摘要
复合型软土固化剂中各膨胀性组分之间的比例,以及膨胀性组分总体与胶结性组分之间的比例对固化剂的性能有很大影响。以水泥作为胶结性组分、以硫铝酸盐水泥与石膏或高铝水泥与石膏作为膨胀性组分构成复合型软土固化剂固化软土,通过无侧限抗压强度试验、XRD试验,确定了各膨胀性组分之间的最佳比例和膨胀性组分总体与胶结性组分之间的最佳比例,并提出了确定各比例的方法。结果表明:各膨胀性组分之间的比例应符合各组分能充分反应全部生成膨胀性水化物;膨胀组分总体与胶结组分之间的比例宜根据土样孔隙率及其最大填充程度确定。文中结论对于高效软土固化剂设计具有重要指导意义。
The compound stabilizer performance is impacted by the ratio of expansible component and the quantity ratio of total expansible component to cementations component.In this paper firstly cement is used as cementitious component,and sulphoaluminate cement（or alumina cement） and gypsum is used as expansible component.Then the optimum ratio of expansible component and the optimum quantity ratio of total expansible component to cementitious component are determined by unconfined compressive strength test and XRD test,and the design method of ratio is proposed.The results show that：the ratio of expansible component should guarantee every component react fully and generate expansible hydrates totally;the optimum quantity ratio of total expansible component to cementitious component should be designed according to the porosity of soil sample and the maximum porosity filling degree.These conclusions have important guidance significance for effective soft soil stabilizer design.
出处
《中国港湾建设》
北大核心
2011年第2期27-30,71,共5页
China Harbour Engineering
基金
国家自然科学基金青年基金资助项目(51008007)
河北省交通运输厅重点科技计划项目(Y-090117)
北京市属高等学校人才强教计划资助项目
关键词
膨胀性组分
最佳配比
土样孔隙率
优化方法
复合型软土固化剂
expansible component
optimum ratio
porosity of soil sample
optimization method
compound soft soil stabilizer
