Assessment of flexural behaviour of high-strength concrete reinforced with rebars and steel fibres

Author(s): T. Müller, H. Kieslich, K. Holschemacher
Paper category: Symposium
Book title: RILEM-fib-AFGC International Symposium on Ultra-High Performance Fibre-Reinforced Concrete
Editor(s): F. Toutlemonde, J. Resplendino
Print ISBN: 978-2-35158-130-8
e-ISBN: 978-2-35158-131-5
Publisher: RILEM Publications S.A.R.L
Pages: 709 – 720
Total Pages: 12
Language: English

Abstract: 
In this paper the results of a research program focused on the influence of steel fibre types and content as well as different bar reinforcements on flexural tensile strength, fracture behaviour and workability of steel bar reinforced high-strength steel fibre reinforced concrete (HSSFRC) are demonstrated. The parameters which were investigated are in detail the influence of fibre geometry (straight with end hooks, corrugated), tensile strength of fibres (1100 N/mm², 1900 N/mm²) and different steel bar reinforcements (without rebars, 2 Ø 6 mm, 2 Ø 12 mm) in combination with diverse fibre contents (from 20 to 60 kg/m³). The basis for evaluating the efficiency of the different steel fibres together with the reinforcing steel are force-displacement curves of SFRC beams, gained in four point bending tests. Thereby, the average cube concrete compressive strength ranges between 85 and 102 N/mm2. According to the German guideline of “Steel Fibre Reinforced Concrete” [1], beams of 150 x 150 mm cross section with a length of 700 mm were used as specimens.

Online publication: 2014
Publication Type: full_text
Public price (Euros): 0.00