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http://dx.doi.org/10.14190/JRCR.2016.4.1.019

Bond Behavior of Concrete According to Replacement Ratio of Fly Ash and Compressive Strength of Concrete  

Lee, Hyung-Jib (Dept. of Civil & Environmental Engineering, Woosuk University)
Suh, Jeong-In (Dept. of Civil & Environmental Engineering, Woosuk University)
Yoo, Sung-Won (Dept. of Civil & Environmental Engineering, Woosuk University)
Publication Information
Journal of the Korean Recycled Construction Resources Institute / v.4, no.1, 2016 , pp. 19-24 More about this Journal
Abstract
Several researches on high volume fly ash concrete have been conducted to investigate its fundamental material properties such as slump, strength and durability and however, research on the structural behavior of bond strength is essential for the application of this high volume fly ash concrete to structural members because of the necessity of reinforcement. But the exact design code for application and researches on the bond behavior of high volume fly ash concrete lack yet. To achieve such a goal, this paper evaluates experimentally the bond behavior of high volume fly ash concretes by direct pull-out test and compares between the current test results and existing research results. By the test results, it is shown that the bond behavior of high volume fly ash concrete is similar to that of general concrete. And by the comparison between test and existing research, it is shown that bond stress of high volume fly ash concrete is underestimated, as the embedment length gets longer.
Keywords
High volume; Fly ash; Bond behavior; Direct pull-out test;
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