掺合料对Alite-CBA水泥砂浆抗Cl^-渗透性能的影响  

Influence of admixtures on the chloride ion anti-permeability of alite-calcium barium sulphoaluminate cement mortar

作　　者：彭宝利[1] 刘鹏[2] 周宗辉[2] 程新[2] 

机构地区：[1]唐山学院,河北唐山063020 [2]济南大学材料科学与工程学院,山东济南250022

出　　处：《混凝土》2007年第6期50-53,共4页Concrete

摘　　要：研究了不同矿物掺合料对Alite-CBA水泥砂浆抗Cl-渗透性能的影响。采用XRD和SEM对养护28d砂浆的相组成和微观结构进行了分析和观察,用PoreMaster-60压汞仪对其孔结构进行了分析。结果表明,在Alite-CBA水泥浆体中,加入掺合料可以提高硬化砂浆结构的致密性,进而提高其抗Cl-渗透能力。矿渣、粉煤灰和沸石粉对抗Cl-渗透性能的影响程度为:矿渣>沸石粉>粉煤灰。The influences of slag, fly ash, and zeolite powders on the anti-permeability to the chloride ions of cement mortars were investigated in detail.In the experiments,the composition and morphology of the hydrates in the cement mortars cured for 28 days were analysised by XRD and SEM, and the pore structure of the mortars was measured by the mercury intrusion porosimetry tests.The results show that the anti-permeability to chloride ions of the cement mortars could be obviously improved by adding the admixtures.The effects of improving anti-permeability to chloride ions are that the slag is the best, zeolite powder is better, and fly ash is the worst.

关 键 词：Alite-CBAS水泥 掺合料 抗渗透性能 砂浆 Cl^- 

分 类 号：TU528.041[建筑科学—建筑技术科学]