In construction sector, parallel to increasing the importance of lightweight structural materials, usage of pumice as a building material at raw material consumption is becoming widespread in recent years. In the historical development process, the requirement of using lightweight concrete mixtures at buildings in construction sector relied on very old times is also a known fact. Having high insulative features in terms of heat-sound insulation, it is possible to see many examples on the use of achieving lightweight concrete. Using lightweight building materials in lighweight concrete structures offers lots of advantages because of having heat-sound insulation and also being unit weight much less than normal concrete.