Influence of recycled concrete aggregate content on load-bearing capacity and deformability of reinforced concrete slabs under static loading

• Autorzy: Sadowska-Buraczewska Barbara , Kujawska Justyna

Identyfikatory

DOI

10.12913/22998624/207781

• Języki publikacji: EN

Abstrakty

EN

This paper presents the results of an experimental study on the effect of progressive replacement of natural aggregate with recycled concrete aggregate (RCA) on bearing capacity, deformability and crack development in reinforced concrete slabs subjected to emergency loading. The study included four series of slabs in which the proportion of RCA was 0%, 20%, 50% and 100% by weight to natural coarse aggregate, respectively. The specimens were made with CEM I 42.5 R cement and the concrete mixtures had a constant w/c ratio 0.51. Measurements of ultimate bearing capacity, deflections, crack development and regression analysis of the force-deflection relationship were carried out. The results showed that replacing the natural aggregate with RCA to a level of 20% did not result in a significant decrease in bearing capacity or excessive deflections. In contrast, increasing the proportion of RCA to 50% and 100% led to a systematic reduction in load carrying capacity (by 6.4% and 12.5%, respectively) and an increase in the deformability of the elements, especially in the final loading phases. More intensive crack development was also found at higher RCA contents, which is related to the lower stiffness and higher porosity of the recycled concrete. The results obtained indicate that concrete with RCA can be used in structural elements provided that the proportion of secondary aggregate is controlled and that the technology for producing this type of concrete is further improved.

Słowa kluczowe

EN

recycled concrete; recycled concrete aggregate; bearing capacity; deflections; reinforced concrete; slabs; cracking; regression analysis

• Wydawca: Lublin University of Technology ; Polish Society of Ecological Engineering (PTIE), Branch of PTIE in Lublin
• Czasopismo: Advances in Science and Technology. Research Journal
• Rocznik: 2025
• Tom: Vol. 19, no. 12
• Strony: 120--128
• Opis fizyczny: Bibligr. 25 poz., fig., tab.

Twórcy

autor

Sadowska-Buraczewska Barbara

• Faculty of Civil Engineering and Environmental Sciences, Bialystok University of Technology, ul. Wiejska 45A, 15-351 Bialystok, Poland

• https://orcid.org/0000-0002-1238-1272

autor

Kujawska Justyna

• Faculty of Environmental Engineering and Energy, Lublin University of Technology, ul. Nadbystrzycka 40B, Lublin, Poland

