Cement kiln dust (CKD)-based and lime kiln dust (LKD)-based cementitious materials, concrete, and related techniques
(22) 30.03.2023
(43) 03.10.2024
(57) Cement kiln dust (CKD)-based and lime kiln dust (LKD)-based cementitious materials, concrete, and related techniques are disclosed. In accordance with some embodiments, a cementitious material may be produced by intergrinding (1) at least one of CKD which has been pre-treated with polyvinyl alcohol (PVA) powder and LKD which has been pre-treated with PVA powder, (2) raw perlite ore, and (3) a polycarboxylate material. In accordance with some embodiments, expanded perlite wastes also may be included in the cementitious material, In at least some cases, the cementitious material may be provided as an all-in-one powder blend. In accordance with some embodiments, concrete may be produced by mixing the cementitious material with ordinary Portland cement (OPC), water, and at least one of sand and rock.
(71) Green Cement Inc. (US), South Jordan, Utah 84095 (US).
(84) ARIPO (BW, CV, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SC, 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, F1, FR, GB, GR, HR, HU, 1E, IS, IT, LT, LU, LV, MC, ME, 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).
