Triton Chemicals - Waterproof concrete system specified at Goldsmiths College
Supplier: Triton Chemicals
Customer: Architects Stride Treglown of Bristol and main contractor, Willmott Dixon Construction
Location: DMC Building at Goldsmiths College
Summary of the Project
Triton’s TT Super Admix has been used to produce 900m³ of watertight concrete, specified for the construction of the basement at the new DMC Building at Goldsmiths College.
Triton TT Super Admix was added at a rate of 4.1kg/m3 to a mix of 20% PFA blend (minimum cement content 350kg/m3). The concrete was supplied by Hansons Concrete and is being used in the construction of the concrete capping beam to the top of the piles, the reinforced concrete liner walls (150mm - 200mm) and the reinforced concrete floor slab (300mm). All construction joints to the capping beam, wall capping beam, wall/floor and floor/floor joints are to be waterproofed with Triton’s TT Swellmastic and TT Waterstop forming a completely watertight concrete system. Typical cross section detail.
A twin waterproofing approach was proposed by City Basements (Toureen Mangan) and Triton and accepted by the architects, Stride Treglown of Bristol and main contractor, Willmott Dixon Construction.
Therefore the Triton watertight concrete system - the primary method of waterproofing – will be backed up by an internal cavity drain system which will be installed when the watertight concrete construction is complete.
The basement will house two lecture theatres, TV and photographic studios and associated areas. The basement is 4.5m deep and extends to the complete 1800m² footprint of the new, two storey building above.