IMPORTANCE OF POLYPROPYLENE FIBERS AS A REINFORCEMENT IN CONCRETE

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Authors

BODNÁROVÁ Lenka FIALOVÁ Monika KOPKÁNĚ Daniel MORÁVEK Tomáš SŤAHEL Pavel ČERNÁK Mirko

Year of publication 2012
Type Article in Periodical
Magazine / Source CHEMICKÉ LISTY
MU Faculty or unit

Faculty of Science

Citation
Field Plasma physics
Keywords fiber reinforcement concrete; polypropylene fibers; wettability
Description The main role of dispersed short discrete fibers as a reinforcement for concrete is to prevent formation of shrinkage cracks, their spreading in the structures and increasing resistance of concrete to high temperatures. The plasma treatment of polypropylene (PP) fibers was discussed as a method that leads to the increasing of surface freee energy of polypropylene, accordingly better adhesion between the fibers and cement matrix. The plasma treatment improved the surface wetting properties of PP fibers. The three point bending test confirmed the improving of the mechanical performances of concrete with plasma treated fibers as a reinforcement.
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