The influence degree and law of foaming effect,wet apparent density,setting time and compressive strength of foamed concrete were studied and analyzed by orthogonal test with the factors of cementitious material composition,mineral admixtures,water binder ratio,and foaming agent.The comprehensive scoring method is used to determine the optimal mix ratio.The results indicate that the water binder ratio rule is not applicable to foam concrete.The fluidity,foam stability and setting performance of foam concrete were optimized by adding and adjusting superplasticizer,foam stabilizing agent,water retaining agent and accelerator.The pressure change of wet apparent density of foam concrete was measured by pressure test method,which provided an evaluation basis for the optimization of mix ratio design.
ready-mixed foam concretemulti-factor orthogonal testfoaming agentfoam stability performancewet apparent density
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