The concrete has the characteristics of rich raw materials, low prices, and simple production technology, so it makes it more and more dosage. At the same time, concrete also has the characteristics of high pressure resistance, good durability, and wide range of strength. These characteristics make it widely use. Not only is it in various civil engineering, it is the shipbuilding industry, the mechanical industry, the development of the ocean, and geothermal engineering, etc., and concrete is also an important material.

Concrete mixer: According to different construction requirements and conditions, concrete can be stirred at the construction site or mixing station. The concrete mixer with good liquidity can use a self -falling mixer; less liquidity or dry hard concrete is suitable for mixing with mandatory mixers. Before stirring, the ingredients should be controlled according to the combined ratio. The sequence and stirring time affect the quality of the concrete, and it should be strictly grasped to mix and uniformly mix each component material.