Abstract
Fiber reinforced polymer (FRP) composites have been widely used for strengthening of concrete structures for many years. A critical concern for the FRP strengthening technology is the fire resistance. In this study, phosphate cement-based fiber-reinforced inorganic polymer (FRiP) composites were used to replace conventional fiber-reinforced polymer (FRP) composites to strengthen concrete beams for improved fire resistance. The performances of FRiP composites, FRiP-to-concrete interfaces and FRiP-strengthened concrete beams were examined both before and after fire exposure. It was demonstrated that the phosphate cement-based FRiP composites can significantly enhance the mechanical strength of the concrete beams. In addition, they exhibit much improved fire resistance as compared to the epoxy-based FRP composites.
| Original language | English |
|---|---|
| Pages (from-to) | 755-764 |
| Number of pages | 10 |
| Journal | Construction and Building Materials |
| Volume | 212 |
| DOIs | |
| Publication status | Published - 10 Jul 2019 |
Keywords
- Concrete beam
- Fiber reinforced inorganic polymer (FRiP) composites
- Fiber-reinforced polymer (FRP) composites
- Fire resistance
- Phosphate cement
- Strengthening
ASJC Scopus subject areas
- Civil and Structural Engineering
- Building and Construction
- General Materials Science