| 重晶石掺量对重混凝土渗透性能的影响 |
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| 引用本文： | 侯景鹏,付雪晴,徐涵思.重晶石掺量对重混凝土渗透性能的影响[J].东北电力学院学报,2020(2):68-72. |
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| 作者姓名： | 侯景鹏 付雪晴 徐涵思 |
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| 作者单位： | 东北电力大学建筑工程学院;东北电力大学教务处 |
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| 基金项目： | 国家自然科学基金(31871882)。 |
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| 摘 要： | 试验通过二维随机分布模型模拟粗骨料在富勒级配下的分布状态,研究重晶石以20%、30%和40%替换普通卵石粗骨料对重混凝土渗透性能的影响.结果表明:随重晶石替换百分比的增加,混凝土内部流体速度场和相对水渗透系数明显下降,速度矢量的走向曲折变化,极大的提高了混凝土的抗渗透性能,但对内部压力场影响不大.
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| 关 键 词： | 二维随机分布模型 分布状态 重晶石 重混凝土 抗渗透性能 |
Effect of Barite Dosage on Permeability of Heavy Concrete |
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| Hou Jingpeng,Fu Xueqing,Xu Hansi.Effect of Barite Dosage on Permeability of Heavy Concrete[J].Journal of Northeast China Institute of Electric Power Engineering,2020(2):68-72. |
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| Authors: | Hou Jingpeng Fu Xueqing Xu Hansi |
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| Affiliation: | (School of Civil Engineering and Architecture,Northeast Electric Power University,Jilin Jilin 132012;Teaching Affairs Department,Northeast Electric Power University,Jilin Jilin 132012) |
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| Abstract: | The two-dimensional random distribution model was used to simulate the distribution state of coarse aggregate under fuller gradation,and the influence of replacing ordinary pebble coarse aggregate with barite by 20%,30%and 40%on the permeability of heavy concrete was studied.The results show that with the increase of barite replacement volume ratio,the fluid velocity field and relative water permeability coefficient in concrete decrease obviously,and the trend of velocity vector changes in tortuosity,which greatly improves the permeability of concrete,but has little effect on the internal pressure field. |
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| Keywords: | Two-dimensional random distribution model Distribution state Barite Heavy concrete Permeability resistance |
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