水泥-蔗渣灰-陶瓷粉三元胶凝材料体系早期水化研究  

Study on Early Hydration of Cement-Bagasse Ash-Ceramic Powder Cementitious Material System

作　　者：王晶[1] 杨玉柱 黄维蓉[3] WANG Jing;YANG Yuzhu;HUANG Weirong(Guangxi Communications Vocational and Technical College,Nanning 530023,China;School of Civil Engineering and Architecture,Guangxi University,Nanning 530004,China;Joint National Engineering Laboratory of Traffic Civil Engineering Materials,Chongqing Jiaotong University,Chongqing 400074,China)

机构地区：[1]广西交通职业技术学院,南宁530023 [2]广西大学土木建筑工程学院,南宁530004 [3]重庆交通大学交通土建工程材料国家地方联合工程实验室,重庆400074

出　　处：《三峡大学学报（自然科学版）》2025年第1期73-80,共8页Journal of China Three Gorges University：Natural Sciences

基　　金：广西教育厅高校中青年教师科研基础能力提升项目(2024KY1172);教育部产学合作协同育人项目(220603444282305)。

摘　　要：为探究工业固废蔗渣灰、陶瓷粉作为辅助胶凝材料在水泥基材料中的适用性,本文通过单纯型重心设计方法对水泥-蔗渣灰-陶瓷粉三元胶凝体系进行混料设计,并通过凝结时间、水化热与氢核磁共振探究其早期水化性能.研究表明:蔗渣灰与陶瓷粉均会延长水泥浆体的凝结时间,陶瓷粉的延缓幅度更大;水泥浆体水化放热峰会随着蔗渣灰掺量的增加而后移,随陶瓷粉掺量的增加而略微向前移,且蔗渣灰与陶瓷粉的掺入都会使浆体水化放热降低,72h水化程度也会降低;蔗渣灰与陶瓷粉的掺入会增加氢核磁共振信号强度,其中水泥-蔗渣灰组合的信号强度更高.水泥-蔗渣灰-陶瓷粉有较好的协同作用,三元体系可以制备凝结时间符合规范要求、水化热较低的胶凝材料,试验成果为工业固废的绿色应用以及低热混凝土的制备提供参考.To explore the applicability of industrial waste materials such as bagasse ash and ceramic powder as supplementary cementitious materials in cement-based materials,this paper uses a simplex centroid design method to design the mix for the cement-bagasse ash-ceramic powder ternary cementitious system.The early hydration performance through setting time,hydration heat,and proton nuclear magnetic resonance is studied.The results show that both bagasse ash and ceramic powder extend the setting time of cement paste,with ceramic powder having a greater delaying effect.The hydration heat peak of cement paste shifts later with the increase of bagasse ash content,and slightly earlier with the increase of ceramic powder content.The incorporation of both bagasse ash and ceramic powder reduces the hydration heat and the degree of hydration at 72 h.The incorporation of bagasse ash and ceramic powder increases the proton NMR signal intensity,with the cement-bagasse ash combination showing a higher signal intensity.The cement-bagasse ash-ceramic powder system has good synergistic effects,and the ternary system can produce cementitious materials with setting time meeting specifications,and lower hydration heat.The experimental results provide a reference for the green application of industrial waste and the preparation of low-heat concrete.

关 键 词：水泥 蔗渣灰 陶瓷粉 早期水化 氢核磁共振 水化程度 

分 类 号：TU528[建筑科学—建筑技术科学]