High temperature behaviour of basalt fibre-steel tube reinforced concrete columns with recycled aggregates under monotonous and fatigue loading

Construction and Building Materials（2023）

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摘要

•Residual mechanical behaviour of RAC and basalt fibre reinforced RAC subjected to high temperature was studied.•Incorporation of inner steel tube and BF improved compressive behaviour of RAC columns.•Temperature of exposure significantly influence residual fatigue behaviour of BSRC and CFRP confined specimens.•Inner steel tube and basalt fibre reinforcements effectively enhance the residual HTE and post-fatigue strength of RAC.

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关键词

Recycled aggregate concrete columns,Basalt fibre,Double-skin steel tube reinforcement,High temperature exposure,CFRP sheets reinforcement

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