Effect of carbon nanotubes on the bonding mechanism of non-corrosive reinforcements to concrete
This study aimed to assess the impact of waterborne pre-dispersed multiwall carbon nanotubes (MWCNTs) at a concentration of 0.2 wt % on the bond strength between concrete and non-corrosive reinforcements, including stainless steel (SS), glass fiber reinforced polymers (GFRP), and basalt fiber reinfo...
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| Format: | article |
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2024
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| Online Access: | http://dx.doi.org/10.1016/j.istruc.2024.105952 https://www.sciencedirect.com/science/article/pii/S2352012424001048 http://hdl.handle.net/10576/53924 |
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| _version_ | 1857415086498381824 |
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| author | Alaa, Taha |
| author2 | Alnahhal, Wael Irshidat, Mohammed |
| author2_role | author author |
| author_facet | Alaa, Taha Alnahhal, Wael Irshidat, Mohammed |
| author_role | author |
| dc.creator.none.fl_str_mv | Alaa, Taha Alnahhal, Wael Irshidat, Mohammed |
| dc.date.none.fl_str_mv | 2024-04-17T06:41:46Z 2024-01-30 |
| dc.format.none.fl_str_mv | application/pdf |
| dc.identifier.none.fl_str_mv | http://dx.doi.org/10.1016/j.istruc.2024.105952 Taha, A., Alnahhal, W., & Irshidat, M. (2024, February). Effect of carbon nanotubes on the bonding mechanism of non-corrosive reinforcements to concrete. In Structures (Vol. 60, p. 105952). Elsevier. https://www.sciencedirect.com/science/article/pii/S2352012424001048 http://hdl.handle.net/10576/53924 60 2352-0124 |
| dc.language.none.fl_str_mv | en |
| dc.publisher.none.fl_str_mv | Elsevier |
| dc.rights.none.fl_str_mv | http://creativecommons.org/licenses/by/4.0/ info:eu-repo/semantics/openAccess |
| dc.subject.none.fl_str_mv | Carbon nanotubes Bond Concrete Non-corrosive reinforcements Basalt FRP bars |
| dc.title.none.fl_str_mv | Effect of carbon nanotubes on the bonding mechanism of non-corrosive reinforcements to concrete |
| dc.type.none.fl_str_mv | Article info:eu-repo/semantics/publishedVersion info:eu-repo/semantics/article |
| description | This study aimed to assess the impact of waterborne pre-dispersed multiwall carbon nanotubes (MWCNTs) at a concentration of 0.2 wt % on the bond strength between concrete and non-corrosive reinforcements, including stainless steel (SS), glass fiber reinforced polymers (GFRP), and basalt fiber reinforced polymers (BFRP) bars. Additionally, the study examined the influence of MWCNTs on the compressive and flexural tensile strengths of concrete. Various factors, including the type of reinforcement bar, concrete composition, and surface treatment of fiber-reinforced polymers (FRP) bars, were investigated to analyze their effects on bond behavior and development length. Through testing 30 pullout specimens, parameters including maximum bond strength, normalized bond strength, failure mode, and bar slippage under maximum bond stress were evaluated. Results showed a slight reduction in bond strength, minor improvement in normalized bond strength, increased development length of FRP bars, and decreased reinforcement slippage associated with the ultimate bond stress when MWCNTs were incorporated into the concrete mixture. Furthermore, the study calibrated two established analytical models, namely the CMR and BPE models, to account for the specific properties of the reinforcement bars and concrete materials used. |
| eu_rights_str_mv | openAccess |
| format | article |
| id | qu_f35d40810f98788cf33d56425ea9d11f |
| identifier_str_mv | Taha, A., Alnahhal, W., & Irshidat, M. (2024, February). Effect of carbon nanotubes on the bonding mechanism of non-corrosive reinforcements to concrete. In Structures (Vol. 60, p. 105952). Elsevier. 60 2352-0124 |
