Shear behaviour of inorganic polymer concrete beams reinforced with basalt FRP bars and stirrups

Inorganic polymer concrete (IPC) reinforced with basalt fibre (BFRP) was proposed as a promising substitute of conventional for structures to enhance their sustainability and durability. This paper, the first time, presents systematic study, experimental, theoretical numerical, shear behaviour IPC beams BFRP bars stirrups considering effects stirrup spacing (S = 80, 100 150 mm) span-to-depth ratio (? 1.5, 2.0 2.5). Result indicates that all BFRP-IPC fail in result rupture shear-compression failure. Compared S, ? has more pronounced influence on performance beams, maximum reduction ultimate load by 29.4%. The simulation results show good agreement experimental data, while predictions according existing design provisions FRP have discrepancy than 30% experiments due lack consideration ?. Modified equations taking into account effect were then derived used predict capacity which agrees well data an average only around 5%.