Experimental and Numerical Investigation on the Steel Reinforced Grout (SRG) Composite-to-Concrete Bond
In the paper, the bond between a composite strengthening system consisting of steel textiles embedded into an inorganic matrix (steel reinforced grout, SRG) and the concrete substrate, is investigated. An experimental investigation was carried out on medium density SRG specimens; direct shear tests...
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| Format: | Article |
| Language: | English |
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MDPI AG
2020-12-01
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| Series: | Journal of Composites Science |
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| Online Access: | https://www.mdpi.com/2504-477X/4/4/182 |
| _version_ | 1797545722447396864 |
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| author | Luciano Ombres Salvatore Verre |
| author_facet | Luciano Ombres Salvatore Verre |
| author_sort | Luciano Ombres |
| collection | DOAJ |
| description | In the paper, the bond between a composite strengthening system consisting of steel textiles embedded into an inorganic matrix (steel reinforced grout, SRG) and the concrete substrate, is investigated. An experimental investigation was carried out on medium density SRG specimens; direct shear tests were conducted on 20 specimens to analyze the effect of the bond length, and the age of the composite strip on the SRG-to-concrete bond behavior. In particular, the tests were conducted considering five bond length (100, 200, 250, 330, and 450 mm), and the composite strip’s age 14th, 21st, and 28th day after the bonding. Test results in the form of peak load, failure modes and, bond-slip diagrams were presented and discussed. A finite element model developed through commercial software to replicate the behavior of SRG strips, is also proposed. The effectiveness of the proposed numerical model was validated by the comparison between its predictions and experimental results. |
| first_indexed | 2024-03-10T14:19:08Z |
| format | Article |
| id | doaj.art-119824a8330d48b684b3ca5c6b11be91 |
| institution | Directory Open Access Journal |
| issn | 2504-477X |
| language | English |
| last_indexed | 2024-03-10T14:19:08Z |
| publishDate | 2020-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Journal of Composites Science |
| spelling | doaj.art-119824a8330d48b684b3ca5c6b11be912023-11-20T23:29:57ZengMDPI AGJournal of Composites Science2504-477X2020-12-014418210.3390/jcs4040182Experimental and Numerical Investigation on the Steel Reinforced Grout (SRG) Composite-to-Concrete BondLuciano Ombres0Salvatore Verre1Department of Civil Engineering, University of Calabria, 87036 Cosenza, ItalyDepartment of Civil Engineering, University of Calabria, 87036 Cosenza, ItalyIn the paper, the bond between a composite strengthening system consisting of steel textiles embedded into an inorganic matrix (steel reinforced grout, SRG) and the concrete substrate, is investigated. An experimental investigation was carried out on medium density SRG specimens; direct shear tests were conducted on 20 specimens to analyze the effect of the bond length, and the age of the composite strip on the SRG-to-concrete bond behavior. In particular, the tests were conducted considering five bond length (100, 200, 250, 330, and 450 mm), and the composite strip’s age 14th, 21st, and 28th day after the bonding. Test results in the form of peak load, failure modes and, bond-slip diagrams were presented and discussed. A finite element model developed through commercial software to replicate the behavior of SRG strips, is also proposed. The effectiveness of the proposed numerical model was validated by the comparison between its predictions and experimental results.https://www.mdpi.com/2504-477X/4/4/182SRGbondconcretedirect shear testfinite element model |
| spellingShingle | Luciano Ombres Salvatore Verre Experimental and Numerical Investigation on the Steel Reinforced Grout (SRG) Composite-to-Concrete Bond Journal of Composites Science SRG bond concrete direct shear test finite element model |
| title | Experimental and Numerical Investigation on the Steel Reinforced Grout (SRG) Composite-to-Concrete Bond |
| title_full | Experimental and Numerical Investigation on the Steel Reinforced Grout (SRG) Composite-to-Concrete Bond |
| title_fullStr | Experimental and Numerical Investigation on the Steel Reinforced Grout (SRG) Composite-to-Concrete Bond |
| title_full_unstemmed | Experimental and Numerical Investigation on the Steel Reinforced Grout (SRG) Composite-to-Concrete Bond |
| title_short | Experimental and Numerical Investigation on the Steel Reinforced Grout (SRG) Composite-to-Concrete Bond |
| title_sort | experimental and numerical investigation on the steel reinforced grout srg composite to concrete bond |
| topic | SRG bond concrete direct shear test finite element model |
| url | https://www.mdpi.com/2504-477X/4/4/182 |
| work_keys_str_mv | AT lucianoombres experimentalandnumericalinvestigationonthesteelreinforcedgroutsrgcompositetoconcretebond AT salvatoreverre experimentalandnumericalinvestigationonthesteelreinforcedgroutsrgcompositetoconcretebond |