钢渣粉对全固废混凝土强度的影响
详细信息 查看官网全文
- 英文论文题名：Influence of Steel Slag Powder onStrength ofConcrete withIndustrial Solid Wastes
- 论文作者：刘轩 ; 崔孝炜 ; 倪文 ; 马旭明
- 英文论文作者：Liu Xuan ; Cui Xiaowei ; Ni Wen ; Ma Xuming ; College of Civil and Environment Engineering ; University of Science and Technology Beijing ; Beijing Key Laboratory of Resource-oriented Treatment of Industrial Pollutants ; Shaanxi Key Laboratory of Comprehensive Utilization of Tailings Resources ; Shangluo University
- 年：2016
- 作者机构：北京科技大学土木与环境工程学院;工业典型污染物资源化处理北京市重点实验室;商洛学院陕西省尾矿资源综合利用重点实验室;
- 论文关键词：钢渣矿渣全固废混凝土水化机理
- 英文论文关键词：Steel slag ; Blast furnace slag ; Concrete with industrial solid wastes ; Hydration
- 会议召开时间：2016-08-28
- 会议录名称：第七届尾矿与冶金渣综合利用技术研讨会暨招远市循环经济项目招商对接会论文集
- 语种：中文
- 分类号：TU528
- 学会代码：EUGQ
- 会议名称：第七届尾矿与冶金渣综合利用技术研讨会暨招远市循环经济项目招商对接会
- 会议地点：中国山东招远
- 主办单位：中国循环经济协会、尾矿综合利用产业技术创新战略联盟、招远市人民政府
- 学会名称：中国硅酸盐学会
- 页数：8
- 文件大小：1119k
- 原文格式：O
- 会议级别：全国
摘要
研究了钢渣粉的比表面积和掺量对全固废混凝土强度的影响,并利用XRD和SEM分析钢渣-矿渣-脱硫石膏体系胶凝材料的水化产物和水化机理。结果表明:随着钢渣粉比表面积的增加,混凝土的3d、7d、28d强度均相应升高;随着钢渣粉掺量的增加,混凝土的3d和7d强度降低,28d强度先降低后升高。钢渣、矿渣、脱硫石膏相互作用,促进钙矾石和C-S-H凝胶的形成和生长;钙矾石和C-S-H凝胶相互交织,形成致密结构有利于全固废混凝土的强度发展。
The influence of specific surface area and proportion of steel slag powder on the strength of the concrete with industrial solid wastes was studied.The hydration mechanism ofcementitious materialsprepared by steel slag,blast furnace slag and desulfurization gypsumwas analyzed by XRDandSEM.The results showed thatthe strength of concrete all increasedwiththe increasing of specific surface area of steel slag powderafter curing for 3d,7d and 28 d,Withthe increasing of proportion of steel slagpowder,the strength of concretedecreaseafter curing for 3d and 7d,butdecreased first and then increased after curing for28 d.Steel slag,slag and desulfurization gypsuminteract with each other,promoting the formation and growth of ettringiteand C-S-H;ettringiteand C-S-H gel intertwined and form a compact structure,which can increase the strength of the concrete with industrial solid wastes.
The influence of specific surface area and proportion of steel slag powder on the strength of the concrete with industrial solid wastes was studied.The hydration mechanism ofcementitious materialsprepared by steel slag,blast furnace slag and desulfurization gypsumwas analyzed by XRDandSEM.The results showed thatthe strength of concrete all increasedwiththe increasing of specific surface area of steel slag powderafter curing for 3d,7d and 28 d,Withthe increasing of proportion of steel slagpowder,the strength of concretedecreaseafter curing for 3d and 7d,butdecreased first and then increased after curing for28 d.Steel slag,slag and desulfurization gypsuminteract with each other,promoting the formation and growth of ettringiteand C-S-H;ettringiteand C-S-H gel intertwined and form a compact structure,which can increase the strength of the concrete with industrial solid wastes.
引文
[1]国家发展和改革委员会.中国资源综合利用年度报告(2014)[J].再生资源与循环经济,2014,7(10).National Development and Reform Commission.China Resources Comprehensive Utilization Annual Report(2014)[J].Recyclable Resources and Circular Economy,2014,7(10).
[2]侯贵华,李伟峰,郭伟,等.转炉钢渣的显微形貌及矿物相[J].硅酸盐学报,2008,36(4):436-443.Hou Guihua,Li Weifeng,Guo Wei,et al.Microstructure and mineral phase of converter slag[J].Journal of the Chinese Ceramic Society,2008,36(4):436-443.
[3]Tossavainen M,Engstrom F,Q.Yang,et al.Characteristics of steel slag under different cooling conditions[J].Waste Manage,2007,27(10):1335-1344.
[4]王琼.钢渣活性激发技术研究现状[J].粉煤灰,2014,(6):15-17.Wang Qiong.The state-of-the-arts of activating technology of steel slag reactivity[J].Coal Ash,2014,(6):15-17.
[6]王强,黎梦圆,石梦晓.水泥-钢渣-矿渣复合胶凝材料的水化特性[J].硅酸盐学报,2014(5):629-634Wang Qiang,Li Mengyuan,Shi Mengxiao.Hydration properties of cement-steel slag-ground granulated blast furnace slag complex binder[J].Journal of the Chinese Ceramic Society,2014(5):629-634.
[7]吴辉,倪文,崔孝炜,等.利用热闷钢渣制备低收缩铁路轨枕混凝土[J].材料热处理学报,2014(4):7-12Wu Hui,Ni Wen,Cui Xiaowei,et al.Preparation of concrete sleeper using hot steaming steel slag with low autogenous shrinkage[J].Transactions of Materials and Heat Treatment,2014(4):7-12.
[2]侯贵华,李伟峰,郭伟,等.转炉钢渣的显微形貌及矿物相[J].硅酸盐学报,2008,36(4):436-443.Hou Guihua,Li Weifeng,Guo Wei,et al.Microstructure and mineral phase of converter slag[J].Journal of the Chinese Ceramic Society,2008,36(4):436-443.
[3]Tossavainen M,Engstrom F,Q.Yang,et al.Characteristics of steel slag under different cooling conditions[J].Waste Manage,2007,27(10):1335-1344.
[4]王琼.钢渣活性激发技术研究现状[J].粉煤灰,2014,(6):15-17.Wang Qiong.The state-of-the-arts of activating technology of steel slag reactivity[J].Coal Ash,2014,(6):15-17.
[6]王强,黎梦圆,石梦晓.水泥-钢渣-矿渣复合胶凝材料的水化特性[J].硅酸盐学报,2014(5):629-634Wang Qiang,Li Mengyuan,Shi Mengxiao.Hydration properties of cement-steel slag-ground granulated blast furnace slag complex binder[J].Journal of the Chinese Ceramic Society,2014(5):629-634.
[7]吴辉,倪文,崔孝炜,等.利用热闷钢渣制备低收缩铁路轨枕混凝土[J].材料热处理学报,2014(4):7-12Wu Hui,Ni Wen,Cui Xiaowei,et al.Preparation of concrete sleeper using hot steaming steel slag with low autogenous shrinkage[J].Transactions of Materials and Heat Treatment,2014(4):7-12.