Browse > Article
http://dx.doi.org/10.4334/JKCI.2012.24.2.137

Strength Development of Blended Sodium Alkali-Activated Ground Granulated Blast-Furnace Slag (GGBS) Mortar  

Kim, Geon-Woo (School of Architecture, Chonnam National University)
Kim, Byeong-Jo (School of Architecture, Chonnam National University)
Yang, Keun-Hyeok (Dept. of Architectural Engineering, Kyonggi University)
Song, Jin-Kyu (School of Architecture, Chonnam National University)
Publication Information
Journal of the Korea Concrete Institute / v.24, no.2, 2012 , pp. 137-145 More about this Journal
Abstract
Strength model for blasted furnace slag mortar blended with sodium was investigated in this study. The main parameters of AAS (alkali activated slag) mortar were dosage of alkali activator, water to binder ratio (W/B), and aggregate to binder ratio (A/B). For evaluating the property related to the dosage of alkali activator, sodium carbonate ($Na_2CO_3$) of 4~8% was added to 4% dosage of sodium hydroxide (NaOH). W/B and A/B was varied 0.45~0.60 and 2.05~2.85, respectively. An alkali quality coefficient combining the amounts of main compositions of source materials and sodium oxide ($Na_2O$) in sodium hydroxide and sodium carbonate is proposed to assess the compressive strength of alkali activated mortars. Test results clearly showed that the compressive strength development of alkali-activated mortars were significantly dependent on the proposed alkali quality coefficient. Compressive strength development of AAS mortars were also estimated using the formula specified in the previous study, which was calibrated using the collected database. Predictions from the simplified equations showed good agreements with the test results.
Keywords
ground granulated blast-furnace slag; sodium hydroxide; sodium carbonate; alkali-activator;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
1 Song, S., Sohn, D., Jennings, H. M., and Mason, T. O., "Hydration of Alkali-Activated Ground Granulated Blast Furnace Slag," Journal of Materials Science, No. 35, No. 1, 2000, pp. 249-257.   DOI   ScienceOn
2 Shi, C., Krivenko, P. V., and Roy, D. M., Alkali-Activated Cements and Concretes, Taylor and Francis, New York, 2006, 370 pp.
3 Roy, D. M., "Alkali-Activated Cements : Opportunities and Challenges," Cement and Concrete Research, Vol. 29, No. 2, 1999, pp. 249-254.   DOI   ScienceOn
4 Wang, S., Scrivener, K. L., and Pratt, P. L., "Factors affecting the Strength of Alkali-Activated Slag," Cement and Concrete Research, Vol. 25, No. 6, 1994, pp. 1033-1043.
5 Wang S., Pu, X. C., Scrivener, K. L., and Pratt, P. L., "Alkali-Activated Slag Cement and Concrete: a Review of Properties and Problems," Advances in Cement Research, Vol. 7, No. 27, 1995, pp. 93-102.   DOI   ScienceOn
6 Hardijito, D., Wallah, S. E., Sumajouw, D. M. J., and Rangan, B. V., "On the Development of Fly Ash-Based Geopolymer Concrete," ACI Material Journal, Vol. 101, No. 6, 2004, pp. 467-472.
7 Kovalchuk, G., Fernandez-Jimenez, A., and Palomo, A., "Alkali-Activated Fly Ash: Effect of Thermal Curing Conditions on Mechanical and Microstructural Development - Part II," Fuel, Vol. 86, No. 3, 2007, pp. 315-322.   DOI   ScienceOn
8 Purdon, A. O., "The Action of Alkalis on Blast-Furnace Slag," Journal of the Society of Chemical Industry, No. 59, 1940, pp. 191-202.
9 송진규, 양근혁, 김건우, 김병조, "고로슬래그와 나트륨계열의 활성화제를 이용한 무시멘트 모르타르의 특성," 대한건축학회, 26권, 6호, 2010, pp. 61-68.
10 Jolicoeur, C., Simard, M. A., Sharman, J., Zamojska, R., Dupuis, M., Spiratos, N., Douglas, E., and Malhotra, V. M., "Chemical Activation of Blast-Furnace Slag, An Overview and Systematic Experimental Investigation," Advances in Concrete Technology, Ministry of Supply and Services, Canada, 1992, pp. 471-502.
11 Yang, K. H., Song, J. K., Ashour, A. F., and Lee, E. T., "Property of Cementless Mortars Activated by Sodium Silicate," Construction and Building Materials, Vol. 22, No. 9, 2008, pp. 1981-1989.   DOI   ScienceOn
12 Yuan, R., Gao, Q., and Ouyang, S., "Study on Structure and Latent Hydraulic Activity of Slag and Its Activation Mechanism," Journal of Wehan University of Technology (in China), China, 1987, pp. 297-303.
13 Palomo, A., Grutzeck, M. W., and Blanco, M. T., "Alkali Activated Fly Ashes: A Cement for the Future," Cement and Concrete Research, Vol. 29, No. 8, 1999, pp. 1323-1329.   DOI   ScienceOn
14 Pacheco-Torgal, F., Castro-Gomes, J., and Jalali, S., "Alkali-Activated Binders : A Review. Part 2. about Materials and Binder Manufacture," Construction and Building Materials, Vol. 22, No. 7, 2008, pp. 1315-1322.   DOI   ScienceOn