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首页 > 过刊浏览>2016年第19卷第6期 >1077-1081. DOI:10.3969/j.issn.1007 9629.2016.06.022
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电阻率比检测碱矿渣混凝土收缩性能可行性探讨
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国家自然科学基金资助项目（51408078）；重庆市应用开发计划项目（cstc2013yykfC50004）；科技部国际合作项目（2009DFR50450）


On the Relationship of Electrical Resistivity Ratio and Shrinkage of Alkali Activated Slag Concrete(AASC)
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    摘要:

    使用简易电阻测试法测试并计算碱矿渣混凝土不同深度的电阻率比，然后使用千分表法测试不同水胶比碱矿渣混凝土的收缩性能，并使用质量法测试同条件下碱矿渣混凝土的质量损失.建立了碱矿渣混凝土质量损失与干燥收缩之间的线性关系，探寻了碱矿渣混凝土电阻率比与质量损失之间的关系.结果表明：碱矿渣混凝土质量损失与干燥收缩之间的相关系数R2大于0.8909，且拟合曲线的斜率与碱矿渣混凝土水胶比相关性较大；碱矿渣混凝土的电阻率比对其质量损失十分敏感，且呈正相关，因此可通过监测碱矿渣混凝土的电阻率比来评价其干燥收缩性能.

    Abstract:

    Electrical resistivity ratio of alkali activated slag concrete（AASC） at different depths was tested with a simple resistance testing set up. Drying shrinkage of AASC was determined by a dial gauge method. Mass loss was detected by mass method. The correlation between mass loss and drying shrinkage was established by linear regression fitting. The results show that linear correlation coefficient R2 between mass loss and drying shrinkage is greater than 0.8909, the slope of the fitted line is mainly impacted by water to binder ratio； the electrical resistivity ratio was super sensitive to mass loss, and a positive correlativity is found between them, therefore, the changes of drying shrinkage can be monitored by the electrical resistivity ratio in accordance to the above relationships.

    参考文献
    [1]SHI C,KRIVENKO P V,ROY D.Alkali activated cements and concretes[M].Abingdon： Taylor and Francis,2006：2 5.
    [2]RASHAD A M.A comprehensive overview about the influence of different additives on the properties of alkali activated slag—A guide for civil engineer[J].Construction and Building Materials,2013,47(10)：29 55.
    [3]PROVIS J L,PALOMO A,SHI C.Advances in understanding alkali activated materials[J].Cement and Concete Research,2015,78：110 125.
    [4]PALACIOS M,PUERTAS F.Effect of superplasticizer and shrinkage reducing admixtures on alkali activated slag pastes and mortars[J].Cement and Concrete Research,2005,35(7)：1358 1367.
    [5]PALACIOS M,PUERTAS F.Effect of shrinkage reducing admixtures on the properties of alkali activated slag mortars and pastes[J].Cement and Concrete Research,2007,37(5)：691 702.
    [6]JIN F,AL TABBAA A.Strength and drying shrinkage of slag paste activated by sodium carbonate and reactive MgO[J].Construction and Building Materials,2015,81(4)：58 65.
    [7]YANG L Y,JIA Z J,ZHANG Y M,et al.Effects of nano TiO2 on strength,shrinkage and microstructure of alkali activated slag pastes[J].Cement and Concrete Composites,2015,57(3)：1 7.
    [8]YUAN X H,CHEN W,LU Z A,et al.Shrinkage compensation of alkali activated slag concrete and microstructural analysis[J].Construction and Building Materials,2014,66(5)：422 428.
    [9]何真,王信刚,梁文泉,等.水泥基材料电特性的研究进展[J].建筑材料学报,2004，7(1)：46 51.
    HE Zhen,WANG Xingang,LIANG Wenquan,et al.Review of study on electrical property of cement based materials[J].Journal of Building Materials,2004,7(1)：46 51.(in Chinese)
    [10]钱觉时,徐姗姗,李美利,等.混凝土电阻率测量方法与应用[J].山东科技大学学报（自然科学版）,2010,29(1)：37 42.
    QIAN Jueshi,XU Shanshan,LI Meili，et al.The measurement and application of resistivity for concrete[J].Journal of Shandong University of Science and Technology(Natural Science),2010,29(1)：37 42.(in Chinese)
    [11]廖宜顺.基于电阻率法的水泥水化与收缩特性研究[D].武汉：华中科技大学,2013.
    LIAO Yishun.Study on hydration and shrinkage characterization of cement pastes using electrical resistivity measurement[D].Wuhan：Huazhong University of Science and Technology,2013.(in Chinese)
    [12]LUBECK A,GASTALDINI A L G,BARIN D S,et al.Compressive strength and electrical properties of concrete with white Portland cement and blast furnace slag[J].Cement and Concrete Composites,2012,34(3)：392 399.
    [13]许仲梓.水泥混凝土电化学进展—交流阻抗谱理论[J].硅酸盐学报,1994，22(2)：173 180.
    XU Zhongzi.Development in electrochemistry of cement and concrete science AC impedance spectroscopy theory[J].Journal of the Chinese Ceramic Society,1994.22(2)：173 180.(in Chinese)
    [14]钱觉时,陈伟,汪宏涛,等.电阻率用于混凝土养护状态与效率评价研究[J].功能材料,2013,44(13)：1888 1891.
    QIAN Jueshi,CHEN Wei,WANG Hongtao,et al.Use of electrical resistivity of concrete in assessing state and efficiency of moist curing[J].Journal of Functional Materials,2013,44(13)：1888 1891.(in Chinese)
    [15]JIANG Z,SUN Z,WANG P.Autogenous relative humidity change and autogenous shrinkage of high performance cement pastes[J].Cement and Concrete Research, 2005,35(8)：1539 1545.
    [16]COLLINS F,SANJAYAN J G.Effect of pore size distribution on drying shrinkage of alkali activated slag concrete [J].Cement and Concrete Research,2000,30(9)：1401 1406.
    [17]DUXSON P,FERNANDEZ JIMENEZ A,PROVIS J L,et al.Geopolymer technology：the current state of the art[J].Journal of Materials Science,2007,42(9)：2917 2933.
    [18]梅琳.碱矿渣混凝土干缩性能及改善措施研究[D].重庆：重庆大学，2010.
    MEI Lin.Research on the drying performance and improving measures of alkali activated slag concrete[D].Chongqing：Chongqing University，2010.(in Chinese)
    [19]陈科.碱矿渣水泥砂浆收缩性能及机理研究[D].重庆：重庆大学，2011.
    CHEN Ke.Research on the performance and mechanism of shrinkage of alkali activated slag cement mortars[D].Chongqing：Chongqing University，2011.(in Chinese)
    [20]肖莲珍,李宗津,魏小胜.用电阻率法研究新拌混凝土的早期凝结和硬化[J].硅酸盐学报，2005,33(10)：1271 1275.
    XIAO Lianzhen,LI Zongjin,WEI Xiaosheng.Early setting and hardening process of young concrete using the resistivity measurement [J].Journal of the Chinese Ceramic Society,2005,33(10)：1271 1275.(in Chinese)
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杨长辉,朱效宏,郑雨佳,李青,杨凯.电阻率比检测碱矿渣混凝土收缩性能可行性探讨[J].建筑材料学报,2016,19(6):1077-1081

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  • 收稿日期:2016-05-26
  • 最后修改日期:2016-08-17
  • 在线发布日期: 2016-12-29
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