Effect of Mix Proportion on Strength and Permeability of Pervious Concrete for Use in Pavement
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概要
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A study to achieve high-strength, high porosity and permeability pervious concrete pavement was carried out. Mix proportions in terms of cement content, coarse aggregate-cement ratio (CA/C) and water-cement (W/C) ratio were varied. A mix proportion providing the optimal combination of strength and porosity was chosen, and polymer superplasticizers were added to examine their effect on the strength and porosity. Results showed that a water-cement ratio of 0.2 resulted in a dry and brittle mix that led to compressive strength less than 15MPa but a high permeability rate of approximately 20mm/s. A mix with w/c ratio of 0.3 and CA/C ratio of 4.25 resulted in compressive strength of 13.9MPa, flexural strength of 3MPa and high porosity of more than 20%. The use of high cement content of 495kg/m3 in the mix resulted in high compressive strengths of 51.8MPa, flexural strength of more than 4MPa, however permeability was reduced to approximately 1mm/s.
- Eastern Asia Society for Transportation Studiesの論文
著者
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FWA Tien
Department of Civil Engineering National University of Singapore
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TAN Kiang
Department of Civil and Environmental Engineering, National University of Singapore
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LIM Emiko
Department of Civil and Environmental Engineering, National University of Singapore
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FWA Tien
Department of Civil and Environmental Engineering, National University of Singapore
関連論文
- Effect of Mix Proportion on Strength and Permeability of Pervious Concrete for Use in Pavement
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