Park, J. W., Chu, Y. S., Lee, J. K., Sung, H., Seo, S. K., and La, Y. H., “Physical
Properties of ALC used Desulfurization Gypsum”, Proceeding of Korea Concrete Institute,
Korea Concrete Institute, Jeju island, Korea, Vol. 26, No. 1, 2014, pp. 423-424.