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Study on Constructability of PVA Short Fiber Reinforced Concrete

Publication year Port and Airport Research Institute Technical Note 1087 2004.09
Author(s) Hajime ITO,Mitsuyasu IWANAMI,Hiroshi YOKOTA
Department
/Divison
Geotechnical and Structural Engineering Department Structural Mechanics Division
Executive Summary

Steel reinforcement is generally embedded in concrete for preventing concrete members from failing brittlely in shear or tension forces. However, the reinforcement may cause localization of cracks and stress concentration because it is located linearly in concrete. To overcome the problem,mixing PVA short fibers with concrete is focused in this study to achieve ductile concrete members. Improvement of structural performance of concrete members supplementarily reinforced by PVA short fibers has been experimentally confirmed by the authors. For ensuring the performance improvement, it is prerequisite to confirm the constructability of PVA short fiber reinforced concrete such as mixing, transporting, casting, curing, etc.
 This paper describes the results of experimental investigation into the constructability focusing on the differences between PVA short fiber reinforced concrete and normal concrete. Several requirements were proposed in this study for producing, transporting, and casting PVA short fiber reinforced concrete to achieve the required structural performance.

PDF File /en/pdf/en/no1087.pdf