Permeability and Strength of Pervious Concrete According to Aggregate Size and Blocking Material

Vu Viet Hung, Soo-Yeon Seo, Hyun-Woo Kim and Gun-Cheol Lee
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Vu Viet Hung: Civil Engineering Department, University of Transport and Communications, Ho Chi Minh 700000, Vietnam
Soo-Yeon Seo: School of Architecture, Korea National University of Transportation, Chungju 27389, Korea
Hyun-Woo Kim: School of Architecture, Korea National University of Transportation, Chungju 27389, Korea
Gun-Cheol Lee: School of Architecture, Korea National University of Transportation, Chungju 27389, Korea

Sustainability, 2021, vol. 13, issue 1, 1-13

Abstract: The purpose of this study is to identify the differences in porosity and permeability coefficients when the mixing ratio of aggregates is different and to present the mixing ratio satisfying the strength requirement of compressive specified in a specification of Korea. Three mix ratios were suggested by considering various aggregate sizes and three cylinders were made for each ratio. The porosities of those cylinders were evaluated through the compression and water permeability test, measuring the weight of specimens in underwater and analysis of the pictured Computed Tomography (CT) image. Experiments have shown that it is best to mix 50% for 5–10 mm aggregates, 45% for 2–5 mm aggregates, and 5% for sand in terms of strength and permeability. In addition, as the proportion of fine aggregates increased, the porosity and permeability decreased. Moreover, the effectiveness of maintenance method was also examined in this study.

Keywords: porosity; permeability coefficients; mixing ratio; aggregate size; compressive strength; computed tomography (CT) image (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2021
References: View complete reference list from CitEc
Citations: View citations in EconPapers (2)

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