Search results for " PBO fiber."

showing 2 items of 2 documents

Experimental results of RC columns strengthnened with Fiber Reinforced Cementitious Mortars

2012

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 …

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
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PBO textile embedded in FRCM for confinement of r.c. columns

2014

Results of experimental tests on two reinforced concrete columns confined with PBO-FRCM jacketing subject to axial load and bending moments are presented, showing the effectiveness of the confinement system. Comparison of test results against theoretical results derived by a fiber model stress the ability of the confinement system to enhance both strength and deformation capacity of the confined concrete

Settore ICAR/09 - Tecnica Delle Costruzionir.c. confinement flexural ductility FRCM PBO fiber.
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