An application of high-performance fiber reinforced cementitious composities for RC beam strengthening

The possibility of using concrete materials with tensile hardening behaviour (High Performance Fiber Reinforced Cementitious Composites, HPFRCC) for strengthening R/C beams is investigated. In order to verify the effectiveness of the proposed solution, full scale tests have been performed on 4.5 m long beams. A beam without any reinforcement and a beam with an ordinary reinforcement ratio equal to 0.03% have been strengthened with a jacket in HPFRCC having a thickness of 40 mm. A third beam with an ordinary rein-forcement ratio and without jacket application has been used as reference specimen. The obtained results show the effectiveness of the proposed technique both at ultimate and serviceability limit states

Strengthening of r/c beams with high performance fiber reinforced cementitious composites

The possibility of using a thin layer of concrete with tensile hardening behavior (High Performance Fiber Reinforced Cementitious Composites, HPFRCC) for strengthening R/C beams is investigated herein. In order to verify the effectiveness of the proposed solution, full scale tests have been performed on 4.55 m long beams. The obtained results show the effectiveness of the proposed technique both at ultimate and serviceability limit states. The experimental results have been modeled by means of numerical FE analysis with a commercial program (DIANA) and of an analytical approach. The comparison of the results allowed several considerations on the effect of a HPFRCC layers on existing R/C beam

Strengthening and repair of RC beams with fiber reinforced concrete

The use of a jacket made of fiber reinforced concrete with tensile hardening behavior for strengthening RC beams is investigated by means of full-scale tests on 4.55 m long beams. A 40 mm jacket of this material was directly applied to the beam surface. Both the strengthening and the repair of RC beams were studied. In particular, in the latter case the beam was initially damaged and eventually repaired. A numerical analysis is also performed in order to better understand the reinforcement behavior. The experimental and numerical results show the effectiveness of the proposed technique both at ultimate and serviceability limit states

An application of high performance fiber reinforced cementitious composites for R/C beams strengthening

The possibility of using concrete materials with tensile hardening behaviour (High Performance Fiber Reinforced Cementitious Composites, HPFRCC) for strengthening R/C beams is investigated. In order to verify the effectiveness of the proposed solution, full scale tests have been performed on 4.5 m long beams. A beam without any reinforcement and a beam with an ordinary reinforcement ratio equal to 0.03% have been strengthened with a jacket in HPFRCC having a thickness of 40 mm. A third beam with an ordinary rein-forcement ratio and without jacket application has been used as reference specimen. The obtained results show the effectiveness of the proposed technique both at ultimate and serviceability limit states

Strengthening of r/c beams with high performance fiber reinforced cementitious composites

The possibility of using a thin layer of concrete with tensile hardening behavior (High Performance Fiber Reinforced Cementitious Composites, HPFRCC) for strengthening R/C beams is investigated herein. In order to verify the effectiveness of the proposed solution, full scale tests have been performed on 4.55 m long beams. The obtained results show the effectiveness of the proposed technique both at ultimate and serviceability limit states. The experimental results have been modeled by means of numerical FE analysis with a commercial program (DIANA) and of an analytical approach. The comparison of the results allowed several considerations on the effect of a HPFRCC layers on existing R/C beam