掺合料对阿利特-硫铝酸钡钙水泥砂浆力学性能的影响  

Influence of Admixture on the Mechanical Property of Alite-Calcium Barium Sulphoaluminate Cement Mortar

作　　者：刘鹏[1] 周宗辉[1] 芦令超[1] 程新[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：《济南大学学报（自然科学版）》2008年第3期221-225,共5页Journal of University of Jinan(Science and Technology)

基　　金：济南市科技攻关计划(051085)

摘　　要：研究不同掺量的矿渣、粉煤灰和沸石粉对阿利特-硫铝酸钡钙水泥砂浆强度的影响规律,并对其反应机理进行探讨。利用SEM和全自动孔隙率分析仪,对砂浆水化产物的微观结构及其致密度进行分析。结果表明:添加掺合料会降低水泥砂浆的早期强度,但随着时间的延长,添加适量掺合料可以提高结构的致密性,改善界面结构,提高后期强度。矿渣、粉煤灰和沸石粉的最佳掺量分别为w(矿渣)=30%、w(粉煤灰)=20%和w(沸石粉)=10%,且添加矿渣对提高强度的效果最显著。The influence of different contents of slag, fly ash and zeolite powers on the strength of alite - calcium barium sulphoaluminate cement mortar is investigated, and the reaction mechanism is discussed. In the experiments, we discussed the hydrate and micro - structure by SEM and porosity analysis. It is indicated that admixtures can reduce the early strength of the cement mortar and increase its later strength, and it also improves the interface of alite - calcium barium sulphoaluminate cement mortar. When the cement mortar contains w =30% of slag,w = 10% of zeolite power,w =20% of fly ash, the effect on the strength is the best, especially adding slag.

关 键 词：阿利特-硫铝酸钡钙水泥 掺合料 强度 

分 类 号：TU528[建筑科学—建筑技术科学]