The term “permeable interlocking pavers” may confuse the casual web surfer who pulls up image after image of what looks like a mixture of cement and grass. These are actually one form of paver that is designed to drain water through a combination of a concrete grid, natural plantings of grass, and a crushed rock foundation below.In most cases, Exterior Worlds recommends much more aesthetic and resilient hardscapes that the ones that combine grass and concrete. There are many ways to use concrete in an eco-friendly manner that creates much more aesthetically appealing forms than what you would call a grass paver patio, or a grass driveway.
Patios that are rendered pervious to rain water can be constructed out of smaller, non-pervious pavers set in pervious castings. They can also be created out of small, solid pavers with spaces between filled with sand or crushed stone that allows water to drain through. Others are more like a grid that can be filled with porous materials such as aggregate or crushed stone. The more expensive types are made from porous concrete and interlock just like solid, standard pavers do.
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