水泥浆废水对MgO激发矿渣胶凝材料水化特性的影响  

Effect of cement slurry wastewater on hydration characteristics of MgO activated slag cementitious materials

作　　者：陶良敬 荆喆 谭园园 TAO Liangjing;JING Zhe;TAN Yuanyuan(Anhui Construction&Building Materials Technology Group Co.,Ltd.,Hefei 230000,China)

机构地区：[1]安徽建工建材科技集团有限公司,安徽合肥230000

出　　处：《混凝土与水泥制品》2024年第1期100-103,共4页China Concrete and Cement Products

基　　金：安徽省科技重大专项项目(202003a07020023)。

摘　　要：研究了水泥浆废水(以下简称CWw)等质量替代0、20.0%、25.0%、33.3%、50.0%的水对MgO激发矿渣胶凝材料(以下简称WAAS)水化特性的影响,并测试了其抗压强度和孔结构。结果表明:掺入CWw有效促进了WAAS的水化进程,且CWw掺量越大,WAAS的主要水化放热峰越显著,热失重量越大,水化产物生成量越多;随着CWw掺量的增加,WAAS的抗压强度先增大后减小,最佳掺量为33.3%;WAAS的累计孔隙率随着CWw掺量的增加而减小,微观结构更密实。The effects of replacing 0,20.0%,25.0%,33.3%and 50.0%of water with cement slurry wastewater(CWw)on the hydration characteristics of MgO activated slag cementitious materials(WAAS)were studied,and the compressive strength and pore structure were tested.The results show that the addition of CWw effectively promotes the hydration process of WAAS,and the larger the CWw content,the more significant the main hydration heat release peak of WAAS,the greater the heat loss weight,and the more hydration products are generated.With the increase of CWw content,the compressive strength of WAAS first increases and then decreases,and the optimal content is 33.3%.The cumulative porosity of WAAS decreases with the increase of CWw content,resulting in a denser microstructure.

关 键 词：水泥浆废水 MgO激发剂 矿渣 水化特性 抗压强度 孔结构 

分 类 号：TU528.01[建筑科学—建筑技术科学]