Flexural Behavior of Reinforced Rubberized Reactive Powder Concrete Beams under Repeated Loads
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Abstract
Non-biodegradability of rubber tires contributes to pollution and fire hazards in the natural environment. In this study, the flexural behavior of the Rubberized Reactive Powder Concrete (RRPC) beams that contained various proportions and sizes of scrap tire rubber was investigated and compared to the flexural behavior of the regular RPC. Fresh properties, hardened properties, load-deflection relation, first crack load, ultimate load, and crack width are studied and analyzed. Mixes were made using micro steel fiber of the straight type, and they had an aspect ratio of 65. Thirteen beams were tested under two loading points (Repeated loading) with small-scale beams (1100 mm, 150 mm, 100 mm) size.
The fine aggregate is replaced by 5, 10, and 15%, respectively, with crumb rubber. While replacement of silica fume was 10, 20, 30, and 50%, respectively, with very fine rubber. Also, chip rubber was added to the mixture as coarse aggregate with 5, 10, and 15%. Five tested beams were chosen as case studies to analyze and compare the results of the ABAQUS software with the experimental results. The results showed that the flexural behavior of RRPC beams that contains rubber was acceptable when compared with the flexural behavior of the RPC beam (depending on load-carrying capacity). The crack width was decreased by including waste rubber and steel fibers. There is a satisfactory agreement between the results of the numerical analysis and the results of the experimental testing. Slight ultimate load differences are targeted between the effects of the monotonic loading and the repeated loading.
Article received: 07/09/2022
Article accepted: 05/10/2022
Article published: 01/08/2023
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References
Asaad, Z., Ghanim, G., Lecture, A., and Al-Quraishi, H., 2017. Compressive strength of bottle-shaped compression fields of fiber reinforced concrete members. Journal of Engineering, 23(11), pp. 56-69. Doi:10.31026/j.eng.2017.11.05
Aslani, F., Ma, G., Yim Wan, D.L., and Tran Le, V.X., 2018. Experimental investigation into rubber granules and their effects on the fresh and hardened properties of self-compacting concrete. Journal of Cleaner Production, 172, pp. 1835–1847. Doi:10.1016/j.jclepro.2017.12.003.
ASTM C1240, 2015. Standard specification for silica fume used for cementitious mixtures, ASTM International, West Conshohocken.
ASTM A496, 2007. Standard specification for steel wires, deformed, for concrete reinforcement. ASTM International, West Conshohocken.
ASTM C1437, 2015. Standard test method for flow of hydraulic cement mortar, ASTM International, West Conshohocken.
ASTM C496, 2017. Standard method of test for splitting tensile strength of cylindrical concrete specimens, ASTM International, West Conshohocken.
ASTM C348, 2021. Standard method of test for flexural strength of hydraulic-cement mortars, ASTM International, West Conshohocken.
Azhroul B.P., 2017. The effectiveness of micronized powder and crumb rubbers as fine aggregates replacement in ultra- high performance concrete. Bachelor dissertation, University Malaysia Pahang (UMP).
BS1881-116, 1997. Method for determination of compression strength of concrete cubes, British Standard Institute, London.
Committee, A., 2019. Building code requirements for structural concrete (ACI 318-19) and commentary, American Concrete Institute.
CAE ABAQUS. User's Manual. 2011. ABAQUS analysis user's manual.
Collins, M.P., Mitchell, D., and Macgregor, J.G., 1993. Structural design considerations for high strength concrete. Concrete International, 15(5), pp. 27–34.
De Brito, J., and Saikia, N., 2012. Recycled aggregate in concrete: use of industrial, construction and demolition waste, New York: Springer Science and Business Media. Doi:10.1007/978-1-4471-4540-0.
FEMA, A., 461/Interim, 2007. Testing protocols for determining the seismic performance characteristics of structural and nonstructural components, Applied Technology Council, Redwood City, CA, 113.
Iraqi specification No. 45, 1984. Aggregate from natural source for concrete, Central Agency for Standardization and Quality Control, Planning Council, Baghdad, Iraq.
Ishak, M.H.B., 2018. Chloride Resistance Penetration of Rubberized-ultra High Performance Concrete (UHPC). Bachelor dissertation, University Malaysia Pahang (UMP).
Kadhum, M. M., 2015. Studying of some mechanical properties of Reactive Powder Concrete using local materials. Journal of Engineering, 21(7), pp. 113-135. Doi:10.31026/j.eng.2015.07.09.
Kammash, K.N.A., and Abdul-Husain, Z.A., 2022. The behavior of bond strength between rebar and concrete in rubberized concrete. Journal of Engineering, 28(8), pp. 83-92. Doi:10.31026/j.eng.2022.08.06.
Pham, T.M., Davis, J., Ha, N.S., Pournasiri, E., Shi, F., and Hao, H., 2021. Experimental investigation on dynamic properties of ultra-high-performance rubberized concrete (UHPRuC). Construction and Building Materials, 307. Doi:10.1016/j.conbuildmat.2021.125104.
Richard, P., and Cheyrezy, M. H., 1994. Reactive powder concrete with high ductility and 200- 800 MPa compressive strength, Special Publication, 144, pp. 507–518.
Wang, X., Xia, J., and Li, Y., 2015. Compressive and flexural strength of Ultra-High Performance Fibre Reinforced Concrete containing recycled rubber crumb. Sustainable Buildings and Structures, pp. 65-70. 1st Ed., CRC Press.
Zhang, D., Li, H., Tu, H. and Weng, Y., 2022. Investigation on the quasi-static mechanical properties and dynamic compressive behaviors of ultra-high performance concrete with crumbed rubber powders. Materials and Structures, 55(3), p.104. Doi:10.1617/s11527-022-01904-0