Effect of nano-CuO and fly ash on the properties of self-compacting mortar
This paper presents the fresh and hardened properties of self-compacting mortar (SCM) incorporating nano-CuO (NC) and fly ash (FA). CuO nanoparticles at the rates of 1%, 2%, 3% and 4%, and low-calcium fly ash at the rates of 20%, 25%, and 30% of the binder by weight were considered. Mini slump flow...
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| Format: | Journal Article |
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ELSEVIER
2015
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| Online Access: | http://hdl.handle.net/20.500.11937/21788 |
| _version_ | 1848750688325074944 |
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| author | Khotbehsara, M. Mohseni, E. Yazdi, M. Sarker, Prabir Ranjbar, M. |
| author_facet | Khotbehsara, M. Mohseni, E. Yazdi, M. Sarker, Prabir Ranjbar, M. |
| author_sort | Khotbehsara, M. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | This paper presents the fresh and hardened properties of self-compacting mortar (SCM) incorporating nano-CuO (NC) and fly ash (FA). CuO nanoparticles at the rates of 1%, 2%, 3% and 4%, and low-calcium fly ash at the rates of 20%, 25%, and 30% of the binder by weight were considered. Mini slump flow diameter and mini V-funnel flow time tests were conducted to determine the rheological properties of SCMs incorporating fly ash and nano-CuO. Compressive strength was determined at the ages of 7 days as an early age, 28 days as the standard age and 90 days as a late age. Water absorption, electrical resistivity and rapid chloride permeability tests (RCPT) were also performed to determine the durability properties. The results showed significant improvement in the mechanical properties of the samples incorporating the replacement of cement with a combination of 3% CuO nanoparticles and 25% FA. Chloride permeability and electrical resistivity of the FA blended mixtures improved with the increase of nano-CuO content up to 4%. The SEM micrographs indicated more packed pore structure of the SCMs containing nanoparticles which could lead to increasing the strength and durability of specimens. |
| first_indexed | 2025-11-14T07:40:48Z |
| format | Journal Article |
| id | curtin-20.500.11937-21788 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T07:40:48Z |
| publishDate | 2015 |
| publisher | ELSEVIER |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-217882017-09-13T16:08:11Z Effect of nano-CuO and fly ash on the properties of self-compacting mortar Khotbehsara, M. Mohseni, E. Yazdi, M. Sarker, Prabir Ranjbar, M. Durability Workability - RCPT Electrical resistivity Self-compacting mortar Fly ash CuO nanoparticles Compressive strength This paper presents the fresh and hardened properties of self-compacting mortar (SCM) incorporating nano-CuO (NC) and fly ash (FA). CuO nanoparticles at the rates of 1%, 2%, 3% and 4%, and low-calcium fly ash at the rates of 20%, 25%, and 30% of the binder by weight were considered. Mini slump flow diameter and mini V-funnel flow time tests were conducted to determine the rheological properties of SCMs incorporating fly ash and nano-CuO. Compressive strength was determined at the ages of 7 days as an early age, 28 days as the standard age and 90 days as a late age. Water absorption, electrical resistivity and rapid chloride permeability tests (RCPT) were also performed to determine the durability properties. The results showed significant improvement in the mechanical properties of the samples incorporating the replacement of cement with a combination of 3% CuO nanoparticles and 25% FA. Chloride permeability and electrical resistivity of the FA blended mixtures improved with the increase of nano-CuO content up to 4%. The SEM micrographs indicated more packed pore structure of the SCMs containing nanoparticles which could lead to increasing the strength and durability of specimens. 2015 Journal Article http://hdl.handle.net/20.500.11937/21788 10.1016/j.conbuildmat.2015.07.063 ELSEVIER fulltext |
| spellingShingle | Durability Workability - RCPT Electrical resistivity Self-compacting mortar Fly ash CuO nanoparticles Compressive strength Khotbehsara, M. Mohseni, E. Yazdi, M. Sarker, Prabir Ranjbar, M. Effect of nano-CuO and fly ash on the properties of self-compacting mortar |
| title | Effect of nano-CuO and fly ash on the properties of self-compacting mortar |
| title_full | Effect of nano-CuO and fly ash on the properties of self-compacting mortar |
| title_fullStr | Effect of nano-CuO and fly ash on the properties of self-compacting mortar |
| title_full_unstemmed | Effect of nano-CuO and fly ash on the properties of self-compacting mortar |
| title_short | Effect of nano-CuO and fly ash on the properties of self-compacting mortar |
| title_sort | effect of nano-cuo and fly ash on the properties of self-compacting mortar |
| topic | Durability Workability - RCPT Electrical resistivity Self-compacting mortar Fly ash CuO nanoparticles Compressive strength |
| url | http://hdl.handle.net/20.500.11937/21788 |