Tests of restrained initial shrinkage properties with plain and polyacrylonitrile fiber reinforced concrete and mortar are introduced in this paper.
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。
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% ;
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 experiment studied the effect of polyester fiber and polyacrylonitrile fiber on asphalt concrete.
试验讨论了聚酯纤维与聚丙烯腈纤维对沥青混合料的路用性能的影响。
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