Influence of HPFRCC compressive strength and confinement on concrete

    Dinesh Kumar Affiliation
    ; Mykolas Daugevičius Affiliation


The article analyses behavior of compressed concrete cylinders which were strengthened with external high performance fiber reinforced cementitious composite (HPFRCC) layer. Two different HPFRCC materials were used for the strengthening, which differed in fiber type. Two different types of loading were applied as well. The load was transferred through the whole cross section of the strengthened element and through the core – internal concrete. Loading through the whole cross section allows to validate the mixture law. Loading through the internal concrete allows to investigate the confinement effect. Comparison of theoretically calculated and experimental strength shows that mixture law and confinement effect is valid. Confinement by HPFRCC allowed to increase the strength of concrete about 4 times, but the ultimate strain remains similar. The strength of elements loaded through the whole surface has increased much more and additionally the ultimate strain has increased too.

Keyword : concrete, strengthening, HPFRCC, confinement, compressive strength

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Kumar, D., & Daugevičius, M. (2019). Influence of HPFRCC compressive strength and confinement on concrete. Engineering Structures and Technologies, 11(2), 50-56.
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Jul 8, 2019
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