27 Research of Properties of Foam Concrete Under Different Cementing Material Systems
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Effect of cementing material type on foam concrete under different water ratio, fly ash content and foam content was studied by the method of orthogonal experimental design, in which compressive strength, apparent density and thermal conductivity was considered as the evaluation index. It was found that, on the condition of same quantity of cementing materials, the order of influencing significance on compressive strength of different cementing material was: rapid-hardening sulphate aluminium cement (RSC) > ordinary Portland cement (PO) > Portland slag cement (PS), the order of influencing significance on apparent density was: PS > RSC > PO, and that of thermal conductivity was RSC > PO > PS. The optimum test data of compressive strength, apparent density and thermal conductivity was 5.74MPa, 203kg/m3 and 0.041W/m.k−1 respectively.