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AUSTRAL PRECAST

PRECAST PERMANENT

FORMWORK SYSTEM FACILITATING

MONOLITHIC CONSTRUCTION

Austral Precast Double Wall consists of a pair of precast reinforced concrete shells connected by lattice reinforcement trusses to
form a cavity that is core filled once installed on site. Double Wall enables greater savings in installation costs and time while
adding monolithic design advantages to the many other benefits of the Austral Precast whole of structure offer.
With the quality advantages of class 2 concrete finishes to both faces and production in Austral Precast’s automated
precast manufacturing facilities, Double Wall is a convincing argument.

Features and benefits An efficient permanent Suitable for construction
structural formwork where watertightness
• An excellent solution for any load is essential
bearing wall including basements, • Precast concrete solution replacing
shafts, core walls, and other conventional cast in situ construction. • Suitable for tanks and other liquid
functional walls. • Double Wall forms a monolithic. retention applications.
• Double Wall can be supplied in varying reinforced concrete structure after the • Withstand water hydraulic pressure up
overall wall thicknesses from 180mm cavity is filled with premixed concrete. to 0.2MPa (20m water head).
to 400mm depending on the structure • Suitable for walls with high engineering • Water tightness is maintained by the
and loading requirements. performance requirements such as properties of the Double Wall and
• Both faces of each Double Wall core, shear and retaining walls. installation techniques (See Double
panel are cast to a class 2 finish. • An efficient solution for boundary or Wall Technical Guide for reference).
• Installation efficiency is achieved due basement walls with restricted access. • Meets relevant Australian Standard
to relatively large and light weight • Minimal excavation required when AS 3735 – 2001 Concrete structures for
panels and the reduced effort required employed as a retaining wall. This retaining liquids.
for jointing, welding and formwork. offers cost and time savings when
• Can be installed with smaller capacity compared to conventional retaining Superior fire and
cranes than traditional solid wall walls or soil reinforced walls. combustibility performance
precast due to the reduced weight of the • Eliminates the need for welded or
hollow wall. bolted panel to panel connections. • Precast concrete panels are highly fire
• Can be integrated with Austral Precast’s resistant and are non-combustible.
flooring and column solutions for The fire resistance level is determined
simultaneous whole of structure by the thickness of the wall as specified
construction. in AS3600-2018.

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