STUDY ON FATIGUE BEHAVIOUR OF BASALT FIBRE REINFORCED POLYMER BARS
V. Pavalan
Research scholar, Department of Structural Engineering, Annamalai University , IN
R. Sivagamasundari
Research scholar, Department of Structural Engineering, Annamalai University , IN
Keywords: ASTM standards, BFRP bars, Steel bars, SEM, Fatigue behaviour
Abstract
Tension-Tension fatigue behaviour of sand-coated basalt fibre reinforced polymer (BFRP) bars was studied in this paper. The fatigue test was carried out at a stress ratio (R), σmin/σmax = 0.1, as per ASTM D3479/D3479M-02 test standard specifications. The loading frequency of this experiment was 5 Hz. The debonding of fibre-matrix interface was observed using scanning electron microscopy (SEM).The experimental test results were presented in the form of S-N curves, showing that the sand-coated BFRP bars have better fatigue performance than conventional steel bars.
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