掺和料对生土墙体材料力学性能的影响.pdfVIP

学兔兔 第13卷第4期 建 筑 材 料 学 报 Vo1．13，No．4 2010年8月 JOURNAL OF BUILDING MATERIALS Aug．，2010 文章编号：1007-9629(2010)04—0446—06 掺和料对生土墙体材料力学性能的影响 刘 军， 褚俊英， 赵金波， 袁大鹏 (沈阳建筑大学材料科学与工程学院，辽宁沈阳110168) 摘要：研究了矿渣、粉煤灰、水泥等掺和料单掺和复掺时对生土墙体材料力学性能的影响．结果表 明：单掺掺和料时，水泥对生土墙体材料力学性能的改性效果较好，矿渣次之，不宜掺入粉煤灰；复 掺掺和料的生土墙体材料与单掺或未掺掺和料的生土墙体材料相比，其抗压强度、抗折强度、抗剪 强度和收缩变形值均增加．复掺优化后的最佳组合为：矿渣、粉煤灰、水泥掺量(质量分数)分别为 12 ，12 ，8 ． 关键词：生土墙体材料；掺和料；力学性能；单掺；复掺 中图分类号：TU528 文献标志码：A doi：10．3969／j．issn．1007—9629．2010．04．006 Effect of Admixures on Mechanical Properties of Raw Clay Material for Wall LIU Jun， CHU Jun—ying， ZHAO Jin—bo， YUAN Da—peng (School of Materials Science and Engineering，Shenyang Jianzhu University，Shenyang 110168，China) Abstract：Effect of admixtures including slag，fly ash and cement as single and compound admixture on me— chanical properties of raw clay material for wall was investigated．The test results show that cement has a best modified performance about mechanical properties of raw clay material for wall and slag comes second while fly ash is not fitted to add in raw clay when they are used as unique admixture respectivly．Compared with raw clay material added with single admixture and untreated raw clay material，raw clay added with compound admixtures for making wall can make compressive strength，flexural strength，sheer strength and shrinkage of deformation increased．The optimum combination of compound admixtures optimized is：slag， fly ash amounts to 12％(by mass)and cement 8％(by mass)respectivly in raw clay material for making wal1．