Influence of HPFRCC compressive strength and confinement on concrete

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 w...

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Main Authors: Dinesh Kumar, Mykolas Daugevičius
Format: Article
Language:English
Published: Vilnius Gediminas Technical University 2019-07-01
Series:Engineering Structures and Technologies
Subjects:
Online Access:https://journals.vgtu.lt/index.php/EST/article/view/10679
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author Dinesh Kumar
Mykolas Daugevičius
author_facet Dinesh Kumar
Mykolas Daugevičius
author_sort Dinesh Kumar
collection DOAJ
description 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.
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spelling doaj.art-8530fcc72755484092b957517dced5bb2022-12-21T18:27:48ZengVilnius Gediminas Technical UniversityEngineering Structures and Technologies2029-882X2029-88382019-07-01112505610.3846/est.2019.1067910679Influence of HPFRCC compressive strength and confinement on concreteDinesh Kumar0Mykolas Daugevičius1Vilnius Gediminas Technical University, Saulėtekio al., LT-10223, Vilnius, LithuaniaVilnius Gediminas Technical University, Saulėtekio al., LT-10223, Vilnius, LithuaniaThe 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.https://journals.vgtu.lt/index.php/EST/article/view/10679concretestrengtheninghpfrccconfinementcompressive strength
spellingShingle Dinesh Kumar
Mykolas Daugevičius
Influence of HPFRCC compressive strength and confinement on concrete
Engineering Structures and Technologies
concrete
strengthening
hpfrcc
confinement
compressive strength
title Influence of HPFRCC compressive strength and confinement on concrete
title_full Influence of HPFRCC compressive strength and confinement on concrete
title_fullStr Influence of HPFRCC compressive strength and confinement on concrete
title_full_unstemmed Influence of HPFRCC compressive strength and confinement on concrete
title_short Influence of HPFRCC compressive strength and confinement on concrete
title_sort influence of hpfrcc compressive strength and confinement on concrete
topic concrete
strengthening
hpfrcc
confinement
compressive strength
url https://journals.vgtu.lt/index.php/EST/article/view/10679
work_keys_str_mv AT dineshkumar influenceofhpfrcccompressivestrengthandconfinementonconcrete
AT mykolasdaugevicius influenceofhpfrcccompressivestrengthandconfinementonconcrete