(57) The invention relates to a cement formulation based on aluminium sulphate comprising a specific proportion of Ye’elimite crystals with improved properties of mechanical resistance, setting and CO2 emissions. The invention also relates to a concrete obtained by mixing said formulation with water and plaster, which performs better during the first stages compared to the concrete obtained from Portland cement.
(71) Universidad Nacional de Colombia, Carrera 45 No. 26 - 85, Bogota (CO); Cementos Argos S.A., Calle 7D No. 43A – 99, Medellin (CO)
(84) ARIPO (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW), Eurasian (AM, AZ, BY, KG, KZ, RU, TJ, TM), European (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR), OAPI (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG)