new materials thin spraying shotcrete machine advantages

Advantages:

1. Thin support thickness. Conventional shotcrete support thickness is generally 50-150mm, while thin shotcrete support thickness only needs about 5mm.

2. Construction preparation is simple and preparation time is short. Since the thickness of thin shotcrete support is much smaller than that of shotcrete support, the corresponding material preparation and transportation volume are greatly reduced. Under the same support conditions, the weight of thin shotcrete support material is only 7-10% of the weight of shotcrete support material. On the other hand, thin shotcrete support equipment is small in size, light in weight and easy to transport.

3. The spraying speed is fast, the number of operators is small, the impact on excavation is small, and the working hours of shotcrete spraying in tunnel construction are reduced. Only 3 operators are required per shift to easily complete the spraying work in the 300-500m area.

4. Strong bonding force, can quickly and firmly bond rocks, metal materials, plastics, etc.;

5. Good airtightness, can effectively isolate water and prevent gas overflow;

6. The spray layer has good flexibility, high bending and shear strength;

7. No dust and low rebound rate during spraying construction;

8. The material is non-toxic and odorless pure powder, easy to construct, flame retardant, anti-static, safe and environmentally friendly;

9. Good economy. Although the price of thin spraying support materials is higher than that of other support materials, the total cost is still lower because the use of thin spraying support materials is small, the preparation work is simple, the number of operators is small, the construction speed is faster.

10. The pneumatic spraying machine is powered by air source and does not require power supply, which reduces the investment in large equipment, saves costs, and the construction is safe and reliable.