Introduction of End Hook Steel Fiber

End hook steel fiber is a kind of fiber cut from thin steel wire of certain strength and diameter. It is straight in the middle and bent into hook shape at both ends. It has a smooth and uniform appearance and is the most common type of steel fiber.

Function of Row Steel Fiber

1. Excellent wear resistance and durability, higher fatigue endurance limit.

2. High ductility and impact resistance.

3. Good dispersion, steel fiber will not ball up in concrete and is evenly distributed.

4. Improve the mechanical properties of concrete such as tensile, bending and shear resistance.

5. The rough and clean surface of steel fiber can be firmly combined with the cement paste in concrete.

6. Compared with traditional reinforced concrete, steel fiber concrete is directly constructed and seamlessly connected to large laser leveling equipment, saving costs.

7. The construction process is simpler, and the construction period is greatly shortened compared to the steel bar scheme.

Application Field of End Hook Steel Fiber

1. Construction engineering: house construction, prefabricated piles, frame nodes, roof waterproofing, underground waterproofing, etc.

2. Industrial floor: cut-slit floor, no-slit floor, seamless floor, pile-supported floor, garage leveling layer, composite floor slab, raft, factory road, pavement, etc.

3. Pipeline engineering: centrifugal tube, vibration and extrusion tube, pump tube, steel-lined steel fiber concrete pressure tube, etc.

4. Highway bridge engineering: box arch bridge arch ring, continuous box beam, bridge deck, etc.

5. Highway pavement and airport bridge deck engineering: highway pavement, highway pavement in frozen areas, airport pavement, etc.

6. Railway engineering: prestressed railway sleepers, double-block railway sleepers, etc.

7. Water conservancy and hydropower engineering: water flow erosion wear parts, gates, gates, ferry, dam anti-seepage panels, etc.

8. Port and marine engineering: steel pipe pile anti-corrosion layer, dock facilities, submarine concrete facilities, etc.

9. Other projects: heavy-load industrial field/warehouse floor, silo, maintenance spinning engineering, underground cables, pipe manhole covers, sewer water grates, etc.

Usage Method of End Hook Steel Fiber

Construction Technical Requirements:

1. The cement grade shall not be lower than 425. The water-cement ratio shall not be greater than 0.5.

2. The diameter length of the coarse aggregate shall not exceed 2/3 of the length of the steel fiber.

3. The volume of steel fiber in steel fiber concrete shall not be less than 0.5%, generally between 0.5-3%, and 1.5%–2.5% is recommended; that is, the dosage range per cubic meter of concrete is: 5-30kg, and 15-25kg is recommended.

4. Sea sand shall not be used in mixing steel fiber concrete, and chloride salt is strictly prohibited.

5. In addition to the above provisions, other materials used in steel fiber concrete shall comply with the provisions on raw materials used in reinforced concrete in the current specifications.

6. The consistency of steel fiber concrete can be determined by referring to the consistency required for ordinary concrete in similar projects. Its slump value can be smaller than the corresponding ordinary concrete requirement.

7. The steel fiber concrete cushion layer and surface layer with flat-head joint structure has no foundation reinforcement layer such as ash soil under the cushion layer and at the same time

When the following conditions are met:

a. The thickness of the cushion layer and surface layer before reduction is not more than 130mm.

b. The thickness of the foundation reinforcement layer is greater than the thickness of the cushion layer. Its thickness can be multiplied by the reduction factor 0.75, but shall not be less than 50mm

Material Discharge Requirements:

Steel fiber and coarse aggregate → stir for 30 seconds, add sand and cement, stir for 30 seconds, add water, stir for 3 minutes

Compacting:

1. When pouring steel fiber concrete, mix and use it, pour continuously, and do not throw away the construction joints before reaching the division joints. It should be vibrated and compacted during pouring.

2. Surface finishing, embossed steel fiber concrete has the characteristics of fine coarse aggregate, large sand rate, and random fiber distribution. It is smoothed mechanically to prevent fiber exposure. The embossing process can also avoid the phenomenon of fiber exposure caused by fuzzing. After 24 hours, it should be maintained in time according to the routine. It should be covered with straw bags in summer and keep warm in winter.

Company Profile

Cabr-Concrete is the global leader in Low-Density Cellular Concrete (LDCC), Celluar Light Concrete (CLC), and advanced engineered foam solutions. Known globally for its commitment to research, innovation, and applied expertise, we have been providing engineered foam solutions since the early 2012’s.

We can supply Concrete Fiber over the world. The company has a professional technical department and quality supervision department, a well-equipped laboratory, and equipped with advanced testing equipment and after-sales customer service center.Send us an email or click on the needed products to send an inquiry.

If you want to know more about End Hook Steel Fiber, please feel free and contact us: sales@cabr-concrete.com

Packaging and Storage of End Hook Steel Fiber

Packaging: Carton or composite packaging paper bag 25kg/box or bag, 1500kg-2000kg per pallet, and can also be produced and packaged according to user requirements.

Payment

T/T, Western Union, Paypal, Credit Card etc.

Shipment

By air, by sea, by express, as customers request.

FAQs of End Hook Steel Fiber

1. Can End Hook Steel Fiber be used in all types of concrete mixes?
   • While generally versatile, the suitability depends on the specific application and mix design. Consultation with a structural engineer or material scientist is recommended to ensure compatibility and effectiveness.
2. What are the typical dosages of End Hook Steel Fiber?
   • Dosages typically range from 30 to 100 kg per cubic meter of concrete, but the exact amount depends on the project requirements and desired performance enhancements.
3. Is there any special handling required when adding End Hook Steel Fiber to concrete?
   • Yes, proper dispersion techniques are crucial. Typically, fibers are added during mixing, ensuring they are evenly distributed to avoid clumping and achieve optimal reinforcement.
4. How does it affect the workability of fresh concrete?
   • The addition of steel fibers can slightly reduce workability due to increased viscosity. However, this can often be mitigated by adjusting the mix proportions or using superplasticizers.
5. Are there any environmental considerations when using End Hook Steel Fiber?
   • While steel fibers themselves are durable and do not degrade, consider the sustainability of the steel production process and the end-of-life disposal of the concrete containing fibers.