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Advances in Concrete Construction   Volume 2, Number 4, December 2014, pages 309-324
High performance fibre reinforced cement concrete slender structural walls
N.Ganesan, P.V.Indira and Seena.P

Abstract     [Full Text]
    In the design of reinforced concrete structural walls, in order to ensure adequate inelastic displacement behaviour and to sustain deformation demands imposed by strong ground motions, special reinforcement is considered while designing. However, these would lead to severe reinforcement congestion and difficulties during construction. Addition of randomly distributed discrete fibres in concrete improves the flexural behaviour of structural elements because of its enhanced tensile properties and this leads to reduction in congestion. This paper deals with effect of addition of steel fibres on the behavior of high performance fibre reinforced cement concrete (HPFRCC) slender structural walls with the different volume fractions of steel fibres. The specimens were subjected to quasi static lateral reverse cyclic loading until failure. The high performance concrete (HPC) used was obtained based on the guidelines given in ACI 211.1 which was further modified by prof.Aitcin (1998). The volume fraction of the fibres used in this study varied from 0 to 1% with an increment of 0.5%. The results were analysed critically and appraised. The study indicates that the addition of steel fibres in the HPC structural walls enhances the first crack load, strength, initial stiffness and energy dissipation capacity.
Key Words
    fibres; high performance concrete; slender structural wall; stiffness
N.Ganesan, P.V.Indira and Seena.P: Department of Civil Engineering, National Institute of Technology Calicut, NIT Campus P.O, Pin.673601, Kerala, India

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