Civil Tunnels Concrete Reinforcement Fiber Polypropylene For Reinforcing Spray

4, Packing:

5, Applying Instruction:

1, Ration design of the fibre concrete:

Generally the recommended amount to add to the concrete is more than 2.7kg per sqm ( volume ratio is 0.3% ),reinforcement adding

amount is 5.5kg, Compared with adding 47kg of steel fibre, 5.4kg polymer fibre has the same volume ratio to the concrete.
 

2, Length:

48mm or 54mm for common crack-resistant requirement. Other length can as per your request,such as 19mm
 

3, Matching Ratio:

Usually, it is no need to Change the matching ratio of the concrete. Considering the requirement of fissure-resistant, the polymer

fiber is recommend to combine with the polypropylene fiber mesh with the volume ratio of 1:1 ( 0.9kg fiber-mesh per sqm of cement concrete).

4, Mixer Adoption: Double-axle horizontal compelling mixer is priority.
 

5, Mixing process:

Crushed stones, fibers and sands are put into the mixer in succession. After stirring for two minutes,fiber will fully spread and then add

cement and water and stir normally. The addition of materials also can be put into as common concrete, but the stirring time should be

properly prolonged to make fiber completely Mixed.

6, Shaping & Maintenance
 

There is no special requirement, may along the vibrating time for 30s, The maintenance of the fibre concrete should be done same

as the normal concrete.

7,Application:

A). Projects like concrete road, bridge, airport road and factory floor which strictly require cracking resistance. The life span of these

projects will be lengthened for 5-10 years.

B). The walls of tunnels, mines, roofs and reservoir projects with special construction. When using spray technology in concrete

construction, the polypropylene fiber added into the concrete can effectively decrease the spray concrete's deformation rate of the

walls less than 8% and that of the roof less than 12%, and also can reduce the friction. It can improve the constructing efficiency

and working environment and popularize the spray technology.

C). River courses and dams, etc.The polypropylene fiber can improve concrete's resistance to crack and squirt and wear to lengthen

projects' life span.

D). Military defense works, dock banks and piers, etc. This fiber can greatly strengthen the concrete's spurt resistance and heighten

these projects' safety and lengthen their life span.

Our Mainly Product and Production Capacity as below: