6533b82afe1ef96bd128c970

RESEARCH PRODUCT

Experimental results of RC columns strengthnened with Fiber Reinforced Cementitious Mortars

P. ColajanniF. De DomenicoN. MaugeriAntonino RecuperoNino SpinellaG. Mantegazza

subject

Cementitious matrices; fibre reinforced; PBO fibres; RC columns; Repair; RetrofittingSettore ICAR/09 - Tecnica Delle CostruzioniRetrofittingCementitious matricesfibre reinforcedConcrete confinement FRCM PBO fiber experimental uniaxial stress-strain lawPBO fibresRC columnsRepair

description

The structural behaviour of reinforced concrete columns strengthened with a system made up of fibre nets embedded in an inorganic stabilized cementitious matrix was investigated. Specimens with circular and square cross-section were cast and subjected to monotonic uniaxial compression to investigate the efficiency of a Polypara-phenylene-benzo-bisthiazole (PBO) Fibre Reinforced Cementitious Mortars (FRCM) system in increasing both carrying capacity and ductility. The experimental results show that confinement with PBO fibre produced a noticeable increment in strength and ductility, though the low mechanical ratios of fibre considered were not always able to ensure hardening behaviour up to rupture.

yearjournalcountryeditionlanguage
2012-01-01
http://hdl.handle.net/10447/113231