Twinwall construction is a walling system that
combines the speed of erection and quality of precast concrete with
the structural integrity of in-situ concrete to provide a hybrid
solution. The prefabricated panels comprise two slabs separated and
connected by cast-in lattice girders. The units are placed,
temporarily propped, then joined by reinforcing and concreting the
cavity on site. Twinwall is usually employed in association with
precast flooring systems.
The panels are manufactured to exacting
tolerances, have a high quality finish, and can incorporate cast-in
cable ducts, electrical boxes and service ports. Installation rates
are of up to 100m2 per hour. Twinwall has excellent inherent fire
resistance and acoustic performance.
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Residential Cellular Concrete Buildings