2. It plays the role of filling and can improve the structural density.
3. It has morphological effect because it has weak adsorption to water. It has good fluidity.
Characteristics of concrete
Concrete has the characteristics of abundant raw materials, low price and simple production technology, so its consumption is increasing day by day. At the same time, concrete also has the characteristics of high compressive strength, good durability and wide range of strength grades. These characteristics make it widely used, not only in various civil engineering, but also in shipbuilding, machinery industry, marine development, geothermal engineering and so on. Concrete is also an important material.