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Pervious concrete

About: Pervious concrete is a research topic. Over the lifetime, 2920 publications have been published within this topic receiving 27720 citations. The topic is also known as: porous concrete & permeable concrete.


Papers
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Journal ArticleDOI
TL;DR: In this article, the properties of pervious concrete containing high-calcium fly ash were analyzed and the results showed that the use of fly ash as partial replacement of Portland cement enhanced the mixing of paste resulting in a uniform mix and reduced amount of superplasticizer used in the mixture.
Abstract: This paper presents the properties of pervious concrete containing high-calcium fly ash. The water to binder ratios of 0.19, 0.22, and 0.25, designed void ratios of 15, 20, and 25%, and fly ash replacements of 10, 20, and 30% were used. The results showed that the use of fly ash as partial replacement of Portland cement enhanced the mixing of paste resulting in a uniform mix and reduced amount of superplasticizer used in the mixture. The compressive strength and flexural strength of pervious concrete were slightly reduced with an increase in fly ash replacement level, while the abrasion resistance increased due mainly to the pozzolanic and filler effects. The compressive strength and flexural strengths at 28 days were still higher than 85% of the control concrete. The aggregate size also had a significant effect on the strength of pervious concrete. The compressive strength and flexural strength of pervious concrete with large aggregate were higher than that with small aggregate.

12 citations

Journal ArticleDOI
21 Feb 2018-Silicon
TL;DR: In this paper, the effect of mix design factors on removal of Cu and Ni from aqueous solution was investigated, and appropriate amounts of natural zeolite, iron oxide and superplasticizer were optimized by Response Surface Methodology (RSM), with the goal of maximizing Cu andNi removal as well as increasing permeability and minimizing the cost of concrete construction.
Abstract: In the past decade more attention has been paid to storm waters as well as urban runoff as a new source of water. While these waters can be effectively used, one should remove their unwanted pollutants; thus the effect of mix design factors on removal of Cu and Ni from aqueous solution was investigated. For this purpose a fractional factorial experiment was used and the results were analyzed and optimized by using Minitab 17 software. Subsequently, appropriate amounts of natural zeolite, iron oxide and superplasticizer were optimized by Response Surface Methodology (RSM), with the goal of maximizing Cu and Ni removal as well as increasing permeability and minimizing the cost of concrete construction. The optimum mix design of pervious concrete includes pumice aggregate (grain size between No. 4 ∼ No. 3/8” sieve), W/C (0.25), A/C (4), 100 Kg Portland cement per cubic meter of concrete, silica fume (5.05 percentage of cement weight), zeolite (5.45 percentage of cement weight), iron oxide (0.5 percentage of cement weight), and superplasticizer (0.11 percentage of cement weight). Verification samples indicated 69% Ni removal, 84.5% Cu removal, the compressive strength of 2 MPa and permeability coefficient of 1.6 cm/s.

12 citations

Journal ArticleDOI
TL;DR: In this article, a mathematical model is developed that captures the transport of liquid water in hardened concrete, as well as the chemical reactions that occur between the imbibed water and the residual calcium-silicate compounds residing in the porous concrete matrix.
Abstract: A mathematical model is developed that captures the transport of liquid water in hardened concrete, as well as the chemical reactions that occur between the imbibed water and the residual calcium-silicate compounds residing in the porous concrete matrix. The main hypothesis in this model is that the reaction product—calcium-silicate hydrate gel—clogs the pores within the concrete, thereby hindering water transport. Numerical simulations are employed to determine the sensitivity of the model solution to changes in various physical parameters, and compare to experimental results available in the literature.

12 citations

Patent
15 Aug 2007
TL;DR: In this article, a colorful road plated with porous polymer concrete face and relative construction is proposed, where the road has high strength, better deformation property, abrasion resistance or the like, while the color can adjust via different fields.
Abstract: A colorful road plated with porous polymer concrete face and relative construction first mix polymer, broken stone and stuff uniformly to form polymer porous concrete material, lay to form polymer porous concrete face 1, mix uniformly the colorful face, and plate colorful face on the face of porous polymer concrete face layer 1 to form a colorful face layer 2, while the colorful face layer 2 is adhered with the porous polymer concrete face layer 1, to form a colorful road. The inventive road has high strength, better deformation property, abrasion resistance or the like, while the color can adjust via different fields.

12 citations

Patent
09 Mar 2016
TL;DR: In this article, a plugging-resistant freeze-resistant pervious concrete pavement brick is proposed, which consists of a plugged-resistant surface layer and a base layer, wherein the plugging resistant surface layer is positioned on the base layer and consists of the following materials components in a compounding ratio and in parts by weight: 80-100 parts of cement, 310-360 parts of coarse sand, 7-11 parts of silica fume, 6-10 parts of VAE emulsion, 25-35 parts of water and 0.8-1.2
Abstract: The invention relates to a plugging-resistant freeze-resistant pervious concrete pavement brick. The plugging-resistant freeze-resistant pervious concrete pavement brick mainly comprises a plugging-resistant surface layer and a base layer, wherein the plugging-resistant surface layer is positioned on the base layer and consists of the following materials components in a compounding ratio and in parts by weight: 80-100 parts of cement, 310-360 parts of coarse sand, 7-11 parts of silica fume, 6-10 parts of VAE emulsion, 25-35 parts of water and 0.8-1.2 parts of a water reducing agent; the base layer consists of the following material components in the compounding ratio and in parts by weight: 90-110 parts of cement, 220-260 parts of pebbles, 70-110 parts of coarse sand, 8-12 parts of silica fume, 8-12 parts of VAE emulsion, 0.1-0.4 of polyethylene fibers, 25-35 parts of water and 0.8-1.2 parts of a water reducing agent. New material components are designed, so that the concrete brick provided by the invention has good pervious freeze-thaw resistant effects and is not easy to plug.

12 citations


Network Information
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Performance
Metrics
No. of papers in the topic in previous years
YearPapers
20241
2023152
2022289
2021186
2020213
2019294