矿热炉渣制备干混砂浆的试验研究  

Research on the application of nickel ore smelting furnace slag in dry-mix mortar

作　　者：陈平[1,2] 邹小平[1,2] 刘荣进[1,2] 韦家崭[1,2] 赵艳荣[1,2] 姜晗[1,2] 

机构地区：[1]桂林理工大学材料科学与工程学院,广西桂林541004 [2]桂林理工大学有色金属及材料加工新技术教育部重点实验室,广西桂林541004

出　　处：《混凝土》2014年第5期117-120,共4页Concrete

基　　金：广西科技攻关项目(桂科攻12118014-3D);广西研究生教育创新计划资助项目(YCSZ2012079)

摘　　要：研究了矿热炉渣的化学成分及矿物组成,并对粉磨性能、活性指数进行了检测;为了提高矿热炉渣的综合利用率,使用一部分矿热炉渣粉替代水泥,一部分矿热炉渣作为砂,替代河沙配制干混砂浆,研究矿热炉渣砂按不同掺量等质量替代河沙对砂浆工作性能和力学性能的影响,并对胶凝材料水化产物的矿物组成及微观结构进行了分析。结果表明:当矿热炉渣砂替代河沙的掺量为60%时,所制备的矿热炉渣干混砂浆强度最高,均达到M20等级砂浆的强度标准,但是砂浆的工作性能较差,易泌水,因此需要掺加一定量的保水剂,改善工作性能。Studies the chemical composition and mineral composition of Nickel Ore Smelting Furnace Slag （NOSFS）,The grinding performance and activity index were analyzed.In order to improve the comprehensive utilization of NOSFS, Using part of NOSFS powder instead of cement, and part of NOSFS as sand instead of river sand to prepare dry-mix mortar.The influence of NOSFS sand in different proportion instead of river sand in the same mass, on working performance and mechanical property of dry-mix mortar was studied.And the mineral composition and microstructure of hydration products of cementing materials was analyzed.The test results showed that the best proportion of NOSFS sand is 60% ,NOSFS dry-mix mortar can achieve M20 mortar strength standard grade,but the working performance of mortar is poor, bleeding easily, should adding a certain amount of water retention agent.

关 键 词：矿热炉渣 干混砂浆 水化产物 

分 类 号：TU528.041[建筑科学—建筑技术科学]