall range is available with toe extensions either 300mm thick with depths ranging from 450, 700 to 1000mm

    Built with: Autodesk Inventor Professional 2018

    AH4C B LH Angled Headwall - 225mm ID pipe - 100mm Invert Level

    Example Render

    AH4C B LH Angled Headwall - 225mm ID pipe - 100mm Invert Level render

    RFA Object

    Version: 1
    Last Updated: April 29, 2019, 9 a.m.

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    ADSK Object

    Version: 1
    Last Updated: April 29, 2019, 9 a.m.

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    IFC Object

    Version: 1
    Last Updated: April 29, 2019, 9 a.m.

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    COBie Parameters

    Parameter Name Parameter Value
    NamePrecastConcreteHeadwall_AH4CBLH_225mmIDPipe_100mmIL_AlthonLimited
    CreatedBydrawings@althon.co.uk
    CreatedOn2019-04-29T09:00:00
    Categoryn/a
    DescriptionPrecast Concrete Headwall
    AssetTypeFixed
    Manufacturersales@althon.co.uk
    ModelNumberAH4CBLH
    WarrantyGuarantorPartsn/a
    WarrantyDurationPartsn/a
    WarrantyGuarantorLaborn/a
    WarrantyDurationLaborn/a
    WarrantyDurationUnityear
    ReplacementCostn/a
    ExpectedLife>50
    DurationUnityear
    WarrantyDescriptionn/a
    NominalLength1200
    NominalWidth400
    NominalHeight800
    ModelReferencePrecast Concrete Headwall
    Shapen/a
    Size1200 x 400 x 800
    ColourLight Grey
    FinishSteel mould concrete finish
    Graden/a
    MaterialConcrete
    Constituentsn/a
    FeaturesLifting sockets cast into the headwall
    AccessibilityPerformancen/a
    CodePerformanceBS EN 15258:2008
    SustainabilityPerformancen/a

    Althon_General Parameters

    Parameter Name Parameter Value
    AuthorAlthon Limited
    BIMObjectNameAlthonLimited_PrecastConcreteHeadwall_AH4CBLH_225mmIDPipe_100mmIL
    Version1
    LastUpdated2019-04-29T09:00:00
    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/ah4c-b-lh-angled-headwall/detail/
    DocumentationInstallationGuidehttps://www.althon.co.uk/products/ah4c-b-lh-angled-headwall/detail/
    DocumentationTechnicalhttps://www.althon.co.uk/products/ah4c-b-lh-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 150mm of semi-dry concrete. 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 - Anchor points & loops 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: >50 years Cover Block Size (mm): All Faces 33 Min Cover Size (mm): All Faces 28 Max Cover Size (mm): All Faces 38 Exposure induced by Carbonation: All Faces XC3/4 Corrosion induced by Chloride: XD2 Freeze/thaw attack: XF3 Chemical attack: XA2
    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 = 0mm ID and Max Pipe Opening Pastic/Clayware = 300mm ID
    AlthonToeInformationOur AH4C headwall range is available with toe extensions either 300mm thick with depths ranging from 450, 700 to 1000mm

    Built with: Autodesk Inventor Professional 2018

    AH4C B LH Angled Headwall - 225mm ID pipe - 100mm Invert Level + 450 x 300mm Toe

    Example Render

    AH4C B LH Angled Headwall - 225mm ID pipe - 100mm Invert Level + 450 x 300mm Toe render

    RFA Object

    Version: 1
    Last Updated: April 29, 2019, 9 a.m.

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    ADSK Object

    Version: 1
    Last Updated: April 29, 2019, 9 a.m.

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    IFC Object

    Version: 1
    Last Updated: April 29, 2019, 9 a.m.

