With the infrastructure and economy develops rapidly, infrastructure materials are more and more popular in the market. The commercial concrete with high compressive strength and good durability provides strong support for construction, bridge, expressway, tunnels and other projects, so it has become an indispensable composite material in the process of industrial development.

Commercial concrete consists of aggregate, cement, admixture and water. People often pay less attention to aggregate than admixtures, but with the rapid expansion of market, concrete enterprises are paying more and more attention to the quality of aggregate due to the shortage of natural sand resources and the increasing market demand.

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