Effect of Polyvinyl Alcohol (PVA) Fibre on the Dynamic Properties of Concrete Containing Fly Ash

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Conference Proceeding
Composite Construction in Steel and Concrete VII - Proceedings of the 2013 International Conference on Composite Construction in Steel and Concrete, 2013, pp. 456 - 467
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© ASCE. The object of the present investigation is to study the effect of polyvinyl alcohol (PVA) fibres on dynamic properties of concrete containing fly ash as partial replacement for portland cement. Specimens of different concrete types, with variations in the length of fibers and proportioning, have been investigated to assess the performance of uncoated PVA fibre of two geometric lengths (6 and 12 mm) in concrete. Based on total concrete volume, 2 fibre fractions of 0.25 and 0.5%, were evaluated for their effect on damping ratio, fundamental frequency and dynamic modulus of elasticity of PVA fibre reinforced concretes (FRCs). From the results, it can be stated that although PVA fibre addition in low volume fractions used in this study significantly enhance the mechanical properties of FRC, it has no considerable effect on concrete material and RC beams dynamic characteristics.
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