This study aimed to analyzed the refining methods and replacement ratios of desulfurized gypsum from high volume blast furnace slag mortar and the engineering characteristics of cement mortar in relation to aggregate kinds. As factors of the experimen...
This study aimed to analyzed the refining methods and replacement ratios of desulfurized gypsum from high volume blast furnace slag mortar and the engineering characteristics of cement mortar in relation to aggregate kinds. As factors of the experiment, in case of desulfurized gypsum depending on the refining method Raw material, 0.3 mm Sieving, 500℃ Heating were used, and the replacement ratios were set at 5 levels of 0, 5, 10, 15, and 20 %. For aggregate kinds, natural fine aggregate and recycled fine aggregate were used and compared, respectively. Overall, the best refining method of desulfurized gypsum was found to be 0.3 mm sieving analysis and within 5 % of replacement ratios the aggregate was best for natural fine aggregate considering flow, air contents, and compressive strength