+高级检索
首页 > 过刊浏览>2015年第18卷第2期 >221-227. DOI:103969/j.issn1007 9629201502007
PDF HTML阅读 XML下载 导出引用 引用提醒
碳化对碱矿渣水泥石干燥收缩的影响
作者:
基金项目:

陕西省教育厅自然科学专项项目（2013JK0923）；陕西省自然科学基金资助项目（2013JQ6015）；同济大学道路与交通工程教育部重点实验室开放基金资助项目（K201402）


Influence of Carbonation on Drying Shrinkage of Alkali Activated Slag Cement Stone
Author:
  • 摘要
    • | |
  • 访问统计
    • |
  • 参考文献 [29]
    • |
  • 相似文献 [20]
    • | | |
  • 文章评论
    摘要:

    为研究碳化行为对碱性胶凝材料干燥收缩的影响，以水玻璃或NaOH为碱组分，制备275×50mm碱矿渣水泥石试件，并测量275×1mm水泥石薄片在干缩条件与碳化条件下的直径变化率，以表征碱矿渣水泥石的干燥收缩与碳化收缩.结果表明：在(20±1)℃，相对湿度(70±5)%的条件下，以NaOH为碱组分的碱矿渣水泥石干燥收缩大于以水玻璃为碱组分的碱矿渣水泥石干燥收缩；碳化使硅酸盐水泥石的收缩增加，但未增加碱矿渣水泥石的收缩；碱当量适当提高有利于减小碱矿渣水泥石的干燥收缩与碳化收缩；以模数为12~15的水玻璃配制的碱矿渣水泥石干燥收缩与碳化收缩较小.

    Abstract:

    In order to study the effects of carbonation behavior of alkali activated cementitious material on drying shrinkage, alkali activated slag cement stone (AASS) specimen of 27. 5× 50mm was prepared by using water glass (WG) and sodium hydroxide (NH) as the alkali activator, and diameter change rate of 27. 5× 1mm cement sheets under drying and carbonation condition was measured to characterize the drying shrinkage and carbonation shrinkage of cement stone. The results show that in the temperature of (20±1)℃ and relative humidity of (70±5)%, drying shrinkage of AASS activated with NH is greater than that of AASS activated with WG. Carbonation increases the shrinkage of Portland cement stone, but does not increase the shrinkage of AASS. The appropriate raise of Na2O is helpful to reduce drying shrinkage and carbonization shrinkage of AASS. When water glass with the modulus of 1215 is used as the activator, drying shrinkage and carbonation shrinkage is relatively small.

