• Journal of the Korean Recycled Construction Resources Institute
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• v.4 no.4
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• pp.439-445
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• 2016

Recently, a large number of researches about concrete containing high volume fly-ash(HVFA) have been carried to obtain carbon dioxide reduction, resource recycle and durable option in concrete industry. The quality of fly-ash such as chemical composition and fineness has high variability due to the differences of used fuels, operation condition in power plant. The aim of this study is to investigate the performances of fly-ash cement mortar containing different type of fly-ashes. The basic analysis of fly ash such as chemical composition, SEM image analysis were performed. Many mortar specimens were fabricated to evaluate the properties (compressive strength, drying shrinkage and carbonation) of mortar with various fly ash. From the test results, the quality of each fly ash must be considered and fully weighted in fly ash concrete.