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http://dx.doi.org/10.11112/jksmi.2014.18.5.034

Shrinkage Reduction Performance of HPFRCC Using Expansive and Srhinkage Reducing Admixtures  

Park, Jung-Jun (한국건설기술연구원 인프라구조연구실)
Moon, Jae-Heum (한국건설기술연구원 인프라구조연구실)
Park, Jun-Hyoung (한국건설기술연구원 인프라구조연구실)
Lee, Jang-Hwa (한국건설기술연구원 인프라구조연구실)
Kim, Sung-Wook (한국건설기술연구원 인프라구조연구실)
Publication Information
Journal of the Korea institute for structural maintenance and inspection / v.18, no.5, 2014 , pp. 34-40 More about this Journal
Abstract
High-performance fiber-reinforced cement composite (HPFRCC) shows very high autogenous shrinkage, because it contains a low water-to-binder ratio (W/B) of 0.2 and high fineness admixture without coarse aggregate. Thus, it needs a method to decrease the cracking potential. Accordingly, in this study, to effectively reduce the shrinkage of HPFRCC, a total of five different ratios of SRA (1% and 2%), EA (5% and 7.5%), and a combination of SRA and EA (1% and 7.5%) were considered. According to the test results of ring-test, a combination of SRA and EA (1% and 7.5%) showed best performance regarding restrained shrinkage behavior without significant deterioration of compressive and tensile strengths. This was also verified by performing modified drying shrinkage crack test.
Keywords
Drying shrinkage cracking test; Expansive Admixture (EA); High Performance Fiber reinforced Cementitious Composites (HPFRCC); Ring-Test; Shrinkage; Shrinkage Reducing Agent (SRA);
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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