期刊
JOURNAL OF ENGINEERING AND TECHNOLOGICAL SCIENCES
卷 53, 期 2, 页码 -出版社
ITB JOURNAL PUBL
DOI: 10.5614/j.eng.technol.sci.2021.53.2.9
关键词
corrosion; cracking; fiber-reinforced concrete; polypropylene fibers; tension stiffening
资金
- Program Penelitian, Pengabdian pada Masyarakat dan Inovasi (P3MI) from Institut Teknologi Bandung
The study found that the addition of fibers significantly increased tension-stiffening effect, but had limited impact on reducing the bond degradation caused by corrosion. Additionally, the addition of polypropylene fibers improved cracking behavior by decreasing crack spacing compared to specimens without fiber addition at the same corrosion level.
This paper focuses on comparing the behavior of RC tension members with and without the addition of polypropylene fibers at various corrosion levels. Eight cylindrical tensile specimens were tested to evaluate their tension-stiffening and cracking behavior. The content of polypropylene fiber added into the concrete mix was the main variable (0.25%, 0.50%, 0.75%, and 1.0% of total volume). The corrosion level was varied from slight (5%), medium (10%) to severe (30%) and, like the other variables, applied only to 1.0% polypropylene fiber-reinforced concrete (PFRC) specimens. The test results showed that the fiber addition significantly increased the tension-stiffening effect but was largely unable to reduce the effect of bond degradation caused by corrosion. Moreover, the addition of polypropylene fibers was able to improve the cracking behavior in terms of crack propagation, as shown by smaller crack spacing compared to the specimen without fiber addition at the same corrosion level.
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