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McCosker Water Treatment Tank, Australia

ULMA Solution for proper load distribution
McCosker Contracting contracted ULMA&Uni-span‘s expertise to complete the upgrade and expansion of the Water Treatment Plant.


McCosker Contracting were engaged to upgrade and expand their client’s ammonium nitrate plant together with the infrastructure required to support this plant. McCosker Contracting contracted ULMA&Uni-Span‘s expertise to complete the upgrade and expansion of the Water Treatment Plant.

ULMA Solution

ULMA&Uni-Span’s formwork solution consisting of 594 square metres of the ORMA single sided wall formwork system, in conjunction with MK frames, was a clear winner for the 5.4 metre high structure. 2 x Scaffold stair access towers provided the right accessibility for this project.

There were challenges to overcome, with the main concern experienced through the design of this particular formwork. ULMA&Uni-Span Formwork Solutions had to take into account the loads imposed by our formwork system and more importantly the live loads of the concrete during the pour, all whilst governed by a ground slab of 300mm and screw piles. Requirements were for the design to allow a 5.4m full height pour with only 4  x construction joints to this rectangular shaped tank.

This alternative support came in the way of the ALUPROP system. The advantages of this high load capacity post shore coupled with a project specific component that Uni-span had fabricated for this sole purpose, allowed us to provide adequate support and load distribution. The introduction of the ALUPROPs on the outside of the frames was a first for Uni-span and due to their complementary properties, saved the client from a full redesign of the ground slabs.