硫酸盐对水泥基材料微观结构的影响  

Effect of sulfate on the microstructure of cementitious materials

作　　者：林晖[1] 侯捷[1] 卢小琳[1] 高培伟[1] 

机构地区：[1]南京航空航天大学,江苏南京210016

出　　处：《混凝土》2005年第11期6-9,共4页Concrete

基　　金：国家自然科学基金(50278031);南航基金联合资助

摘　　要：本文通过对水泥基材料的细观结构的分析发现:在水泥基材料中添加适宜种类和掺量的添加剂,可以增加水化产物;水化产物填充了浆体的毛细孔,未水化的填充了集料与浆体的间隙,提高了水泥基材料的密实度,改善了界面结构,提高了抗硫酸盐侵蚀能力。本文提出了三种主要侵蚀的方式并建立了理论模型。The microstructure of cementitioos materials （CCM） is studied. Results show that the microstructures of cementitious materials are improved by hydration and un-hydrated products in the presence of additive agent, and the voids reduced. Thus the density, impermeability and sulfate resistance may be improved slightly. At same time, the mechanism and model of sulfate attack in cementitioos materials with additive agent are proposed by investigating microstructure with optical micrograph and SEM-EDS

关 键 词：硫酸盐侵蚀 水泥基材料 细观结构 

分 类 号：TU528.01[建筑科学—建筑技术科学]