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http://dx.doi.org/10.4334/JKCI.2013.25.3.295

Characteristics of Strength Development of Ultra-High Performance Concrete according to Curing Condition  

Park, Jong-Sup (SOC Research Institute, Korea Institute of Construction Technology)
Kim, Young-Jin (Global Technology Cooperation Center, Korea Institute of Construction Technology)
Cho, Jeong-Rae (SOC Research Institute, Korea Institute of Construction Technology)
Jeon, Se-Jin (Dept. of Civil Systems Engineering, Ajou University)
Publication Information
Journal of the Korea Concrete Institute / v.25, no.3, 2013 , pp. 295-304 More about this Journal
Abstract
Ultra-High Performance Concrete (UHPC) has recently been one of the most active research fields in Korea as well as in foreign countries, because it can contribute to a longer life and economic efficiency of structures. Although precast-type UHPC fabricated in a factory is preferable in terms of quality control and reduction of construction period, there exist, even in the precast structure, some parts that need to be cast in-place such as the joints between precast segments. In the cast-in-place UHPC, however, it is probable that an optimum curing condition can hardly be realized in contrast to the factory production. In this study, therefore, the trend of compressive strength development of UHPC was experimentally investigated by assuming various inferior curing conditions that may be anticipated at a construction site. Concrete specimens were fabricated and cured under different conditions with the variables such as curing temperature, delay time before the initiation of curing, duration of curing time and moisture condition. The strengths were compared with those of the specimens cured by standard high temperature steam. Through the analysis of the test results, some minimum requirements for curing have been proposed that are required when the UHPC is cast in-place. It is expected, through this study, that practical use of UHPC in construction sites can be increased.
Keywords
ultra-high performance concrete; cast-in-place; strength; curing;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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1 Honma, D., Kojima, M., and Mitsui, K., "Curing Methods and Strength Development of Ultra-High Strength Concrete with 150-200 N/mm2(150-200N/mm2級超高強度コンク リートの養生方法と強度発現性)," Proceedings of the Japan Concrete Institute, Vol. 34, No. 1, 2012, pp. 1234-1239.
2 Korean Agency for Technology and Standards (KATS), Testing Method for Time of Setting of Concrete Mixture by Penetration Resistance (KS F 2436), KATS, Korea, 2007, 9 pp.
3 Korea Institute of Construction Technology (KICT), Development of Design and Construction System Technology for Hybrid Cable Stayed Bridge, KICT 2011-076, KICT, Korea, 2011, 253 pp.
4 Korea Concrete Institute (KCI), Design Recommendations for Ultra-High Performance Concrete K-UHPC, KCI-M- 12-003, KCI, Korea, 2012, 66 pp.
5 ACI Committee 234, Guide for the Use of Silica Fume in Concrete (ACI 234R-96), American Concrete Institute (ACI), Michigan, US, 1996 (Reapproved 2000), 51 pp.
6 Silica Fume Association (SFA), Silica Fume User's Manual, FHWA-IF-05-016, SFA, Virginia, US, 2005, 183 pp.
7 Ishii, T., Nishio, H., Matsuyama, T., Miyajima, A., Yokohata, K., Gotou, M., Xin, J., and Hirai, Y., "Manufacture and Construction of a PC Through Girder Type Pedestrian Bridge Using Ultra High Strength Fiber Reinforced Concrete," Proceedings of 8th International Symposium on Utilization of High-Strength and High-Performance Concrete, Japan, 2008, pp. 1270-1275.
8 Koh, K. T., Park, J. J., Ryu, G. S., and Kang, S. T., "Effect of the Compressive Strength of Ultra-High Strength Steel Fiber Reinforced Cementitious Composites on Curing Method," Journal of the Korean Society of Civil Engineers, Vol. 27, No. 3A, 2007, pp. 427-432.   과학기술학회마을
9 Ahlborn, T. M., Mission, D. L., Peuse, E. J., and Gilbertson, C. G., "Durability and Strength Characterization of Ultra- High Performance Concrete under Variable Curing Regimes," Proceedings of 2nd International Symposium on Ultra High Performance Concrete, Germany, 2008, pp. 197-204.
10 Schachinger, I., Hilbig, H., and Stengel, T., "Effect of Curing Temperature at an Early Age on the Long-Term Strength Development of UHPC," Proceedings of 2nd International Symposium on Ultra High Performance Concrete, Germany, 2008, pp. 205-212.
11 Nakayama, H., Ishinaka, M., Naruse, H., Fujii, K., and Nakase, H., "Development of Processing Technology of Super High-Strength Precast Concrete Column," Proceedings of 8th International Symposium on Utilization of High-Strength and High-Performance Concrete, Japan, 2008, pp. 959-966.
12 Matsubara, N., Ohno, T., Sakai, G., Watanabe, Y., Ishii, S., and Ashida, M., "Application of a New Type of Ultra High Strength Fiber Reinforced Concrete to a Prestressed Concrete Bridge," Proceedings of 2nd International Symposium on Ultra High Performance Concrete, Germany, 2008, pp. 787-794.