NEW MODEL OF ECO-FRIENDLY HYBRID DEEP BEAMS WITH WASTES OF CRUSHED CONCRETE

Authors

  • Qasim Mohammed Shakir Civil Engineering Department, University of Kufa, Najaf, Iraq https://orcid.org/0000-0002-4064-149X
  • Asmaa Farooq alghazali Civil Engineering Department, University of Kufa, Najaf, Iraq

DOI:

https://doi.org/10.11113/jurnalteknologi.v85.20431

Keywords:

Eco-friendly, Hybrid deep beam, Precast, Recycled aggregate, Steel fibers reinforced concrete, Construction and demolition waste

Abstract

This paper presents a new model of hybrid sustainable deep beams that include crushed coarse aggregates (RCA) in place of natural aggregates. RCA was in three replacement ratios: 0%, 50%, and 100%. Six specimens of deep beams have been tested experimentally under static loads and were divided into two groups: the first group contains three specimens made with conventional hybrid deep beam models with a top layer of normal strength concrete including steel fibers (SFC) and a bottom layer of RCA with the three replacement ratios. In addition, the second group contains three specimens made with the proposed arched hybrid model SFRC within the arch region and RCA in other regions of the beam. Results revealed that when adopting the proposed model rather than the conventional hybrid model, the capacity improved by 13.5%, 19.7%, and 19.1% for the three replacement ratios, respectively. While the flexural toughness improved by 25.2%, 51.1%, and 62.1%, respectively. Moreover, results showed that for the conventional model, the mode of failure changed from flexure to diagonal with increasing RCA content. Whereas for the proposed model, the mode was kept to a flexural trend regardless of the RCA content in the bottom layer. The suggested arrangement of hybridization may be utilized to produce sustainable precast deep beams that minimize the impact of the waste of construction materials on the environment.

References

Karim, M. R., Zain, M. F. M., Jamil, M., & Lai, F. C. 2011. Significance of Waste Materials in Sustainable Concrete and Sustainable Development. International Journal of Biotechnology and Environmental Management. 18: 43-47.‏

Collivignarelli, M. C., Cillari, G., Ricciardi, P., Miino, M. C., Torretta, V., Rada, E. C., & Abbà, A. 2020. The Production of Sustainable Concrete with the Use of Alternative Aggregates: A Review. Sustainability. 12(19): 7903.‏

Pereira, P. M., & Vieira, C. S. 2022. A Literature Review on the Use of Recycled Construction and Demolition Materials in Unbound Pavement Applications. Sustainability. 14(21): 13918.‏

Y. O. ¨Ozkılıç, C. Aksoylu, M. H. Arslan. 2021. Experimental and Numerical Investigations of Steel Fiber Reinforced Concrete Dapped-End Purlins. Journal of Building Engineering. 36. https://doi.org/10.1016/j.jobe.2020.102119.

Shakir, Q. M., & Hamad, S. A. 2021. Behavior of Pocket-type High-strength RC Beams without or with Dapped Ends. Practice Periodical on Structural Design and Construction. 26(4): 04021048.‏

Shakir. Q. M. and Abdlsaheb, S. D. 2022. Rehabilitation of Partially Damaged High Strength RC Corbels by EB FRP Composites and NSM Steel Bars. Structures. 38: 652-671.

Shakir, Q. M., Alsaheb, S. D. A. & Noroozinejad Farsangi, E. 2023. Rehabilitation of Deteriorated Reinforced Self-consolidating Concrete Brackets and Corbels using CFRP Composites: Diagnosis and Treatment. J Build Rehabil. 8: 16. https://doi.org/10.1007/s41024-022-00262-2.

Shakir, Q. M., Hamad, S. A. 2023. Reinforced Concrete Beams with Drop-in- Ends of Vertical and Inclined Reinforcement and having Pockets Loaded by In-Plane Static Forces. Journal of Materials and Engineering Structures. 10(1): 33-49.

Aswin, M., Al-Fakih, A., Syed, Z. I., Liew, M. S. 2023. Influence of Different Dapped-end Reinforcement Configurations on Structural Behavior of RC Dapped-end Beam. Buildings. 13: 116. https://doi.org/10.3390/buildings13010116.

Sahoo, D. R., Flores, C. A., and Chao, S. H. 2012. Behavior of Steel Fiber-reinforced Concrete Deep Beams with Large Opening. ACI Struct. J. 109(2): 193-204. Doi: 10.14359/51683630.

