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ZCHG31
ZhongCheng Chemical
ZCHG31
Concrete steel fiber, shear wave fiber, bridge pavement and dam engineering fiber
Steel fiber is a relatively new type of fiber material, which, like ordinary concrete fibers, has mixing, operation, and construction performance. The fibers do not agglomerate in the concrete and are evenly distributed. They can be produced in commercial concrete mixing plants and used for pumping construction. Adding a certain amount of randomly distributed steel fibers to concrete can effectively improve its tensile strength, thereby enhancing its crack resistance and anti-seepage performance.
Shear type steel fiber is a cold-rolled thin steel plate that is cut into steel fibers. Before cutting, a special small longitudinal shearing machine is used to cut the thin cold-rolled coil into strip steel coils. The width of the strip steel coil is the same as the length of the steel fiber, and then the strip steel coil is continuously fed into a rotating tool or a regular punching machine for cutting. The axis of the rotating tool is perpendicular to the feed direction of the thin plate. The raw materials are generally annealed cold-rolled steel plates, and unannealed cold-rolled steel plates can also be used to improve strength.
Product specifications
Chemical name | Shearing Steel Fiber |
Common name | Wave-shaped steel fiber |
Grade | Industrial grade |
Packaging specifications | Cowhide bag，25KG |
Model specifications | End hook type, Shear type |
Executive standards | YB/T151-1999 |
Producer | China |
Quality guarantee period | 12 months |
Product technical indicators
Item | Inspection results |
Character | Shear wave shaped steel fiber |
Length, mm,% | 35.1 |
Diameter, mm,% | 0.89 |
Length to diameter ratio,% | 39.44 |
Tensile strength, MPa, ≥ | 412 |
Bending performance, ≥,% | 99 |
Adhesive sheets, iron filings, impurities, ≤,% | 0.03 |
The functions of Shearing Steel Fiber
Shear corrugated steel fibers are a new type of multiphase composite material formed by mixing randomly distributed short shear corrugated steel fibers into ordinary concrete. These randomly distributed end hook corrugated steel fibers can effectively hinder the expansion of internal microcracks and the formation of macroscopic cracks in concrete, significantly improving the tensile, bending, impact and performance of concrete, and have good ductility.
Application of Shearing Steel Fiber
Usage and precautions
1. Dosage: Volume dosage 0.5-2%, i.e. 39-156kg/m3
2. Material requirements: Steel fiber reinforced concrete shall not use seawater or sea sand, and the addition of ammonium salts is strictly prohibited
3. Mixing: The workability of steel fiber reinforced concrete can be determined by referring to the slump required for ordinary concrete in similar projects, and the mixing time should be appropriately extended to ensure the uniform dispersion of steel fibers
4. Maintenance: The construction and maintenance process of the concrete after adding fibers is completely the same as that of the concrete without fibers Usage safety: Pay appropriate attention to labor protection to prevent stabbing and splashing into the eyes
