THERMAL PERFORMANCE & FIRE RESISTANCE OF AUTOCLAVED AERATED CONCRETE EXPOSED HUMIDITY CONDITIONS

Abstract

Autoclaved Aerated Concrete (AAC) is also being produced for many years, there are still some points that need to be clarified. One of these points needs to know is humidity intrusion effects on AAC members in areas with high relative humidity levels of Mediterranean climates which are important in durability and insulation properties of AAC. Therefore, some tests on mechanical and physical properties of ACC concrete carried out. These include thermal insulation and fire resistance tests under different level of humidity ACC blocks. According to the test results; increasing in humidity condition inside the chamber during heating procedure under steady state condition, caused increasing in average temperature change on outside surface of AAC wall. AAC losses its mass and mechanical properties subjected to the high elevated temperature above 500°C.