concrete paving stones
February 7, 2010 8:47 am HomeThere are many different types of materials that make the paving stones but the popular choices are the bricks, natural, and concrete concrete stones. Miners gather from natural deposits of marble, granite, slate, limestone, sandstone and other natural materials like the stones. When the natural stones are harvested and cut the process is very expensive which makes paving stones rather a costly choice. The bricks that are manufactured are less expensive. They are made by a mixture of clay and shale which are fired at 2000 degrees to cure. The concrete paving stones are made from a mixture of cement with color pigment and aggregate and then fired. These are both more economical choices and they are very strong and attractive as well making great choices for both roads and driveways.