For many homeowners, gravel is an appealing and inexpensive option for driveways ... including weed barrier or geotextile fabrics, concrete, tarmac, and gravel grids. At first glance, all of ...

"Topmix Permeable" is made by UK company Tarmac, based in the West Midlands. Its thirsty concrete can absorb 880 gallons of water per minute and could be used for car parks and driveways to ...