Ming-Gin Lee*, Yishuo Huang, and Yu-Cheng Kan Department of Construction Engineering, Chaoyang University of Technology, Wufong, Taichung County 41349, Taiwan, R.O.C.
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This study investigates the effects of steam and microwave curing on the strength developmentThis study investigates the effects of steam and microwave curing on the strength developmentand permeability of concrete. Two steam curing treatments, four microwave curingtimes and four types of concrete mix were used in this study. The test results indicated that microwaveheating could further increase the compressive strength of mortar and concrete. Pozzolanicreaction of silica fume, fly ash and blast-furnace slag was observed to be further promotedby steam-microwave curing. Mortar and concrete samples with 10% silica fume addedresponded well to microwave curing. The strength gain development of mortar and concrete appearedto level off after 40 minutes of microwave curing. Thus, a 40-minute microwave heatingtime appeared to be the optimal time for energy saving consideration. The microwave-curedconcrete did not show an increase in permeability relative to the concrete that was steam-cured,but showed an increase in strength. Thus, microwave heating may be a potentially attractivemethod for accelerating cement hydration.ABSTRACT
Keywords:
microwave heating; steam curing; compressive strength; rapid chloride permeability.
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ARTICLE INFORMATION
Accepted:
2007-07-13
Available Online:
2007-07-01
Lee, M.-G., Huang, Y., Kan, Y.-C. 2007. The strength and rapid chloride permeability of microwave cured concrete. International Journal of Applied Science and Engineering, 5, 53–63. https://doi.org/10.6703/IJASE.2007.5(1).53
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