• https://orcid.org/0000-0002-1238-1272

Bibliografia

• 1. Michaud K., Hoult N., Lotfy A., Lum P. Performance in shear of reinforced concrete slabs containing recycled concrete aggregate. Materials and Structures, 2016; 49(10), 4425–4438. https://doi.org/10.1617/s11527-016-0798-4.
• 2. Kefyalew F., Imjai T., Garcia R., Kim B. Structural and service performance of composite slabs with high recycled aggregate concrete contents. Engineering Science, 2024; 27, 1021. https://doi.org/10.30919/es1021.
• 3. Xiao J., Li W., Fan Y., Huang X. An overview of study on recycled aggregate concrete in China (1996–2011). Construction and Building Materials, 2012; 31, 364–383. http://dx.doi.org/10.1016/j.conbuildmat.2011.12.074.
• 4. Fanijo E. O., Kolawole J. T., Babafemi A. J., Liu J. A comprehensive review on the use of recycled concrete aggregate for pavement construction: Properties, performance, and sustainability. Cleaner Materials, 2023; 9, 100199. https://doi.org/10.1016/j.clema.2023.100199.
• 5. Bashir M. T., Khan A. B., Khan M. M. H., Rasheed K., Saad S., Farid F. Evaluating the implementation of green building materials in the construction sector of developing nations. Journal of Human, Earth, and Future, 2024; 5(3), 528–542. http://dx.doi.org/10.28991/HEF-2024-05-03-015.
• 6. Chen X., Zhang Z., Xu Z., Wu Q., Fan J., Zhao X. Experimental analysis of recycled aggregate concrete beams and correction formulas for the crack resistance calculation. Advances in Materials Science and Engineering, 2022; 2022. https://doi.org/10.1155/2022/146650.
• 7. Han S., Zhao S., Lu D., Wang D. Performance improvement of recycled concrete aggregates and their potential applications in infrastructure: a review. Buildings, 2023; 13(6). https://doi.org/10.3390/buildings13061411.
• 8. Omary S., Ghorbel E., Wardeh G. Relationships between recycled concrete aggregates characteristics and recycled aggregates concretes properties. Construction and Building Materials, 2016; 108, 163–174. http://dx.doi.org/10.1016/j.conbuildmat.2016.01.042.
• 9. Adamczyk J., Dylewski R. Recycling of construction waste in terms of sustainable building. 2010; 5(2), 125–131.
• 10. Łój G., Nocuń-Wczelik W. Use of prefabrication, construction and demolition wastes as an aggregate in vibropressed precast concrete blocks production. Journal of Civil Engineering and Construction, 2022; 11(1), 20–28. https://doi.org/10.32732/jcec.2022.11.1.20.
• 11. Pedro D., de Brito J., Evangelista L. Durability performance of high-performance concrete made with recycled aggregates, fly ash and densified silica fume. Cement and Concrete Composites, 2018; 93, 63–74. https://doi.org/10.1016/j.cemconcomp.2018.07.002.
• 12. Aldmour R., Shatarat N., Abdel-Jaber M. Biaxial shear behavior of recycled concrete aggregate reinforced concrete beams. Case Studies in Construction Materials, 2023; 18, e02127. https://doi.org/10.1016/j.cscm.2023.e02127.
• 13. Sadowska-Buraczewska B., Barnat-Hunek D., Szafraniec M. Influence of recycled high-performance aggregate on deformation and load-carrying capacity of reinforced concrete beams. Materials, 2020; 13(1), 186. https://doi.org/10.3390/ma13010186.
• 14. Schubert S., Hoffmann C., Leemann A., Moser K., Motavalli M. Recycled aggregate concrete: Experimental shear resistance of slabs without shear reinforcement. Engineering Structures, 2012; 41, 490–497. http://dx.doi.org/10.1016/j.engstruct.2012.04.006.
• 15. Imjai T., Garcia R., Kim B., Hansapinyo C., Sukontasukkul P. Serviceability behaviour of FRP-reinforced slatted slabs made of high-content recycled aggregate concrete. Structures, 2023; 51, 1071–1082. https://doi.org/10.1016/j.istruc.2023.03.075.
• 16. Al-Sudani Z. A., De’Nan F., Al-Zand A. W., Rahman N. A., Liejy M. C. Flexural performance of a new composite double PSSDB slab system filled with recycled concrete. Civil Engineering Journal, 2024; 10(12), 3851–3873. https://doi.org/10.28991/CEJ-2024-010-12-03.
• 17. Khoshnaw G. J., Younis K. H., Hamad W. A., Ismail A. J., Jukil G. A. M., Jirjees F. F., et al. Experimental investigation on pervious recycled aggregate concrete made of waste porcelain. Civil Engineering Journal, 2024; 10(9), 2888–2901. https://doi.org/10.28991/CEJ-2024-010-09-08.
• 18. Dawood M. H., Al-Asadi A. K. Mechanical properties and flexural behaviour of reinforced concrete beams containing recycled concrete aggregate. Scientific Review Engineering and Environmental Sciences, 2022; 31(4), 259–269. https://doi.org/10.22630/srees.4250.
• 19. European Committee for Standardization. EN 197-1:2014 Cement – Part 1: Composition, specifications and conformity criteria for common cements.
• 20. Polish Committee for Standardization. PN-EN 1008:2004. Mixing water for concrete – Specification for sampling, testing and assessing the suitability of water, including water recovered from the processes of concrete production. Warsaw: PKN; 2004.
• 21. Polish Committee for Standardization. PN-EN 12390-13. Determination of the modulus of elasticity in compression.
• 22. Polish Committee for Standardization. PN-EN 12390-6. Testing hardened concrete—Part 6: Tensile splitting strength of test specimens.
• 23. Polish Committee for Standardization. PN-EN 12390-3. Testing hardened concrete—Part 3: Compressive strength of test specimens.
• 24. Polish Committee for Standardization. PN-EN 12390-2:2019-07. Concrete testing—Part 2: Making and maintenance of strength testing specimens.
• 25. Chou J. S., Chiu C. K. Optimizing the prediction accuracy of concrete compressive strength based on a comparison of data-mining techniques. Journal of Computing in Civil Engineering, 2011; 25(3), 220–228. https://doi.org/10.1061/ASCECP.1943-5487.0000088.

Uwagi

Opracowanie rekordu ze środków MNiSW, umowa nr POPUL/SP/0154/2024/02 w ramach programu "Społeczna odpowiedzialność nauki II" - moduł: Popularyzacja nauki (2026).