Kim, Hoang, Vinh Bui, Manh Tran, and Tri Ha. 2010. “OPTIMIZATION MIX PROPORTION FOR ULTRA HIGH STRENGTH SELF COMPACTING CONCRETE”. VNUHCM Journal of Science and Technology Development 13 (2), 5-15. https://doi.org/https://doi.org/10.32508/stdj.v13i2.2106.