Sismabeton: a new frontier for ductile concrete
The high ductility of Fiber Reinforced Self-consolidating concrete (called Sismabeton) can be developed not only in tension but also in compression. This aspect is evidenced in the present paper by measuring the mechanical response of normal concrete (NC), plain self-compacting concrete (SC) and Sis...
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| Format: | Article |
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Gruppo Italiano Frattura
2009-10-01
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| Series: | Fracture and Structural Integrity |
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| Online Access: | http://www.gruppofrattura.it/pdf/rivista/numero10/numero_10_art_4.pdf |
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| author | Paolo Vallini Alessandro P. Fantilli Bernardino Chiaia |
| author_facet | Paolo Vallini Alessandro P. Fantilli Bernardino Chiaia |
| author_sort | Paolo Vallini |
| collection | DOAJ |
| description | The high ductility of Fiber Reinforced Self-consolidating concrete (called Sismabeton) can be developed not only in tension but also in compression. This aspect is evidenced in the present paper by measuring the mechanical response of normal concrete (NC), plain self-compacting concrete (SC) and Sismabeton cylindrical specimens under uniaxial and triaxial compression. The post-peak behaviour of these specimens is defined by a non-dimensional function that relates the inelastic displacement and the relative stress during softening. Both for NC and SC, the increase of the fracture toughness with the confinement stress is observed. Conversely, Sismabeton shows, even in absence of confinement, practically the same ductility measured in normal and self-compacting concretes with a confining pressure. Thus, the presence of Sismabeton in compressed columns is itself sufficient to create a sort of active distributed confinement. |
| format | Article |
| id | doaj-art-ece0a2acbe89483e99f0ac0dd5d6f099 |
| institution | Kabale University |
| issn | 1971-8993 |
| language | English |
| publishDate | 2009-10-01 |
| publisher | Gruppo Italiano Frattura |
| record_format | Article |
| series | Fracture and Structural Integrity |
| spelling | doaj-art-ece0a2acbe89483e99f0ac0dd5d6f0992025-01-03T00:39:23ZengGruppo Italiano FratturaFracture and Structural Integrity1971-89932009-10-013102937Sismabeton: a new frontier for ductile concretePaolo ValliniAlessandro P. FantilliBernardino ChiaiaThe high ductility of Fiber Reinforced Self-consolidating concrete (called Sismabeton) can be developed not only in tension but also in compression. This aspect is evidenced in the present paper by measuring the mechanical response of normal concrete (NC), plain self-compacting concrete (SC) and Sismabeton cylindrical specimens under uniaxial and triaxial compression. The post-peak behaviour of these specimens is defined by a non-dimensional function that relates the inelastic displacement and the relative stress during softening. Both for NC and SC, the increase of the fracture toughness with the confinement stress is observed. Conversely, Sismabeton shows, even in absence of confinement, practically the same ductility measured in normal and self-compacting concretes with a confining pressure. Thus, the presence of Sismabeton in compressed columns is itself sufficient to create a sort of active distributed confinement.http://www.gruppofrattura.it/pdf/rivista/numero10/numero_10_art_4.pdfFiber-reinforced concreteself-compacting concreteconfining pressuretriaxial testsfracture toughness |
| spellingShingle | Paolo Vallini Alessandro P. Fantilli Bernardino Chiaia Sismabeton: a new frontier for ductile concrete Fracture and Structural Integrity Fiber-reinforced concrete self-compacting concrete confining pressure triaxial tests fracture toughness |
| title | Sismabeton: a new frontier for ductile concrete |
| title_full | Sismabeton: a new frontier for ductile concrete |
| title_fullStr | Sismabeton: a new frontier for ductile concrete |
| title_full_unstemmed | Sismabeton: a new frontier for ductile concrete |
| title_short | Sismabeton: a new frontier for ductile concrete |
| title_sort | sismabeton a new frontier for ductile concrete |
| topic | Fiber-reinforced concrete self-compacting concrete confining pressure triaxial tests fracture toughness |
| url | http://www.gruppofrattura.it/pdf/rivista/numero10/numero_10_art_4.pdf |
| work_keys_str_mv | AT paolovallini sismabetonanewfrontierforductileconcrete AT alessandropfantilli sismabetonanewfrontierforductileconcrete AT bernardinochiaia sismabetonanewfrontierforductileconcrete |