Toughness indices of steel fiber reinforced concrete at sub-zero temperatures
✍ Scribed by Nemkumar Banthia; Moussa Mani
- Publisher
- Elsevier Science
- Year
- 1993
- Tongue
- English
- Weight
- 640 KB
- Volume
- 23
- Category
- Article
- ISSN
- 0008-8846
No coin nor oath required. For personal study only.
✦ Synopsis
This paper presents some micromechanical and macromechanical test data for steel fiber reinforced concrete at normal (22°C) and at low (-50°C) temperatures. Micromechanical tests were in the form of fiber pull-out tests with the fiber aligned in the direction of the applied pull-out load. In the macromechanical tests, steel fiber reinforced concrete beams were loaded at triple points (4-point loading). Two levels of matrix strength, normal and high, were investigated. Strengths in all cases were higher at -50°C than at 22°C. Toughness at -50°C, on the other hand, was marginally reduced for composites with a normal strength matrix and drastically reduced for those with a high strength matrix.