Taking out these small particles means there are more pores that are filled with air or, after a rain event, water. Beneath the top layer of porous pavement, there are bedding layers, which are also ...

A typical porous asphalt pavement is composed of several layers. Starting at the bottom, the first layer is an uncompacted soil subgrade, which will optimize infiltration of water into the aquifier.

But there is a new kind of pavement that can help with stormwater control. According to PennDOT, pervious, or permeable, ...

A pervious concrete pour is a three-step process - placing to elevation, compaction and curing. Unlike traditional concrete which looks for a smooth, finished surface, pervious concrete ...

A new type of porous concrete supports the growth of plants, including vegetable crops, and could make cities greener. Credit: piranka/Getty Images A new type of porous concrete that provides ...