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Advances in Concrete Construction   Volume 8, Number 1, August 2019, pages 47-54
DOI: https://doi.org/10.12989/acc.2019.8.1.047
 
Combined effect of fine aggregate and silica fume on properties of Portland cement pervious concrete
Yuanbo Zhang, Wuman Zhang and Yingchen Zhang

 
Abstract     [Full Text]
    Portland cement pervious concrete has been expected to have good water permeability, mechanical properties and abrasion resistance at the same time when Portland cement pervious concrete is applied to the actual vehicle pavement. In this study, the coarse aggregate and cement were replaced by the fine aggregate and the silica fume to improve actual road performance Portland cement pervious concrete. The Mechanical properties, the water permeability and the abrasion resistance of Portland cement pervious concrete were investigated. The results show that the compressive strength, the flexural strength and the abrasion resistance are increased when the fine aggregate and the silica fume are added to Portland cement pervious concrete separately. However, the porosity and the water permeability are decreased simultaneously. With assistance of silica fume and fine aggregate simultaneously, Portland cement pervious concrete could achieve a higher strength. The compressive strength, the flexural strength and the abrasion resistance of Portland cement pervious concrete mixed with 5% fine aggregates and 8% silica fume are increased by 93.1%, 65% and 65.2%, respectively. The porosity and the water permeability are decreased by 22.4% and 85% when Portland cement pervious concrete is mixed with 5% fine aggregate and 8% silica fume. Therefore, the replacement ratio of the fine aggregates and the silica fume should be considered comprehensively and determined on the premise of ensuring the water permeability coefficient.
 
Key Words
    Portland cement pervious concrete; fine aggregate; silica fume; water permeability; strength; porosity
 
Address
Yuanbo Zhang, Wuman Zhang and Yingchen Zhang: Department of Civil Engineering, School of Transportation Science and Engineering, Beihang Univerisity, Beijing, 100191, China
 
References
    -acc0801006-
 

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