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http://dx.doi.org/10.5345/JKIBC.2011.11.5.426

Estimation of Long-term Aging Compressive Strength Through Non-Destructive Testing of Concrete Structure Using Mineral Admixtures  

Kim, Jeong-Sup (Department of Architectural Engineering, Chosun University)
Shin, Yong-Seok (Department of Architectural Engineering, Chosun University)
Lee, Chang-Hyun (Graduate School, Chosun University)
Lee, Seung-Jung (Graduate School, Chosun University)
Kim, Kwang-Seok (Department of Architectural, Seokang University)
Publication Information
Journal of the Korea Institute of Building Construction / v.11, no.5, 2011 , pp. 426-434 More about this Journal
Abstract
Recently, the use of mineral admixtures in concrete has been studied in many laboratories, and been applied in the field. But the non-destructive testing equation proposed in Japan for normal strength concrete has been used to determine compressive strength, because there has been a lack of systematic research on the compressive strength of concrete using mineral admixtures. For this reason, it is essential to suggest a non-destructive testing equation to estimate the compressive strength of concrete using mineral admixtures. Therefore, this study made a cylindrical specimen and core tube specimen of concrete using a mineral admixture, and suggested a strength estimation of long-term age (4 years) through non-destructive and destructive tests. The results of the research are as follows. Comparing error rates between conventional suggested equations and this estimated equation shows some differences by age, but the error rate of this study was reduced to 0.3 %~115.0 % compared to conventional equations by re-bound hammering, 0.2 %~22.8 % by the ultrasound velocity method and 0.5 %~102.3 % by complex method. Accordingly, it is judged to be suitable for assessing the compressive strength of concretes using mineral admixtures.
Keywords
mineral admixtures; non-destructive testing; compressive strength estimation;
Citations & Related Records
Times Cited By KSCI : 8  (Citation Analysis)
연도 인용수 순위
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