用废砖制作利废型轻质墙体材料试验研究

Experimental study on producing light wall materials with waste brick

采用正交试验的方法,研究了废砖、废聚苯粒及天然砂的不同配比对利废型轻质墙材性能的影响,配制出了抗压强度5.0 MPa以上,表观密度1 100 kg/m3以下,导热系数0.2 W(/m.K)以下,50次冻循环强度损失率20%以下,质量损失率5%以下的利废型轻质墙材,并讨论了骨料的不同配比与性能的关系。

tn the paper, by using the orthogonal design method, the effects of different proportions of waste brick, waste polystyrene particle and natural sand on light wall materials was researched. The material was produced with the performances of 28d compressive strength over 5.0Mpa, apparent density below 1100kg/m3, thermal conductivity below 0.2W/（mok）, and after 50 freeze-thaw cycles the strength loss rate below 20% and mass loss rate below 5%. The relationships of different aggregate proportions and performances of wall materials were further discussed.