ACCOA FIRE RESISTANCE

Autoclaved aerated concrete provides the highest security against fire and meets the most stringent fire safety requirements. Due to its purely mineral composition, AAC is classified as a non-combustible building material. It is both resistant to fire up to 2200°F and, unlike other construction materials, heat-resistant.

AAC can thus be used as a fire wall to prevent fire from spreading, thereby protecting lives and economic assets. An 6.0" thick fire wall lasts up to minimum four (4) hours.

Small wonder, then, that AAC is used in fire safety tests as a building material for kilns to measure the fire resistance properties of other construction products. Or that some insurance companies offer reductions in fire premiums for buildings equipped with AAC fire walls.

In addition to internal fire walls, constructing outer walls of AAC contributes significantly to fire safety since most blazes start outside buildings.

Besides being fire- and heat-resistance, AAC is non-combustible and emits no toxic fumes, which can endanger human life more than fire itself.

ACCOA makes it his business to collaborate closely with researchers, architects, fire departments and insurance companies in order to maximize AAC's contribution to fire safety.

These properties make AAC the perfect building material to withstand the stringent requirements of building codes. It increases the safety of the building’s occupants and can potentially lower insurance rates. AAC can be used as cladding to protect other materials such as steel, or to increase the fire rating of concrete walls.

ACCOA AAC has remarkable fire resistance properties. The material is non-combustible and has low thermal conductivity. Due to the low thermal conductivity, heat migration takes place at a very slow rate as compared to dense concrete. Water within the material (in a crystalline form) also acts as a heat sink, and the porous structure of AAC allows the steam to escape without causing surface spalling. Tests on 8-in. thick load-bearing walls in accordance to ASTM E119 (Fire Tests of Building Construction and Materials) indicated that an 4-hour fire rating could be achieved.