The effects of ZnO2 nanoparticles on properties of concrete using ground granulated blast furnace Slag as binder
In the present study, flexural strength together with pore structure, thermal behavior and microstructure of concrete containing ground granulated blast furnace slag with different amount of ZnO2 nanoparticles has been investigated. Portland cement was replaced by different amounts of ground granula...
| 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)
2011-09-01
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| Series: | Materials Research |
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| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392011000300004 |
| _version_ | 1828485180108570624 |
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| author | Ali Nazari Shadi Riahi |
| author_facet | Ali Nazari Shadi Riahi |
| author_sort | Ali Nazari |
| collection | DOAJ |
| description | In the present study, flexural strength together with pore structure, thermal behavior and microstructure of concrete containing ground granulated blast furnace slag with different amount of ZnO2 nanoparticles has been investigated. Portland cement was replaced by different amounts of ground granulated blast furnace slag and the properties of concrete specimens were investigated. Although it negatively impact the properties of concrete, ground granulated blast furnace slag was found to improve the physical and mechanical properties of concrete up to 45 wt. (%). ZnO2 nanoparticles with the average particle size of 15 nm were added partially to concrete with the optimum content of 45 wt. (%) of ground granulated blast furnace slag and physical and mechanical properties of the specimens was measured. ZnO2 nanoparticle as a partial replacement of cement up to 3 wt. (%) could accelerate C-S-H gel formation as a result of increased crystalline Ca(OH)2 amount at the early age of hydration and hence increase flexural strength of concrete. The increased the ZnO2 nanoparticles' content more than 3 wt. (%), causes the reduced the flexural strength because of the decreased crystalline Ca(OH)2 content required for C-S-H gel formation together with unsuitable dispersion of nanoparticles in the concrete matrix. ZnO2 nanoparticles could improve the pore structure of concrete and shift the distributed pores to harmless and few-harm pores. |
| first_indexed | 2024-12-11T09:08:21Z |
| format | Article |
| id | doaj.art-ed504342a2224587b90097a2b65dab8e |
| institution | Directory Open Access Journal |
| issn | 1516-1439 |
| language | English |
| last_indexed | 2024-12-11T09:08:21Z |
| publishDate | 2011-09-01 |
| 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-ed504342a2224587b90097a2b65dab8e2022-12-22T01:13:34ZengAssociação Brasileira de Metalurgia e Materiais (ABM); Associação Brasileira de Cerâmica (ABC); Associação Brasileira de Polímeros (ABPol)Materials Research1516-14392011-09-01143299306The effects of ZnO2 nanoparticles on properties of concrete using ground granulated blast furnace Slag as binderAli NazariShadi RiahiIn the present study, flexural strength together with pore structure, thermal behavior and microstructure of concrete containing ground granulated blast furnace slag with different amount of ZnO2 nanoparticles has been investigated. Portland cement was replaced by different amounts of ground granulated blast furnace slag and the properties of concrete specimens were investigated. Although it negatively impact the properties of concrete, ground granulated blast furnace slag was found to improve the physical and mechanical properties of concrete up to 45 wt. (%). ZnO2 nanoparticles with the average particle size of 15 nm were added partially to concrete with the optimum content of 45 wt. (%) of ground granulated blast furnace slag and physical and mechanical properties of the specimens was measured. ZnO2 nanoparticle as a partial replacement of cement up to 3 wt. (%) could accelerate C-S-H gel formation as a result of increased crystalline Ca(OH)2 amount at the early age of hydration and hence increase flexural strength of concrete. The increased the ZnO2 nanoparticles' content more than 3 wt. (%), causes the reduced the flexural strength because of the decreased crystalline Ca(OH)2 content required for C-S-H gel formation together with unsuitable dispersion of nanoparticles in the concrete matrix. ZnO2 nanoparticles could improve the pore structure of concrete and shift the distributed pores to harmless and few-harm pores.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392011000300004concreteground granulated blast furnace slagZnO2 nanoparticlesflexural strengthTGAXRDpore structure |
| spellingShingle | Ali Nazari Shadi Riahi The effects of ZnO2 nanoparticles on properties of concrete using ground granulated blast furnace Slag as binder Materials Research concrete ground granulated blast furnace slag ZnO2 nanoparticles flexural strength TGA XRD pore structure |
| title | The effects of ZnO2 nanoparticles on properties of concrete using ground granulated blast furnace Slag as binder |
| title_full | The effects of ZnO2 nanoparticles on properties of concrete using ground granulated blast furnace Slag as binder |
| title_fullStr | The effects of ZnO2 nanoparticles on properties of concrete using ground granulated blast furnace Slag as binder |
| title_full_unstemmed | The effects of ZnO2 nanoparticles on properties of concrete using ground granulated blast furnace Slag as binder |
| title_short | The effects of ZnO2 nanoparticles on properties of concrete using ground granulated blast furnace Slag as binder |
| title_sort | effects of zno2 nanoparticles on properties of concrete using ground granulated blast furnace slag as binder |
| topic | concrete ground granulated blast furnace slag ZnO2 nanoparticles flexural strength TGA XRD pore structure |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392011000300004 |
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