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Shear behavior of high‐performance basalt fiber concrete—Part I: Laboratory shear tests on beams with macro fibers and bars
Author(s) -
Mohammadi Mohaghegh Ali,
Silfwerbrand Johan,
Årskog Vemund
Publication year - 2018
Publication title -
structural concrete
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.912
H-Index - 34
eISSN - 1751-7648
pISSN - 1464-4177
DOI - 10.1002/suco.201700208
Subject(s) - materials science , basalt fiber , shear (geology) , composite material , ultimate tensile strength , compressive strength , fiber , direct shear test , structural engineering , shear strength (soil) , geology , engineering , soil science , soil water
This paper presents findings from an experimental study on shear properties of high‐performance concrete beams reinforced with basalt fiber reinforced polymer bars and macrobasalt fibers. The test specimens comprised seven beams for shear testing and five beams for measuring the residual tensile strength of fiber concrete. No stirrups were used in the test beams. As part of the experiments, the compressive strength and bulk electrical resistivity were measured. To assess the influence of fiber dosage on shear capacity of concrete beams, five‐volume fractions of 43 mm macrobasalt fibers were investigated. The experimental results verified the hypothesis that shear capacity of concrete beams is associated with the fiber dosage. Furthermore, the results show a good correspondence with the predictions of Swedish standard (SS 812310:2014) and the fib Model Code 2010 predictions of shear strength of fiber reinforced concrete beams without shear stirrups.