Moradi, M., & Esfahani, M. R. 2017. Application of the Strut-and-tie Method for Steel Fiber Reinforced Concrete Deep Beams. Construction and Building Materials. 131: 423-437.‏

Yousef, A. M., Tahwia, A. M., & Marami, N. A. 2018. Minimum Shear Reinforcement for Ultra-high Performance Fiber Reinforced Concrete Deep Beams. Construction and Building Materials. 184: 177-185.‏

Sagi, M. S. V., Lakavath, C., & Prakash, S. S. 2022. Effect of Steel Fibers on the Shear Behavior of Self-Compacting Reinforced Concrete Deep Beams: An Experimental Investigation and Analytical Model. Engineering Structures. 269: 114802.‏

Chen, C. C., Lin, K. T., & Chen, Y. J. 2018. Behavior and Shear Strength of Steel Shape Reinforced Concrete Deep Beams. Engineering Structures. 175: 425-435.‏

Liu, H. X., Yang, J. W., Wang, X. Z., & Han, D. J. 2017. Experimental Study on Shear Behavior of BFRP-reinforced Recycled Aggregate Concrete Deep Beams without Stirrups. KSCE Journal of Civil Engineering. 21: 2289-2299.‏

Kachouh, N., El-Maaddawy, T., El-Hassan, H., & El-Ariss, B. 2021. Shear Behavior of Steel-fiber-reinforced Recycled Aggregate Concrete Deep Beams. Buildings. 11(9): 423.‏

Soltanabadi, R. and Behfarnia, K. 2022. Shear Strength of Reinforced Concrete Deep Beams Containing Recycled Concrete Aggregate and Recycled Asphalt Pavement. Constr. Build. Mater. 314(PB): 125597. Doi: 10.1016/j.conbuildmat.2021.125597.

Chaboki, H. R., Ghalehnovi, M., Karimipour, A., de Brito, J., & Khatibinia, M. 2019. RETRACTED: Shear Behaviour of Concrete Beams with Recycled Aggregate and Steel Fibres.‏ Construction and Building Materials. 204: 809-827.

Zaid, O., Mukhtar, F. M., Rebeca, M., El Sherbiny, M. G., & Mohamed, A. M. 2022. Characteristics of High-performance Steel Fiber Reinforced Recycled Aggregate Concrete Utilizing Mineral Filler. Case Studies in Construction Materials. 16: e00939.‏

Hassan, H. F. 2015. Behavior of Hybrid Deep Beams Containing Ultra High Performance and Conventional Concretes. Engineering and Technology Journal. 33(1): 30-50.‏

Hassan, S. A., & Mhebs, A. H. 2018. Behavior of High Strength Hybrid Reinforced Concrete Deep Beams under Monotonic and Repeated Loading. The Open Civil Engineering Journal. 12(1).‏

Saad, A. Y., & Rasheed, L. S. 2018, November. Behaviours of Hybrid Deep Beams with RPC Layers in the Tension Region. IOP Conference Series: Materials Science and Engineering. 433(1): 012032. IOP Publishing.‏

Shakir Q. M. and Hanoon H. K. 2023. Behavior of High-Performance Reinforced Arched-hybrid Self-compacting Concrete Deep Beams. 18(1): 792-813.

Shakir, Q. M. and Hanoon, H. K. 2023. A Novel Hybrid Model of Reinforced Concrete Deep Beams with Curved Hybridization. Jurnal Teknologi. 85(2): 31-39. Doi: https://doi.org/10.11113/jurnalteknologi.v85.18703.

Shakir Q. M. and Hanoon H. K. 2023. New Models for Reinforced Concrete Precast Hybrid Deep Beams under Static Loads with Curved Hybridization. Structures. 54(8): 1007-1025.

Shakir, Q. M. and alghazali, A. F. 2023. Hybrid Curved Precast Deep Beams Composed Partially from Concrete made of Recycled Concrete Aggregate. Inter. Conf. On Geotechnical Eng. and Energetic-Iraq.

Iraqi Specification No. 5. 1984. Portland Cement. Baghdad.

Iraqi Specification No.45. 1984. Natural Sources for Gravel that is Used in Concrete and Construction, Baghdad.

ASTM A615/A615M-04. 2004. Standard Specifications for Deformed and Plane Carbon-Steel Bars for Concrete Reinforcement. Annual Book of ASTM Standard.

ASTM C496/C496M-11. 2011. Standard Test Method for Splitting Tensile Strength of Cylindrical Concrete Specimens. Annual Book of ASTM Standard.

BS 1881-116. 1983. Method for Determination of Compressive Strength of Concrete Cubes. British Standards Institute, London.

Shakir Q. M., and Abd B. B. 2020. Retrofitting of Self-compacting RC Half Joints with Internal Deficiencies by CFRP Fabrics. Jurnal Teknologi. 82(6): 49-62.

Published

2023-09-17

How to Cite

Mohammed Shakir, Q., & alghazali, A. F. . (2023). NEW MODEL OF ECO-FRIENDLY HYBRID DEEP BEAMS WITH WASTES OF CRUSHED CONCRETE. Jurnal Teknologi, 85(6), 145-154. https://doi.org/10.11113/jurnalteknologi.v85.20431

Issue

Section

Science and Engineering