摘   要：本试验将等质量板垃圾和柱垃圾破碎、筛分后制成再生砂，利用二水石膏、胶粉、纤维素醚等原料制备膜化剂并对建筑垃圾再生砂进行膜化处理，制备了CL和CLT两种试块，通过正交试验和方差分析研究了二水石膏、胶粉、纤维素醚对不同试块性能的影响。试验结果表明，抗压强度效果最好的膜化配比分别为4%石膏、2%胶粉、0.6%纤维素醚和4%石膏、3%胶粉、0.2%纤维素醚；抗折强度效果最好的膜化配比均为4%石膏、1%胶粉和0.2%纤维素醚，三种因素对吸水率影响都不大，但CLT试块的吸水率都小于CL试块。

Abstract: The construction waste reclaimed sand is produced by the same quality of plate waste and column waste which are crushed and screened. The membrane agent is prepared by mixing dihydrate gypsum, powder, cellulose ethers and other raw materials, and membrane treatment of construction waste reclaimed sand is carried out, which is produced for cement mortar of CL and CLT. The influence of dihydrate gypsum, powder, cellulose ethers on performance of different blocks is studied by the method of orthogonal level analysis and variance analysis. The results show that the best membrane of the compressive strength ratio is 4% gypsum, 2% powder, 0.6% cellulose and 4% gypsum, 3% powder, 0.2% cellulose respectively. The best membrane of the flexural strength ratio is 4% gypsum, 1% powder and 0.2% cellulose ethers. Three factors have little effects on its absorption. However, the absorption rate of CLT block is less than the CL block.