用铁尾矿和废石制备蒸压灰砂砖的研究  

Preparation of Autoclaved Sand-lime Bricks by Iron Ore Tailings and Waste Rocks

作　　者：吝晓然 王长龙[1,2,3,4] 张凯帆 霍泽坤 常宁 叶鹏飞 刘振宇 孟秀青 LIN Xiaoran;WANG Changlong;ZHANG Kaifan;HUO Zekun;CHANG Ning;YE Pengfei;LIU Zhenyu;MENG Xiuqing(School of Civil Engineering,Hebei University of Engineering,Handan,Hebei 056038,China;Shaanxi Key Laboratory of Comprehensive Utilization of Tailings Resources,Shangluo University,Shangluo,Shaanxi 726000,China;Tianjin Sunenergy Sega Environmental Science&Technology Co.,Ltd,Tianjin 300380,China;Beijing Engineering Research Center of Carbon Fibres,Beijing Bluestar Cleaning Co.,Ltd,Beijing 101318,China)

机构地区：[1]河北工程大学土木工程学院,河北邯郸市056038 [2]陕西省尾矿资源综合利用重点实验室,商洛学院,陕西商洛市726000 [3]天津舜能世嘉环保科技有限公司,天津300380 [4]北京市碳纤维工程技术研究中心,北京蓝星清洗有限公司,北京101318

出　　处：《矿业研究与开发》2019年第11期109-114,共6页Mining Research and Development

基　　金：中国博士后科学基金项目（2016M602082）;河北省自然科学基金项目（E2018402119）;河北省高等学校科学研究项目（ZD2016014,QN2016115）;陕西省尾矿资源综合利用重点实验室开放基金项目（2017SKY-WK008）;邯郸市科学技术研究与发展计划项目（1621211040-3）;江西省博士后日常经费资助项目（2016RC30）;江西省博士后科研项目（2017KY19）

摘　　要：分析了铁尾矿的成分特点,研究了铁尾矿废石蒸压灰砂砖的配合料组成和成型、蒸养工艺参数、物理力学性能。得到铁尾矿废石灰砂砖的优化配合比为:铁尾矿、废石、石灰的质量分数分别为75%、13%、10%,物理力学性能符合GB11945-1999中MU15蒸压灰砂砖的技术要求。XRD和FE-SEM分析表明:所制备的蒸压灰砂砖中新生成的主要物相是托贝莫来石、水钙铝榴石、C-S-H凝胶、石英以及来自原始铁尾矿中的残留矿物。The compositional characteristics of iron ore tailings were analyzed.Then,the mixture composition,molding,steam curing process parameters,physical and mechanical properties of autoclaved sand-lime brick prepared by iron ore tailings and waste rocks were studied.The optimal proportion of the brick was obtained as follows:iron ore tailings of 75%,waste rocks of 13% and lime of 12%,and the physical and mechanical properties of the brick could meet the technical requirements of GB11945-1999 for MU15 autoclaved sand-lime bricks.XRD and FE-SEM analysis showed that the new main phases in the brick were tobermorite,hibschite,C-S-H gels,quartz and residual minerals from iron ore tailings.

关 键 词：铁尾矿 废石 蒸压灰砂砖 托贝莫来石 

分 类 号：TU522.3[建筑科学—建筑技术科学]