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    COBie Parameters

    Parameter Name Parameter Value
    NamePrecastConcreteHeadwall_AH4CBLH_225mmIDPipe_100mmIL_450x300mmT_AlthonLimited
    CreatedBydrawings@althon.co.uk
    CreatedOn2019-04-29T09:00:00
    Categoryn/a
    DescriptionPrecast Concrete Headwall
    AssetTypeFixed
    Manufacturersales@althon.co.uk
    ModelNumberAH4CBLH
    WarrantyGuarantorPartsn/a
    WarrantyDurationPartsn/a
    WarrantyGuarantorLaborn/a
    WarrantyDurationLaborn/a
    WarrantyDurationUnityear
    ReplacementCostn/a
    ExpectedLife>50
    DurationUnityear
    WarrantyDescriptionn/a
    NominalLength1200
    NominalWidth400
    NominalHeight800
    ModelReferencePrecast Concrete Headwall
    Shapen/a
    Size1200 x 400 x 800
    ColourLight Grey
    FinishSteel mould concrete finish
    Graden/a
    MaterialConcrete
    Constituentsn/a
    FeaturesLifting sockets cast into the headwall
    AccessibilityPerformancen/a
    CodePerformanceBS EN 15258:2008
    SustainabilityPerformancen/a

    Althon_General Parameters

    Parameter Name Parameter Value
    AuthorAlthon Limited
    BIMObjectNameAlthonLimited_PrecastConcreteHeadwall_AH4CBLH_225mmIDPipe_100mmIL_450x300mmT
    Version1
    LastUpdated2019-04-29T09:00:00
    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/ah4c-b-lh-angled-headwall/detail/
    DocumentationInstallationGuidehttps://www.althon.co.uk/products/ah4c-b-lh-angled-headwall/detail/
    DocumentationTechnicalhttps://www.althon.co.uk/products/ah4c-b-lh-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 150mm of semi-dry concrete. 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 - Anchor points & loops 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: >50 years Cover Block Size (mm): All Faces 33 Min Cover Size (mm): All Faces 28 Max Cover Size (mm): All Faces 38 Exposure induced by Carbonation: All Faces XC3/4 Corrosion induced by Chloride: XD2 Freeze/thaw attack: XF3 Chemical attack: XA2
    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 = 0mm ID and Max Pipe Opening Pastic/Clayware = 300mm ID
    AlthonToeInformationOur AH4C headwall range is available with toe extensions either 300mm thick with depths ranging from 450, 700 to 1000mm

    Built with: Autodesk Inventor Professional 2018

    AH4C B LH Angled Headwall - 225mm ID pipe - 100mm Invert Level + 700 X 300mm Toe

    Example Render

    AH4C B LH Angled Headwall - 225mm ID pipe - 100mm Invert Level + 700 X 300mm Toe render

    RFA Object

    Version: 1
    Last Updated: April 29, 2019, 9 a.m.

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    ADSK Object

    Version: 1
    Last Updated: April 29, 2019, 9 a.m.

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    IFC Object

    Version: 1
    Last Updated: April 29, 2019, 9 a.m.

    Download IFC Object

    COBie Parameters

    Parameter Name Parameter Value
    NamePrecastConcreteHeadwall_AH4CBLH_225mmIDPipe_100mmIL_700x300mmT_AlthonLimited
    CreatedBydrawings@althon.co.uk
    CreatedOn2019-04-29T09:00:00
    Categoryn/a
    DescriptionPrecast Concrete Headwall
    AssetTypeFixed
    Manufacturersales@althon.co.uk
    ModelNumberAH4CBLH
    WarrantyGuarantorPartsn/a
    WarrantyDurationPartsn/a
    WarrantyGuarantorLaborn/a
    WarrantyDurationLaborn/a
    WarrantyDurationUnityear
    ReplacementCostn/a
    ExpectedLife>50
    DurationUnityear
    WarrantyDescriptionn/a
    NominalLength1200
    NominalWidth400
    NominalHeight800
    ModelReferencePrecast Concrete Headwall
    Shapen/a
    Size1200 x 400 x 800
    ColourLight Grey
    FinishSteel mould concrete finish
    Graden/a
    MaterialConcrete
    Constituentsn/a
    FeaturesLifting sockets cast into the headwall
    AccessibilityPerformancen/a
    CodePerformanceBS EN 15258:2008
    SustainabilityPerformancen/a

