增强材料用钢纤维　松承长期供应

钢纤维简介

      钢纤维是世界上广泛应用的一种混凝土加强材料。外观：光滑、明亮。与普通的混凝土相比，加入钢纤维的混凝土其抗压强度、拉伸强度、抗弯强度、冲击强度、韧性、磨损、抗裂、冲击韧性等性能均得到较大提高，并可以适当减少原结构配筋。钢纤维主要作用是阻碍混凝土内部微裂缝的扩展和阻滞宏观裂缝的发生和发展。在受荷（拉、弯）初期，水泥基料与纤维共同承受外力，当混凝土开裂后，横跨裂缝的纤维成为外力的主要承受者。因此钢纤维混凝土与普通混凝土相比具有一系列优越的物理和力学性能。钢纤维混凝土广泛用于桥梁、建筑、机场跑道、核电站、隧道、管道、水电站、港口码头、海洋工程、火箭发射基地等工程。

Steel fiber is widely used in the world of a concrete strengthening material. Appearance: smooth and bright. Compared with ordinary concrete, adding steel fiber concrete compressive strength, tensile strength, bending strength, impact strength, toughness, wear, crack resistance, impact toughness and other properties were improved greatly, and can decrease the original structure reinforcement. Main effect of steel fiber is the expansion of the internal micro cracks in concrete and block macroscopic crack occurrence and development. At the initial stage of the lotus (tensile, bending) the cement binders with fiber under external force, after concrete cracking, across the fracture of fibers become the main force to bear. So steel fiber reinforced concrete and ordinary concrete compared with a series of excellent physical and mechanical properties. Steel fiber reinforced concrete is widely used in Bridges, buildings, airport runway, tunnel, nuclear power plants, pipelines, hydropower station, port terminals, Marine engineering, rocket launch base and so on.

 

钢纤维分类

      1.按外形划分有：平直形钢纤维、压棱形钢纤维、波形钢纤维、弯钩形钢纤维、大头形钢纤维、双尖形钢纤维、集束钢纤维等等。

      2.按截面形状划分有：圆形、矩形、槽型、不规则性

      3.按生产工艺划分有：切断钢纤维(用细钢丝切断);剪切钢纤维(用薄钢板、带钢剪切);铣削型钢纤维(用厚钢板或钢锭切削);熔抽钢纤维(用熔融钢水抽制)。较有前途的是溶抽钢纤维，价格较低

      4.按材质划分有：普碳钢纤维(抗拉强度一般在3002500MPa);不锈钢纤维(按材质有304,310,330,430,446等);其他金属纤维(铝纤维、铜纤维、钛纤维以及合金纤维)。

      5.按表面涂覆状态划分有：无涂覆层，表面涂环氧树脂，镀锌等。工业上大量使用的是无涂覆层的普通钢纤维。

      6.按施工工艺分类有：喷射用、浇注用。

      7.按直径尺寸分类有：普通钢纤维(直径d>0.08mm);超细钢纤维(直径d0.08mm);超细钢纤维主要用于增强塑料及石棉摩擦材料。

Manner according to the shape classification are: flat steel fiber, pressure prismatic steel fiber, corrugated steel fiber, curved hook steel fiber, big head shape steel fiber, double pointed steel fiber, cluster steel fiber and so on.

2.) the cross section shape: round, rectangular, groove type, irregularity

3.) the production process are: to cut off the steel fiber with thin wire (cut); The shear steel fiber (with thin plates, strip steel shear); Milling steel fiber (with thick plates or steel cutting); Melt pumping steel fiber (molten steel and drawing). The most promising is pumping steel fiber, the lowest price

4. According to the material division: carbon-steel fiber (tensile strength is in commonly 300 300 mpa); Stainless steel fiber (according to the material 346, etc.); Other metal fibre (aluminum fiber, copper fiber, titanium and alloy).

5.) the state of the surface coating are: no coating layer, epoxy resin coating, galvanized, etc. Is widely used in industry is no ordinary steel fiber coating layer.

6. According to the construction technology of classification are: injection in, pouring in.

But according to the size of diameter of classification are: ordinary steel fiber diameter (d > 0.08 mm); Ultrafine steel fiber diameter (d) 0.08 mm or less; Ultrafine steel fiber is mainly used for reinforced plastic and asbestos friction material.

 

钢纤维特性

      １．收缩性能明显改善；裂缝的控制；钢纤维对混凝土结构的加固是三维全截面的、整体的、且各向同性的，在混凝土中无论哪个部位，钢纤维都能起到加固作用，能充分控制地坪裂缝的宽度。   

      ２．具有较高的抗拉、抗弯、抗剪和抗扭强度；由于钢纤维本身具有很高的抗拉强度（大于100MPa），及两端弯钩保证钢纤维与混凝土有效锚固，在混凝土中有效传送与分配应力，使裂缝化解为散置的微细裂缝。用钢纤维加固的地坪，其裂缝宽度将远小于钢筋混凝土地坪裂缝宽度。        

      ３．具有卓越的抗冲击性能；由于钢纤维提高了混凝土板的韧度和延性，将混凝土材料性质由原来的脆性变为柔性，因而在控制混凝土变形产生的裂缝方面，钢纤维的增强效果好。

      ４．耐久性能显着提高，混凝土耐久性有效改善。可提高其抗冲击性，耐磨性及疲劳强度和韧性。减少冲击和摩擦所产生的表面损失。

      ５．抗疲劳性能显着提高；对大幅度温度变化具有较佳抗力：混凝土在温度骤然上升和下降的情况下会产生剥落现象，钢纤维和混凝土具有很强的握裹力，故可以阻止此现象的发生。

1. The shrinkage performance improved significantly; Crack control; Steel fiber on concrete structure reinforcement is the three dimensional whole cross section, the overall and isotropic, regardless of which part in the concrete, steel fiber can reinforce effect, can control the width of the floor cracks.

2. High tensile, bending, shear and torsion strength; Due to the tensile strength of steel fiber itself has very high (more than 100 mpa), and hook on both ends ensure effective anchorage steel fiber and concrete, effective transmission and distribution of stress in the concrete, dissolve for scattered micro cracks. Steel fiber reinforced ground, its crack width will be far less than the reinforced concrete floor crack width.

3. Has excellent shock resistance; Because of the steel fiber can improve the toughness and ductility of concrete plate, will be from the original concrete material brittleness is a flexible, so in terms of controlling the deformation of concrete cracking, steel fiber enhancement effect is good.

4. The durable performance is significantly improved, effective improve the durability of concrete. Can improve the impact resistance, abrasion resistance and fatigue strength and toughness. Reduce the impact and friction surface generated by the loss.

5. Anti-fatigue performance significantly increased; Have better resistance to temperature changes greatly, the concrete in the case of temperature rising and falling sharply produces peeling phenomenon, has a strong grip of fiber and concrete, so it can prevent the occurrence of this phenomenon.

 

联系方式

上海松承环保科技有限公司

地  址： 中国上海市奉贤区青村镇奉村路

 程帆

手  机： 

Q    Q： 2568620560

邮  箱:  2568620560@qq.com

Shanghai loose on environmental protection technology co., LTD

Address: China Shanghai fengxian green town village road

Contact: Deng Lan

Hand machine:

Q Q: 2568620560

Mail box: 2568620560 @qq.com

 

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