Modelling of the effect of the water-cement ratios on properties foam concrete

Abstract

Foam concrete has been widely used in the High-Rise buildings for both structural, non-structural purposes and other applications. This paper discusses the development of foam concrete containing various the water-cement ratios from 0.4 to 0.8 was prepared from ordinary Portland cement SEM I 42.5 N and foaming agent of EABASSOC. Effects of the water-cement ratio on the porosity structure of foam concrete, as well as dry density and strength of the tested foam concrete, were discussed. Moreover, quantitatively simulation of the relationship between compressive strength at age 28 days and dry density of foam concrete is determined through experimental results for predicting the properties of foam concrete from the knowledge of its mixture proportions. Results of this study showed that the water-cement ratio can influence the porosity in the microstructure of foam concrete, while the optimal water-cement ratios of the foam concrete prepared with design density of 400, 500, 600, 700, and 800 kg/m3 are also obtained of 0.58, 0.54, 0.56, 0.55, and 0.53, respectively.