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http://dx.doi.org/10.5762/KAIS.2015.16.5.3602

An Experimental Study on Charateristics of Autogenous Shrinkage of HPFRCC considering Early Age Coefficient of Thermal Expansion  

Park, Jung-Jun (Korea Institute of Civil Engineering and Building Technology)
Moon, Jae-Heum (Korea Institute of Civil Engineering and Building Technology)
Park, Gi-Joon (Korea Institute of Civil Engineering and Building Technology)
Lee, Jang-Hwa (Korea Institute of Civil Engineering and Building Technology)
Kim, Sung-Wook (Korea Institute of Civil Engineering and Building Technology)
Publication Information
Journal of the Korea Academia-Industrial cooperation Society / v.16, no.5, 2015 , pp. 3602-3609 More about this Journal
Abstract
HPFRCC is characterized by a very low water-to-binder ratio which induce extremely large autogenous shrinkage at early age. The restriction of such autogenous shrinkage through the use of forms and reinforcing bars will increase substantially the risk of excessive residual stresses and shrinkage cracking. The exact understanding of the shrinkage behavior and studies on solutions to reduce shrinkage should be imperatively undertaken for further application of HPFRCC to real structures. Therefore, this paper investigated the mechanical properties of HPFRCC with respect to the eventual introduction of expansive admixture(EA) and shrinkage reducing agent (SRA) in the mixture. Autogenous shrinkage test was conducted considering the coefficient of thermal expansion (CTE) measured at early age so as to examine the effects of EA and SRA on the autogenous shrinkage behavior of HPFRCC.
Keywords
Autogenous shrinkage; Coefficient of thermal expansion; Early age; HPFRCC;
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Times Cited By KSCI : 3  (Citation Analysis)
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