Abstract
A new kind of advanced composite reinforcement, basalt fiber reinforced polymer (BFRP) bars, has not yet been widely adopted by design codes/guidelines worldwide, likely due to the lack of reliable long-term performance data. This paper proposed a refined prediction method for the long-term performance of BFRP bars that considers the effects of service year, concrete-wrap, environmental humidity and seasonal temperature fluctuations. According to the available accelerated aging tests data in the literature, the environmental reduction factors (ERFs) for a BFRP bar used as a concrete internal reinforcement in a field environment are predicted. The results showed that the ERF for BFRP bars can be recommended to be 0.84 or 0.72 for an RH < 90% and a moisture saturated environment (RH = 100%), respectively.
Original language | English |
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Pages (from-to) | 1072-1080 |
Number of pages | 9 |
Journal | Construction and Building Materials |
Volume | 155 |
DOIs | |
Publication status | Published - 30 Nov 2017 |
Externally published | Yes |
Keywords
- BFRP bar
- Concrete-wrap
- Durability
- Humidity
- Long-term performance
- Temperature fluctuation
ASJC Scopus subject areas
- Civil and Structural Engineering
- Building and Construction
- General Materials Science