黏土-水泥复合材料的制备和力学性能  

Preparation and Mechanical Properties Analysis of Clay-Cement Composite

作　　者：彭霞锋[1] 宋顺成[2] PENG Xia-feng;SONG Shun-cheng(Guangdong Polytechnic of Science and Technology,Guangzhou 519090,China;Southwest Jiaotong University,Chengdu 610031,China)

机构地区：[1]广东科学技术职业学院,广州519090 [2]西南交通大学,成都610031

出　　处：《科学技术与工程》2020年第25期10433-10436,共4页Science Technology and Engineering

基　　金：广东省高等职业教育“创新强校工程”。

摘　　要：采用含有石英和长石成分的黏土,制备了黏土和水泥(掺量为5wt%、7wt%、9wt%)的新型复合材料,研究了其阿太堡界限、击实密度和最佳含水量、无侧限抗压强度和水渗透系数。结果表明,含5wt%水泥的复合材料被认为最适合某些建筑材料的应用,塑性指数为10.5%,最大干密度2.17 g/cm^3,无侧限抗压强度为0.74 MPa,渗透系数低至7.4×10^-11 m/s。该复合材料可应用于建筑砖块和路基。Hard chlorite clay containing illite and interbedded illite was applied to form hard chlorite clay-cement composite(5wt%,7wt%,9wt%).The Atterberg limits,modified proctor compressive dry density,and optimum water content,unconfined compressive strength(UCS),and water penetration rate were studied.Results show that the composite with 5%cement was the most suitable for construction material application.The plastic index was 10.5%,maximum dry density was 2.17 g/m^3,UCS was 0.74 MPa,and penetration rate was as low as 7.4×10^-11 m/s.The composite material can be used in bricks and subgrade.

关 键 词：黏土 水泥复合材料 界限含水量 物理性能 力学性能 

分 类 号：TU528[建筑科学—建筑技术科学]