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Structural Engineering and Mechanics Volume 69, Number 1, January10 2019 , pages 77-93 DOI: https://doi.org/10.12989/sem.2019.69.1.077 |
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Structural performance of recycled aggregates concrete sourced from low strength concrete |
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Caglar Goksu, Ilyas Saribas, Ergun Binbir ,Yilmaz Akkaya and Alper Ilki
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| Abstract | ||
| Although much research has been carried out using recycled aggregates sourced from normal strength concrete, most of the buildings to be demolished are constructed with low strength concrete. Therefore, the properties of the concrete incorporating recycled aggregates, sourced from the waste of structural elements cast with low strength concrete, were investigated in this study. Four different concrete mixtures were designed incorporating natural and recycled aggregates with and without fly ash. The results of the mechanical and durability tests of the concrete mixtures are presented. Additionally, full-scale one-way reinforced concrete slabs were cast, using these concrete mixtures, and subjected to bending test. The feasibility of using conventional reinforced concrete theory for the slabs made with structural concrete incorporating recycled aggregates was investigated. | ||
| Key Words | ||
| bond; durability; flexural behavior; low strength concrete; recycled aggregate; reinforced concrete; slab; three-point bending test | ||
| Address | ||
| Caglar Goksu, Ilyas Saribas, Ergun Binbir, Yilmaz Akkaya and Alper Ilki: Istanbul Technical University, Civil Engineering Faculty, Maslak, Istanbul, Turkey | ||