耐高温耐腐蚀水泥浆材料优选试验与性能评价  

Optimization Test and Performance Evaluation of the High Temperature and Corrosion Resistant Cement Materials

作　　者：杜嘉培 步玉环 郭胜来 

机构地区：[1]中国石油大学石油工程学院,青岛266580

出　　处：《硅酸盐通报》2015年第11期3292-3297,共6页Bulletin of the Chinese Ceramic Society

基　　金：973计划(2015CB251202);教育部长江学者创新团队项目(IRT1086)

摘　　要：本文以传统G级水泥为原料,以偏高岭土和硅粉为外掺料,通过加入一定的硫酸钠激发剂和OAI缓凝剂,优选出了一种耐高温耐腐蚀的水泥浆体系。系统的研究了偏高岭土、硅粉、硫酸钠以及缓凝剂等组分含量的变化对水泥浆体系力学性能的影响,并对水泥浆体系的综合性能进行了评价。研究结果表明：在传统G级水泥中加入15%~20%的偏高岭土、30%~35%的硅粉、0.1%的硫酸钠激发剂以及1.5%的OAI缓凝剂,会增强水泥石的耐高温与耐腐蚀性能,并使此种水泥浆体系具有了良好的力学性能和适应大温差的能力。In this paper, taking the ordinary class G cement as the raw material, taking metakaolin and silica fume as admixture, using sodium sulfate as metakaolin activator and OAI composites as retarder. By measuring the compressive strength and by changing the content of each component, the effects on the mechanical properties has been systemically discussed. Besides, the comprehensive performance of this cement system has been studied. The results show that 15%-20% of metakaolin, 30%-35% of silica fume in the ordinary class G cement and added 0. 1% sodium sulfate and 1.5% OAI retarder will improve the cement properties of high temperature and corrosion resistance. And this cement system has good mechanical properties and temperature vibration resistance.

关 键 词：高温 腐蚀 大温差 偏高岭土 硅粉 

分 类 号：TQ172[化学工程—水泥工业]