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, temperature data from an instrumented site in Iowa and heat storage phenomena for various weather patterns are presented. And they support the conclusion that even though pervious concrete may have a much lower SRI than traditional concrete made with similar materials, it can be considered a cool pavement.
Abstract: As the world becomes more urbanized, concerns over the urban heat island (UHI) are more pronounced. Increased urban temperatures have a negative affect on the natural and human environment by producing increased energy usage and smog formation. Pervious concrete pavement is one technology that may help mitigate increased urban temperatures. Temperature data from an instrumented site in Iowa and heat storage phenomena for various weather patterns are presented. The site contains both pervious concrete pavement with a solar reflectance index (SRI) of 14 and traditional concrete pavement with an SRI of 37. Leadership in Energy and Environmental Design (LEED) accepted a high SRI (>29) as one method to characterize a cool surface. Heat capacities of both systems were studied along with a sensitivity analysis of the inputs. The research supports the conclusion that even though pervious concrete may have a much lower SRI than traditional concrete made with similar materials, it can be considered a cool pavement ...
123 citations
TL;DR: The results showed that silicone gel is a superior sealing material to prevent water leakage compared with conventional plumbing putty and the larger permeameter cylinder diameter used in the ASTM method improved the reliability and reduced the variability of the measured permeability.
117 citations
TL;DR: Use of pervious concrete offers a promising alternative treatment method for polluted or acidic mine water and Precipitation of metal hydroxides seems to be the dominant metal removal mechanism.
115 citations
TL;DR: In this article, a series of tests designed to determine the specific role coarse aggregate has on the freeze-thaw durability of pervious concrete using the ASTM C666A procedure is described.
Abstract: Pervious concrete is becoming more common as a storm-water management tool in freeze-thaw climates. One of the main concerns or obstacles preventing a more widespread application is the aspect of freeze-thaw durability, whether perceived or actual. This paper describes a series of tests designed to determine the specific role coarse aggregate has on the freeze-thaw durability of pervious concrete using the ASTM C666A procedure. 17 different coarse aggregate samples were obtained from locations across the United States and Canada. Pervious concrete mixtures were placed using a mixture proportion previously determined as freeze-thaw durable. The range of durable aggregate gradations clearly defined a gradation specification and suggestions are made for optimizing the gradation with a small portion of sand. Mixtures with excellent freeze-thaw performance contained either granite or highly durable river gravel. The impact of aggregate angularity on mixture proportions and ultimate yield is also discussed.
114 citations
TL;DR: In this paper, the authors evaluate different pervious concrete test specimen preparation techniques in an effort to produce specimens having properties similar to in-place pervious pavement pavement, including infiltration rate, density, and porosity.
113 citations