Study of Pervious Concrete in Aggregate Gradation Structure

Fang Ran Zhao; Zhao Lu Ding

doi:10.4028/www.scientific.net/AMR.450-451.439

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 450-451Study of Pervious Concrete in Aggregate Gradation...

Study of Pervious Concrete in Aggregate Gradation Structure

Abstract:

The influence of the accumulated structure formed by the aggregate particles on permeability and strength of permeable concrete was investigated by three-dimensional geometry method, which was proved by theoretical analysis and experimental study. In theoretical analysis, the accumulation structure of the aggregate was in a steady or quasi-steady state, particle size distribution was optimized to obtain the desired permeability coefficient and sufficient strength. The results showed that it is more appropriate that the ratio of the secondary particle size is 0.2d - 0.4d when the large particle size is d. To obtain good permeability in experimental study, the large voids have a large proportion in all kinds of voids statistics distribution of aggregate accumulation of structure in pervious concrete. The percentage of fine particles needs to be controlled to achieve the desired permeability and concrete strength.

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Periodical:

Advanced Materials Research (Volumes 450-451)

Pages:

439-444

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.450-451.439

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Online since:

January 2012

Authors:

Fang Ran Zhao, Zhao Lu Ding

Keywords:

Aggregate Gradation, Parameters of Accumulated Structure, Permeability Coefficient, Pervious Concrete

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