    Althon_General Parameters

    Parameter Name Parameter Value
    AuthorAlthon Limited
    BIMObjectNameAlthonLimited_PrecastConcreteHeadwall_AH4CBLH_225mmIDPipe_100mmIL_700x300mmT
    Version1
    LastUpdated2019-04-29T09:00:00
    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/ah4c-b-lh-angled-headwall/detail/
    DocumentationInstallationGuidehttps://www.althon.co.uk/products/ah4c-b-lh-angled-headwall/detail/
    DocumentationTechnicalhttps://www.althon.co.uk/products/ah4c-b-lh-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 150mm of semi-dry concrete. 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 - Anchor points & loops 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: >50 years Cover Block Size (mm): All Faces 33 Min Cover Size (mm): All Faces 28 Max Cover Size (mm): All Faces 38 Exposure induced by Carbonation: All Faces XC3/4 Corrosion induced by Chloride: XD2 Freeze/thaw attack: XF3 Chemical attack: XA2
    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 = 0mm ID and Max Pipe Opening Pastic/Clayware = 300mm ID
    AlthonToeInformationOur AH4C headwall range is available with toe extensions either 300mm thick with depths ranging from 450, 700 to 1000mm

    Built with: Autodesk Inventor Professional 2018

    AH4C B LH Angled Headwall - 225mm ID pipe - 100mm Invert Level + 1000 x 300mm Toe

    Example Render

    AH4C B LH Angled Headwall - 225mm ID pipe - 100mm Invert Level + 1000 x 300mm Toe render

    RFA Object

    Version: 1
    Last Updated: April 29, 2019, 9 a.m.

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    ADSK Object

    Version: 1
    Last Updated: April 29, 2019, 9 a.m.

    Download ADSK Object

    IFC Object

    Version: 1
    Last Updated: April 29, 2019, 9 a.m.

    Download IFC Object

    COBie Parameters

    Parameter Name Parameter Value
    NamePrecastConcreteHeadwall_AH4CBLH_225mmIDPipe_100mmIL_1000x300mmT_AlthonLimited
    CreatedBydrawings@althon.co.uk
    CreatedOn2019-04-29T09:00:00
    Categoryn/a
    DescriptionPrecast Concrete Headwall
    AssetTypeFixed
    Manufacturersales@althon.co.uk
    ModelNumberAH4CBLH
    WarrantyGuarantorPartsn/a
    WarrantyDurationPartsn/a
    WarrantyGuarantorLaborn/a
    WarrantyDurationLaborn/a
    WarrantyDurationUnityear
    ReplacementCostn/a
    ExpectedLife>50
    DurationUnityear
    WarrantyDescriptionn/a
    NominalLength1200
    NominalWidth400
    NominalHeight800
    ModelReferencePrecast Concrete Headwall
    Shapen/a
    Size1200 x 400 x 800
    ColourLight Grey
    FinishSteel mould concrete finish
    Graden/a
    MaterialConcrete
    Constituentsn/a
    FeaturesLifting sockets cast into the headwall
    AccessibilityPerformancen/a
    CodePerformanceBS EN 15258:2008
    SustainabilityPerformancen/a

    Althon_General Parameters

    Parameter Name Parameter Value
    AuthorAlthon Limited
    BIMObjectNameAlthonLimited_PrecastConcreteHeadwall_AH4CBLH_225mmIDPipe_100mmIL_1000x300mmT
    Version1
    LastUpdated2019-04-29T09:00:00
    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/ah4c-b-lh-angled-headwall/detail/
    DocumentationInstallationGuidehttps://www.althon.co.uk/products/ah4c-b-lh-angled-headwall/detail/
    DocumentationTechnicalhttps://www.althon.co.uk/products/ah4c-b-lh-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 150mm of semi-dry concrete. 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 - Anchor points & loops 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: >50 years Cover Block Size (mm): All Faces 33 Min Cover Size (mm): All Faces 28 Max Cover Size (mm): All Faces 38 Exposure induced by Carbonation: All Faces XC3/4 Corrosion induced by Chloride: XD2 Freeze/thaw attack: XF3 Chemical attack: XA2
    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 = 0mm ID and Max Pipe Opening Pastic/Clayware = 300mm ID
    AlthonToeInformationOur AH4C headwall range is available with toe extensions either 300mm thick with depths ranging from 450, 700 to 1000mm

    Built with: Autodesk Inventor Professional 2018

    AH4C B LH Angled Headwall - 300mm ID pipe - 100mm Invert Level

    Example Render

    AH4C B LH Angled Headwall - 300mm ID pipe - 100mm Invert Level render

    RFA Object

    Version: 1
    Last Updated: April 29, 2019, 9 a.m.

