再生砖混-矿渣基地聚合物的力学性能及干燥收缩性能研究  

Study on Mechanical Properties and Drying Shrinkage of Recycled Brick-concrete and Slag Based Geopolymer

作　　者：巫兴辉 张细和 刘鑫 Wu Xinghui;Zhang Xihe;Liu Xin(Jiangxi Honghaozhi Engineering Quality Inspection Co.Ltd.,Nanchang,Jiangxi 330001;China Power Construction Group Guiyang Survey and Design Institute Co.Ltd.,Guiyang,Guizhou 550081)

机构地区：[1]江西鸿浩志工程质量检测有限公司,江西南昌330001 [2]中国电建集团贵阳勘测设计研究院有限公司,贵州贵阳550081

出　　处：《江西建材》2024年第12期73-75,共3页

基　　金：中国电建重点科技项目《磷石膏基全固废绿色水泥制备技术研究》(项目编号:DJ-ZDXM-2023-25)

摘　　要：文中研究再生砖混-矿渣基地聚合物的力学性能和干缩规律。利用再生砖混微粉、矿渣和改性硅酸钠溶液,制备再生砖混-矿渣基地聚合物,通过SEM等微观手段,分析水化产物和微观结构。结果表明,矿渣可显著改善地聚合物的力学性能和干燥收缩性能。掺入45%的矿渣后,其抗压强度提高13.1倍,干燥收缩率降低76.32%。The paper studied the mechanical properties and drying shrinkage law of recycled brick fine powder-slag base polymer.The geopolymers with different slag contents and alkali equivalents were prepared using recycled brick fine powder,slag,and modified sodium silicate solution.The hydration products and microstructure were analyzed using microscopic techniques such as SEM.The results indicate that slag can significantly improve the mechanical properties and drying shrinkage of geopolymers.After adding 45%slag,its compressive strength increased by 13.1 times and the drying shrinkage rate decreased by 76.32%.

关 键 词：再生砖混微粉 矿渣 地聚合物 力学性能 干燥收缩性能 

分 类 号：TU528[建筑科学—建筑技术科学]