Abstract
In this paper, results from fire resistance experiments on five types of reinforced concrete columns are presented. The variables considered in the study include concrete strength [normal-strength concrete (NSC) and high-strength concrete (HSC)], aggregate type (siliceous and carbonate aggregate), and fiber reinforcement (steel and polypropylene fibers). Data from the study is used to determine the structural behavior of HSC columns at elevated temperatures. A comparison is made of the fire resistance performance of HSC columns with that of NSC and fiber-reinforced HSC columns. The factors that influence the thermal and structural behavior of HSC concrete columns under fire conditions are discussed. The results show that the fire resistance of a NSC column is higher than that of a HSC column. Also, the addition of polypropylene fibers and the use of carbonate aggregate improve fire resistance.
| Original language | English |
|---|---|
| Pages (from-to) | 253-259 |
| Number of pages | 7 |
| Journal | Journal of Structural Engineering |
| Volume | 129 |
| Issue number | 2 |
| DOIs | |
| State | Published - Feb 2003 |
Keywords
- Concrete columns
- Fiber-reinforced materials
- Fire resistance
- High-strength concrete
- Temperature