Shear Behaviour of Reinforced Self-Compacting Concrete Beams Made with Treated Recycled Aggregate
In this paper, an experimental work was conducted to investigate the possibility of improving the structural performance of reinforced self-compacting concrete (SCC) beams cast with 100% treated and untreated recycled aggregate (RA). RA was first exposed to a simple treatment method to reduce the amount of its adhered mortar and to improve its performance by the impregnation in polyvinyl alcohol (PVA) polymer solution. After completing RA treatments, rectangular simply supported reinforced SCC beams cast with RA, treated recycled aggregate (TRA) as well as normal aggregate (NA), were prepared and tested under two-point loading up to failure. Half of the prepared beams were tested to evaluate the shear behaviour of normal strength (NS) SCC mixes, while the other half was tested for high strength (HS) SCC mixes. The results were evaluated with regards to load deflection response, ultimate failure load, first crack load, and cracking pattern. The main experimental results demonstrated that using treated RA considerably improved the shear capacity of reinforced SCC beams in comparison with that of untreated RA. Based on the ACI 318-14 and Euro codes, the shear strength values showed that the treated RA beams were considered more conservative compared to the RA beams in both strength grades.
Z. Lei-shun, Z. Xiao-lei, and Y. A. N. Guo-xin, “Experimental Research on the Shearing Capacity of Recycled Concrete Beams Without Stirrups,” J. Zhengzhou Univ. (Engineering Sci., vol. 2, p. 4, 2006.
H. B. Choi, C. K. Yi, H. H. Cho, and K. I. Kang, “Experimental study on the shear strength of recycled aggregate concrete beams,” Mag. Concr. Res., vol. 62, no. 2, pp. 103–114, 2010.
B. González-Fonteboa and F. Martínez-Abella, “Shear strength of recycled concrete beams,” Constr. Build. Mater., vol. 21, no. 4, pp. 887–893, 2007.
S. Schubert, C. Hoffmann, A. Leemann, K. Moser, and M. Motavalli, “Recycled aggregate concrete: Experimental shear resistance of slabs without shear reinforcement,” Eng. Struct., vol. 41, pp. 490–497, 2012.
J. Xiao, H. Xie, and Z. Yang, “Shear transfer across a crack in recycled aggregate concrete,” Cem. Concr. Res., vol. 42, no. 5, pp. 700–709, 2012.
A. M. Knaack and Y. C. Kurama, “Behavior of reinforced concrete beams with recycled concrete coarse aggregates,” J. Struct. Eng., vol. 141, no. 3, p. B4014009, 2014.
I. Maruyama, M. Sogo, T. Sogabe, R. Sato, and K. Kawai, “Flexural properties of reinforced recycled concrete beams,” in Proceedings of the international RILEM conference on the use of recycled materials in buildings and structures, Barcelona, Spain, 2004, pp. 8–11.
X. Jianzhuang and L. A. N. Yang, “Experimental Sstudy on Shear Behavior of Recycled Concrete Beams [J],” Struct. Eng., vol. 6, p. 13, 2004.
B. B. Zhou, W. M. Sun, Z. G. Guo, H. M. Qu, Q. T. Cao, and J. L. Liu, “Experimental study on shear capacity of recycled concrete beams with stirrup,” Sichuan Build Sci, vol. 35, no. 6, pp. 16–18, 2009.
T. NI, W. SUN, Z. GUO, H. QU, D. SHEN, and S. Ding, “Experimental study on shear behavior of recycled concrete beams without stirrup,” Sichuan Build. Sci., vol. 1, p. 3, 2010.
G. Fathifazl, A. G. Razaqpur, O. B. Isgor, A. Abbas, B. Fournier, and S. Foo, “Shear strength of reinforced recycled concrete beams with stirrups,” Mag. Concr. Res., vol. 62, no. 10, pp. 685–699, 2010.
H. Katkhuda and N. Shatarat, “Shear behavior of reinforced concrete beams using treated recycled concrete aggregate,” Constr. Build. Mater., vol. 125, pp. 63–71, 2016.
K. Eguchi, K. Teranishi, A. Nakagome, H. Kishimoto, K. Shinozaki, and M. Narikawa, “Application of recycled coarse aggregate by mixture to concrete construction,” Constr. Build. Mater., vol. 21, no. 7, pp. 1542–1551, 2007.
M. Etxeberria, E. Vázquez, A. Marí, and M. Barra, “Influence of amount of recycled coarse aggregates and production process on properties of recycled aggregate concrete,” Cem. Concr. Res., vol. 37, no. 5, pp. 735–742, 2007.
K. Rahal, “Mechanical properties of concrete with recycled coarse aggregate,” Build. Environ., vol. 42, no. 1, pp. 407–415, 2007.
C. J. Zega, Y. A. Villagran-Zaccardi, and A. A. Di Maio, “Effect of natural coarse aggregate type on the physical and mechanical properties of recycled coarse aggregates,” Mater. Struct., vol. 43, no. 1–2, pp. 195–202, 2010.
G. Dimitriou, P. Savva, and M. F. Petrou, “Enhancing mechanical and durability properties of recycled aggregate concrete,” Constr. Build. Mater., vol. 158, pp. 228–235, 2018.
M. S. Abo Dhaheer, W. S. Alyhya, B. L. Karihaloo, and S. Kulasegaram, “Proportioning of self – compacting concrete mixes based on target plastic viscosity and compressive strength : mix design procedure,” J. Sustain. Cem. Mater., no. September, 2015.
M. S. Abo Dhaheer, W. S. Alyhya, and B. L. Karihaloo, “Proportioning of self-compacting concrete mixes based on target plastic viscosity and compressive strength : Part II - experimental validation,” vol. 0373, no. June, 2016.
B. S. 206-9 EN, “Additional Rules for Self-Compacting Concrete (SCC),” Br. Stand. Publ., vol. Concrete—P, 2010.
EFNARC Guidelines, “The European Guidelines for Self-Compacting Concrete; specification, production and use,” no. May, p. 63, 2005.
B. S. 12390 EN, “Testing hardened concrete-Part 3: Compressive strength of test specimens,” London Br. Stand. Inst., 2009.
M. S. Abo Dhaheer, “EXPERIMENTAL INVESTIGATION ON THE FRESH AND HARDENED PROPERTIES OF CONCRETE INCORPORATING POLYVINYL,” AL-QADISIYAH J. Eng. Sci., vol. 11, no. 1, pp. 134–147, 2018.
M. S. Abo Dhaheer, and H. K. Ammash, “IMPROVEMENT OF ORDINARY AND PURE GYPSUM PROPERTIES BY USING POLYVINYL ALCOHOL ( PVA ),” Int. J. Civ. Eng. Technol., vol. 9, no. 9, pp. 323–334, 2018.
M. S. Abo Dhaheer, “Improving the Properties of Clay Brick Using Polyvinyl Alcohol ( PVA ),” Int. J. Eng. Technol., vol. 7, pp. 568–571, 2018.
A. Committee, “Building Code Requirements for Structural Concrete (ACI 318M-14): An ACI Standard: Commentary on Building Code Requirements for Structural Concrete (ACI 318M-14),” 2014.
S. for C. European, “EUROCODE 2 : DESIGN OF CONCRETE STRUCTURES - PART 1-1 : GENERAL RULES” 2005.
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