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PP Fiber Twisted Bunchy Form

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  • PP Fiber Twisted Bunchy Form

PP Fiber Twisted Bunchy Form

Details

Polypropylene Fiber Twisted Bunchy Form

DESCRIPTION:   

1. This fibre is used to instead of steel fiber for reinforcement to cement concrete. Compared with steel fiber, it has the advantage of easy dispersing and blending, no damage to the mixing equipments, etc  

2.  The rigid polymer fibre is used   polypropylene as its raw material, produced the rough surface  treatment by special parallel thread extruding & twisting process. It has high break strength, better dispersion and strong combining ability, will be widely used to instead of steel fibre to reinforce the cement concrete and crack-resistant. 

 

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:  54mm for common crack-resistant requirement.  

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 PP fiber mesh form with the volume ratio of 1:1(0.9kg fiber-mesh to 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 com-pletely 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. 

 

SPECIFICATION:   

◆Raw Material---------------Polypropylene   

◆Density(g/cm3)-------------0.91    

◆Elastic Modulus (MPa)---5000min.  

◆Length(mm)----------------54mm  

◆Equivalent Dia(mm)------Ø 0.3±0.05  

◆break tensile Ratio(%)----15min.  

◆Break Strength(MPa)-----560min.  

◆Resistance to acid, alkali  strong

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