Potential advantages of basalt FRP bars compared to carbon FRP bars & conventional steel

IF 1.6 Q3 ENGINEERING, CIVIL Australian Journal of Civil Engineering Pub Date : 2020-09-12 DOI:10.1080/14488353.2020.1816638
M. Zaki, Amira Tobaa, A. Shehata, Farid Mohamed, Ramy Khalef, Yomna Hagras, Reem Abou-Ali, M. Farag, A. Ghaly, Magdi Madi, E. Sayed-Ahmed, Yosra El-Maghraby, M. Abou-Zeid
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引用次数: 9

Abstract

ABSTRACT In this study an attempt is taken to evaluate the performance of basalt FRP bars compared with carbon FRP bars and conventional steel bars. Specimens of reinforced concrete will be casted to fulfil this comparison. These beams will comprise a common top reinforcement, stirrups spacing, and concrete properties. The difference is in the bottom reinforcement where it was once steel, Carbon FRP, Basalt FRP, and a hybrid of Basalt FRP and steel. These beams were tested for their behaviour under a flexural load through a four-point bending test. The remaining specimens were casted as columns with common stirrups spacing, and concrete properties. The behaviour of Basalt FRP, Carbon FRP, and steel reinforcement will be tested upon the application of an axial compressive load. The bonding strength between concrete and the different candidate bars is tested through the bond pull-out test. Furthermore, tests will be conducted on the thermal, chemical, and mechanical properties of the individual bars. This study is expected to yield an evaluation of the main characteristics of the newly developed Basalt FRP bars and an identification of the key differences and limitations of using BFRP in concrete structures in relation to CRFP and traditional steel reinforcement of concrete structure.
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玄武岩FRP筋与碳纤维FRP筋和传统钢材相比的潜在优势
摘要本研究试图对玄武岩FRP筋与碳FRP筋和常规钢筋的性能进行比较。将浇铸钢筋混凝土试样来完成这种比较。这些梁将包括一个共同的顶部加固,箍筋间距,和混凝土性能。不同之处在于底部加固,它曾经是钢,碳FRP,玄武岩FRP和玄武岩FRP和钢的混合物。通过四点弯曲试验测试了这些梁在弯曲荷载下的行为。其余的试件浇铸成柱与共同的马镫间距,和混凝土性能。玄武岩FRP、碳纤维FRP和钢筋的性能将在轴向压缩载荷的作用下进行测试。通过拉拔试验测试混凝土与不同候选钢筋之间的粘结强度。此外,还将对单个棒材的热、化学和机械性能进行测试。本研究预计将对新开发的玄武岩FRP筋的主要特性进行评估,并确定在混凝土结构中使用BFRP筋与CRFP和传统钢筋混凝土结构的主要区别和局限性。
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来源期刊
CiteScore
3.90
自引率
7.70%
发文量
31
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