研究证明：底层撒布较长钢纤维的聚丙烯腈纤维混凝土梁的弯曲疲劳强度比素混凝土提高15.7％；
The test results show that, the flexural fatigue strength of polyacrylonitrile fiber reinforced concrete beams with bottom layer steel fiber is larger than the plain concrete 15.7% ;
对聚丙烯腈纤维增强水泥砂浆和混凝土的早期阻裂性能进行了试验研究。
Tests of restrained initial shrinkage properties with plain and polyacrylonitrile fiber reinforced concrete and mortar are introduced in this paper.
主要研究了不同弹性模量的钢纤维、聚丙烯纤维和聚丙烯腈纤维混杂对水泥混凝土的干燥收缩性能的影响。
In this paper, the effects of the steel fibers of different elastic modules, polypropylene fibers and polyacrylonitrile fibers on the dry shrinkage of concrete are studied.
聚丙烯纤维不适于大流动性混凝土，对中小流动性的混凝土匀质性改善作用大，聚丙烯腈不宜用于匀质性的改善。
The polypropylene fibre have the better effect to concrete that the flowability is not too big than that is big. The polyacrylonitrile have no use to improve the homogeneity of concrete.
聚丙烯纤维不适于大流动性混凝土，对中小流动性的混凝土匀质性改善作用大，聚丙烯腈不宜用于匀质性的改善。
The polypropylene fibre have the better effect to concrete that the flowability is not too big than that is big. The polyacrylonitrile have no use to improve the homogeneity of concrete.
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