Brief introduction of ordinary concrete

Concrete in a broad sense is an artificial stone made of cementitious materials, coarse and fine aggregates, water and other additives in a proper proportion.

In civil engineering, the most widely used is ordinary concrete: cement concrete made of cement as cementing material, sand and gravel as aggregate and mixed with water. Advantages: rich raw materials and low cost; Good plasticity; High strength; Good durability; Can be reinforced with steel bars;

Disadvantages: self-importance; Brittle material; According to the cementing material:

Cement concrete (the most widely used in civil engineering); Gypsum concrete;

Asphalt concrete (widely used in highway engineering); Polymer concrete, etc.

According to apparent density:

Overweight concrete (> 2500kg/m3);

Ordinary concrete (1900

Lightweight concrete (600

According to the use: concrete for structure; Road concrete; Special concrete; Heat-resistant concrete; Acid-resistant concrete, etc.