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http://dx.doi.org/10.14190/JRCR.2018.6.2.94

Effect of Cement Contents and Combinations of Accelerators on Strength Development of Concrete Cured at 10℃  

Song, Young-Chan (Architectural Engineering & Research Team, DAELIM Industrial Co., Ltd)
Lee, Tea-Gyu (Architectural Engineering & Research Team, DAELIM Industrial Co., Ltd)
Kim, Yong-Ro (Architectural Engineering & Research Team, DAELIM Industrial Co., Ltd)
Seo, Chi-Ho (Department of Architectural Engineering, Konkuk University)
Publication Information
Journal of the Korean Recycled Construction Resources Institute / v.6, no.2, 2018 , pp. 94-99 More about this Journal
Abstract
The purpose of this study is to investigate the effect of combinations of different accelerators mixed on the early age strength development of concrete of 21 to 27MPa in the curing temperature of $10^{\circ}C$ compared with existing early strength agent. The present study was assessed the early strength development of combinations of three different accelerating admixtures with early strength type agent comparing to single accelerating admixture with early strength type agent. As a result of this study, the effect of $CaBr_2+NaSCN+DEA$ combination on strength development showed better than $CaBr_2$ or NaSCN alone with early strength type agent. Therefore, we observed that concrete using $CaBr_2+NaSCN+DEA$ combination with early strength agent was achieved 5MPa 12hours earlier than use of $CaBr_2$ or NaSCN alone.
Keywords
Strength development; Early strength agent; Accelerating admixture;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
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1 Aggoun, S., Cheikh-Zouaoui, M., Chikh, N., Duval, R. (2008). Effect of some admixtures on the setting time and strength evolution of cement pastes at early ages, Construction and Building Materials, 22(2), 106-110.   DOI
2 Han, C.G., Hwang, I.S., Lee, S.H., Kim, G.D. (2004). Engineering properties of concrete using AE water reducing agent of early-strength type, Journal of the Architectural Institute of Korea, 20(6), 99-106 [in Korean].
3 Jun, M.H., Bang, J.D., Lee, B.S., Park, S.S., Park, J.Y., Cho, G.H. (2013). Analysis on stripping time of form of high-early-strength concrete incorporating binder and admixture, LHI Journal, 4(2), 193-200 [in Korean].
4 Kim, G.Y., Kim, Y.R., Park, J.H. (2016). Investigation of early-age concrete strength development using hardening accelerator, Journal of the Korea Concrete Institute, 28(3), 309-316 [in Korean].   DOI
5 Park, G.Y., Kim, Y.R., Kim, G.Y. (2013). Early strength development properties of concrete using early strength improvement type cement, Journal of the Korea Institute of Building Construction, 13(3), 227-334 [in Korean].   DOI
6 Park, S.J., Yoo, J.K. (2008). A study on the evaluation of concrete strength at early age for field application using ultrasonic velocity and rebound test method, Journal of the Architectural Institute of Korea, 24(11), 101-108 [in Korean]
7 Min, T.B., Cho, I.S., Lee, H.S. (2013). Fundamental study on the strength development of cement paste using hardening accelerator and high-early-strength cement, Journal of the Korea Institute of Building Construction, 13(4), 407-415 [in Korean].   DOI