| 697 | 35 | 59 |
| 下载次数 | 被引频次 | 阅读次数 |
研究了钢渣–熟石灰碳化砖的强度、干燥收缩、吸水率和安定性等特性。结果表明:钢渣–熟石灰砖在碳化后,强度可提高34倍,干燥收缩和吸水率显著降低,安定性问题得到解决。钢渣–熟石灰碳化砖的最优熟石灰/钢渣比为0.2,其质量指标满足MU20级建筑砖的要求。此外,采用X射线衍射,压汞法和热重差热分析法分析了钢渣–熟石灰碳化砖的碳化作用机理和环保效果。
Abstract：The characteristics of carbonated steel slag-slaked lime(SS-SL) brick(i.e.,strength,drying shrinkage,water absorption and soundness) were mainly investigated.The results indicate that the strength of the SS-SL brick after carbonation is increased by 3–4 times,the drying shrinkage is significantly reduced and the soundness problem is solved.The optimal slaked lime/steel slag ratio for the carbonated SS-SL brick is 0.2.The properties of the as-prepared brick can meet the requirements for MU20 grade building bricks in the Chinese standard.Furthermore,the related mechanism of the carbonated SS-SL brick and the environmental effects were analyzed.
[1]中国国家统计局.中国统计年鉴2011-主要工业产品产量[M].北京:中国统计出版社,2012:14–22.Nation Bureau of Statistics of China.Statistical Yearbook 2011-Outputof Major Industrial Products(in Chinese)[M].Beijing:China StatisticsPress,2012:14–22.
[2]Chemical Industry Vision 2020 Technology Partnership.Carbon diox-ide separation technology:R&D needs for the chemical and petro-chemical industries[EB/OL].(2007–05).http://www.chemicalvision2020.org/pdfs/CO2_Separation_Report_V2020_fin-al.pdf.
[3]LI J X,YU Q J,WEI J X,et al.Structural characteristics and hydrationkinetics of modified steel slag[J].Cem Concr Res,2011,41(3):324–329.
[4]US Department of Transportation,Federal Highway Administration.User guide lines for waste and byproduct materials in pavement con-struction,pavement publication[EB/OL].(2009–05)[1998-09].http://www.tfhrc.gov/hnr20/recycle/waste/begin.htms.
[5]HUIJGEN W J J,WITKAMP G J,COMANS R N J.Mineral CO2sequestration by steel slag carbonation[J].Environ Sci Technol,2005,39(24):9676–9682.
[6]LEKAKH S N,RAWLINS C H,ROBERTSON V L,et al.Kinetics ofaqueous leaching and carbonization of steelmaking slag[J].Met MaterTrans B,2008,39(1):125–134.
[7]BONENFANT D,KHAROUNE L,SAUVE S,et al.CO2sequestrationpotential of steel slags at ambient pressure and temperature[J].IndEng Chem Res,2008,47(20):7610–7616.
[8]KODAMA S,NISHIMOTO T,YAMAMOTO N,et al.Development ofa new pH-swing CO2mineralization process with a recyclable reactionsolution[J].Energy,2008,33(5):776–784.
[9]中国工业信息部.砖瓦工业“十二五”发展规划[J].砖瓦世界,2011(10):1–4.Ministry of Industry and Information Technology of China.Brick&Tile World(in Chinese),2011(10):1–4.
[10]国务院办公厅.国办发(1999)72号:关于推进住宅产业现代化提高住宅质量若干意见的通知[N].中华人民共和国国务院公报,1999(3):1302–1306.State Council of People’s Republic of China.Document[1999]72:Several opinions on the modernization of the housing industry and thequality of the house(in Chinese)[N].Gazette of the State Council ofthe People’s Republic of China,1999(3):1302–1306.
[11]国家经济贸易委员会.建材工业“十五”发展规划[J].建筑砌块和砌块建筑,2001(5):3–9.National Economic and Trade Commission.Building Block BlockBuilding(in Chinese),2001(5):3–9.
[12]李文东,李振申.使用水泥砖注意事项[J].建筑工人,2011,6:18–19.LI Wendong,LI Zhensheng.Builder’s Monthly(in Chinese),2011,6:18–19.
[13]WU H Z,CHANG J,PAN Z Z,et al.Carbonate steelmaking slag tomanufacture building materials[J].Adv Mater Res,2009,79–82:1943–1946.
[14]SHI J,HU S.Cementitious properties of ladle slag fines under auto-clave curing conditions[J].Cem Concr Res,2003,33(11):1851–1856.
[15]中国国家标准化管理委员会.JTJ270–98水运工程混凝土试验规程[S].北京:中国标准出版社,1998.Standardization Administration of China.JTJ270–98 Testing Code ofConcrete for Port and Water Engineering(in Chinese)[S].Beijing:China Standard Press,1998.
[16]中国国家质量监督检验检疫局.GBT 2542—2003砌墙砖试验方法[S].北京:中国标准出版社,2003.Bureau of Quality and Technical Supervision of China.GBT2542–2003 Test methods for wall bricks(in Chinese)[S].Beijing:China Standard Press,2003.
[17]中国国家质量监督检验检疫局.GB/T 750—1992水泥压蒸安定性试验方法[S].北京:中国标准出版社,1992.Bureau of Quality and Technical Supervision of China.GB/T750–1992 Soundness test methods for Portland cement(in Chinese)[S].Beijing:China Standard Press,1992.
[18]中国国家标准化管理委员会.GB/T 21144—2007混凝土实心砖[S].北京:中国标准出版社,2007.Standardization Administration of China.GB/T 21144–2007 Solidconcrete brick(in Chinese)[S].Beijing:China Standard Press,2007.
[19]中国国家标准化管理委员会.JC/T 422—2007非烧结垃圾尾矿砖[S].北京:中国标准出版社,2007.Standardization Administration of China.Chinese Standard JC/T422–2007:Non-fired rubbish gangue brick(in Chinese)[S].Beijing:China Standard Press,2007.
[20]中国国家标准化管理委员会.GB 5101—2003烧结普通砖[S].北京:中国标准出版社,2003.Standardization Administration of China.GB 5101–2003 Fired com-mon bricks(in Chinese)[S].Beijing:China Standard Press,2003.
[21]MONSHI A,ASGARANI M K.Producing Portland cement from ironand steel slags and limestone[J].Cem Concr Res,1999,29(9):1373–1377.
[22]BERUTO D T,BARBERIS F,BOTTER R.Calcium carbonate bindingmechanisms in the setting of calcium and calcium-magnesiumputty-limes[J].J Cult Herit,2005,6(3):253–260.
[23]陈国玺.矿物热分析粉晶分析相变图谱手册[M].成都:四川科学技术出版社,1989.
[24]TSAKIRIDIS P E,PAPADIMITRIOU G D,TSIVILIS S,et al.Utiliza-tion of steel slag for Portland cement clinker production[J].J HazardMater,2008,152(2):805–811.
[25]WANG Q,YAN P,MI G.Effect of blended steel slag-GBFS mineraladmixture on hydration and strength of cement[J].Constr Build Mater,2012,35:8–14.
基本信息:
中图分类号:X757
引用信息:
[1]曹伟达,杨全兵.钢渣–熟石灰碳化砖的特性[J].硅酸盐学报,2013,41(10):1395-1400.
基金信息:
国家科技支撑计划(2006BAF02A24)
2013-09-24
2013-09-24
2013-09-24