粉煤灰发泡混凝土的试验研究

Experimental Investigation of Fly Ash Foam Concrete

研究了粉煤灰掺量对密度为250 kg/m3和200 kg/m3的发泡混凝土物理力学性能和孔结构的影响。结果表明,随着粉煤灰掺量的增加,发泡混凝土气孔更加均匀,孔径略有增加。发泡混凝土抗压强度呈先提高、后降低的趋势,但无明显降低。粉煤灰掺量为20%时,发泡混凝土的抗压强度均达到最大值。

This thesis investigates the influences of fly -ash mixing mount on the physical and mechanical performance and pore structure of foam concrete whose density is 250 kg/m^3 and 200 kg/m^3. The result shows that with the increase of fly - ash mixing mount, the pores of foam concrete are more homogeneous and their diameter increases slightly. The compression strength of foam concrete increases firstly and then decreases, but there is no obvious decline. When the mixing mount of fly - ash is 20%, the compression strength of foam concrete is of maximum.