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http://dx.doi.org/10.14190/JRCR.2022.10.2.143

Evaluating the Freeze-Thaw Damage of Concrete with Respect to Water to Cement Ratio Using Surface Rebound Value  

Park, Ji-Sun (Department of Building Research, KICT)
Ahan, Ki-Hong (Department of Structural Engineering Research, KICT)
You, Young-Jun (Department of Structural Engineering Research, KICT)
Lee, Jong-Suk (Department of Structural Engineering Research, KICT)
Publication Information
Journal of the Korean Recycled Construction Resources Institute / v.10, no.2, 2022 , pp. 143-151 More about this Journal
Abstract
In this study the relative dynamic modulus and surface rebound hardness measurement methods were used for comparison to predict the occurrence of frost dam age on the concrete. From the test results, it was observed that the initiation of concrete dam age predicted by surface rebound hardness values was 200 cycles quicker than that of the relative dynamic modulus method in the W/C 70 specimens. In addition, it continuously provided data that showed the frost damage development of concrete surfaces according to increasing freeze-thaw cycles. This indicated that the frost dam age of the concrete could be found from the initial point of its occurrence by the surface rebound hardness measurement method. Similar results were also observed in W/C 60 and 50 specimens. Therefore, it is considered that surface rebound hardness method predicted the freeze-thaw damage well, regardless of water-cement ratio.
Keywords
Surface rebound value; Water to cement ratio; Freeze and thaw;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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