Bond durability and service life prediction of BFRP bars to steel FRC under aggressive environmental conditions
<p dir="ltr">This study presents an experimental investigation on the bond durability of helically wrapped basalt fiber reinforced polymer (BFRP) bars embedded in plain and steel fiber reinforced concrete (SFRC) under the combined effect of simulated oceanic environment and elevated...
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2021
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| _version_ | 1864513545431941120 |
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| author | Alaa Taha (17302783) |
| author2 | Wael Alnahhal (14152461) |
| author2_role | author |
| author_facet | Alaa Taha (17302783) Wael Alnahhal (14152461) |
| author_role | author |
| dc.creator.none.fl_str_mv | Alaa Taha (17302783) Wael Alnahhal (14152461) |
| dc.date.none.fl_str_mv | 2021-08-01T00:00:00Z |
| dc.identifier.none.fl_str_mv | 10.1016/j.compstruct.2021.114034 |
| dc.relation.none.fl_str_mv | https://figshare.com/articles/journal_contribution/Bond_durability_and_service_life_prediction_of_BFRP_bars_to_steel_FRC_under_aggressive_environmental_conditions/24459103 |
| dc.rights.none.fl_str_mv | CC BY 4.0 info:eu-repo/semantics/openAccess |
| dc.subject.none.fl_str_mv | Engineering Chemical engineering Civil engineering Materials engineering Steel fiber-reinforced concrete Bond durability Durability Basalt FRP bars Bond test |
| dc.title.none.fl_str_mv | Bond durability and service life prediction of BFRP bars to steel FRC under aggressive environmental conditions |
| dc.type.none.fl_str_mv | Text Journal contribution info:eu-repo/semantics/publishedVersion text contribution to journal |
| description | <p dir="ltr">This study presents an experimental investigation on the bond durability of helically wrapped basalt fiber reinforced polymer (BFRP) bars embedded in plain and steel fiber reinforced concrete (SFRC) under the combined effect of simulated oceanic environment and elevated temperatures. A total of sixty-three pullout specimens were tested to study the effect of concrete type (plain and SFRC), immersion temperature (35 °C and 60 °C), immersion duration (30, 60, and 90 days), and fiber volume fraction (<i>V</i><sub><em>f</em></sub>) of steel fibers (0.5% and 1%). The bond durability of the used bars was examined based on the bond strength and mode of failure. The BFRP bars at the interface along the embedment length with concrete were analyzed using scanning electron microscopy. In addition, the BPE and CMR models for bond-slip behavior were calibrated considering the immersion temperature, concrete type, and exposure duration. The experimental results revealed that the pullout specimens with <i>V</i><sub><em>f</em></sub> = 1% showed higher bond durability performance than specimens with <i>V</i><sub><em>f</em></sub> = 0.5%, particularly at high temperatures. Furthermore, the CMR model showed better correlation with the experimental data than the BPE model. Moreover, the 50 years service life prediction showed bond strength retentions of BFRP bars that ranged from 54% to 86% depending on the type of concrete (plain and SFRC), surrounding mean annual temperature (5 °C to 35 °C), and degree of moisture (dry, moist, and moisture saturated).</p><h2>Other Information</h2><p dir="ltr">Published in: Composite Structures<br>License: <a href="http://creativecommons.org/licenses/by/4.0/" target="_blank">http://creativecommons.org/licenses/by/4.0/</a><br>See article on publisher's website: <a href="https://dx.doi.org/10.1016/j.compstruct.2021.114034" target="_blank">https://dx.doi.org/10.1016/j.compstruct.2021.114034</a></p> |
| eu_rights_str_mv | openAccess |
| id | Manara2_7899a79f2160c99749f25a964b0b76c5 |
| identifier_str_mv | 10.1016/j.compstruct.2021.114034 |
| network_acronym_str | Manara2 |
| network_name_str | Manara2 |
| oai_identifier_str | oai:figshare.com:article/24459103 |
| publishDate | 2021 |
| repository.mail.fl_str_mv | |
| repository.name.fl_str_mv | |
