粉煤灰混凝土水渗透与空气渗透性能的相关性分析
发布时间：2018-10-25 07:18
【摘要】：采用3种不同试验方法研究了粉煤灰混凝土的水渗透系数、渗透率和空气渗透系数。分析了水渗透系数试验的稳定规律,各渗透性能指标与混凝土配合比参数的关系,以及3类试验结果的相关性。结果表明,水渗透系数测试稳定时间至少为2周;3类渗透试验结果均与养护龄期呈幂指数关系,与水胶比呈线性关系;将水渗透系数转化为本征渗透系数后,与渗透率、空气渗透系数线性相关;空气渗透系数为本征渗透系数的10倍左右,其测试结果与测试真空度相关。
[Abstract]:The water permeability, permeability and air permeability of fly ash concrete were studied by three different test methods. The stability rule of water permeability coefficient test, the relation between each permeability index and concrete mix ratio parameter, and the correlation of three kinds of test results are analyzed. The results show that the stable time of water permeability test is at least 2 weeks, the results of three kinds of permeability tests are exponentially related to the curing age and linear to the water binder ratio, and the water permeability coefficient is changed into intrinsic permeability coefficient. The air permeability coefficient is about 10 times of that of the intrinsic permeability coefficient, and the test results are related to the vacuum degree of the test.
【作者单位】： 南京水利科学研究院水文水资源与水利工程科学国家重点实验室国家能源水电工程安全与环境技术研发中心;
【基金】：中央级公益性科研院所基本科研业务费专项项目(Y415001)
【分类号】：TU528
本文编号：2293012
[Abstract]:The water permeability, permeability and air permeability of fly ash concrete were studied by three different test methods. The stability rule of water permeability coefficient test, the relation between each permeability index and concrete mix ratio parameter, and the correlation of three kinds of test results are analyzed. The results show that the stable time of water permeability test is at least 2 weeks, the results of three kinds of permeability tests are exponentially related to the curing age and linear to the water binder ratio, and the water permeability coefficient is changed into intrinsic permeability coefficient. The air permeability coefficient is about 10 times of that of the intrinsic permeability coefficient, and the test results are related to the vacuum degree of the test.
【作者单位】： 南京水利科学研究院水文水资源与水利工程科学国家重点实验室国家能源水电工程安全与环境技术研发中心;
【基金】：中央级公益性科研院所基本科研业务费专项项目(Y415001)
【分类号】：TU528
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