Fracture behavior of polymeric fiber reinforced lightweight structural concrete
A study has been made of the effect of short randomly dispersed polypropylene fibers on the fracture behavior of lightweight structural concrete. Using unnotched and precracked beams subjected to bend loading, it was possible to determine the toughness factor TF and to estimate specific J integral p...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Associação Brasileira de Metalurgia e Materiais (ABM); Associação Brasileira de Cerâmica (ABC); Associação Brasileira de Polímeros (ABPol)
2014-12-01
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| Series: | Materials Research |
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| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392014000600029&tlng=en |
| _version_ | 1798019735546232832 |
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| author | Itamar de Freitas Fathi Darwish Marcos Venicius Pereira Katia Allende |
| author_facet | Itamar de Freitas Fathi Darwish Marcos Venicius Pereira Katia Allende |
| author_sort | Itamar de Freitas |
| collection | DOAJ |
| description | A study has been made of the effect of short randomly dispersed polypropylene fibers on the fracture behavior of lightweight structural concrete. Using unnotched and precracked beams subjected to bend loading, it was possible to determine the toughness factor TF and to estimate specific J integral parameters, namely J IC and J MAX corresponding to the onset of fracture initiation and to the attainment of ultimate load, respectively. The results have indicated a considerable improvement in the fracture behavior associated with the presence of fibers. More specifically this improvement was manifested by a 400% increase in both TF and J IC. |
| first_indexed | 2024-04-11T16:45:44Z |
| format | Article |
| id | doaj.art-085efc7c60f14a7bb2bef2dc642cc643 |
| institution | Directory Open Access Journal |
| issn | 1516-1439 |
| language | English |
| last_indexed | 2024-04-11T16:45:44Z |
| publishDate | 2014-12-01 |
| publisher | Associação Brasileira de Metalurgia e Materiais (ABM); Associação Brasileira de Cerâmica (ABC); Associação Brasileira de Polímeros (ABPol) |
| record_format | Article |
| series | Materials Research |
| spelling | doaj.art-085efc7c60f14a7bb2bef2dc642cc6432022-12-22T04:13:35ZengAssociação Brasileira de Metalurgia e Materiais (ABM); Associação Brasileira de Cerâmica (ABC); Associação Brasileira de Polímeros (ABPol)Materials Research1516-14392014-12-011761588159310.1590/1516-1439.287314Fracture behavior of polymeric fiber reinforced lightweight structural concreteItamar de Freitas0Fathi Darwish1Marcos Venicius Pereira2Katia Allende3Universidade Federal FluminenseUniversidade Federal FluminensePontifícia Universidade Católica do Rio de JaneiroUniversidade Federal FluminenseA study has been made of the effect of short randomly dispersed polypropylene fibers on the fracture behavior of lightweight structural concrete. Using unnotched and precracked beams subjected to bend loading, it was possible to determine the toughness factor TF and to estimate specific J integral parameters, namely J IC and J MAX corresponding to the onset of fracture initiation and to the attainment of ultimate load, respectively. The results have indicated a considerable improvement in the fracture behavior associated with the presence of fibers. More specifically this improvement was manifested by a 400% increase in both TF and J IC.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392014000600029&tlng=enlightweight concretefracture initiationJ integraltoughness factorcompressive strength |
| spellingShingle | Itamar de Freitas Fathi Darwish Marcos Venicius Pereira Katia Allende Fracture behavior of polymeric fiber reinforced lightweight structural concrete Materials Research lightweight concrete fracture initiation J integral toughness factor compressive strength |
| title | Fracture behavior of polymeric fiber reinforced lightweight structural concrete |
| title_full | Fracture behavior of polymeric fiber reinforced lightweight structural concrete |
| title_fullStr | Fracture behavior of polymeric fiber reinforced lightweight structural concrete |
| title_full_unstemmed | Fracture behavior of polymeric fiber reinforced lightweight structural concrete |
| title_short | Fracture behavior of polymeric fiber reinforced lightweight structural concrete |
| title_sort | fracture behavior of polymeric fiber reinforced lightweight structural concrete |
| topic | lightweight concrete fracture initiation J integral toughness factor compressive strength |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392014000600029&tlng=en |
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