再生微粉-电石渣制备硅酸盐水泥熟料及其水化性能研究  

Study on the Preparation of Clinker from Recycled Concrete Powder and Calcium Carbide Slag and Its Hydration Properties

作　　者：侯圣举 李树国 何超 陈扬[1] 但建明[3] 周阳[4] 李相国[1,3] 吕阳 HOU Shengju;LI Shuguo;HE Chao;CHEN Yang;DAN Jianming;ZHOU Yang;LI Xiangguo;LYU Yang(State Key Laboratory of Silicate Materials for Architectures,Wuhan University of Technology,Wuhan 430070,China;Huaxin Environment Engineering Co.,Ltd.,Wuhan 430075,China;State Key Laboratory Incubation Base for Green Processing of Chemical Engineering,School of Chemistry and Chemical Engineering,Shihezi University,Shihezi 832003,Xinjiang,China;College of Water Conservancy&Architectural Engineering,Shihezi University,Shihezi 832000,Xinjiang,China)

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 [2]华新环境工程有限公司,武汉430075 [3]石河子大学化学化工学院,化工绿色过程省部共建国家重点实验室培育基地,新疆石河子832003 [4]石河子大学水利建筑工程学院,新疆石河子832000

出　　处：《材料导报》2024年第22期44-49,共6页Materials Reports

基　　金：兵团重点科技攻关计划(2023AB013-03);八师石河子市科技计划项目(2022GY01)。

摘　　要：以再生微粉(RCP)和电石渣(CCS)等典型固废作为原材料,开展了固废基低碳水泥熟料制备技术研究。试验分析了煅烧温度(1300℃、1350℃、1400℃和1450℃)以及CCS和RCP含量对熟料煅烧和矿相组成的影响,并研究了1400℃下制备的水泥熟料的水化特性与力学性能。结果表明,RCP的加入可以降低水泥熟料的烧成温度,适量的RCP(60%)作为水泥生料掺入会提高熟料的力学性能,有利于水泥的早期水化。这些工作有助于推进建筑垃圾的资源化利用,为水泥生产中钙硅质原料提供了替代方案。This research focuses on low-carbon cement preparation technology by using typical solid wastes such as recycled concrete powder(RCP)and calcium calcium carbide slag(CCS)as raw materials.The effects of sintering temperatures(1300℃,1350℃,1400℃and 1450℃)and the contents of CCS and RCP on clinker calcination and mineral phase composition are analyzed,meanwhile the hydration characteristics and mechanical properties of solid waste-based cement at 1400℃are studied.Results demonstrated that an appropriate amount of RCP could lower the optimal clinker sintering temperature,enhancing both the mechanical properties and the cement hydration process.Specifically,when the RCP content reached 60wt%,the solid waste-based cement exhibited superior mechanical properties,achieving a 28-day compressive strength of 110.5 MPa.This investigation contributes to the advancement of resource utilization for RCP and offers guidance for substituting calcium-silica raw materials with solid waste in cement production.

关 键 词：再生微粉 电石渣 硅酸盐水泥 煅烧温度 水化特性 

分 类 号：TQ172[化学工程—水泥工业]