When it comes to popular paver materials, concrete and brick are at the top ... is unfortunately just that — soft. It's more porous than other stones, which means it's more prone to staining ...

Some pervious concrete can be placed with a concrete slipform paver. Slipform pavers do not use forms when pouring, so Fisher says most pervious placements using this equipment is done on slabs ...

Permeable surfaces like gravel path or porous concrete pavers allow water to percolate, preventing waterlogging rather than hard solid surfaces mortared together where water sits and flows at high ...

pervious concrete, interlocking pavers, and plastic grid pavers, which allow rain and snowmelt to drain into the soil instead ...

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 ...