Concrete is a hardened building material created by combining a chemically inert mineral aggregate (usually sand, gravel, or crushed stone), a binder (natural or synthetic cement), chemical additives, and water. Although people commonly use the word “cement” as a synonym for concrete, the terms in fact denote different substances: cement, which encompasses a wide variety…

First, stone by coarse crushing machine for preliminary broken, and then to the coarse material by belt conveyor to finely machine for further broken, finely after the stone into the vibrating sieve sieve to separate the two stones, meet the sand making machine feed particle size stones into the mechanism of sand sand, another part…