HS2’s Westgate Headhouse

Location icon London, United Kingdom
Ref #: 11102024
Category: TRANSPORTATION

Construction

Yard Mapei solutions have been used to waterproof and protect fire control and ventilation systems at HS2’s Westgate Headhouse in West London.
Location London, United Kingdom
Subcategory RAILWAY LINK, RAILWAY STATION, TUNNEL
Application The works on the Northolt Tunnel route were delivered by Byrne Bros for SCS JV. All Mapei products were supplied by BlueBay Building Products Ltd.
Four Mapei products were used to waterproof and protect the headhouse and its contents.  Before pouring concrete, Mapeproof AL AP pre-applied, fully bonded, self-adhering HDPE waterproofing membrane was applied; upon contact with concrete, the robust membrane forms a monolithic bond.  Mapeproof AL 1200 AP – a HDPE self-adhesive waterproof membrane - was then post applied, followed by the application of waterproofing Mapeproof Liquid Membrane – a polyurethane elastomeric, thixotropic membrane used to seal, fill and detail. All of the concrete construction joints were made fully watertight with Idrostop 10 hydrophilic expanding rubber profiles.
Application Type Waterproofing
Installer companies Byrne Bros for SCS JV
MAPEI Distributor BlueBay Building Products Ltd

Product used for the project

IDROSTOP
IDROSTOP
Hydrophilic, expanding rubber profiles for waterproof working joints. TECHNICAL…
MAPEPROOF AL AP
MAPEPROOF AL AP
Pre-applied, fully bonded, self-adhering, HDPE waterproofing membrane to…
MAPEPROOF AL 1200 AP
MAPEPROOF AL 1200 AP
Product not available for this market,
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