Case Studies

WQIP Building

Project requirement Due to the location of the building in the Wynyard Quarter there is a high concentration of contaminants, high water table and saline. A waterproofing membrane was required not only to handle hydrostatic pressure but also to act as a vapour barrier protecting...

Harewood Underpass

48 Meter Pedestrian Underpass: Christchurch Western Corridor/SH1 Russley Road Another watertight underpass is completed. The brief was durability for the life of the structure with a requirement to be leak free to maintain the integrity of both the profiled panel façades and the Architectural Coating. Project...

Novotel Hotel, Christchurch

Project requirement A weather tight, thermally and acoustically insulated, joint system capable of cycling through the engineered movement requirement and colour matched to the finished facade on three joints with a fire rating requirement on one. The movement requirements were both laterally and in shear. Solution Seismic...

Auckland Art Gallery

Project requirement The project involved a significant amount of civil works, with retention piling, soil nails and ground anchors used to allow excavation and construction of new basement levels between the heritage buildings. Because it was built into the side of a hill, high hydrostatic...

The Hills Golf Club

Project requirement The self-sealing properties of the Volclay Swelltite Sodium Bentonite Membrane made an ideal choice for this & other high profile earth covered structures. With the minimum confinement criteria of 300mm earth cover (over the Swelltite) achieved; this application was very straight forward and has...

Leader Bridge Repair

Project requirement The removal and replacement of the existing mechanically fixed metal plate system with a more permanent and safer watertight system less likely to vibrate loose as a result of continuous thermal, mechanical and seismic movement. The existing system was more difficult to install...

Auckland Museum

Project requirement The rear Southern courtyard, built in 1960, provided the space for six new floors. The courtyard was excavated to a depth of 12 metres to allow two basement levels. Above ground, four new levels were contained in a ‘bowl’ structure and topped by...

Vodafone Building

Project requirement The basement parking areas for the building were below sea level and the structure was located close to the boundaries. The site was on reclaimed land within 10m of Waitemata Harbour and the site was contaminated with various oils, petro chemicals & saline....

St Mary’s College

Project requirement Tanking to footings and precast panel retaining walls, lift pit and storage areas, plaza deck, roof and gutters Solution RCG specified Volclay tanking due to the quality of the product and the QA service that we provide. It gave the architect confidence and the...

Westpac Charter House

Project requirement The building of the three level basements required excavation down to 11 metres below street level and eight metres below sea level. The site is on reclaimed land. Ground contamination from its former use as a petrol station was mitigated with the introduction...

Case Studies

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