The steel fiber is that nowadays the concrete which the countries all over the world generally adopt strengthens materials . It have , resist , split , resist , bludgon performance strong , wear-resisting high kissing person who shut to be kind with cement intensity into, can increase the component intensity , lengthen advantages such as service life ,etc.. The steel fiber divides into and melts releasing type , wire drawing cutting off type , shearing type and cutting type ,etc. because of its different processing production methods. Shear section steel fiber can produce straight to sprain shape , wave shape , end collude shape , bow , compression shape a little now.
     Steel fiber divide into for general carbon steel fiber and special steel fiber because of its different raw materials. It is the raw materials that the steel fiber of general carbon adopts cold-rolled steel bands such as Q195 , Q215 , Q235 ,etc.; The special steel fiber adopts 304
     Contrast forms in fibrous concrete of steel and ordinary concrete mechanics performance ( The data are taken from the construction material laboratory experiment report of Southeast China University)

Diameter(mm)

Length(mm)

L/D

Tensile strength(MPa)

Quantiy(piece/kg)

0.55

33

60

1300

16100

1.0

50

50

1130

3200

0.75

50

67

1230

5700

0.6

33

55

1250

14900

0.9

50

56

1450

3950

0.75

33

44

1230

8600