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    ADSK Object

    Version: 1
    Last Updated: April 29, 2019, 9 a.m.

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    IFC Object

    Version: 1
    Last Updated: April 29, 2019, 9 a.m.

    Download IFC Object

    COBie Parameters

    Parameter Name Parameter Value
    NamePrecastConcreteHeadwall_AH4CBLH_300mmIDPipe_100mmIL_AlthonLimited
    CreatedBydrawings@althon.co.uk
    CreatedOn2019-04-29T09:00:00
    Categoryn/a
    DescriptionPrecast Concrete Headwall
    AssetTypeFixed
    Manufacturersales@althon.co.uk
    ModelNumberAH4CBLH
    WarrantyGuarantorPartsn/a
    WarrantyDurationPartsn/a
    WarrantyGuarantorLaborn/a
    WarrantyDurationLaborn/a
    WarrantyDurationUnityear
    ReplacementCostn/a
    ExpectedLife>50
    DurationUnityear
    WarrantyDescriptionn/a
    NominalLength1200
    NominalWidth400
    NominalHeight800
    ModelReferencePrecast Concrete Headwall
    Shapen/a
    Size1200 x 400 x 800
    ColourLight Grey
    FinishSteel mould concrete finish
    Graden/a
    MaterialConcrete
    Constituentsn/a
    FeaturesLifting sockets cast into the headwall
    AccessibilityPerformancen/a
    CodePerformanceBS EN 15258:2008
    SustainabilityPerformancen/a

    Althon_General Parameters

    Parameter Name Parameter Value
    AuthorAlthon Limited
    BIMObjectNameAlthonLimited_PrecastConcreteHeadwall_AH4CBLH_300mmIDPipe_100mmIL
    Version1
    LastUpdated2019-04-29T09:00:00
    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/ah4c-b-lh-angled-headwall/detail/
    DocumentationInstallationGuidehttps://www.althon.co.uk/products/ah4c-b-lh-angled-headwall/detail/
    DocumentationTechnicalhttps://www.althon.co.uk/products/ah4c-b-lh-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 150mm of semi-dry concrete. 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 - Anchor points & loops 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: >50 years Cover Block Size (mm): All Faces 33 Min Cover Size (mm): All Faces 28 Max Cover Size (mm): All Faces 38 Exposure induced by Carbonation: All Faces XC3/4 Corrosion induced by Chloride: XD2 Freeze/thaw attack: XF3 Chemical attack: XA2
    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 = 0mm ID and Max Pipe Opening Pastic/Clayware = 300mm ID
    AlthonToeInformationOur AH4C headwall range is available with toe extensions either 300mm thick with depths ranging from 450, 700 to 1000mm

    Built with: Autodesk Inventor Professional 2018

    AH4C B LH Angled Headwall - 300mm ID pipe - 100mm Invert Level + 450 x 300mm Toe

    Example Render

    AH4C B LH Angled Headwall - 300mm ID pipe - 100mm Invert Level + 450 x 300mm Toe render

    RFA Object

    Version: 1
    Last Updated: April 29, 2019, 9 a.m.

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    ADSK Object

    Version: 1
    Last Updated: April 29, 2019, 9 a.m.

    Download ADSK Object

    IFC Object

    Version: 1
    Last Updated: April 29, 2019, 9 a.m.

    Download IFC Object

    COBie Parameters

    Parameter Name Parameter Value
    NamePrecastConcreteHeadwall_AH4CBLH_300mmIDPipe_100mmIL_450x300mmT_AlthonLimited
    CreatedBydrawings@althon.co.uk
    CreatedOn2019-04-29T09:00:00
    Categoryn/a
    DescriptionPrecast Concrete Headwall
    AssetTypeFixed
    Manufacturersales@althon.co.uk
    ModelNumberAH4CBLH
    WarrantyGuarantorPartsn/a
    WarrantyDurationPartsn/a
    WarrantyGuarantorLaborn/a
    WarrantyDurationLaborn/a
    WarrantyDurationUnityear
    ReplacementCostn/a
    ExpectedLife>50
    DurationUnityear
    WarrantyDescriptionn/a
    NominalLength1200
    NominalWidth400
    NominalHeight800
    ModelReferencePrecast Concrete Headwall
    Shapen/a
    Size1200 x 400 x 800
    ColourLight Grey
    FinishSteel mould concrete finish
    Graden/a
    MaterialConcrete
    Constituentsn/a
    FeaturesLifting sockets cast into the headwall
    AccessibilityPerformancen/a
    CodePerformanceBS EN 15258:2008
    SustainabilityPerformancen/a

