Concrete is very important for social construction such as housing construction and bridge construction. The quality of concrete directly affects the efficiency and quality of the project. What kind of concrete is there? What are the common grades of cement concrete? Let's learn about it with Xiaobian.
What kind of concrete
According to the cementitious material:
1. Inorganic cementitious materials such as cement concrete, gypsum concrete, silicate concrete, water glass concrete, etc.;
2, organic binder concrete, such as asphalt concrete, polymer concrete.
According to weight:
1, heavy concrete, bulk density 2600 ~ 5500 kg / m 3 or even greater;
2, ordinary concrete, bulk density of 2400 kg / m 3 or so;
3, light concrete, light-weight aggregate concrete, porous concrete, large-pore concrete, etc. with a bulk density of 500-1900 kg/m3.
According to use function points:
Structural concrete, thermal insulation concrete, decorative concrete, waterproof concrete, refractory concrete, hydraulic concrete, marine concrete, road concrete, radiation protection concrete, etc.
According to the construction process:
Centrifugal concrete, vacuum concrete, grouted concrete, shotcrete, RCC, extruded concrete, pumped concrete, ceramsite concrete, etc.
Common grade of cement concrete
1, C20
Water: 175kg Cement: 343kg Sand: 621kg Stone: 1261kg
The mix ratio is: 0.51:1:1.81:3.68
2, C25
Water: 175kg Cement: 398kg Sand: 566kg Stone: 1261kg
The mix ratio is: 0.44:1:1.42:3.17
3, C30
Water: 175kg Cement: 461kg Sand: 512kg Stone: 1252kg
The mix ratio is: 0.38:1:1.11:2.72
What are the types of concrete above and the common grades of cement concrete? Here's a brief introduction here, and I hope to help you. For more information, please visit this website. Stay tuned.
cement
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