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http://dx.doi.org/10.5345/JKIC.2010.10.5.113

Field Application of 80MPa High Strength Fire Resistant Concrete using Ternary Blended Cement  

Kim, Seong-Deok (Construction Technology Reserch Dept., Land & Housing Institute, LH)
Kim, Sang-Yun (Construction Technology Reserch Dept., Land & Housing Institute, LH)
Bae, Ki-Sun (Construction Technology Reserch Dept., Land & Housing Institute, LH)
Park, Su-Hee (Construction Technology Reserch Dept., Land & Housing Institute, LH)
Lee, Bum-Sik (Construction Technology Reserch Dept., Land & Housing Institute, LH)
Publication Information
Journal of the Korea Institute of Building Construction / v.10, no.5, 2010 , pp. 113-119 More about this Journal
Abstract
Fire resistance and field tests for high-strength concrete(HSC) of 80MPa were carried out to evaluate whether or not it shows the same material properties even in the field condition of being mass-produced and supplied. As a result, it was found that fire resistant HSCs containing composite fiber(NY, PP) of 0.075% have great resistance to fire and spalling. In the field test, before the pumping air contents, slump flow, U-box, L-flow, compressive strength, gap of hydration temperature of interior and exterior of specimen and placing ratio per hour satisfied the required properties of HSC. However, after the pumping of HSC, as slump flow and L-flow were slightly less than required criterion, they need to be improved. In terms of hydration temperature of HSC, it was found to satisfy the related criterion. Packing ability as well as placing ratio per hour of HSC, which was about $44m^3$, show outstanding results. If slump flow of developed ternary HSC is improved after the pumping it can be useful for the construction of high-rise buildings.
Keywords
High Strength Concrete; Spalling Properties; Concrete Pumping; Packing ability;
Citations & Related Records
Times Cited By KSCI : 4  (Citation Analysis)
연도 인용수 순위
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