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Product introduction
Products Specification: Q/320223AAJ001-89 JG-N-20-32/0.4-I
A.Raw material : Ordinary carbon steel
Properties
| Brand | Grade | Chemical compostion % | ||||
| C | Mn | Si ≤ | S | P | ||
| Q195 | — | 0.06~0.12 | 0.25~0.50 | 0.3 | 0.05 | 0.045 |
| Q215 | A | 0.09~0.15 | 0.25~0.55 | 0.3 | 0.05 | 0.045 |
| B | 0.045 | |||||
| Q235 | A | 0.14~0.22 | 0.30~0.65 | 0.3 | 0.05 | 0.045 |
| B | 0.12~0.20 | 0.30~0.70 | 0.045 | |||
| C | ≤0.18 | 0.35~0.80 | 0.04 | 0.04 | ||
| D | ≤0.17 | 0.035 | 0.035 | |||
| Q255 | A | 0.18~0.28 | 0.40~0.70 | 0.3 | 0.05 | 0.045 |
| B | 0.045 | |||||
| Q275 | — | 0.28~0.38 | 0.50~0.80 | 0.35 | 0.05 | 0.045 |
| Note: Q195 Grade A, B content of boiling Manganese steel ≤0.6% | ||||||
| B. Raw material: Stainless steel. | ||||||
| Shape: Bow/Corrugated shape. Length:10~60mm | ||||||
| Shearing Type (Waste package tape and waste shearing) | ||||||
| No. | Type | Model | Length (mm) | Diameter (mm) | Flexural strenght (mpa) | Shape |
| 1 | Shear | Hy-01 | 10-35 | 0.5-1.0 | ≥420 | Corrugated shape |
| 2 | Shear | Hy-02 | 10-35 | 0.6-0.8 | ≥400 | Creasing shape |
| Shearing (Finished products with steel shearing) | ||||||
| No. | Type | Model | Length (mm) | Diameter (mm) | Flexural strenght (mpa) | Shape |
| 1 | Shear | Hy-01 | 10-35 | 0.7 | ≥400 | Corrugated shape |
| 2 | Shear | Hy-02 | 10-35 | 1 | ≥400 | Creasing shape |
| Mix proportion and using method of steel fiber and concrete | ||||||
| A.Mix proportion of steel fiber and concrete | ||||||
| Group | Concrete type | Concreter dosage of each cubic meter(Kg) | ||||
| Cement | Sand | Pebbles | Water | Steel fiber | ||
| I | 425# | 400 | 864 | 1056 | 172 | 78-93 |
| II | 525# | 340 | 836 | 1023 | 187 | |
| B. Steel fiber concrete using method: | ||||||
| 1. Scatter the steel fiber by double vibration with Horizontal and vertical grid; then feed them into blender with belt conveyer. It can also be Horizontal-axis or roller blender. | ||||||
| 2. Dry mix the steel fiber, cement and aggregate, then add water to wet mix them; or add steel fiber when mixing all above-mentioned materials. | ||||||
| 3 .After mixing steel fiber concrete, its uniformity and V should be tested (deviation should not exceed ±10% of mixing requirement. | ||||||
| 4. Cast steel fiber concrete to guarantee the uniformity and continuity of steel fiber distribution. In casting, do not add water because of dry materials. | ||||||
| Twisted steel fiber psycial properties | ||||||
| No. | Fiber Vf(%) | Limit bending strength (Mpa) | Splitting tensile strength (Mpa) | Compressive strength (Mpa) | Bending toughness (N.m) | Elastic modulus (Gpa) |
| 1 | 0 | 4.8 | 2.5 | 31 | 2.7 | 31 |
| 2 | 0.5 | 5.4 | 3.3 | 35.5 | 14 | 31.5 |
| 3 | 1 | 7 | 3.6 | 36 | 24 | 32 |
| 4 | 1.5 | 8.5 | 4.4 | 38 | 36 | 32 |
| 5 | 2 | 9.8 | 5.1 | 40 | 45 | 32.5 |
| Referance data whhen mixing steel fiber into concrete: | ||||||
| Characters of steel fiber concrete | Max. improved effenciency (compared to common concrete) | |||||
| Impluse strength | 40-60 times | |||||
| Crack strength | 2 | |||||
| Tensile strength | 2 | |||||
| Shear strength | 4-6 times | |||||
| Twisting strength | 2 | |||||
| Bending strength | 2 | |||||
| Compressive strength | 0.25 | |||||
| Fatigue strength | About 100 times | |||||
| Wearability | 0.3 | |||||
| Ductility | 2 | |||||
| Sliding resistance | 0.15 | |||||
| Heat resistance | Improved significantly | |||||
| Cold resistance | Improved significantly | |||||
| Using effect: | ||||||
| 1. Compared with common concrete, steel fiber concrete's section thickness cound be less than half of that of common concrete. | ||||||
| 2. It can save 50% of cement, pebbles, sand and other building materials and engineering work. | ||||||
| 3. If choose layered composite (suitable for limited standard height road), usage of steel fiber will be saved 40% ~50%. | ||||||
| 4.When steel fiber concrete is used as road surface, stilling or pool, their shrinking spacing will be improved to 11-13 times ( can be 50-60mm)compared to that of common concrete.) | ||||||
Slit Steel Fibres