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Relevant static and dynamic methods for toughness evaluation of fiber reinforced concrete

Relevantne statičke i dinamičke metode za ocenu žilavosti mikroarmiranih betona

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2011
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Authors
Jevtić, Dragica
Zakić, Dimitrije
Savić, Aleksandar R.
Article (Published version)
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Abstract
The paper deals with contemporary methods and relevant technical regulation in the field of toughness testing and evaluation of fiber-reinforced cement composites subjected to specific static loads (flexural and wedge-splitting tests), as well as to dynamic loads (impact and cyclic fatigue tests). Fibers are usually added to concrete in order to improve some of the composite's physical, mechanical, deformation, rheological and/or technological properties, such as: tensile and flexural strength, impact resistance, shrinkage, fatigue resistance, durability in different environment conditions, etc. To obtain these goals, it is essential to achieve the best possible interaction between the fibers and the cement-based matrix. The improved performance of fiber reinforced concrete is most significant when the enhancement of fracture energy absorption capacity (i.e. improvement of toughness) is concerned. The results obtained during static and dynamic testing of toughness (ductility) parameter...s can be very important, especially in order to compare the properties of different types of fiber reinforced composites, but also to solve specific practical engineering problems.

U radu su prikazane savremene metode i relevantna tehnička regulativa u oblasti ispitivanja i ocene žilavosti mikroarmiranih kompozita izloženih specifičnim statičkim (savijanje i cepanje pomoću klina), kao i dinamičkim opterećenjima (udar i ciklični zamor materijala). Vlakna se obično dodaju betonu u cilju poboljšanja nekih fizičkih, mehaničkih, deformacionih, reoloških i/ili tehnoloških svojstava ovog kompozita, kao što su na primer: čvrstoća pri zatezanju, čvrstoća pri savijanju, udarna otpornost, deformacije skupljanja, otpornost na ciklični zamor, trajnost u različitim uslovima sredine, itd. Da bi se postigli navedeni ciljevi, suštinski je važno ostvariti najbolju moguću interakciju između vlakana i cementne matrice. Poboljšane performanse mikroarmiranih betona su najizraženije u domenu povećanja kapaciteta apsorbovanja energije loma - tj. povećanja žilavosti predmetnih kompozita. Eksperimentalni rezultati dobijeni tokom statičkih i dinamičkih ispitivanja parametara žilavosti (odn...osno duktilnosti) mogu da budu veoma značajni, naročito u cilju poređenja svojstava različitih tipova mikroarmiranih kompozita, ali takođe i u slučaju rešavanja specifičnih inženjerskih problema u praksi.

Keywords:
fiber reinforced concrete / toughness / ductility / parameters / evaluation / fiber-matrix interaction / static and dynamic test methods / mikroarmirani beton / žilavost / duktilnost / parametri / ocena / interakcija između vlakana i matrice / statičke i dinamičke metode ispitivanja
Source:
Materijali i konstrukcije, 2011, 54, 1, 3-27
Publisher:
  • Društvo za ispitivanje i istraživanje materijala i konstrukcija Srbije, Beograd
Funding / projects:
  • Utilization of by-products and recycled waste materials in concrete composites in the scope of sustainable construction development in Serbia: investigation and environmental assessment of possible applications (RS-36017)

