Houses made of lightweight concrete

The essential characteristic of lightweight concrete is its porosity, which results in low apparent specific gravity. In concrete construction, selfweight represents a very large portion of the load on the structure, and there are considerable advantages in reducing the density of concrete. Furthermore using lightweight concrete improves construction and handling techniques; larger units are often desirable; obviously transportation and on-site handling would be made more economical. Giving better thermal insulation than ordinary concrete. The practical range of densities of lightweight concrete is between about 300 and 1850 kg/m3.