透辉石的火山灰反应活性及水化产物
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- 论文作者：崔孝炜 ; 倪文 ; 耿碧瑶 ; 王佳佳 ; 任超
- 年：2016
- 作者机构：北京科技大学土木与环境工程学院;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：铁辉石 ; 火山灰反应活性 ; C-S-H凝胶 ; 钙矾石
- 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：TD926.4;TQ172.44
- 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：6
- 文件大小：1750k
- 原文格式：O
- 会议级别：全国
摘要
以透辉石、脱硫石膏和氢氧化钙为原料,研究了磨细透辉石的火山灰反应活性,并利用XRD、SEM对净浆试块的水化产物进行分析。结果表明,磨细的透辉石净浆试块抗压强度在3d、7d和28d龄期时分别为9.83MPa、12.79MPa和18.87MPa,显示出磨细的透辉石具有火山灰活性,其水化反应产物主要是C-S-H凝胶。随着养护龄期的增加,仅有少量石膏参与反应,Ca(OH)_2会被大量消耗,水化产物逐渐增多。
引文
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[2]Xuan Qingqing,et al.Lead-Zinc tailings applied in the production of moderate heat portland cement[J].Journal of Materials Science and Engineering,2009,27(2):266-270.
[3]M.Y.A.Moallah,T.R.Hess,Y.-N.Tsai,D.L.Cocke,FTIR and XPS investigation of the effects of carbonation on the solidification/stabilization of cement based system-Portland Type V with zinc[J].Cement and Concrete Research,1993(23):773-784.
[4]Kutti T,MalinowSki R,Srebnik M Investigation of mechenical properties and structure of alkaline activated blast-furnace slag mortars[J].Silicon Industry,1983(9):175
[5]Zhou Yanxi.Research on using lead-zinc tailings as an ingredient of cement[D].Changsha:Central South University,2013.
[6]Zhu Jianping,Gong Chenchen,Lan Xianghui,et al.Study on production of high tricalcium silicate Portland cement clinker by lead-zinc tailing and shale[J].Bulletin of the Chinese Ceramic Society,2006,25(5):10-16.
[7]Wu Zhenqing,Zhou Jinjun,Tang Shengfei,et al.Study on cement production using lead-zinc tailings instead of clay and pyrite for proportioningfJ].Cement Guide for New Epoch,2006(3):31-32.
[8]Geng Biyao,Ni Wen,Wang Jiajia,et al.An initiative investigation of the pozzolanic reaction of ground lead-zinc ore tailings[J],Inernational Journal of Earth Sciences and Engineering.2015,08(03):1271-1278.
[9]S.Gomes,M.Francois,C.Pellissier.Characterization and comparative study of coal combustion residues from a primary and additional flue gas secondary desulfurization process[J],Cement and Concrete Research,1998,28(11):1605-1619.
[10]Bensted J,Barnes P.Structure and performance of cements[C],2nd edition.New York:Spon Press,2002.