Abstract
Reinforced concrete structures still exist with low-strength class in which plain reinforcement (rebar) is used. The coarse aggregate concentration (CAC) in such concrete may also vary significantly. Considering such structures and their reinforced concrete bearing systems, in this study, eight different mixtures with 0.9 and 1.2 water/cement ratios (W/Cm) and 4 different CACs (60%-40%-20%-0%) were produced. Total aggregate volume fraction was kept constant in all mixtures. Modulus of elasticity (MOE), compressive, and splitting tensile strength (STS) tests were performed at 28 days. Bond strength and bond-slip behavior were investigated by pull-out tests. Results showed that the compressive strength ranged from 7.9 to 23.4 MPa. While the MOE improved by about 34%, the compressive strength decreased by around 30% when the CAC was increased from 0% to 60% in the concrete with 1.2 W/Cm. With an increase in CAC, compressive strength and MOE increased in the mixtures with W/Cm of 0.9. The presence of coarse aggregate increased STS in the concrete with W/Cm of 1.2, while the mixture with CAC of 60% having W/Cm of 0.9 had the lowest STS. In terms of the bond strength and residual bond stress between the concrete and plain rebar, the mixtures without coarse aggregate have performed worst for both W/Cm. Additionally, when the CAC was increased from 0% to 40%, in the mixtures with W/Cm of 0.9, almost 60% improvement in bond strength was seen. Moreover, bond-slip behaviors of the mixtures were evaluated.
This is a preview of subscription content, log in via an institution to check access.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
References
MacGregor JGW, Wight JK, Teng S, Irawan P (1997) Reinforced concrete: mechanics and design, vol 3. Prentice Hall, New Jersey
Çaǧatay IH (2005) Experimental evaluation of buildings damaged in recent earthquakes in Turkey. Eng Fail Anal 12(3):440–452. https://doi.org/10.1016/j.engfailanal.2004.02.007
Inel M, Senel SM, Un H (2008) Experimental evaluation of concrete strength in existing buildings. Mag Concr Res 60(4):279–289. https://doi.org/10.1680/macr.2007.00091
Tapan M, Comert M, Demir C et al (2013) Failures of structures during the October 23, 2011 Tabanlı (Van) and November 9, 2011 Edremit (Van) earthquakes in Turkey. Eng Fail Anal 34:606–628. https://doi.org/10.1016/j.engfailanal.2013.02.013
Yildirim H, Sengul O (2011) Modulus of elasticity of substandard and normal concretes. Constr Build Mater 25(4):1645–1652. https://doi.org/10.1016/j.conbuildmat.2010.10.009
ACI Committee 318 (2008) Building code requirements for structural concrete. Mich.: American Concrete Institute, Farmington Hills
1992–1–1 E (2004) Eurocode 2: design of concrete structures – Part 1-1: General rules and rules for buildings
Sezen H, Setzler EJ (2008) Reinforcement slip in reinforced concrete columns. ACI Struct J 105(3):280
Limkatanyu S, Spacone E (2003) Effects of reinforcement slippage on the non-linear response under cyclic loadings of RC frame structures. Earthq Eng Struct Dyn 32(15):2407–2424
ACI (American Concrete Institute) (2003) ACI 408R-03: Bond and development of straight reinforcing bars in tension
Tepfers R (1979) Cracking of concrete cover along anchored deformed reinforcing bars. Mag Concr Res 31(106):3–12
Turkish Standards Institution (2016) Design of Concrete Mixes (TS 802)
Turkish Standards Institution (2010) TS EN 12390–3 Testing hardened concrete-Part 3:Compressive strength of test specimens
Turkish Standards Institution (2010) TS EN 12390–6 Testing hardened concrete - Part 6: Tensile splitting strength fo test specimens
American Society for Testing and Materials (2022) ASTM C469 Standard Test Method for Static Modulus of Elasticity and Poisson’s Ratio of Concrete in Compression
Cairns J (2021) Local bond–slip model for plain surface reinforcement. Struct Concr 22(2):666–675. https://doi.org/10.1002/suco.202000114
Code C-FM (2013) Fib Model Code for Concrete Structures 2010; Ernst & Sohn. Wiley, Berlin
Verderame GM, De Carlo G, Ricci P, Fabbrocino G (2009) Cyclic bond behaviour of plain bars. Part II: analytical investigation. Constr Build Mater 23(12):3512–3522. https://doi.org/10.1016/j.conbuildmat.2009.07.001
Acknowledgments
The authors gratefully acknowledge “ITU Scientific Research Projects Coordination Unit (BAP)” for their financial support (Project number: MYL-2022–43739).
Author information
Authors and Affiliations
Corresponding author
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2023 The Author(s), under exclusive license to Springer Nature Switzerland AG
About this paper
Cite this paper
Bicakci, S.N., Abo Kaf, O., Turkmenoglu, H.N., Baran, S., Atahan, H.N. (2023). Effect of Coarse Aggregate Concentration on the Mechanical Properties and Bond-Slip Behavior Between the Low Strength Concrete and Plain Rebar. In: Ilki, A., Çavunt, D., Çavunt, Y.S. (eds) Building for the Future: Durable, Sustainable, Resilient. fib Symposium 2023. Lecture Notes in Civil Engineering, vol 349. Springer, Cham. https://doi.org/10.1007/978-3-031-32519-9_102
Download citation
DOI: https://doi.org/10.1007/978-3-031-32519-9_102
Published:
Publisher Name: Springer, Cham
Print ISBN: 978-3-031-32518-2
Online ISBN: 978-3-031-32519-9
eBook Packages: EngineeringEngineering (R0)