The Onecrete Building System is a light weight Autoclaved Aerated Concrete (AAC) load bearing panel with a
strong and unique fixing system. Onecrete Building System panels are an environmentally friendly, easy to
erect and cost effective alternative to traditional rendered brick and block work construction.
The main component of Onecrete is Autoclaved Aerated Concrete (AAC) which has been extensively and
successfully used in the building industry for the last 40 years. Onecrete's innovative design allows the
panels to be load bearing and cyclone resistant. Onecrete is manufactured by CSR, a leading supplier of building
products in Australia. Onecrete load bearing panels are well suited for one and two storey housing, medium density
commercial, aged care facilities, schools and similar buildings.
Onecrete has patented its unique load bearing design. There is no longer a need to construct an expensive and time
consuming external frame. The Onecrete panels, interior walls and roof lock together to form an extremely robust
building. Onecrete weighs about one fifth of the weight of a regular concrete panel making it easier and more efficient
to transport and erect.
Once the building foundation has been laid the exterior walls of a home built with the Onecrete Panel system can be
assembled by three men, in as little as four days. The speed of construction is aided by the light weight nature of
Onecrete and the quick placing of panels by using a purpose designed lifting machine. The time saving advantages over
traditional brick building are obvious.
The Onecrete Cyclone Panel is a more durable version of our standard panel. It has been extensively tested by Griffith
University, Queensland, and is wind rated at W65 or greater. The patented design effectively bolts the whole house structure,
including the roof, to the concrete slab. Onecrete builders can build a cyclone rated building for very little additional
expense over the cost of building a standard home. The strength and light weight properties of Onecrete also make it an
ideal material for building in earthquake prone zones.
Onecrete is made 100% from inorganic materials and is extremely fire resistant. AAC can withstand temperatures
of up to 1600ºC and boasts a four hour fire rating.
The Onecrete sealing system locks vermin and termites outside the building. A properly sealed Onecrete product also
reduces mould infestation.
With Australia’s predominantly hot dry climate, termites are a real problem to home owners, with one recent
newspaper report suggesting that in the South East Queensland border region alone “up to 30,000 Gold Coast homes
could be affected by termites”.
The use of termite resistant materials is one of the most effective means of avoiding attack and the Onecrete Building System
employs this principle. Floors are either reinforced concrete slabs on ground on level or cut and fill sites, or steel post,
bearer and joist construction in elevated situations. Walls are reinforced lightweight concrete panels externally and plasterboard
lined steel framing internally. Windows and sliding doors are aluminium framed. Roofs are constructed with steel-framed trusses and
clad with either concrete tiles or Colorbond decking.
This selection of materials, in combination with any chemical treatment or physical barrier to attack required by law,
makes our building system extremely resistant to termite infestation.
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AAC's cellular structure gives it a thermal efficiency 10 times higher than that of aggregate concrete and
two to three times better than clay brick. Consequently, buildings made of Onecrete are warm in winter and
cool in summer and benefit from lower associated heating and air-conditioning costs. In tests conducted in
Australia, the exterior surface temperature of an AAC panel painted black and exposed to direct sunlight,
soared to as much as 82ºC over a 24hr period. The interior surface of that same Onecrete Panel remained at
a constant 16.7ºC over that same period. Onecrete's thermal qualities also make it an excellent medium for
retaining cold air inside homes and light commercial buildings.
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Onecrete users enjoy the benefits of immediate and long term environmental benefits. The computerised product specification
and factory manufacture ensure minimal waste in production. Furthermore, much less energy is required in the production of
AAC than other competing building materials. No harmful emissions or toxic chemicals are released in the manufacture of
Onecrete. Finally, as the product is "made to measure" in the factory there is minimal on-site wastage.
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Source: 3RD Rilem International Symposium Zurich 1992 |
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Not only is the burning of fossil fuels to create electricity damaging the global environment, it is becoming
increasingly expensive to produce electricity. The Australian Greenhouse Office (AGO), an Australian Government
department, estimates that around 39% of energy use in the average Australian home is used on space heating and cooling.
Source: AGO
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As Onecrete easily outperforms competing building materials in thermal efficiency, this means substantial energy savings for both
hot and cool environments over time. Better for the environment, better for you!
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| Source: 3RD Rilem International Symposium Zurich 1992 |
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