What Type Of Cement To Use For Concrete Countertops. For example to make the above 2-foot-by-3-foot countertop youll need two 80-pound bags. Portland cement is a material commonly used to create concrete.
GFRC concrete countertops use a special mix design and high glass fiber loads that create high flexural strength. Only Types I and III are necessary for consideration by concrete countertop fabricators. If you want to experiment with your own countertop mixture you can try some gray or white portland cement with some fine sand add some 38 inch stone for extra strength or if you want to expose the aggregate when polishing the surface.
As you shop youll find that there are three common cement types available including Portland cement masonry cement and mortar mix.
Steel reinforcing in precast concrete countertops effectively boosts flexural strength values many times that of unreinforced concrete. If you want to experiment with your own countertop mixture you can try some gray or white portland cement with some fine sand add some 38 inch stone for extra strength or if you want to expose the aggregate when polishing the surface. Make sure the mold is on a level surface that can accommodate the weight of the concrete. Work quickly when pouring concrete countertops but dont be sloppy or careless.