超细矿渣粉对泡沫混凝土制备和性能的影响

摘要

High performance and low density foamed concrete has been prepared from Portland cement in cooperated with the addition of ultrafine slag powder and by means of chemical foaming process. The effect of ultrafine slag powder addition into the Portland cement slurry on the preparation process and properties of foamed concrete was discussed. Results showed that high performance foamed concrete with its dry density as low as 300 kg/m3 could be prepared by controlling the addition of ultrafine slag powder 20% and water to binder ratio 0.48, with its dry corresponding thermal conductivity of 0.060 W/(m·K)and compressive strength at 28 d curing age of 1.04 MPa.%利用硅酸盐水泥和超细矿渣粉,采用化学发泡方法制备高性能、低密度的泡沫混凝土.探讨了超细矿渣粉的添加对泡沫混凝土制备和性能的影响.结果表明,当超细矿渣粉用量为水泥质量的20％,水胶比为0.48时,可以制得干密度为300 kg/m3的低密度泡沫混凝土,其导热系数为0.060 W/(m·K),28 d抗压强度达1.04 MPa.