| 码头面层混凝土干燥收缩试验研究 |
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| 引用本文： | 王成启.码头面层混凝土干燥收缩试验研究[J].水运工程,2012(7):62-66. |
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| 作者姓名： | 王成启 |
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| 作者单位： | 中交上海三航科学研究院有限公司,上海,200032 |
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| 摘 要： | 为满足码头面层混凝土抗裂性要求,开展了码头面层混凝土干燥收缩试验研究。试验结果表明:在水灰比一定的情况下,码头面层混凝土的单位体积用水量宜<165 kg/m3;在用水量一定情况下,水灰比较大的混凝土具有较小的干燥收缩,且控制混凝土的水灰比,水灰比不宜过低,水灰比宜控制在0.45～0.55;混凝土的单位体积水泥用量宜<360 kg/m3,宜控制在300～360 kg/m3。
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| 关 键 词： | 抗裂性 干燥收缩 用水量 水灰比 胶凝材料用量 |
Experimental study of drying shrinkage of wharf surface concrete |
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| WANG Cheng-qi.Experimental study of drying shrinkage of wharf surface concrete[J].Port & Waterway Engineering,2012(7):62-66. |
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| Authors: | WANG Cheng-qi |
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| Institution: | China Communications Shanghai Third Harbor Engineering Science and Technology Research Institute Co.,Ltd.,Shanghai 200032,China |
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| Abstract: | To satisfy crack resistance of wharf surface concrete, the drying shrinkage of wharf surface concrete is studied by experiment. Experimental results show that when the water-cement ratio is constant, unit-volume water content for the wharf surface concrete shall be less than 165 kg/m3; when the water content is constant, concrete of larger water-cement ratio bears less drying shrinkage, and the water-cement ratio shall be controlled to 0.45~0.55; the unit-volume cement content for concrete shall be less than 360 kg/m3, and better limited to 300~360 kg/m3. |
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| Keywords: | crack resistance drying shrinkage water content water-cement ratios content of cementitious materials |
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