    Althon_General Parameters

    Parameter Name Parameter Value
    AuthorAlthon Limited
    BIMObjectNameAlthonLimited_PrecastConcreteHeadwall_AH4CBLH_300mmIDPipe_100mmIL_450x300mmT
    Version1
    LastUpdated2019-04-29T09:00:00
    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/ah4c-b-lh-angled-headwall/detail/
    DocumentationInstallationGuidehttps://www.althon.co.uk/products/ah4c-b-lh-angled-headwall/detail/
    DocumentationTechnicalhttps://www.althon.co.uk/products/ah4c-b-lh-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 150mm of semi-dry concrete. 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 - Anchor points & loops 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: >50 years Cover Block Size (mm): All Faces 33 Min Cover Size (mm): All Faces 28 Max Cover Size (mm): All Faces 38 Exposure induced by Carbonation: All Faces XC3/4 Corrosion induced by Chloride: XD2 Freeze/thaw attack: XF3 Chemical attack: XA2
    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 = 0mm ID and Max Pipe Opening Pastic/Clayware = 300mm ID
    AlthonToeInformationOur AH4C headwall range is available with toe extensions either 300mm thick with depths ranging from 450, 700 to 1000mm

    Built with: Autodesk Inventor Professional 2018

    AH4C B LH Angled Headwall - 300mm ID pipe - 100mm Invert Level + 700 X 300mm Toe

    Example Render

    AH4C B LH Angled Headwall - 300mm ID pipe - 100mm Invert Level + 700 X 300mm Toe render

    IFC Object

    Version: 1
    Last Updated: April 29, 2019, 9 a.m.

    Download IFC Object

    RFA Object

    Version: 1
    Last Updated: April 29, 2019, 9 a.m.

    Download RFA Object

    ADSK Object

    Version: 1
    Last Updated: April 29, 2019, 9 a.m.

    Download ADSK Object

    COBie Parameters

    Parameter Name Parameter Value
    NamePrecastConcreteHeadwall_AH4CBLH_300mmIDPipe_100mmIL_700x300mmT_AlthonLimited
    CreatedBydrawings@althon.co.uk
    CreatedOn2019-04-29T09:00:00
    Categoryn/a
    DescriptionPrecast Concrete Headwall
    AssetTypeFixed
    Manufacturersales@althon.co.uk
    ModelNumberAH4CBLH
    WarrantyGuarantorPartsn/a
    WarrantyDurationPartsn/a
    WarrantyGuarantorLaborn/a
    WarrantyDurationLaborn/a
    WarrantyDurationUnityear
    ReplacementCostn/a
    ExpectedLife>50
    DurationUnityear
    WarrantyDescriptionn/a
    NominalLength1200
    NominalWidth400
    NominalHeight800
    ModelReferencePrecast Concrete Headwall
    Shapen/a
    Size1200 x 400 x 800
    ColourLight Grey
    FinishSteel mould concrete finish
    Graden/a
    MaterialConcrete
    Constituentsn/a
    FeaturesLifting sockets cast into the headwall
    AccessibilityPerformancen/a
    CodePerformanceBS EN 15258:2008
    SustainabilityPerformancen/a

