| 青藏铁路预应力梁波纹管压浆材料的试验研究 |
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| 引用本文： | 马莉,王起才,李盛.青藏铁路预应力梁波纹管压浆材料的试验研究[J].水利与建筑工程学报,2008,6(4). |
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| 作者姓名： | 马莉 王起才 李盛 |
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| 作者单位： | 兰州交通大学,甘肃,兰州,730070 |
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| 基金项目： | 铁道部“青蓝工程”基金项目(2005G032) |
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| 摘 要： | 针对青藏高原环境、气候特点及压浆材料本身的特点,通过试验采用体积排水法测试水泥浆体预养前后、冻结前后体积变化率及水泥浆体冻胀后、预养前的体积变化率,分析研究在同一外加剂和同一水灰比的情况下水泥浆体体积变化率与预养时间以及温度变化的关系,研究得出,水泥浆体体积变化率与预养时间成对数函数关系,与温度变化的关系可用多项式来体现。
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| 关 键 词： | 水泥浆体 体积变化率 预养时间 温度 |
Experimental Study on Mudjacking Material in Prestressed Beam in Qinghai-Tibet Railroad |
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| MA Li,WANG Qi-cai,LI Sheng.Experimental Study on Mudjacking Material in Prestressed Beam in Qinghai-Tibet Railroad[J].Journal of Water Resources Architectural Engineering,2008,6(4). |
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| Authors: | MA Li WANG Qi-cai LI Sheng |
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| Affiliation: | Lanzhou Jiaotong University;Lanzhou;Gansu 730070;China |
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| Abstract: | Aimed at the environmental quality in the region of Qinghai-Tibet Plateau and the features of nudjacking material,the volume change rates of the cement paste before and after the precured time and freezing are measured as well as after freezing and before precuring through a volume draining method,and the relationship between the volume change rate and the precured time and temperature of the cement paste under the condition of same admixture and water cement ratio is analyzed.The research results show that... |
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| Keywords: | cement paste volume change rate precured time temperature |
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