The main specialties of lightweight concrete are its low density and thermal conductivity. Its advantages are that there is a reduction of dead load, faster building rates in construction and lower haulage and handling costs.

These reduce weight of building itself and decrease building energy consumption depending on their low density and excellent thermal insulation performance. In the past period of time, organic thermal insulation materials such as polyurethane foams and expanded polystyrene (EPS) have been used by because of their low cost and high efficiency in heat preservation.