    Althon_General Parameters

    Parameter Name Parameter Value
    AuthorAlthon Limited
    BIMObjectNameAlthonLimited_PrecastConcreteHeadwall_AH4CBLH_300mmIDPipe_100mmIL_700x300mmT
    Version1
    LastUpdated2019-04-29T09:00:00
    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/ah4c-b-lh-angled-headwall/detail/
    DocumentationInstallationGuidehttps://www.althon.co.uk/products/ah4c-b-lh-angled-headwall/detail/
    DocumentationTechnicalhttps://www.althon.co.uk/products/ah4c-b-lh-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 150mm of semi-dry concrete. 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 - Anchor points & loops 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: >50 years Cover Block Size (mm): All Faces 33 Min Cover Size (mm): All Faces 28 Max Cover Size (mm): All Faces 38 Exposure induced by Carbonation: All Faces XC3/4 Corrosion induced by Chloride: XD2 Freeze/thaw attack: XF3 Chemical attack: XA2
    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 = 0mm ID and Max Pipe Opening Pastic/Clayware = 300mm ID
    AlthonToeInformationOur AH4C headwall range is available with toe extensions either 300mm thick with depths ranging from 450, 700 to 1000mm

    Built with: Autodesk Inventor Professional 2018

    AH4C B LH Angled Headwall - 300mm ID pipe - 100mm Invert Level + 1000 x 300mm Toe

    Example Render

    AH4C B LH Angled Headwall - 300mm ID pipe - 100mm Invert Level + 1000 x 300mm Toe render

    RFA Object

    Version: 1
    Last Updated: April 29, 2019, 9 a.m.

    Download RFA Object

    ADSK Object

    Version: 1
    Last Updated: April 29, 2019, 9 a.m.

    Download ADSK Object

    IFC Object

    Version: 1
    Last Updated: April 29, 2019, 9 a.m.

    Download IFC Object

    COBie Parameters

    Parameter Name Parameter Value
    NamePrecastConcreteHeadwall_AH4CBLH_300mmIDPipe_100mmIL_1000x300mmT_AlthonLimited
    CreatedBydrawings@althon.co.uk
    CreatedOn2019-04-29T09:00:00
    Categoryn/a
    DescriptionPrecast Concrete Headwall
    AssetTypeFixed
    Manufacturersales@althon.co.uk
    ModelNumberAH4CBLH
    WarrantyGuarantorPartsn/a
    WarrantyDurationPartsn/a
    WarrantyGuarantorLaborn/a
    WarrantyDurationLaborn/a
    WarrantyDurationUnityear
    ReplacementCostn/a
    ExpectedLife>50
    DurationUnityear
    WarrantyDescriptionn/a
    NominalLength1200
    NominalWidth400
    NominalHeight800
    ModelReferencePrecast Concrete Headwall
    Shapen/a
    Size1200 x 400 x 800
    ColourLight Grey
    FinishSteel mould concrete finish
    Graden/a
    MaterialConcrete
    Constituentsn/a
    FeaturesLifting sockets cast into the headwall
    AccessibilityPerformancen/a
    CodePerformanceBS EN 15258:2008
    SustainabilityPerformancen/a

    Althon_General Parameters

    Parameter Name Parameter Value
    AuthorAlthon Limited
    BIMObjectNameAlthonLimited_PrecastConcreteHeadwall_AH4CBLH_300mmIDPipe_100mmIL_1000x300mmT
    Version1
    LastUpdated2019-04-29T09:00:00
    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/ah4c-b-lh-angled-headwall/detail/
    DocumentationInstallationGuidehttps://www.althon.co.uk/products/ah4c-b-lh-angled-headwall/detail/
    DocumentationTechnicalhttps://www.althon.co.uk/products/ah4c-b-lh-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 150mm of semi-dry concrete. 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 - Anchor points & loops 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: >50 years Cover Block Size (mm): All Faces 33 Min Cover Size (mm): All Faces 28 Max Cover Size (mm): All Faces 38 Exposure induced by Carbonation: All Faces XC3/4 Corrosion induced by Chloride: XD2 Freeze/thaw attack: XF3 Chemical attack: XA2
    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 = 0mm ID and Max Pipe Opening Pastic/Clayware = 300mm ID
    AlthonToeInformationOur AH4C headwall range is available with toe extensions either 300mm thick with depths ranging from 450, 700 to 1000mm

    Built with: Autodesk Inventor Professional 2018

    Brochures, Datasheets and Installation Instructions for AH4C B LH Angled Headwall

    AH4C Datasheet and Installation Guide

    Download

    Left & Right Hand Angled Range

    Download

    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