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http://dx.doi.org/10.5762/KAIS.2012.13.10.4884

Early-Age Shrinkage and Durability of Shotcrete with Expansive Agent  

Nam-Gung, Kyeong (Dept. of Civil Engineering, Kangwon National University)
Kang, Moon-Sik (Korea Highway Corporation)
Hur, In (Korea Highway Corporation)
Yun, Kyong-Ku (Dept. of Civil Engineering, Kangwon National University)
Publication Information
Journal of the Korea Academia-Industrial cooperation Society / v.13, no.10, 2012 , pp. 4884-4890 More about this Journal
Abstract
In this dissertation, the shrinkage and durability of shotcrete were examined. Analysis and comparison of shrinkage against the strength of shotcrete was investigated after performing actual shotcrete shooting for each mix of different percentage of expansive agent. The research on restrained shrinkage with different percentages of expansive agent used (3%, 7%, 11% and 15%) shows that the maximum shrinkage in all samples occurred in between 13-15 hrs after shotcrete shooting. And it is noticed that increasing the percentage of expansive agent can lower the shrinkage. And hence, the 15% of expansive agent not only lowered the shrinkage But it also lowered the strength.
Keywords
Shotcrete; Shrinkage; Expansive agent;
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  • Reference
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