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中国公路学报
CHINA JOURNAL OF HIGHWAY AND TRANSPORT
2006 Vol.19 No.5 P.12-17

数字化期刊

水泥土添加剂的室内试验

叶观宝  陈望春  徐超  李束 

摘 要:通过分别对加有SN-Ⅱ高效减水剂、Al(OH)3和CaCl2早强剂以及不加添加剂的水泥土进行7、28、90 d龄期的微观结构分析试验,结合无侧限抗压强度试验,研究水泥土添加剂的作用机理.结果表明:添加剂SN-Ⅱ的宏观力学性质表现为水泥土28 d强度有明显提高,添加剂Al(OH)3和CaCl2的宏观力学性质表现为水泥土7、28、90 d强度均有明显提高.微观结构分析表明:添加剂SN-Ⅱ不参与水泥土的水化反应,对水泥土的影响主要体现在改变水化速度和水化产物空间结构上;添加剂Al(OH)3和CaCl2既参与水泥土水化反应,又可改变其水化速度和空间结构.
关键词:道路工程;水泥土添加剂;试验研究;无侧限抗压强度;能谱分析;X射线衍射
分类号:U416.03  文献标识码:A

文章编号:1001-7372(2006)05-0012-06

Test on Additive of Cement-Soil in Laboratory

YE Guan-bao  CHEN Wang-chun  XU Chao  LI Shu 

基金项目:上海市重点学科建设项目(2001-44);江苏省交通厅科研项目(03Y023)
作者简介:叶观宝(1964-),男,安徽歙县人,同济大学教授,博士生导师,工学博士,E-mail:yeguanbao@vip.citiz.net.
作者单位:叶观宝(同济大学,岩土工程重点实验室,上海,200092;教育部城市环境与可持续发展联合研究中心,上海,200092) 
     陈望春(中国民航机场建设集团公司,北京,100101) 
     徐超(同济大学,岩土工程重点实验室,上海,200092;教育部城市环境与可持续发展联合研究中心,上海,200092) 
     李束(同济大学,岩土工程重点实验室,上海,200092;教育部城市环境与可持续发展联合研究中心,上海,200092) 

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收稿日期:2005年10月12日

出版日期:2006年9月30日