The fracture energy (GF) of high-strength concretes
β Scribed by G. Giaccio; C. Rocco; R. Zerbino
- Book ID
- 112756608
- Publisher
- Springer
- Year
- 1993
- Tongue
- English
- Weight
- 483 KB
- Volume
- 26
- Category
- Article
- ISSN
- 1871-6873
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This research discusses the effects of both steel fibre and matrix strengths on fracture energy of highstrength concrete. The variables of experimental study were water/cement ratio, steel fibre strength and steel fibre volume fraction. The water/cement ratios of 0.35, 0.45 and 0.55, and steel fibre
Load-deflection curves for a notched beam under three-point load are determined using the Fictitious Crack Model (FCM) and Blunt Crack Model (BCM). Two values of fracture energy G, are used in this analysis: (i) GF obtained from the size effect law and (ii) G, obtained independently of the size effe