ISSN: 0543-0798

[ Google Scholar ]
Handle
https://hdl.handle.net/21.15107/rcub_grafar_357
URI
https://grafar.grf.bg.ac.rs/handle/123456789/357
Collections
  • Radovi istraživača / Researcher's publications
  • Катедра за материјале и конструкције
Institution/Community
GraFar
TY  - JOUR
AU  - Jevtić, Dragica
AU  - Zakić, Dimitrije
AU  - Savić, Aleksandar R.
PY  - 2011
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/357
AB  - The paper deals with contemporary methods and relevant technical regulation in the field of toughness testing and evaluation of fiber-reinforced cement composites subjected to specific static loads (flexural and wedge-splitting tests), as well as to dynamic loads (impact and cyclic fatigue tests). Fibers are usually added to concrete in order to improve some of the composite's physical, mechanical, deformation, rheological and/or technological properties, such as: tensile and flexural strength, impact resistance, shrinkage, fatigue resistance, durability in different environment conditions, etc. To obtain these goals, it is essential to achieve the best possible interaction between the fibers and the cement-based matrix. The improved performance of fiber reinforced concrete is most significant when the enhancement of fracture energy absorption capacity (i.e. improvement of toughness) is concerned. The results obtained during static and dynamic testing of toughness (ductility) parameters can be very important, especially in order to compare the properties of different types of fiber reinforced composites, but also to solve specific practical engineering problems.
AB  - U radu su prikazane savremene metode i relevantna tehnička regulativa u oblasti ispitivanja i ocene žilavosti mikroarmiranih kompozita izloženih specifičnim statičkim (savijanje i cepanje pomoću klina), kao i dinamičkim opterećenjima (udar i ciklični zamor materijala). Vlakna se obično dodaju betonu u cilju poboljšanja nekih fizičkih, mehaničkih, deformacionih, reoloških i/ili tehnoloških svojstava ovog kompozita, kao što su na primer: čvrstoća pri zatezanju, čvrstoća pri savijanju, udarna otpornost, deformacije skupljanja, otpornost na ciklični zamor, trajnost u različitim uslovima sredine, itd. Da bi se postigli navedeni ciljevi, suštinski je važno ostvariti najbolju moguću interakciju između vlakana i cementne matrice. Poboljšane performanse mikroarmiranih betona su najizraženije u domenu povećanja kapaciteta apsorbovanja energije loma - tj. povećanja žilavosti predmetnih kompozita. Eksperimentalni rezultati dobijeni tokom statičkih i dinamičkih ispitivanja parametara žilavosti (odnosno duktilnosti) mogu da budu veoma značajni, naročito u cilju poređenja svojstava različitih tipova mikroarmiranih kompozita, ali takođe i u slučaju rešavanja specifičnih inženjerskih problema u praksi.
PB  - Društvo za ispitivanje i istraživanje materijala i konstrukcija Srbije, Beograd
T2  - Materijali i konstrukcije
T1  - Relevant static and dynamic methods for toughness evaluation of fiber reinforced concrete
T1  - Relevantne statičke i dinamičke metode za ocenu žilavosti mikroarmiranih betona
EP  - 27
IS  - 1
SP  - 3
VL  - 54
UR  - https://hdl.handle.net/21.15107/rcub_grafar_357
ER  - 
@article{
author = "Jevtić, Dragica and Zakić, Dimitrije and Savić, Aleksandar R.",
year = "2011",
abstract = "The paper deals with contemporary methods and relevant technical regulation in the field of toughness testing and evaluation of fiber-reinforced cement composites subjected to specific static loads (flexural and wedge-splitting tests), as well as to dynamic loads (impact and cyclic fatigue tests). Fibers are usually added to concrete in order to improve some of the composite's physical, mechanical, deformation, rheological and/or technological properties, such as: tensile and flexural strength, impact resistance, shrinkage, fatigue resistance, durability in different environment conditions, etc. To obtain these goals, it is essential to achieve the best possible interaction between the fibers and the cement-based matrix. The improved performance of fiber reinforced concrete is most significant when the enhancement of fracture energy absorption capacity (i.e. improvement of toughness) is concerned. The results obtained during static and dynamic testing of toughness (ductility) parameters can be very important, especially in order to compare the properties of different types of fiber reinforced composites, but also to solve specific practical engineering problems., U radu su prikazane savremene metode i relevantna tehnička regulativa u oblasti ispitivanja i ocene žilavosti mikroarmiranih kompozita izloženih specifičnim statičkim (savijanje i cepanje pomoću klina), kao i dinamičkim opterećenjima (udar i ciklični zamor materijala). Vlakna se obično dodaju betonu u cilju poboljšanja nekih fizičkih, mehaničkih, deformacionih, reoloških i/ili tehnoloških svojstava ovog kompozita, kao što su na primer: čvrstoća pri zatezanju, čvrstoća pri savijanju, udarna otpornost, deformacije skupljanja, otpornost na ciklični zamor, trajnost u različitim uslovima sredine, itd. Da bi se postigli navedeni ciljevi, suštinski je važno ostvariti najbolju moguću interakciju između vlakana i cementne matrice. Poboljšane performanse mikroarmiranih betona su najizraženije u domenu povećanja kapaciteta apsorbovanja energije loma - tj. povećanja žilavosti predmetnih kompozita. Eksperimentalni rezultati dobijeni tokom statičkih i dinamičkih ispitivanja parametara žilavosti (odnosno duktilnosti) mogu da budu veoma značajni, naročito u cilju poređenja svojstava različitih tipova mikroarmiranih kompozita, ali takođe i u slučaju rešavanja specifičnih inženjerskih problema u praksi.",
publisher = "Društvo za ispitivanje i istraživanje materijala i konstrukcija Srbije, Beograd",
journal = "Materijali i konstrukcije",
title = "Relevant static and dynamic methods for toughness evaluation of fiber reinforced concrete, Relevantne statičke i dinamičke metode za ocenu žilavosti mikroarmiranih betona",
pages = "27-3",
number = "1",
volume = "54",
url = "https://hdl.handle.net/21.15107/rcub_grafar_357"
}
Jevtić, D., Zakić, D.,& Savić, A. R.. (2011). Relevant static and dynamic methods for toughness evaluation of fiber reinforced concrete. in Materijali i konstrukcije
Društvo za ispitivanje i istraživanje materijala i konstrukcija Srbije, Beograd., 54(1), 3-27.
https://hdl.handle.net/21.15107/rcub_grafar_357
Jevtić D, Zakić D, Savić AR. Relevant static and dynamic methods for toughness evaluation of fiber reinforced concrete. in Materijali i konstrukcije. 2011;54(1):3-27.
https://hdl.handle.net/21.15107/rcub_grafar_357 .
Jevtić, Dragica, Zakić, Dimitrije, Savić, Aleksandar R., "Relevant static and dynamic methods for toughness evaluation of fiber reinforced concrete" in Materijali i konstrukcije, 54, no. 1 (2011):3-27,
https://hdl.handle.net/21.15107/rcub_grafar_357 .

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