Thermal Effect on Bond Strength of Rubberized Concrete Filled Steel Tubular Sections
This study aims to assess the effect of high temperature on the bond strength of Concrete Filled Steel Tubular (CFST) sections incorporating crumb rubber particles as partial replacement of fine aggregates in concrete core. High daily temperatures; as in hot countries; was considered as well. Push o...
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| Language: | English |
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Gruppo Italiano Frattura
2020-07-01
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| Series: | Fracture and Structural Integrity |
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| Online Access: | https://www.fracturae.com/index.php/fis/article/view/2782/3035 |
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| author | Hesham M. Fawzy Suzan A. A. Mustafa Ahmed E. AbdEl-Badie |
| author_facet | Hesham M. Fawzy Suzan A. A. Mustafa Ahmed E. AbdEl-Badie |
| author_sort | Hesham M. Fawzy |
| collection | DOAJ |
| description | This study aims to assess the effect of high temperature on the bond strength of Concrete Filled Steel Tubular (CFST) sections incorporating crumb rubber particles as partial replacement of fine aggregates in concrete core. High daily temperatures; as in hot countries; was considered as well. Push out tests were conducted on 72 CFST specimens with five different concrete mixes. Prior to these tests, 210 concrete specimens were tested to obtain the mechanical properties of rubberized concrete under high temperature gradients. Some of the tests; on CFST sections or concrete specimens; were tested at the desired high temperature, and some others were tested after cooling down. The main variables considered were the crumb rubber replacement ratio, shape of CFST section (circular or square) and temperature gradient. The test results indicated that high temperature reduces the bond strength between steel tube and rubberized concrete core with small percentage of rubber replacement. Recovery in bond strength was observed when the specimens were cooled down. Circular sections showed higher bond strength and ductility on its square counterpart. |
| format | Article |
| id | doaj-art-6197ce7847c140c79c4764851baa1b06 |
| institution | Kabale University |
| issn | 1971-8993 |
| language | English |
| publishDate | 2020-07-01 |
| publisher | Gruppo Italiano Frattura |
| record_format | Article |
| series | Fracture and Structural Integrity |
| spelling | doaj-art-6197ce7847c140c79c4764851baa1b062025-02-03T10:30:50ZengGruppo Italiano FratturaFracture and Structural Integrity1971-89932020-07-01145335337110.3221/IGF-ESIS.53.2810.3221/IGF-ESIS.53.28Thermal Effect on Bond Strength of Rubberized Concrete Filled Steel Tubular SectionsHesham M. FawzySuzan A. A. MustafaAhmed E. AbdEl-BadieThis study aims to assess the effect of high temperature on the bond strength of Concrete Filled Steel Tubular (CFST) sections incorporating crumb rubber particles as partial replacement of fine aggregates in concrete core. High daily temperatures; as in hot countries; was considered as well. Push out tests were conducted on 72 CFST specimens with five different concrete mixes. Prior to these tests, 210 concrete specimens were tested to obtain the mechanical properties of rubberized concrete under high temperature gradients. Some of the tests; on CFST sections or concrete specimens; were tested at the desired high temperature, and some others were tested after cooling down. The main variables considered were the crumb rubber replacement ratio, shape of CFST section (circular or square) and temperature gradient. The test results indicated that high temperature reduces the bond strength between steel tube and rubberized concrete core with small percentage of rubber replacement. Recovery in bond strength was observed when the specimens were cooled down. Circular sections showed higher bond strength and ductility on its square counterpart.https://www.fracturae.com/index.php/fis/article/view/2782/3035cfst sectionsbond strengthrubberized concretecrumb rubberelevated temperature |
| spellingShingle | Hesham M. Fawzy Suzan A. A. Mustafa Ahmed E. AbdEl-Badie Thermal Effect on Bond Strength of Rubberized Concrete Filled Steel Tubular Sections Fracture and Structural Integrity cfst sections bond strength rubberized concrete crumb rubber elevated temperature |
| title | Thermal Effect on Bond Strength of Rubberized Concrete Filled Steel Tubular Sections |
| title_full | Thermal Effect on Bond Strength of Rubberized Concrete Filled Steel Tubular Sections |
| title_fullStr | Thermal Effect on Bond Strength of Rubberized Concrete Filled Steel Tubular Sections |
| title_full_unstemmed | Thermal Effect on Bond Strength of Rubberized Concrete Filled Steel Tubular Sections |
| title_short | Thermal Effect on Bond Strength of Rubberized Concrete Filled Steel Tubular Sections |
| title_sort | thermal effect on bond strength of rubberized concrete filled steel tubular sections |
| topic | cfst sections bond strength rubberized concrete crumb rubber elevated temperature |
| url | https://www.fracturae.com/index.php/fis/article/view/2782/3035 |
| work_keys_str_mv | AT heshammfawzy thermaleffectonbondstrengthofrubberizedconcretefilledsteeltubularsections AT suzanaamustafa thermaleffectonbondstrengthofrubberizedconcretefilledsteeltubularsections AT ahmedeabdelbadie thermaleffectonbondstrengthofrubberizedconcretefilledsteeltubularsections |