Structural Synthetic Fibre for Concrete Tunnel Lining
Description:
ELITE Reinforcing
Macro Synthetic Fibre Twist can be 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 equipment, etc
Our
Structural Synthetic Fibre have 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.
Compliance: BS EN 14889 - 2
Brief specification:
| Density (g/cm3) |
0.91 +/- 0.01 |
Raw material |
copolymer |
| Length(mm) |
48mm,54mm or as per request |
Equivalent Dia (mm) |
0.3±0.03 |
| Shape |
twist |
break tensile Ratio(%) |
8-15 |
| Colour |
White or Brown |
Melting point ( C. Deg) |
160-170 |
| Tensile Strength |
>480 MPa |
Water absorbency |
NO |
| Elastic Modulus (mPa) |
>3500 |
Resistance to acid & alkali |
strong |
Packing:
| PP Fiber Shape |
Inner Packing
(PE film bag) |
Outer Packing
(Plastic Woven bag) |
20'gp |
40'HQ |
| twist |
0.5/1.0 kg |
10kg |
5500kg |
12000kg |
| |
Inner Packing
(water Soluble paper bag) |
Outer Packing
(Carton) |
20' Gp |
40' HQ |
| twist |
0.5/1.0 kg |
10kg |
4000kg |
9000kg |
Advantages of Structural Synthetic Fibre
Compared with steel fiber, our fiber Twist has the advantages of corrosion and wear-resistant reducing 50% cost with same volume to steel fiber.
1. Decrease the fragility of high strength concrete;
2. Increase the quality of concrete;
3. Increase the freezing resistance of concrete;
4. Increase the impact resistance of concrete;
5. Increase the durability resistance of cncrete;
6. Increase the fire resistance of concrete.
Applying Instruction of Structural Synthetic Fibre
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, 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.
Applications:
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). Mili-tary 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 Company:
ELITE was established in 2007, has become one of the leading and professional suppliers of many kinds of Concrete Reinforcement Fibers in the world market.
ELITE fibers are made by 100% virgin materials with advanced equipment of yarn and cutting. We have one full set of precise testing instrument and quality inspection team, technology research & Development team.
Elite own a team with 10+ years experience.We know well of Chinese Concrete reinforcement fibers on technical inspection, marketing, transportation.
){kind=link}