如果我们将聚丙烯短纤维应用在建筑行业当中的话，那么混凝土裂缝的收缩性会得到良好的帮助，而且还可以避免砂浆出现裂缝问题。
If we use polypropylene staple fiber in the construction industry, then the shrinkage of concrete cracks will be a good help, but also to avoid cracks in mortar.
在纤维端部存在高切变应力视为导致产生裂缝的因素。
The occurrence of high shear stress at the fibre end is a factor which is expected to lead to crack generation .
经分析裂缝成因和特点，决定采用碳纤维布进行局部修复和加固补强。
After crack causes and characteristics being analyzed, carbon fiber cloth is used for local repair and reinforcement.
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