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http://dx.doi.org/10.4334/JKCI.2017.29.2.141

An Experimental Study on the Strength Development of High Strength Concrete in Various Curing Conditions at an Early-age  

Kwon, Yeong-Ho (Dept. of Architecture and Fire Service Administration, Dong Yang University)
Lee, Tea-Wang (Hanphil ENG)
Publication Information
Journal of the Korea Concrete Institute / v.29, no.2, 2017 , pp. 141-148 More about this Journal
Abstract
This study is experimentally investigated the effects of various steam curing parameters on the early-age compressive strength development of high strength concrete (over 40 MPa) in the precast plant production. High strength concrete are used only ordinary portland cement (type I) and water-cement ratio selected 3cases (25%, 35% and 45%). Also, steam curing parameters are as followings ; (1) Preset period 2cases (3 hours and 6 hours) (2) Maximum curing temperature 3cases ($45^{\circ}C$, $55^{\circ}C$ and $65^{\circ}C$) (3) Maintenance time of curing temperature 3cases (4 hours, 6 hours and 8 hours) (4) Maximum rate of heating and cooling $15^{\circ}C$/hr. Initial setting time and adiabatic temperature rising ratio of these concrete according to water-cement ratio are tested before main tests and examined the compressive strength development for the steam curing parameters. Also compressive strength are compared with optimum steam curing condition and standard curing at test ages. As test results, the optimum steam curing conditions for high strength concrete(over 40 MPa) are as followings. (1) Preset period ; over initial setting time of concrete (2) Maximum curing temperature ; bellow $55^{\circ}C$ (3) Maintenance time of curing temperature ; bellow 6hours. Also strength development of steam curing concrete show in the reversed strength at 28 days. It is to propose an efficient steam curing condition for high strength concrete in the precast method.
Keywords
Initial setting time; adiabatic temperature rising; preset period; maximum curing temperature and maintenance;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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1 Park, H. L., Kim, S.J., Paik, M.S., Lee, H.K., Park, B.K., and Jung, S.J., "An Experimental Study on Tem- perature Property of High-strength Mass Concrete Cured by Steam", Proceedings of the Korea Concrete Institute, Vol.19, No.2, 2007, pp.593-596.
2 Yoon, S., Jung, Y.M., Jeong, Y., Lee, S.Y., and Kim, Y.B., "The Effect of Steam Curing on the Compressive Strength and Durability in High Strength Concrete", Proceedings of the Korea Concrete Institute, Vol.19, No.1, 2007, pp.697-700.
3 Kwon, H.S., Choi, E.K., Lim, N.K., Lee, Y.D., and Jung, S.J., "An Effects of the Strength Development of High Strength Mortar under Temperature History by Steam Curing", Journal of the Korea Institute of Building Construction, Vol.8, No.4, 2008, pp.115-121.   DOI
4 Park, J.H., Kim, S.J., Paik, M.S., Lee, S.H., Park, B.K., and Jung, S.J., "An Experimental Study on Strength Characteristics of Mass Concrete Cast with High-Strength Concrete for Precast Application", Proceedings of the Korea Concrete Institute, Vol.19, No.2, 2007, pp.49-52.
5 Kim, M.H., Lee, S.H., Kang, S.P., Khil, B.S., and Joo, J.H., "Development of Early-Strength of High Strength Concrete According to Curing Temperature for Application of System Form", Journal of the Korea Concrete Institute, Vol.13, No.4, 2001, pp.536-543.
6 Park, J.S., Kim, Y.J., Cho, J.R., and Jeon, S.J., "Early-Age Strength of Ultra-High Performance Concrete in Various Curing Conditions", Journal of Materials published by MDPI AG, Basel, Switzerland, Vol. 8, 2015, pp.5537-5553.
7 Nagao, Y., and Suzuki, K., "Basic Properties and Utilization of Steam-Cured Concrete using Ground Granu- lated Blast-Furnace Slag", Nippon Steel & Sumitomo Metal Technical Report, No.109, 2015, pp.125-129.
8 Hwang, S.D., Khatib, R., Lee, H.K., Lee, S.H., Khayat, K.H., "Optimization of Steam-Curing Regime for High-Strength, Self-Consolidating Concrete for Precast, Prestressed Concrete Application", Journal of Precast/prestressed Concrete Institute (PCI), Vol.57, No.3, 2012, pp.48-62.
9 Song, Y.W., Yoon, S., Jeong, Y., Jeon, Y.S., Gong, M. H., and Chung, G.T., "A Study for Strength Proper- ties by Temperature Change of Steam Curing of Concrete using Blast-Furnace Slag of High Volume", Proceedings of the Korea Concrete Institute, Vol.24, No.2, 2012, pp.183-184.
10 Lee, M. K., Kim, K. S., Lee, K. H., and Jung, S. H., "Strength of Recycled Concrete with Furnace Slag cement under Steam Curing Condition", Journal of the Korea Concrete Institute, Vol.17, No.4, 2005, pp.613-620.   DOI