Tunnel steel fiber is a high-strength, high-rigidity, high-temperature resistant, corrosion-resistant, and tough building material with excellent properties. Its unique performance makes it widely applicable in tunnel engineering, especially under complex geological conditions. As a reinforcement material, it significantly improves the strength and stability of concrete, particularly in soft rock and fractured rock layers. When evenly distributed within the concrete, steel fibers can effectively control the deformation of surrounding rocks, prevent collapse, and ensure the stability of the tunnel support structure.
Steel fibers are particularly effective in enhancing the crack resistance of concrete, effectively preventing the expansion of internal microcracks. When small cracks appear on the surface of the concrete, steel fibers provide bridging effects through their unique mechanical properties, preventing further crack propagation. This increases the durability and crack resistance of the concrete, not only enhancing the crack resistance of the support structure but also significantly reducing the risk of crack formation and improving the overall safety of the structure.
In addition, tunnel steel fibers also exhibit excellent impermeability, reducing the erosion of the support structure by groundwater and preventing water from penetrating into the structure. This characteristic is crucial for tunnel engineering because water infiltration not only affects the stability of the support structure but also causes issues such as reinforcement corrosion and concrete spalling, thus shortening the lifespan of the structure. The addition of steel fibers effectively enhances the density and water resistance of the concrete, reducing water erosion and extending the service life of the support structure.
Due to their exceptional durability, tunnel steel fibers can maintain their strength and toughness over long periods in harsh geological and environmental conditions, reducing the frequency of maintenance and repairs. Compared to traditional reinforced concrete support structures, concrete structures reinforced with steel fibers are more durable and better suited to adapt to unpredictable geological environments. This makes tunnel steel fibers an indispensable material in tunnel engineering, providing strong support for the safety, durability, and cost-effectiveness of the project.
|
Product |
Diameter |
Length |
L/D |
Tensile Strength |
PCS/KG |
|
(mm) |
(mm) |
(MPa) |
|||
|
YA-65/35-BG |
0.55 |
35 |
65 |
1300 |
15300 |
|
YA-70/50-BG |
0.7 |
50 |
70 |
1200 |
6600 |
|
YA-80/60-BG |
0.75 |
60 |
80 |
1200 |
4800 |
|
YA-65/50-BG |
0.75 |
50 |
65 |
1200 |
5700 |
|
YA-65/60-BG |
0.9 |
60 |
65 |
1150 |
3300 |
|
YA-50/25-BL |
0.50 |
25 |
50 |
1300 |
25900 |
|
YA-55/30-BL |
0.55 |
30 |
55 |
1250 |
17800 |
|
YA-45/35-BL |
0.75 |
35 |
45 |
1150 |
8200 |
|
YA-50/50-BL |
1.00 |
50 |
50 |
1050 |
3200 |
|
YA-60/60-BL |
1.00 |
60 |
60 |
1050 |
2700 |
|
YA-65/13-CC |
0.2 |
13 |
65 |
2850 |
312000 |
|
YA-45/38-BS |
0.8 |
38 |
45 |
800 |
6600 |
|
YA-45/38-BM |
0.8 |
38 |
45 |
600 |
6600 |
FAQ
Q: What are the main materials for steel fibers?
A: The main materials for steel fibers include carbon steel fibers, stainless steel fibers, and other metal fibers such as aluminum fibers, copper fibers, titanium fibers, and alloy fibers.
Q: What are the main properties of steel fibers?
A: Steel fibers possess excellent properties such as high strength, high toughness, durability, and stability. They can be uniformly dispersed within the base material, improving the overall performance of composite materials. Additionally, steel fibers can be combined with various materials and exhibit good processing characteristics.
Q: How to select high-quality steel fibers?
A: When selecting steel fibers, several factors should be considered: First, choose reputable manufacturers and brands; second, select the appropriate type and specifications based on the specific application; third, focus on quality indicators such as tensile strength and elastic modulus; and fourth, consider the price factor and choose products with a good cost-performance ratio.