PROPERTIES OF POLYPROPYLENE FIBER REINFORCED CONCRETE
PROPERTIES OF POLYPROPYLENE FIBER REINFORCED CONCRETE
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DOI：
10.14359/4439
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发表时间：
1993-11
影响因子：
1.7
通讯作者：
Z. Bayasi;J. Zeng
中科院分区：
文献类型：
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作者：
Z. Bayasi;J. Zeng
报道了原纤化聚丙烯纤维混凝土的新鲜和硬化材料性能的实验研究。纤维长度为1/2和1/4英寸，体积分数为0.1、0.3和0.5%。评估了纤维对混凝土性能的影响。研究的性能包括坍落度、倒坍落锥时间、空气含量、压缩和弯曲行为、抗冲击性和快速氯化物渗透性以及可渗透孔隙的体积百分比。提出了一种表征原纤化聚丙烯纤维混凝土弯曲行为的创新方法。新方法取决于混凝土的峰后抗弯力。对于抗冲击性和弯曲行为，得出的结论是，对于 0.3% 或更少的体积，1/4 英寸长的纤维比 1/2 英寸长的纤维更有效，而对于 0.5% 体积的情况，1/2 英寸长的纤维更有效。
An experimental research investigation of the fresh and hardened material properties of the fibrillated polypropylene fiber reinforced concrete is reported. Fiber lengths were 1/2 and 1/4 inch, and volume fractions were 0.1, 0.3, and 0.5%. Fiber effects on concrete properties were assessed. Properties studied were slump, inverted slump cone time, air content, compressive and flexural behaviors, impact resistance and rapid chloride permeability, and volume percent of permeable voids. An innovative method of characterizing the flexural behavior of fibrillated polypropylene fiber concrete was proposed. The new method was dependent on the post-peak flexural resistance of concrete. For impact resistance and flexural behavior, it was concluded that 1/4-inch-long fibers were more effective than 1/2-inch-long fibers for volumes of 0.3% or less, while 1/2-inch-long fibers were more effective for 0.5% volume.