Topic
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.
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TL;DR: In this paper, the authors used recycled carbon fiber composite material (CCFCM) as discrete structural reinforcement in a portland cement concrete (PCC) pavement demonstration project and found that CCFCM-PC pavement sections showed lower surface deflection than the Control under the same applied load.
21 citations
25 Jul 2019
TL;DR: In this paper, a study using permeability as a key parameter was carried out to measure the infiltration characteristics of pervious concrete containing various binders and different sizes of coarse aggregates namely 6.3mm, 8mm, 10mm and 12.5mm.
Abstract: Pervious concrete is essentially used to reduce stormwater runoff and local floods. It requires regular maintenance because it is highly prone to clogging by particulate matters. Clogging is defined as a reduction in hydraulic conductivity that drastically reduces the permeability into the subgrade. A study using permeability as a key parameter was carried out to measure the infiltration characteristics of pervious concrete containing various binders and different sizes of coarse aggregates namely 6.3 mm, 8 mm, 10 mm and 12.5 mm. The binders such as Ordinary Portland Cement (OPC), Portland Pozzolana Cement (PPC), Fly ash based Geopolymer (GP) and Fly ash—Lime-Gypsum (FaL-G) were used. The results indicated that pervious concrete made with aforesaid binders showcased adequate infiltration properties that satisfied the requirements of pervious concrete. Furthermore, clogging effect study was performed in GP binder pervious concrete by applying flowing water containing mud to determine worst-case scenario percentage for clogging. The worst-case silt percentage in water to cause clogging was found to be 8.26%, 9.21%, 9.84% and 10.16%. The test results indicated that increasing of clogging material in the water significantly reduces the permeability.
21 citations
TL;DR: In this article, super absorbent polymer (SAP) was used to partially replace SAC for the preparation of a material with advanced water absorption capacities and water/fertilizer retention properties which are necessary for plants growing in planting concrete.
21 citations
TL;DR: In this paper, a method based on image processing techniques was proposed to predict the mesostructures of pervious concrete, including the pore, cement paste, and aggregate.
21 citations
Patent•
26 Jan 2005
TL;DR: In this article, a filter element consisting of a molded body of porous concrete, which element is arranged in the water stream of a purification system, is described, where the filter element may contain one or more additives to enhance adsorption of pollutants, such as heavy metal ions, phosphorous, hydrocarbons or other target soluble pollutants.
Abstract: The invention relates to a filter element consisting of a molded body of porous concrete, which element is arranged in the water stream of a purification system. In particular, the filter element ( 10 ) is a molded pervious concrete layer arranged as a partition between a lower compartment ( 9 ) and an upper compartment ( 11 ) of a treatment chamber ( 8 ), wherein the water inlet ( 12 ) opens into the lower compartment ( 9 ) and a water outlet ( 17 ) issues from the upper compartment ( 11 ). The pervious concrete filter layer may contain one or more additives to enhance adsorption of pollutants, such as heavy metal ions, phosphorous, hydrocarbons or other target soluble pollutants.
20 citations