Effect of crack width on chloride diffusion coefficients of concrete by steady-state migration tests
作者： Seung Yup Jang , Bo Sung Kim , Byung Hwan Oh
DOI: 10.1016/J.CEMCONRES.2010.08.018
关键词:
摘要: The purpose of the present study is to explore diffusion characteristics cracked concrete according width cracks. Major test variables include crack width, strength, fly ash addition, and maximum aggregate size. have been measured by steady-state migration test. indicates that coefficients do not increase with increasing widths up so-called "threshold width." threshold for found be around 55-80 μm. Above this value, start width. A composite model introduction "crack geometry factor" was derived identify coefficient in concrete. It shown factor ranges from 0.067 0.206. Finally, effects addition size on are also discussed.
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