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 article, pervious concrete mixes, containing various proportions of Styrene Butadiene Rubber (SBR) of (0, 5, 8 % wt of cement), with two water/cement (0.30 and 0.35) were produced.
17 citations
TL;DR: In this article, the authors describe an investigation into the assessment of performance and suitability of pervious paver blocks (PPB) using reclaimed asphalt pavement (RAP) aggregates.
17 citations
Patent•
06 May 2015
TL;DR: In this paper, the authors proposed a method for detecting the character of pervious concrete by processing images, which consists of the following steps: cutting a concrete sample transversely to expose an intact and smooth cutting plane which serves as an experimental surface; obtaining the images of the obverse side of the experimental surface of the brick-powder processed perviouscrete; selecting the largest regular section image of the sample from the obtained images of obverse-side, and calculating the total pixel value of the largest part image; blacking and whitening the selected image; extracting the pore image
Abstract: The invention provides a method for detecting the character of pores of pervious concrete by processing images. The method comprises the following steps: cutting a pervious concrete sample transversely to expose an intact and smooth cutting plane which serves as an experimental surface; obtaining the images of the obverse side of the experimental surface of the brick-powder processed pervious concrete; selecting the largest regular section image of the sample from the obtained images of the obverse side, and calculating the total pixel value of the largest regular section image; blacking and whitening the selected image; extracting the pore image of the blacked and whitened image, and calculating the pixel value of each pore; calculating the total pixel value of the pores; calculating the total porosity and the distribution situation of internal pore diameters according to the obtained pixel values of the pores and the obtained total pixel value of the pores; repeating the steps, obtaining the total porosity of a plurality of cutting surfaces of the same pervious concrete sample and the distribution situation of pore diameters, and calculating the average value of the total porosity of the cutting surfaces of the same pervious concrete sample to obtain the total porosity of the pervious concrete sample and further the character of the pores of the pervious concrete.
17 citations
TL;DR: In this article, a new laboratory evaporation measurement device (LEMD) was developed to estimate the evapore rates of urban surface materials, which can be measured using two different methods concurrently.
17 citations
Patent•
21 Jan 2009
TL;DR: In this article, a high-strength fiber pervious concrete pavement brick and a preparation method for its preparation is described. But this method is not suitable for pervious pavement bricks, since the aggregate gradation has no continuity, a large quantity of connecting pores exist in a structure, and a porous concrete product with a large number of non-closed pores inside.
Abstract: The invention relates to a high-strength fiber pervious concrete pavement brick and a preparation method thereof. The high-strength fiber pervious concrete pavement brick is formed by stirring, distributing, extruding materials such as single-sized aggregate (quartz sand, broken stones), P.O42.5 cement, modified polypropylene fiber as a reinforcing material, an air-entraining hardening accelerator, and water. The aggregate gradation has no continuity, a large quantity of connecting pores exist in a structure, so the pervious concrete pavement brick is a porous concrete product with a large quantity of non-closed pores inside. During the rain or when water is accumulated on a road surface, the water can successfully permeate into the underground or is temporarily stored in a pervious subgrade along the perforative 'paths' in the pervious concrete pavement brick and then is further drained.
17 citations