Cellular concrete is composed of a mixture of crushed siliceous sand, cement, lime and aluminum powder. Everything is cooked in an autoclave. The chemical reaction creates a multitude of hydrogen bubbles that give it its lightness (600 kg per cubic meter against more than 2 t for standard concrete) and its insulating power (25 cm insulate as much as 4 cm of glass wool).
Properties and uses
Water repellent and good hygrometric regulator, the cellular concrete does not fear the contact with the reasonable humidity. It can be used without extra protection in kitchens, bathrooms.
Partitions and small arrangements: length = 62.5 cm - height = 25 and 50 cm - thickness = 5 to 10 cm. You can choose elements with straight edges or with grooves and tongues.
Bearing walls: length = 62.5 to 100 cm - height = 25 to 50 cm - thickness = 20 to 30 cm. Various blocks and several profiles are proposed. There are also "floor height" panels. They make it possible to build bearing walls in record time.
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