轻集料混凝土的抗硫酸盐侵蚀性能研究  

Study on sulfate resistance of lightweight aggregate concrete

作　　者：田耀刚[1] 胡曙光[1] 丁庆军[1] 王发洲[1] 王晓[2] 

机构地区：[1]武汉理工大学材料学院,湖北武汉430070 [2]建筑材料工业技术情报研究所,北京100024

出　　处：《新型建筑材料》2006年第5期61-63,共3页New Building Materials

基　　金：国家"863"计划项目(2002AA335080)

摘　　要：研究粉煤灰和硅灰对轻集料混凝土的抗硫酸盐侵蚀性能及内部孔结构的影响。结果表明,与普通混凝土相比,轻集料混凝土具有更优良的抗硫酸盐侵蚀性能;掺加粉煤灰或硅灰能优化混凝土的内部孔隙结构,大大提高轻集料混凝土的抗硫酸盐侵蚀性能;并探讨硫酸盐侵蚀溶液对轻集料混凝土的作用机理。The effect of fly ash and silicon fume on the sulfate resistance and inner pore distribution of lightweight aggregate concrete is investigated.Test results indicate that, compared with normal concrete,the sulfate resistance of lightweight aggregate concrete is better,admixed mineral admixtures can increase the sulfate resistance and optimize the inner pore distribution of lightweight aggregate concrete remarkably.The mechanism of high strength lightweight aggregate concrete to resist the attack of sulfate liquor is discussed in the paper.

关 键 词：高强轻集料混凝土 轻集料 孔结构 硫酸盐侵蚀 

分 类 号：TU528.2[建筑科学—建筑技术科学] TQ175.1[化学工程—硅酸盐工业]