Publicação
Development of ductile cementitiuos composites using carbon nanotubes
| Resumo: | Concrete is the primary construction material for civil infrastructures and generally consists of cement, coarse aggregates, sand, admixtures and water. Cementitious materials are characterized by quasi-brittle behaviour and susceptible to cracking [1]. The cracking process within concrete begins with isolated nano-cracks, which then conjoin to form micro-cracks and in turn macro-cracks. Formation and growth of cracks lead to loss of mechanical performance with time and also make concrete accessible to water and other degrading agents such as CO2, chlorides, sulfates, etc. leading to strength loss and corrosion of steel rebars. To improve brittleness of concrete, reinforcements such as polymeric as well as glass and carbon fibers have been used and microfibers improved the mechanical properties significantly by delaying (but could not stop) the transformation of micro-cracks into macro forms [2]. This fact encouraged the use of nano-sized fillers in concrete to prevent the growth of nano-cracks transforming in to micro and macro forms. Nanoparticles like SiO2, Fe2O3, and TiO2 led to considerable improvement in mechanical performance and moreover, nano-TiO2 helped to remove organic pollutants from concrete surfaces [3]. |
|---|---|
| Autores principais: | Rana, Sohel |
| Outros Autores: | Parveen, Shama; Fangueiro, Raúl; Paiva, M. C.; Xavier, José |
| Assunto: | Carbon Nanotubes Engenharia e Tecnologia::Nanotecnologia |
| Ano: | 2015 |
| País: | Portugal |
| Tipo de documento: | comunicação em conferência |
| Tipo de acesso: | acesso restrito |
| Instituição associada: | Universidade do Minho |
| Idioma: | inglês |
| Origem: | RepositóriUM - Universidade do Minho |
| _version_ | 1877775588754718720 |
|---|---|
| author | Rana, Sohel |
| author2 | Parveen, Shama Fangueiro, Raúl Paiva, M. C. Xavier, José |
| author2_role | author author author author |
| author_facet | Rana, Sohel Parveen, Shama Fangueiro, Raúl Paiva, M. C. Xavier, José |
| author_role | author |
| contributor_name_str_mv | RepositóriUM - Universidade do Minho |
| country_str | PT |
| creators_json_txt | [{\"Person.name\":\"Rana, Sohel\"},{\"Person.name\":\"Parveen, Shama\"},{\"Person.name\":\"Fangueiro, Raúl\"},{\"Person.name\":\"Paiva, M. C.\"},{\"Person.name\":\"Xavier, José\"}] |
| datacite.contributors.contributor.contributorName.fl_str_mv | RepositóriUM - Universidade do Minho |
| datacite.creators.creator.creatorName.fl_str_mv | Rana, Sohel Parveen, Shama Fangueiro, Raúl Paiva, M. C. Xavier, José |
| datacite.date.Accepted.fl_str_mv | 2015-01-01T00:00:00Z |
| datacite.rights.fl_str_mv | http://purl.org/coar/access_right/c_16ec |
| datacite.subjects.subject.fl_str_mv | Carbon Nanotubes Engenharia e Tecnologia::Nanotecnologia |
| datacite.titles.title.fl_str_mv | Development of ductile cementitiuos composites using carbon nanotubes |
| dc.contributor.none.fl_str_mv | RepositóriUM - Universidade do Minho |
| dc.creator.none.fl_str_mv | Rana, Sohel Parveen, Shama Fangueiro, Raúl Paiva, M. C. Xavier, José |
| dc.date.Accepted.fl_str_mv | 2015-01-01T00:00:00Z |
| dc.format.none.fl_str_mv | application/pdf |
| dc.identifier.none.fl_str_mv | https://hdl.handle.net/1822/39480 |
| dc.language.none.fl_str_mv | eng |
| dc.rights.none.fl_str_mv | http://purl.org/coar/access_right/c_16ec |
| dc.subject.none.fl_str_mv | Carbon Nanotubes Engenharia e Tecnologia::Nanotecnologia |
| dc.title.fl_str_mv | Development of ductile cementitiuos composites using carbon nanotubes |
| dc.type.none.fl_str_mv | http://purl.org/coar/resource_type/c_5794 |
| description | Concrete is the primary construction material for civil infrastructures and generally consists of cement, coarse aggregates, sand, admixtures and water. Cementitious materials are characterized by quasi-brittle behaviour and susceptible to cracking [1]. The cracking process within concrete begins with isolated nano-cracks, which then conjoin to form micro-cracks and in turn macro-cracks. Formation and growth of cracks lead to loss of mechanical performance with time and also make concrete accessible to water and other degrading agents such as CO2, chlorides, sulfates, etc. leading to strength loss and corrosion of steel rebars. To improve brittleness of concrete, reinforcements such as polymeric as well as glass and carbon fibers have been used and microfibers improved the mechanical properties significantly by delaying (but could not stop) the transformation of micro-cracks into macro forms [2]. This fact encouraged the use of nano-sized fillers in concrete to prevent the growth of nano-cracks transforming in to micro and macro forms. Nanoparticles like SiO2, Fe2O3, and TiO2 led to considerable improvement in mechanical performance and moreover, nano-TiO2 helped to remove organic pollutants from concrete surfaces [3]. |
