Perlite is an aggregate used in cement. Unlike sand, gravel or stone, perlite is not used for load-bearing concrete. Builders often use it for insulating and decorative concrete. Perlite is a volcanic ...
Put 1 1/2 shovels of masonry cement and two shovels of sand on the prepared surface. Add 1 1/2 shovels of perlite, which is a volcanic mineral. Mix all the dry ingredients together. Fold the dry ...