steel fiber stainless stell fiber melting steel additives for building
USD $1 - $1,000 /Metric Ton
Min.Order:15 Metric Tons
Dalian Bona Biological Technology Co., Ltd.
Steel fiber reinforced concrete is mixed in ordinary concrete to the distribution of the short steel fiber formed by a new type of multiphase composite materials.These disorderly to the distribution of steel fiber can effectively prevent the expansion of the internal micro cracks of concrete and the formation of macroscopic fracture, significantly improve the concrete tensile, bending, impact and fatigue resistance, good ductility.
Fiber volume fraction of steel fiber reinforced concrete rate is between 1% - 2%, as compared with ordinary concrete, the tensile strength increased by 40% - 80%, the flexural strength increased by 60% - 120%, shear strength increased by 50% 100%, increase the compressive strength is small, generally between 0-25%, but the compressive toughness is improved to a great extent.
Steel fiber is a kind of new, high performance steel fiber varieties.Steel fiber concrete mixture ratio design method of roughly the same as the ordinary concrete, the difference is: the strength of the double control standard (compressive strength and flexural strength);Steel fiber content is determined according to the design requirements of flexural strength;Units of water and sand ratio is related to fiber content, each adding 0.5% (volume fraction) steel fiber, unit water consumption increase 6 kg, sand ratio increased by 2%.Steel fiber reinforced concrete with ordinary concrete as the stirring, performance, operation and construction will not knot ball fiber in concrete, uniform distribution, is in commercial concrete mixing plant production and can be used for pumping construction.
End hook steel fiber technology parameters
| At the same level of ordinary concrete | Steel Fiber Reinforced Concrete | growth rate |
C30(RC) | C30(SFRC) | ( % ) | |
| 3.5MPa | 5.39-7MPa | 54-100 |
Compressive strength | 31.2MPa | 32.5-40MPa | 4.4-28.2 |
ultimate bending strength | 5.5MPa | 9.18-13.75MPa | 67-520 |
| 4.88MPa | 7-8Mpa | 43-100 |
first-crack strength | 8.85N.m | 23-53N.m | 160-500 |
impact fatigue limit | 5.96/cm2 | 53.3-91/m2 | 8-15 Time |
Impervious grades | P4 | P6~p12 | 0.5 ~ 2.5 |
Steel fiber concrete has been widely used in highways, airports, Bridges, tunnels, culverts, the culvert, port, Marine engineering, water conservancy and hydropower engineering, municipal engineering, water, swimming pools, sewage treatment plant, embankment slope protection, explosion-proof turn facilities, mine, pile cap pile tip, rail, sleeper, parking lot, grain depot, metallurgy refractory, the framework of military engineering, all kinds of industrial and civil construction and other seismic structure, seismic node rigid waterproof roof, basement, industrial workshop floor, concrete manhole cover.Suitable for tensile, shear, bending strength and crack resistance, impact resistance, fatigue resistance, seismic and antiknock performance requirements of high structural engineering or local area