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.

Analysis and Contrast of Different Pervious Pavements for Management of Storm-Water in a Parking Area in Northern Spain

Abstract: Pervious pavements are rainwater control systems that filter and store rainwater, reducing runoff formation and the risk of urban flooding. In addition, these sustainable urban drainage systems provide an additional source of water for non-potable use, which implies a cost and energy saving. An experimental 45 place parking lot consisting of five different types of pervious pavements was constructed in a public park in Santander, northern Spain. The purpose of this research is to evaluate and compare the effect of each pervious pavement type on water storage under specific conditions in northern Spain over time. The main results showed that the pervious materials chosen influence the behaviour of pervious pavements for storm-water management. Firstly, pervious surface materials had a greater effect than the geotextile layer. Nevertheless, the differences in terms of storm-water management using the different pervious pavement types tested still need to be confirmed. Clustering techniques showed three different behaviours according to the pervious surface used. Moreover, porous asphalt (PA) and porous concrete (PC) showed the highest correlation (86%), whereas plastic grid pavers (PGC) showed least correlation with the others. The capacity of pervious pavement to manage urban storm-water was demonstrated and this experimental parking area provided an alternative water source supplying enough water to irrigate a public garden for almost an entire month.

Building and Nonpavement Applications of No-Fines Concrete

Abstract: No-fines concrete is defined as a type of concrete from which the fine aggregate component of the matrix is entirely omitted. The aggregate is of a single size and the finished product is a cellular concrete of comparatively low strength and specific weight. The cellular nature eliminates capillary attraction and provides greater thermal insulation and water permeability than exists in conventional concrete. The advantages of no-fines concrete for different construction purposes have long been recognized. The post–World War II era has experienced the extensive use of no-fines concrete for load-bearing walls in single and multistory buildings, retaining walls, and ground-drainage slab systems. This paper traces the development and applications of no-fines concrete for building and other nonpavement purposes. The pavement applications are introduced in a companion article published in the ASCE Journal of Transportation Engineering .