| dirty | 0 |
| eu_rights_str_mv | restrictedAccess |
| format | conferencePaper |
| id | rum_2bf29057e339475b3dc73ed45ec79697 |
| identifier.url.fl_str_mv | https://hdl.handle.net/1822/39480 |
| inst_facet_str | urn:organizationAcronym:repositorium{{{_:::_}}}Universidade do Minho |
| instacron_str | repositorium |
| institution | Universidade do Minho |
| instname_str | Universidade do Minho |
| language | eng |
| network_acronym_str | rum |
| network_name_str | RepositóriUM - Universidade do Minho |
| oai_identifier_str | oai:repositorium.uminho.pt:1822/39480 |
| organization_str_mv | urn:organizationAcronym:repositorium |
| person_str_mv | Rana, Sohel Parveen, Shama Fangueiro, Raúl Paiva, M. C. Xavier, José |
| publishDate | 2015 |
| repo_facet_str | urn:repositoryAcronym:rum{{{_:::_}}}RepositóriUM - Universidade do Minho |
| reponame_str | RepositóriUM - Universidade do Minho |
| repository_id_str | urn:repositoryAcronym:rum |
| service_str_mv | urn:repositoryAcronym:rum |
| spelling | engporConcrete is the primary construction material for civil infrastructures and generally consists of cement, coarse aggregates, sand, admixtures and water. Cementitious materials are characterized by quasi-brittle behaviour and susceptible to cracking [1]. The cracking process within concrete begins with isolated nano-cracks, which then conjoin to form micro-cracks and in turn macro-cracks. Formation and growth of cracks lead to loss of mechanical performance with time and also make concrete accessible to water and other degrading agents such as CO2, chlorides, sulfates, etc. leading to strength loss and corrosion of steel rebars. To improve brittleness of concrete, reinforcements such as polymeric as well as glass and carbon fibers have been used and microfibers improved the mechanical properties significantly by delaying (but could not stop) the transformation of micro-cracks into macro forms [2]. This fact encouraged the use of nano-sized fillers in concrete to prevent the growth of nano-cracks transforming in to micro and macro forms. Nanoparticles like SiO2, Fe2O3, and TiO2 led to considerable improvement in mechanical performance and moreover, nano-TiO2 helped to remove organic pollutants from concrete surfaces [3].application/pdfporDevelopment of ductile cementitiuos composites using carbon nanotubesRana, SohelParveen, ShamaFangueiro, RaúlPaiva, M. C.Xavier, JoséHostingInstitutionOrganizationalRepositóriUM - Universidade do Minhoe-mailmailto:repositorium@usdb.uminho.ptrepositorium@usdb.uminho.pt20152015-01-01T00:00:00ZHandlehttps://hdl.handle.net/1822/39480http://purl.org/coar/access_right/c_16ecrestricted accessCarbon Nanotubeshttp://www.oecd.org/science/inno/38235147.pdfFields of Science and Technology (FOS)Engenharia e Tecnologia::Nanotecnologia79517 bytesother research producthttp://purl.org/coar/resource_type/c_5794conference paperhttp://purl.org/coar/access_right/c_16ecapplication/pdfhttps://repositorium.uminho.pt/bitstreams/71f410ac-c61c-461d-834d-dfd6fbc11b63/download |
| spellingShingle | Development of ductile cementitiuos composites using carbon nanotubes Rana, Sohel Carbon Nanotubes Engenharia e Tecnologia::Nanotecnologia |
| status | SINGLETON |
| subject.fl_str_mv | Carbon Nanotubes |
| subject.other.fl_str_mv | Engenharia e Tecnologia::Nanotecnologia |
| title | Development of ductile cementitiuos composites using carbon nanotubes |
| title_full | Development of ductile cementitiuos composites using carbon nanotubes |
| title_fullStr | Development of ductile cementitiuos composites using carbon nanotubes |
| title_full_unstemmed | Development of ductile cementitiuos composites using carbon nanotubes |
| title_short | Development of ductile cementitiuos composites using carbon nanotubes |
| title_sort | Development of ductile cementitiuos composites using carbon nanotubes |
| topic | Carbon Nanotubes Engenharia e Tecnologia::Nanotecnologia |
| topic_facet | Carbon Nanotubes Engenharia e Tecnologia::Nanotecnologia |
| url | https://hdl.handle.net/1822/39480 |
| visible | 1 |
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