Mg^(2+)离子含量对低温下生成碳硫硅酸钙的影响  

Influence of Different Mg^(2+) Ions Content on Taumasite Generation Process Research Under Low Temperature

作　　者：马保国[1] 付浩兵[1] 王迎斌[1] 田振[1] 

机构地区：[1]武汉理工大学硅酸盐建筑材料国家重点实验室,武汉430070

出　　处：《武汉理工大学学报》2014年第6期26-29,35,共5页Journal of Wuhan University of Technology

基　　金：国家自然科学基金(51178363)

摘　　要：研究了不同浓度含量Mg2+离子在5℃低温下对碳硫硅酸钙形成机理的影响,碳硫硅酸钙(Taumasite)是硫酸盐侵蚀的主要腐蚀产物。Taumasite的制备方法采用化学试剂直接合成,在此过程中引入不同浓度的Mg2+离子,放置合成样于5℃低温条件下,利用XRD、SEM、FTIR的分析方法,分别于3个月、6个月取样观察Taumasite生成量。结果表明:在5℃低温条件下,随着Mg2+离子浓度升高,生成Taumasite的量呈增大趋势。The thaumasite formation mechanism affected by different Mgz＋ ions concentrations at 5 ℃ was studied. Thaumasite was prepared by using the chemical synthesis method. The different Mg2＋ ions concentrations were intro duced in the process, and the synthesized samples were placed under 5 ℃ environment. After three months and six months exposure, the final samples were analyzed using XRD, SEM, FTIR methods. The experimental results show that with the concentration of Mg2＋ ions increasing, the amount of thaumasite shows an increase trend at 5 ℃.

关 键 词：浓度 碳硫硅酸钙 Mg2+ 温度 

分 类 号：TU528[建筑科学—建筑技术科学]