掺萘系高效减水剂水泥土室内试验研究  

Experiment of Cement-stabilized Soil Mixed High Efficient Naphthalene Water Reducing Agent in Laboratory

作　　者：燕仲彧[1] 童小东[1] 周妙妙[1] 

机构地区：[1]东南大学混凝土及预应力混凝土结构教育部重点实验室,南京210096

出　　处：《地下空间与工程学报》2009年第5期920-923,共4页Chinese Journal of Underground Space and Engineering

基　　金：江苏省自然科学基金资助项目(BK2008314);建设部研究开发项目资助项目(06-K7-37);国家科技支撑计划资助项目(2006BAG04B01)

摘　　要：室内试验结果表明,在水泥浆中掺入适量的萘系高效减水剂,可提高水泥土的无侧限抗压强度。在水泥掺入比为20%、水灰比为0.6的条件下,掺有萘系高效减水剂的水泥土,其不同龄期的无侧限抗压强度比不掺添加剂的水泥土均有显著提高;在强度提高效率方面,该添加剂存在一个最佳掺入比。笔者结合强度试验和扫描电子显微镜试验对该添加剂的作用机理进行了分析,提出了本次试验中该添加剂的最佳掺入比。As was shown by laboratory test,that unconfined compressive strength of cement-stabilized soil could be enhanced,when appropriate amount of high efficient naphthalene water reducing agent is added into cement slurry.With the same cement content 20% and water cement ratio 0.6,the strength of the cement-stabilized soil added with additive improved significantly compared with the cement-stabilized soil without additive at any curing age;and indicating that there is an optimum mixture ratio of additive with strength increasing. The additive ＇ s mechanism was analyzed by strength test and scanning electron microscope test, and then an optimum mixture ratio of the additive was given.

关 键 词：水泥土 添加剂 强度 

分 类 号：TU472[建筑科学—结构工程]