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钢纤维混凝土是在普通混凝土中掺入针状的钢材,即钢纤维,其截面一般为0.05～0.3mm~2,长20～40mm。断面形状近似四边形、圆形或三角形。按制造方法分类,钢纤维有用钢丝切断而成的切丝纤维,蒲钢板剪切的剪断纤维,厚钢板切削的切削纤维和由熔钢直接抽丝的抽丝纤维等四种。国外一般由工厂或钢厂生产,包装成箱出售。钢纤维混凝土是将钢纤维以随机配向状态均匀地分散在混凝土中的一种新型复合材料。钢纤维用量一般为混凝土体积的1～2％,重量约为80～150
Steel fiber reinforced concrete is a needle-shaped steel material, ie, steel fiber, which is generally used in ordinary concrete. Its cross-section is generally 0.05 to 0.3 mm 2 and length 20 to 40 mm. The shape of the section is approximately a quadrangle, a circle, or a triangle. According to the classification of manufacturing methods, there are four kinds of shredded fibers cut from steel wire with steel wire, sheared fibers from Pu steel plate, cut fibers from thick steel plate and drawn fibers from molten steel. Foreign generally produced by factories or steel mills, packaged into boxes for sale. Steel fiber reinforced concrete is a new type of composite material in which steel fibers are uniformly dispersed in concrete in a random alignment state. The amount of steel fiber is generally 1~2% of the concrete volume and the weight is about 80~150