掺合料对硫铝酸盐水泥抗Cl^-渗透性能的影响  

Influence of additive materials on anti-chloride-permeability of sulphoaluminate cement

作　　者：张云飞[1] 张德成[1] 杜纪锋[1] 程新[1] 

机构地区：[1]济南大学材料学院,山东济南250022

出　　处：《水泥》2008年第1期7-9,共3页Cement

基　　金：山东省博士基金03BS060

摘　　要：研究了矿渣、粉煤灰和沸石粉单掺及复掺时对硫铝酸盐水泥砂浆Cl-渗透性的影响,采用SEM、孔结构等方法分析了不同龄期的净浆水化产物。结果表明,在硫铝酸盐水泥浆体中,加入掺合料可以改善结构致密性,提高抗Cl-渗透能力,3种掺合料作用效果为:矿渣>粉煤灰>沸石粉;复掺时效果更好,矿渣与粉煤灰复掺>矿渣与沸石粉复掺>沸石粉与粉煤灰复掺。The chloride permeability of sulphoaluminate cement paste could be changed by the addition of GGBFS, fly ash, zeolite either respectively or compositely. Their hydration products had been studied by means of SEM and pore structure at different curing age. The results showed that the addition of blending materials could improve the compactibility of cement paste structure, then increased anti-ehloride permeability. The effect of slag was best and zeolite was worst;It could get a better effect when the blending materials were composited, and the composite admixture of slag and fly ash was the most, that of zeolite and fly ash was the least.

关 键 词：矿渣 粉煤灰 沸石粉 硫铝酸盐水泥 Cl^-渗透性 

分 类 号：TQ172.746[化学工程—水泥工业]