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The Wellington Stadium
The
Wellington Stadium
New Zealand's first use of high strength lightweight precast
concrete
By Leonard G. McSaveney
Wellington Stadium, with a seating capacity of 40,000, is New Zealand's first purpose-built modern sports stadium. It is also the first major structure in New Zealand to be built with lightweight aggregate concrete. Expanded shale aggregate, imported from California, was used to produce lightweight concrete for all the pre-cast components in the main stadium bowl structure. Concrete with a cylinder strength of 35 MPa was chosen for durability reasons, and also to achieve an overnight strength of 25 MPa for the efficient production of pre-tensioned units for the bleachers, long span inclined raker beams and pre-finished double tee flooring.
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