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http://dx.doi.org/10.5762/KAIS.2017.18.2.689

A Study on the Properties of High-Fluidity Concrete with Low Binders Using Viscosity Agent  

Park, Gi-Joon (Korea Institute of Civil Engineering and Building Technology)
Park, Jung-Jun (Korea Institute of Civil Engineering and Building Technology)
Kim, Sung-Wook (Korea Institute of Civil Engineering and Building Technology)
Lee, Dong-Gyu (Research & Development Center, Dongnam)
Publication Information
Journal of the Korea Academia-Industrial cooperation Society / v.18, no.2, 2017 , pp. 689-696 More about this Journal
Abstract
The practical applications of ordinary high-fluidity concrete have been limited due to several drawbacks, such as high hydration heat, high amount of shrinkage, and non-economic strength development. On the other hand, due to its advantages, such as improvement of construction quality, reduction of construction cost and period, the development of high-fluidity concrete is a pressing need. This study examined the properties of high-fluidity concrete, which can be manufactured on the low binders using a viscosity agent to prevent the segregation of materials. The optimal viscosity agent was selected by an evaluation of the mechanical properties of high-fluidity concrete among six viscosity agents. The acrylic type and urethane type viscosity agents showed the best performance within the range where no material separation occurred. The mechanical properties were evaluated to examine the optimal amount of AC and UT viscosity agent added by mixing two viscosity agents according to the adding ratio and blending them together with high performance water reducing agent. When the ratio of the AC : UT viscosity agents was 5:5, it was most suited for high-fluidity concrete with low binders by increasing the workability and effect of the reducing viscosity.
Keywords
High fluidity concrete; Low binders; Viscosity agent; Slump flow; V-Lot test;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
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