DURABILITY OF LIGHTWEIGHT AGGREGATE CONCRETE PANEL FOR MODULAR HOUSING
Lightweight aggregate concrete is usually defined as a concrete having an air-dry density of below 1850 kg/m3 , as opposed to a normal concrete having a density of about 2300 kg/m3 but a finite limit is undesirable. Durability can be defined as the ability of material to withstand the effects of its environment. In the building material its may be interpreted as chemical attack, water absorption and carbonation. Based on the a 24 hr absorption test, lightweight aggregate generally absorbs from 5 to 20 percent by weight of dry aggregate, depending on the pore structure of the aggregate.