| repository_id_str | |
| rights_invalid_str_mv | CC BY 4.0 |
| spelling | Bond durability and service life prediction of BFRP bars to steel FRC under aggressive environmental conditionsAlaa Taha (17302783)Wael Alnahhal (14152461)EngineeringChemical engineeringCivil engineeringMaterials engineeringSteel fiber-reinforced concreteBond durabilityDurabilityBasalt FRP barsBond test<p dir="ltr">This study presents an experimental investigation on the bond durability of helically wrapped basalt fiber reinforced polymer (BFRP) bars embedded in plain and steel fiber reinforced concrete (SFRC) under the combined effect of simulated oceanic environment and elevated temperatures. A total of sixty-three pullout specimens were tested to study the effect of concrete type (plain and SFRC), immersion temperature (35 °C and 60 °C), immersion duration (30, 60, and 90 days), and fiber volume fraction (<i>V</i><sub><em>f</em></sub>) of steel fibers (0.5% and 1%). The bond durability of the used bars was examined based on the bond strength and mode of failure. The BFRP bars at the interface along the embedment length with concrete were analyzed using scanning electron microscopy. In addition, the BPE and CMR models for bond-slip behavior were calibrated considering the immersion temperature, concrete type, and exposure duration. The experimental results revealed that the pullout specimens with <i>V</i><sub><em>f</em></sub> = 1% showed higher bond durability performance than specimens with <i>V</i><sub><em>f</em></sub> = 0.5%, particularly at high temperatures. Furthermore, the CMR model showed better correlation with the experimental data than the BPE model. Moreover, the 50 years service life prediction showed bond strength retentions of BFRP bars that ranged from 54% to 86% depending on the type of concrete (plain and SFRC), surrounding mean annual temperature (5 °C to 35 °C), and degree of moisture (dry, moist, and moisture saturated).</p><h2>Other Information</h2><p dir="ltr">Published in: Composite Structures<br>License: <a href="http://creativecommons.org/licenses/by/4.0/" target="_blank">http://creativecommons.org/licenses/by/4.0/</a><br>See article on publisher's website: <a href="https://dx.doi.org/10.1016/j.compstruct.2021.114034" target="_blank">https://dx.doi.org/10.1016/j.compstruct.2021.114034</a></p>2021-08-01T00:00:00ZTextJournal contributioninfo:eu-repo/semantics/publishedVersiontextcontribution to journal10.1016/j.compstruct.2021.114034https://figshare.com/articles/journal_contribution/Bond_durability_and_service_life_prediction_of_BFRP_bars_to_steel_FRC_under_aggressive_environmental_conditions/24459103CC BY 4.0info:eu-repo/semantics/openAccessoai:figshare.com:article/244591032021-08-01T00:00:00Z |
| spellingShingle | Bond durability and service life prediction of BFRP bars to steel FRC under aggressive environmental conditions Alaa Taha (17302783) Engineering Chemical engineering Civil engineering Materials engineering Steel fiber-reinforced concrete Bond durability Durability Basalt FRP bars Bond test |
| status_str | publishedVersion |
| title | Bond durability and service life prediction of BFRP bars to steel FRC under aggressive environmental conditions |
| title_full | Bond durability and service life prediction of BFRP bars to steel FRC under aggressive environmental conditions |
| title_fullStr | Bond durability and service life prediction of BFRP bars to steel FRC under aggressive environmental conditions |
| title_full_unstemmed | Bond durability and service life prediction of BFRP bars to steel FRC under aggressive environmental conditions |
| title_short | Bond durability and service life prediction of BFRP bars to steel FRC under aggressive environmental conditions |
| title_sort | Bond durability and service life prediction of BFRP bars to steel FRC under aggressive environmental conditions |
| topic | Engineering Chemical engineering Civil engineering Materials engineering Steel fiber-reinforced concrete Bond durability Durability Basalt FRP bars Bond test |