WO 2023/003305 A1

High-strength fly ash cement composition using coal gasifier fly ash

(22) 18.07.2022

(43) 26.01.2023

(57) The present invention relates to a high-strength fly ash cement composition using a coal gasifier fly ash and, more particularly, to a fly ash cement composition capable of reinforcing the low initial strength of fly ash cement, which is a weakness thereof, by mixing a coal gasifier fly ash, which has a higher specific surface area and calcium oxide content than general coal-fired fly ash, with Portland cement at a specific amount, and capable of realizing an initial and long-term compressive strength superior to that of Type 1 Portland cement.

(71) Moon, Bo Kyung, Chungcheongnam-do (KR); Kim, Chang Hyeon, Seoul (KR); Lee, Chang Yong, Gyeonggi-do (KR); Shim, Hye Rim, Gyeonggi-do (KR)

(84) ARIPO (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, 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)


Related articles:

Issue 2018-9 WO 2018/079868 A1

(22) 26.10.2016 (43) 03.05.2018 (57) One embodiment of the present invention provides a green cement composition comprising Portland cement, carbon minerals, an early strength type expansion agent,...

Issue 2018-4 WO 2018/015873 A1

(22) 18.07.2017 (43) 25.01.2018 (57) Aspects of the present disclosure provides a dry cement composition including a mixture of Portland cement and fly ash, wherein said Portland cement is present in...

Issue 2023-3 EP 4 140 969 A1

(22) 26.08.2022 (43) 01.03.2023 (57) The present invention relates to a composition to be used as an additive for mortars, preferably for mortars for the bedding of railway platforms, preferably...

Issue 2018-7-8 KR101849927 (B1)

(22) 04.07.2017 (43) 20.04.2018 (57) The present invention relates to a toughening agent composition for ternary mixed cement and a ternary mixed cement comprising the same, wherein the ternary...

Issue 2020-7-8 NZ755772 (A)

(22) 19.09.2017 (43) 27.03.2020 (57) Disclosed is a cement composition that retains properties as a mixing material such as improving fluidity and contributing to a strength development, said cement...