硅灰及锂盐对碱集料反应抑制效果的研究  

Study on Effect of Silica Fume and Lithium Salt on Restraining Alkali-Aggregate Reaction

作　　者：于洋[1] 李国忠[1] 

机构地区：[1]济南大学材料科学与工程学院,山东济南250022

出　　处：《建筑材料学报》2008年第4期475-480,共6页Journal of Building Materials

基　　金：山东省济南铁路局科技计划资助项目(G0502)

摘　　要：利用砂浆棒快速法考察掺入外加剂对砂浆棒膨胀率的影响,研究了向水泥砂浆中添加硅灰和锂盐对碱集料反应(AAR)的抑制效果.结果表明,适量掺入硅灰和锂盐可以较好地抑制由碱集料反应所造成的试样膨胀.The effect of admixtures on expansion rate of mortar rod was studied by the fast mortar rod method. The effect of filling silica fume and lithium salt in mortar rod on restraining alkaliaggregate reaction was also studied. The result indicates that mixing right amount silica fume and the lithium salt into mortar may suppress the sample＇s expansion caused by alkali-aggregate reaction.

关 键 词：碱集料反应 膨胀率 外加剂 

分 类 号：TU528.01[建筑科学—建筑技术科学]