WO 2024/077681 A1

Preparation method for and use of efficient and environment-friendly composite steel slag activating agent

(22) 03.11.2022

(43) 18.04.2024

(57) A preparation method for an efficient and environment-friendly composite steel slag activating agent. The composite steel slag activating agent is prepared from the following raw materials in parts by mass: 0.2-0,4 parts of a polyol amine, 1-2 parts of a polyol, 0.4-0.6 parts of sodium acetate, 0.1-0.3 parts of graphene, and 0.2-0.6 parts of dihydrate gypsum. The raw materials, in parts by mass, are mixed at room temperature, and are mechanically stirred for 10 minutes to obtain the composite steel slag activating agent. The prepared composite steel slag activating agent can realize the rational utilization of a large amount of a waste steel slag material, and can improve the activity index and stability of the steel slag material after being mixed with cement, and the preparation method therefor is simple and efficient, is suitable for industrial production and is beneficial to reducing the consumption of clinker and inhibiting the emission of carbon dioxide.

(71) Yangtze Delta Region Institute of University of Electronic Science and Technology of China, Huzhou, (CN)

(84) ), ARIPO (B W, CV, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SC, SD, SL, ST, SZ, TZ, UG, ZM, ZW), (AM, AZ, BY, KG, KZ, RU, TJ, TM), AM{ (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, 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)


Related articles:

Issue 7-8/2018 WO 2018/077590 A1

Method for preparing and activating steelwork slags

(22) 06.10.2017 (43) 03.05.2018 (57) The invention relates to a method for preparing and activating steelwork slags, preferably a LD slag, as a hydraulic composite material for the cement industry. In...

Issue 2/2023 CN114591038 (A)

Cement powder and preparation method thereof

(22) 19.04.2022 (43) 07.06.2022 (57) The invention relates to the field of building materials, in particular to cement powder and a preparation method thereof. The cement powder comprises the...

Issue 1/2024 WO 2023/198871 A1

Method for manufacturing cement clinker using stainless steel slag

(22) 14.04.2023 (43) 19.10.2023 (57) In the method for manufacturing cement clinker raw materials which include at least one stainless steel slag material are calcined and burned to produce the cement...


Investigations into the mechanical properties of Portland slag cement based on GBFS and steel slag

1 Introduction Formulations of blended cements based on natural or synthetic inorganic minerals are associated with the conservation of resources, energy and cement along with lowering the clinker...

Issue 7-8/2018 KR101849927 (B1)

An agent for high strength of ternary blended cement and ternary blended cement including the same

(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...