| language_invalid_str_mv | en |
| network_acronym_str | qu |
| network_name_str | Qatar University repository |
| oai_identifier_str | oai:qspace.qu.edu.qa:10576/53924 |
| publishDate | 2024 |
| publisher.none.fl_str_mv | Elsevier |
| repository.mail.fl_str_mv | |
| repository.name.fl_str_mv | |
| repository_id_str | |
| rights_invalid_str_mv | http://creativecommons.org/licenses/by/4.0/ |
| spelling | Effect of carbon nanotubes on the bonding mechanism of non-corrosive reinforcements to concreteAlaa, TahaAlnahhal, WaelIrshidat, MohammedCarbon nanotubesBondConcreteNon-corrosive reinforcementsBasaltFRP barsThis study aimed to assess the impact of waterborne pre-dispersed multiwall carbon nanotubes (MWCNTs) at a concentration of 0.2 wt % on the bond strength between concrete and non-corrosive reinforcements, including stainless steel (SS), glass fiber reinforced polymers (GFRP), and basalt fiber reinforced polymers (BFRP) bars. Additionally, the study examined the influence of MWCNTs on the compressive and flexural tensile strengths of concrete. Various factors, including the type of reinforcement bar, concrete composition, and surface treatment of fiber-reinforced polymers (FRP) bars, were investigated to analyze their effects on bond behavior and development length. Through testing 30 pullout specimens, parameters including maximum bond strength, normalized bond strength, failure mode, and bar slippage under maximum bond stress were evaluated. Results showed a slight reduction in bond strength, minor improvement in normalized bond strength, increased development length of FRP bars, and decreased reinforcement slippage associated with the ultimate bond stress when MWCNTs were incorporated into the concrete mixture. Furthermore, the study calibrated two established analytical models, namely the CMR and BPE models, to account for the specific properties of the reinforcement bars and concrete materials used.The financial support provided by Qatar Foundation (GSRA grant no. GSRA7-1-0419-20019 ) and Qatar University (grant no. QUST-1-CENG-2019-26 ). Open Access funding provided by the Qatar National Library .Elsevier2024-04-17T06:41:46Z2024-01-30Articleinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://dx.doi.org/10.1016/j.istruc.2024.105952Taha, A., Alnahhal, W., & Irshidat, M. (2024, February). Effect of carbon nanotubes on the bonding mechanism of non-corrosive reinforcements to concrete. In Structures (Vol. 60, p. 105952). Elsevier.https://www.sciencedirect.com/science/article/pii/S2352012424001048http://hdl.handle.net/10576/53924602352-0124enhttp://creativecommons.org/licenses/by/4.0/info:eu-repo/semantics/openAccessoai:qspace.qu.edu.qa:10576/539242025-05-25T09:31:17Z |
| spellingShingle | Effect of carbon nanotubes on the bonding mechanism of non-corrosive reinforcements to concrete Alaa, Taha Carbon nanotubes Bond Concrete Non-corrosive reinforcements Basalt FRP bars |
| status_str | publishedVersion |
| title | Effect of carbon nanotubes on the bonding mechanism of non-corrosive reinforcements to concrete |
| title_full | Effect of carbon nanotubes on the bonding mechanism of non-corrosive reinforcements to concrete |
| title_fullStr | Effect of carbon nanotubes on the bonding mechanism of non-corrosive reinforcements to concrete |
| title_full_unstemmed | Effect of carbon nanotubes on the bonding mechanism of non-corrosive reinforcements to concrete |
| title_short | Effect of carbon nanotubes on the bonding mechanism of non-corrosive reinforcements to concrete |
| title_sort | Effect of carbon nanotubes on the bonding mechanism of non-corrosive reinforcements to concrete |
| topic | Carbon nanotubes Bond Concrete Non-corrosive reinforcements Basalt FRP bars |
| url | http://dx.doi.org/10.1016/j.istruc.2024.105952 https://www.sciencedirect.com/science/article/pii/S2352012424001048 http://hdl.handle.net/10576/53924 |