建筑垃圾挂浆膜化机制对水泥砂浆性能的影响
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摘要
将二水石膏、胶粉、纤维素醚等原料对建筑垃圾再生砂进行膜化处理制备水泥砂浆,通过正交试验和方差分析研究了二水石膏、胶粉、纤维素醚对其性能的影响,得出了抗压强度效果最好的膜化配比为4%石膏、2%胶粉和0.6%纤维素醚,抗折强度效果最好的膜化配比为4%石膏、1%胶粉和0.2%纤维素醚,三种因素对其吸水率影响不大。试验结果表明,经膜化处理建筑垃圾制备的水泥砂浆的性能要优于未处理的建筑垃圾制备的水泥砂浆。
The dihydrate gypsum, powder, cellulose ethers and other raw materials are used for construction waste reclaimed sand membrane treatment and preparation of cement mortar, and the effect of dihydrate gypsum, powder, cellulose ethers on performance of cement mortar is studied by the method of orthogonal level analysis and variance analysis. The results show that the membrane proportion of mortar with the best compressive strength is 4% gypsum, 2% powder and0.6% cellulose ether, the membrane proportion of mortar with the best flexural strength is 4% gypsum, 1% powder and0.2% cellulose ethers, three factors have little effect on its absorption. The test results show that the performance of cement mortar treated by membrane treatment is superior to that of cement mortar untreated.
The dihydrate gypsum, powder, cellulose ethers and other raw materials are used for construction waste reclaimed sand membrane treatment and preparation of cement mortar, and the effect of dihydrate gypsum, powder, cellulose ethers on performance of cement mortar is studied by the method of orthogonal level analysis and variance analysis. The results show that the membrane proportion of mortar with the best compressive strength is 4% gypsum, 2% powder and0.6% cellulose ether, the membrane proportion of mortar with the best flexural strength is 4% gypsum, 1% powder and0.2% cellulose ethers, three factors have little effect on its absorption. The test results show that the performance of cement mortar treated by membrane treatment is superior to that of cement mortar untreated.
引文
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[2]王瑞敏,王林秀.中国建筑垃圾现状分析及发展前景[J].建筑工程,2011(4):178-179.
[3]左传长.四川汶川地震灾区建筑垃圾资源化利用设想[J].再生资源与循环经济,2008(9):27-30.
[4]王培铭,孙振平,蒋正武.商品砂浆的研究与应用[M].北京:机械工业出版社,2006.
[5]鄢朝勇,叶建军.用固体废弃物配制生态建筑砂浆的试验研究[J].混凝土,2012(9):109-111.
[6]国家质量技术监督局.GB/T 17671-1999水泥胶砂强度检验方法(ISO)法[S].北京:中国标准出版社,1999.
[7]刘凤利,张承志,刘俊华.利用废陶瓷再生粗砂配制再生砂浆的试验研究[J].河南大学学报:自然科学版,2011(4):425-428.
[8]薛森森.王爱勤.建筑垃圾生产建筑砂浆的配合比优化[J].商品混凝土,2010(12):31-37.
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