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首页> 外文期刊>MATEC Web of Conferences >Relationship between Anti-frozen Durability and Pore Structure on Concrete in Freeze and Thaw Cycle Environment
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Relationship between Anti-frozen Durability and Pore Structure on Concrete in Freeze and Thaw Cycle Environment

机译：冻融循环环境下混凝土抗冻耐久性与孔结构的关系

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To detect which micro structure index can make an effected on the anti-frozen durability on concrete, 3 kinds of concrete with different mix proportion have been made. The dynamic modulus of elasticity and pore structure index were detected and the relativity of them was analysed. The result shows that the dynamic modulus of elasticity decreases after freezing and wary with porosity. Critical pore size becomes larger. The gel pore amount decreases. The capillary and macro pore amount increase. There is a good relativity between frost-resistance performance and pore parameters. By decreasing porosity and the amount of macro pore, increasing gel pore amount, the anti-frozen durability can be enhanced.
机译：为了检测哪种微观结构指标可以影响混凝土的抗冻耐久性，制备了三种不同配合比的混凝土。检测动态弹性模量和孔隙结构指标，并分析它们的相关性。结果表明，冷冻后的动态弹性模量降低，并留有孔隙。临界孔径变大。凝胶孔减少。毛细孔和大孔数量增加。防冻性能与孔隙参数之间具有良好的相关性。通过降低孔隙率和大孔的数量，增加凝胶孔的数量，可以增强抗冻耐久性。

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