期刊
CONSTRUCTION AND BUILDING MATERIALS
卷 139, 期 -, 页码 467-489出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.conbuildmat.2017.02.038
关键词
Seawater and sea sand concrete (SWSSC); BFRP; GFRP; Tensile strength; Long-term performance
资金
- Australian Research Council (ARC) through an ARC Discovery Grant [DP160100739]
- Key Project of Chinese Ministry of Education [113029A]
- National Natural Science Foundation of China [51478145]
This paper presents a study on the long-term performance of basalt- and glass-fibre reinforced polymer (BFRP/GFRP) bars in seawater and sea sand concrete (SWSSC) environment. Accelerated corrosion tests were conducted using two types of SWSSC solutions at different pH and temperatures, and for different durations. The tensile tests of pre-exposed bars suggested the GFRP bars to be more durable than BFRP bars, while the Young's modulus of all specimens remained unchanged. Scanning electron microscopy (SEM), X-ray computed tomography (CT) and energy dispersive X-ray spectroscopy (EDS) results were utilized to explain the damage mechanism. The long-term behaviour of BFRP and GFRP bars under the service construction condition was also predicted using Arrhenius degradation theory. (C) 2017 Elsevier Ltd. All rights reserved.
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