钢纤维混凝土中钢纤维的种类和特征有哪些?

纯人工自己翻译：
1.The experimental investigations about kinetics of low temperature SHPB of Steel Fiber Reinforced Concrete.
2.Under the -40℃ circumstance,Steel Fiber Reinforced Concrete is the strain rate sensitive material.To each mechanical properties of the Steel Fiber Reinforced Concrete specimens,its dynamic elastic modulus and peak stress all showed a trend of increase with the increase of strain rate.When strain rate is from 65.05s-1~84.01s-1,the peak stress variation of Steel Fiber Reinforced Concrete is the greatest,and this range is the the most sensitive range of Steel Fiber Reinforced Concrete under 40 centigrade the most sensitive range.
3.With the increase of teel fiber content,its peak stress of the Steel Fiber Reinforced Concrete and loss modulus all showed a trend of increase,and the addition of steel fiber on the improvement of the dynamic mechanical properties of concrete have larger increase.But the excessive increase of steel fiber content may not reinforce concrete perfectly,the ideal steel fiber content is 1.5 percent.
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