Flexural strength and behavior of polypropylene fiber reinforced concrete beams

被引：0
作者：
Yao Wu
机构：
[1] Tongji University,State Key Laboratory of Concrete Materials Research
来源：
Journal of Wuhan University of Technology-Mater. Sci. Ed. | 2002年 / 17卷 / 2期
关键词：
polypropylene fiber; mechanical properties; fiber reinforced concrete;
D O I：
10.1007/BF02832623
中图分类号：
学科分类号：
摘要：
The strength and deformation characteristics of polypropylene fiber reinforced concrete (PFRC) beams were investigated by four-point bending procedures in this paper. Two kinds of polypropylene fibers with different fiber contents (0.2%, 0.5%, 1.0% and 1.5%) by volume were used in the beam, which measured 100×100 mm with a span of 300 mm. It was found that the strength of the reinforced concrete beams was significantly decreased, whereas the flexural toughness was improved, compared to those unreinforced concrete beams. Geometry properties and volume contents of polypropylene fiber were considered to be important factors for improving the flexural toughness. Moreever, the composite mechanism between polypropylene fiber and concrete was analyzed and discussed.
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页码：54 / 57
页数：3
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