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Experimental Study on Interface Shear Strength of Concrete in Vertical Construction Joint  

Kim, Ook-Jong (Division of Construction Business, Daelim Industrial Co.)
Kim, Young-Chan (Division of Architecture, Pukyong National Univesity)
Publication Information
Journal of the Korean Society of Safety / v.19, no.2, 2004 , pp. 125-129 More about this Journal
Abstract
In masive concrete placement, cracking problem due to hydration heat is frequently encountered. One of measure to solve this problem is to make a construction joint. However, it is cumbersome to make it by chipping the surface of joint. In this study, push-out test for 18 specimens was conducted to compare the interface shear strength of consturction joints whose surfaces were prepared with three methods; chipping, rib-lath, folded rib-lath. Compared to the specimens made with conventional surface chipping, those with rib-lathe showd excellent preformance increasing shear resistance capacity and the role of shear key conceived by folding rib-lath played important role in enhancing shear resistance.
Keywords
vertical construction joint; rib-lath; interface shear strength of concrete;
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  • Reference
1 Bussell M, N, Cather R., 'Design and construction of joints in concrete structures', CIRIA report 146, London, 1995
2 Ujike, Isao, Yoshida,Noriyoshi, Monshita, Shigekazu, 'Evaluation of mechanical properties of construction joint between new and old concrete under combined tensile and shear stresses', Journal-Society of Materials Science Japan, Vol. 47, No. 1, pp. 73-78, 1998
3 ACI, 'Building Code Requirements for Structural Concrete(ACI318-95) and Commentary(ACI 318R-95)', 1995
4 Tsuji, Yukikazu, Sugiyama, Takafumi, Hashimoto, Chikanori, 'Effect of vertical construction joint on the structural behavior of reinforced concrete beam made of self compacting concrete.', Journal-Society of Materials Science Japan, Vol. 49, No. 10, pp. 1127-1132, 2000 Oct   DOI
5 Moriwaki, Takashi, Tsuji, Yukikazu, Hashimoto, Chikanori, Nakajima, Takahiro, 'Characteristics for strength of construction joint using polymer modified mortar as joint materials', Proceedings of the Japan Society of Civil Engineers, Vol. 31, No. 538, pp. 15-26, 1996, 5
6 Moriwaki, Takashi, Tsuji, Yukikazu, Hashimoto, Chikanori, Kigure, Takeshi, "Perfonnance evaluationof construction joint existing in RC beam using polymer modified mortar as joint materials', Proceedings of the Japan Society of Civil Engineers, Vol. 31, No. 538, pp. 1-13, 1996, 5
7 Zhu, Yu-ting, 'Bond betwsen new and old concrete', Analysis of concrete structures by fracture mechanics., Chapman and Hall, London, pp. 199~207. 1991