Thermal Properties of Foam Mortars used Bentonite as Supplementary Cementitious Material

Abstract

The construction sector has an important role in solving of energy shortage and global warming problems. Therefore, innovative studies focused on building materials are among the priority topics. Foam concrete is one of them. However, foam concrete needs to be improved through the components of the final product in terms of efficieny and sustainability. In this study, it has thought that it could be improve the thermal performaces of foam concretes due to blended cement used bentonite with high thermal performance. On the other hand, thanks to the use of blended cements, reduction in CO2 emissions and more economical cement production would be achieved. The aim of the study is to examining physical, mechanical and thermal properties of foam mortars used bentonite as supplementary cementitious material (SCM). For this aim, it is carried out tests on foam mortars produced with blended cements at replacement ratios determined as 0, 5, 10, 15 wt.% of Portland cement. The results were discussed comparatively among produced series. According to the obtained experimental data, the strength and thermal properties of foam mortars could be developed due to blended cements produced with bentonite additive up to 15% replacement ratio.