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dc.contributor.authorRighi, Débora Pedrosopt_BR
dc.contributor.authorCosta, Fernanda Bianchi Pereira dapt_BR
dc.contributor.authorGraeff, Ângela Gaiopt_BR
dc.contributor.authorSilva Filho, Luiz Carlos Pinto dapt_BR
dc.date.accessioned2018-11-08T02:47:01Zpt_BR
dc.date.issued2017pt_BR
dc.identifier.issn1517-7076pt_BR
dc.identifier.urihttp://hdl.handle.net/10183/184484pt_BR
dc.description.abstractThe Engineered Cementitious Composites (ECC) is a special type of High Performance Fibre Reinforced Cementitious Composite (HPFRCC) characterized by a high tensile ductility with a 2% maximum volume of micro fibres. ECC has a tensile strain-hardening performance that leads to multiple cracking behaviour, thus providing the high ductility to the concrete. One of the main applications of ECC is as structural reinforcement in the construction or rehabilitation of rigid and flexible pavements. In order to adapt the ECC to the Brazilian environment, polypropylene fibres have been used instead to PVA fibres. Moreover, rice husk ash (RHA) has also been used as a partial replacement to cement, aiming to produce an environmentally friendly and a more economically viable version of the ECC. This work presents the results obtained for ECC mixtures containing 10%, 20% and 30% (by volume) of non-processed rice husk ash, as a replacement to cement. An experimental study has been carried out to investigate the tensile behavior and durability issues of these ECCs. The results indicate that the use of RHA is technically viable and that the replacement of 30% cement by RHA leads to the most promising performance in terms of high ductility, resistance to crack propagation, decrease in the water absorption and voids content and heat at hydration.en
dc.format.mimetypeapplication/pdfpt_BR
dc.language.isoengpt_BR
dc.relation.ispartofRevista matéria [recurso eletrônico]. Rio de Janeiro, RJ. Vol. 22, n. 2 (2017), artigo e-11849, [9 p.]pt_BR
dc.rightsOpen Accessen
dc.subjectEngineered cementitious compositesen
dc.subjectEngenhariapt_BR
dc.subjectRice husk ashen
dc.subjectMechanical behavioren
dc.subjectDurabilityen
dc.titleTensile behaviour and durability issues of engineered cementitious composites with rice husk ashpt_BR
dc.typeArtigo de periódicopt_BR
dc.identifier.nrb001080051pt_BR
dc.type.originNacionalpt_BR


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