    参考文献
    [1]郭成举.混凝土的物理和化学[M].北京:中国铁道出版社，2004：337 343.
    GUO Chengju.Physics and chemistry of concrete[M].Beijing：Chinese Railway Press，2004：337 343.(in Chinese)
    [2]COLLINS F，SANJAYAN J G.Strength and shrinkage properties of alkali activated slag concrete placed into a large column[J].Cement and Concrete Research，1999,29(5):659 666.
    [3]BAKHAREVA T，SANJAYANA J G，CHENG Y B.Effect of admixtures on properties of alkali activated slag concrete[J].Cement and Concrete Research，2000，30(9):1367 1374.
    [4]杨长辉，吕春飞，陈科，等.碱矿渣水泥砂浆抗碳化性能研究[J].混凝土,2009(8)：100 102.
    YANG Changhui，L Chunfei，CHEN Ke，et al.Carbonation resistance of alkali activated slag cement mortar[J].Concrete，2009(8)：100 102.(in Chinese)
    [5]BAKHAREVA T，SANJAYANA J G，CHENG Y B.Resistance of alkali activated slag concrete to carbonation[J].Cement and Concrete Research，2001，31(9)：1277 1283.
    [6]SAUD Al Otaibi.Durability of concrete incorporating GGBS activated by water glass[J].Construction and Building materials，2008，22(10)：2059 2067.
    [7]PUERTAS F，PALACIOS M，VAZQUEZ T.Carbonation process of alkali activated slag mortars[J].Materials Science，2006，41(10)：3071 3082.
    [8]何娟,杨长辉.碳化对碱矿渣水泥浆体微观结构的影响[J].建筑材料学报,2012,15(1)：126 130.
    HE Juan，YANG Changhui.Influence of carbonation on microstructure of alkali activated slag cement pastes[J].Journal of Building Materials，2012，15(1)：126 130.(in Chinese)
    [9]HOBBS V.A study of non evaporable water content in cement based mixtures with and without pozzolanic materials[D].Ithaca：Dissertation of Cornell University，2000.
    [10]VALCKENBORG R M E，HAZRATI L P K.Pore water distribution in mortar during drying as determined by NMR[J].Materials and Structures，2001，34(10)：599 604.
    [11]THOMAS J J，JENNINGS H M.Changes in the size of pores during shrinkage (or expansion) of cement paste and concrete[J].Cement and Concrete Research，2003，33(11)：1897 1900.
    [12]WAN Chaojun，JENNINGS H M，THOMAS J J.et al.The shrinkage behavior of decalcified cement paste[C]∥12th International Congress on the Chemistry of Cement，M1 021(CD ROM).Montreal，Canada：[s.n.]，2007:8 13.
    [13]史才军,巴维尔·克利文科,黛拉·罗伊.碱激发水泥和混凝土[M].北京：化学工业出版社，2008:116 120.
    SHI Caijun，KRIVENKO P V，ROY D.Alkali activated cements and concretes[M].Beijing：Chemical Industry Press，2008：116 120.(in Chinese)
    [14]何娟，杨长辉，何廷树.碳化对碱矿渣水泥石孔结构的影响[J].建筑材料学报，2013,16(5)：876 880.
    HE Juan，YANG Changhui,HE Tingshu.Influence of carbonation on pore structure of alkali activated slag cement stone[J].Journal of Building Materials，2013,16(5)：876 880.(in Chinese)
    [15]ROY D M.Alkali activated cements：Opportunities and challenges[J].Cement and Concrete Research，1999，29(2)：249 254.
    [16]MOZGAWA W，DEJA J.Spectroscopic studies of alkaline activated slag geopolymers[J].Journal of Molecular Structure，2009，924 926：434 441.
    [17]何娟，杨长辉.碱矿渣水泥浆体的碳化过程研究[J].华中科技大学学报:自然科学版，2011，39(5)：29 33.
    HE Juan，YANG Changhui.Study on carbonation process of alkali activated slag cement pastes[J].Journal of Huazhong University of Science and Technology:Natural Science，2011，39(5)：29 33.(in Chinese)
    [18]VLADIMR ivica.Effects of type and dosage of alkaline activator and temperature on the properties of alkali activated slag mixtures[J].Construction and Building Materials，2007，21(7)：1463 1469.
    [19]FERNANDO P T，JOO C G，SAID J.Alkali activated binders:A review:Part 1.Historical background，terminology，reaction mechanisms and hydration products[J].Construction and Building Materials，2008，22(7)：1305 1314.
    [20]杨南如.碱胶凝材料形成的物理化学基础(Ⅰ)[J].硅酸盐学报,1996,24(2)：209 215.
    YANG Nanru.Physical chemistry basis for the formation of alkaline cementitious material(Ⅰ)[J].Journal of the Chinese Ceramic Society，1996，24(2)：209 215.(in Chinese)
    [21]KRIZAN D，ZIVANOVIC B.Effects of dosage and modulus of water glass on early hydration of alkali slag cements[J].Cement and Concrete Research，2002，32(7)：1181 1188.
    [22]WU Xuequan，ZHU Hong，HOU Xinkai，et al.Study on steel slag and fly ash composite Portland cement[J].Cement and Concrete Research，1999，29(7)：1103 1106.
    引证文献
    网友评论
    网友评论
    分享到微博
    发 布
引用本文

何娟,何廷树,杨长辉,王振军.碳化对碱矿渣水泥石干燥收缩的影响[J].建筑材料学报,2015,18(2):221-227

复制
分享
文章指标
  • 点击次数:1199
  • 下载次数: 0
  • HTML阅读次数: 0
  • 引用次数: 0
历史
  • 收稿日期:2013-09-28
  • 最后修改日期:2013-11-18
  • 在线发布日期: 2015-04-28
文章二维码
您是第 2054571 位访问者
主管单位 ：教育部
主办单位 ：同济大学
地址 ：上海市四平路1239号同济大学综合楼1701室
电话 ：021-65981597 传真 ：021-65981597
建筑材料学报 ® 2025 版权所有