| 无机矿物掺合料对水泥石电阻率影响规律的研究 |
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| 引用本文： | 丁华涛,胡曙光,丁庆军,耿健.无机矿物掺合料对水泥石电阻率影响规律的研究[J].国外建材科技,2008,29(2):4-7. |
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| 作者姓名： | 丁华涛 胡曙光 丁庆军 耿健 |
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| 作者单位： | 武汉理工大学材料科学与工程学院,武汉,430070 |
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| 基金项目： | 国家自然科学基金
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湖北省科学基金计划创新群体项目 |
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| 摘 要： | 借助四电极法,研究了粉煤灰及矿渣微粉对水泥石电阻率的影响规律。结果表明:掺粉煤灰水泥石体系的电阻率变化趋势随着龄期的延长由慢变快;在前期,水泥石的电阻率与粉煤灰掺量成反比且低于基准样;在后期,水泥石的电阻率与粉煤灰掺量成正比且超过基准样。水泥石电阻率与矿渣微粉掺量成正比,并且随着龄期的延长其增长速率由快变慢;二者复合能更好的体现其"叠加效应",在一定龄期内,可以实现电阻率的持续增长。
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| 关 键 词： | 无机矿物掺合料 水泥石 电阻率 |
| 修稿时间： | 2008年3月28日 |
Influnce of Inorganic Mineral Admixtures on the Resistivity of Cement Paste |
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| DING Hua-tao,HU Shu-guang,DING Qing-jun,GENG Jian.Influnce of Inorganic Mineral Admixtures on the Resistivity of Cement Paste[J].Science and Technology of Overseas Building Materials,2008,29(2):4-7. |
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| Authors: | DING Hua-tao HU Shu-guang DING Qing-jun GENG Jian |
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| Affiliation: | DING Hua-tao,HU Shu-guang,DING Qing-jun,GENG Jian(School of Materials Science , Engineering,Wuhan University of Technology,Wuhan 430070,China) |
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| Abstract: | With the aid of four-probe method,this article has studied the influence rule of fly ash and slag-micropowder to the cement paste resistivity.The result indicated that,with age lengthening,the variational tendency of cement paste resistivity added fly ash changed from slowly to quickly;in the earlier time,the cement paste resistivity was inverse to the quantity of the fly ash also lower than the datum type;In the later time,the cement-paste resistivity was direct to the quantity of the fly ash and also surp... |
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| Keywords: | inorganic mineral admixtures cement paste resistivity |
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