Browse > Article
http://dx.doi.org/10.14190/JRCR.2022.10.2.168

Comparison of Bond-Slip Behavior and Design Criteria of High Strength Lightweight Concrete with Compressive Strength 50 MPa and Unit Weight 16 kN/m3  

Lee, Dong-Kyun (Dept. of Civil & Environmental Engineering, Gachon University)
Lee, Do-Kyung (Dept. of Civil & Environmental Engineering, Gachon University)
Oh, Jun-Hwan (Dept. of Civil & Environmental Engineering, Gachon University)
Yoo, Sung-Won (Dept. of Civil & Environmental Engineering, Gachon University)
Publication Information
Journal of the Korean Recycled Construction Resources Institute / v.10, no.2, 2022 , pp. 168-175 More about this Journal
Abstract
With the recent development of nanotechnology, its application in the field of construction materials is continuously increasing. However, until now, studies on the bond characteristics of concrete and rebar for applying high-strength lightweight concrete with a compressive strength of 50 MPa and a unit weight of 16 kN/m3 to structural members are lacking. Therefore, in this paper, 81 specimens of high-strength lightweight concrete with a compressive strength of 50 MPa and a unit weight of about 16 kN/m3 were fabricated and a direct pull-out tests were performed. The design code for the bond strength of ACI-408R and the experimental results are shown to be relatively similar, and as a result of the CEB-FIP and modified CMR bond behavior models through statistical analysis, it is shown to describe well on average.
Keywords
High strength; Lightweight; Bond behavior; Direct pull-out test;
Citations & Related Records
연도 인용수 순위
  • Reference
1 Sim, J.I., Yang, K.H. (2011). Mechanical properties of lightweight aggregate concrete according to the substitution rate of natural sand and maximum aggregate size, Journal of the Korea Concrete Institute, 23(5), 551-558.   DOI
2 Taerwe, L., Matthys, S. (2013). Fib Model Code for Concrete Structures 2010, The International Federation for Structural Concrete(fib), Lausanne, Switzerland, 244.
3 Sim, J.I., Yang, K.H. (2010). Air content, workability and bleeding characteristics of fresh lightweight aggregate concrete, Journal of the Korea Concrete Institute, 22(4), 559-566.   DOI
4 Eligehausen, R., Popov, E., Bertero, V. (1983). Local bond stress-slip relationships of deformed bars under generalized excitations, University of California, Berkeley, Calif, 83(23).
5 Jung, S.W. (2010). Standardization Technology for The Environmental-Friendly Utilization of Pond Ash Technical Report, R-2007-2-151, Korea Conformity Laboratories, Seoul, 1-15 [in Korean].
6 Orangun, C., Jirsa, J., Breen, J. (1977). A reevaluation of test data on development length and splices, ACI Structural Journal, 74(3), 114-122.
7 ACI 408R-03. (2003). Bond and Development of Straight Reinforcing Bars in Tension, ACI Committee 408, 49.
8 Cosenza, E., Manfredi, G., Realfonzo, R. (1995). Analytical modelling of bond between FRP reinforcing bars and concrete, non-metallic(FRP) reinforcement for concrete structures, In Proceedings of the Second International RILEM Symposium (FRPRCS-2), University of Naples, Naples, Italy, 165-171.
9 Balazs, G.L. (1993). Cracking Analysis Based on Slip and Bond Stresses, ACI Materials Journal, 90(4), 340-348.