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.

High-strength permeable fiber concrete and preparation method thereof

Abstract: The invention discloses a high-strength permeable fiber concrete. The high-strength permeable fiber concrete comprises cement, an additive, water, cobblestones and high-strength engineering fibers, the weight of the high-strength engineering fibers is above 3% of the weight of cement and is less than 0.8% of the total weight of the concrete. The invention also discloses a preparation method of the high-strength permeable fiber concrete. The high-strength permeable fiber concrete is obtained through organically combining common permeable concrete with permeable fiber concrete, and is a novel antifreeze permeable concrete having a high strength and a freeze-thaw resistance. The high-strength permeable fiber concrete can substantially improve the construction quality to substantially reduce the road maintenance and repairing rates in northern cold regions, so the durability and the safety of a pavement are guaranteed.

Permeable Pavement Design and Construction: What Have We Learned Recently?

Abstract: Permeable pavements have been gaining popularity throughout North America. Permeable pavements typically consist of pervious concrete, porous asphalt, or permeable interlocking concrete block paving units over an open grade base/subbase layer(s). Permeable pavements are designed to infiltrate stormwater, reduce peak flows, filter and clean contaminants in the water stream, and promote groundwater recharge. They have become an integral part of low-impact design and best management practices for stormwater management. To be effective, permeable pavements must be designed to provide sufficient structural capacity to accommodate the anticipated vehicle loadings and deal with stormwater flowing into and out of the permeable pavement. While there have been many well designed and constructed permeable pavements, this is a relatively new technology and there have been some "issues" with their performance. This paper describes some of the basics of best practices, design, construction, and maintenance considerations for permeable pavement design and construction and focuses on best practices of permeable pavement design and construction in North America.

Cement stable crushed stone for water-permeable concrete

Abstract: The invention belongs to the technical field of concrete, and particularly relates to a cement stable crushed stone for water-permeable concrete. The cement stable crushed stone is prepared from dry materials and water, wherein the dry materials comprise the following components in parts by weight: 140 to 160 parts of cement, 180 to 200 parts of stone chips, and 1400 to 1600 parts of coarse aggregate. The cement stable crushed stone has the advantage that the cement stable crushed stone can be applied to road bedding layers, and the cement stable crushed stone and an upper water-permeable concrete layer form a homogenizing effect, so that the good foundation function is realized, the support on the water-permeable concrete is obviously improved, the strength is further improved, and the actual use effect is improved.

Trends in the Application of Permeable Pavement as Sustainable Highway Storm Water Management Option for Safe-Use of Roadways

Abstract: Accumulation of storm water on road surfaces and the associated runoff result in environmental pollution problems, negative impact on durability of pavement and safety problems for the travelling public. Permeable pavement has been used to reduce imperviousness of paved surfaces and storm water runoff due to the presence of pores through which water passes into underneath layer of the pavement where the water is collected for treatment prior to discharge into the environment. As a result, permeable pavement is seen as an environmentally sustainable system. Although permeable pavement was initially developed for foot and bicycle traffic, because of sustainability benefits it provides, there is growing interest in advancing the use of permeable pavement in highway storm water management. This article presents trends in the application of permeable pavement in highway storm water management and some associated highway safety benefits.