A Novel Polymer Concrete Made From Fine Silica Sand and .
WEBNov 13, 2015 · The aggregate used in this research is fine silica sand, with the maximum diameter of grains of 5 mm, produced by the Damavand Casting Sand Co. This is the strongest type of sand known in the market of construction materials and includes 96–% SiO 2, % Fe 2 O 3, ...