Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Preparation method of high-activity coal gangue admixture
The invention discloses a preparation method of a high-activity coal gangue admixture, which comprises the following steps: S1: by using coal gangue as a raw material, pre-grinding the coal gangue into powder; S2, performing dry mixing and wet mixing on 80-90% of coal gangue powder, 5-15% of calcium oxide and 5-15% of gypsum; S3, carrying out steam curing on the wet-mixed product for 4-8 hours at the temperature of 70-90 DEG C, and calcining the steam-cured product for 1-4 hours at the temperature of 600-900 DEG C; and S4, naturally cooling the calcined product, and grinding the product into powder to obtain the high-activity coal gangue admixture. The coal gangue admixture prepared by the method has high activity, can meet the requirements of cement-based materials of different ages on activity, is suitable for large-scale popularization and application, and has remarkable economic benefits and social benefits.
本发明公开了一种高活性煤矸石掺合料的其制备方法，包括以下步骤：S1：以煤矸石为原料，将其预磨成粉；S2：将80～90％的煤矸石粉与5～15％的氧化钙和5～15％的石膏进行干混、湿混；S3：将湿混后的产物在70‑90℃条件下蒸养4～8小时，将蒸养后的产物在600～900℃条件下煅烧1～4小时；S4：待煅烧后的产物自然冷却后将其研磨成粉，得到所述高活性煤矸石掺合料。本发明制备得到的煤矸石掺合料具有较高活性，能够满足不同龄期的水泥基材料对活性的要求，适合大规模推广应用，具有显著的经济效益和社会效益。
Preparation method of high-activity coal gangue admixture
The invention discloses a preparation method of a high-activity coal gangue admixture, which comprises the following steps: S1: by using coal gangue as a raw material, pre-grinding the coal gangue into powder; S2, performing dry mixing and wet mixing on 80-90% of coal gangue powder, 5-15% of calcium oxide and 5-15% of gypsum; S3, carrying out steam curing on the wet-mixed product for 4-8 hours at the temperature of 70-90 DEG C, and calcining the steam-cured product for 1-4 hours at the temperature of 600-900 DEG C; and S4, naturally cooling the calcined product, and grinding the product into powder to obtain the high-activity coal gangue admixture. The coal gangue admixture prepared by the method has high activity, can meet the requirements of cement-based materials of different ages on activity, is suitable for large-scale popularization and application, and has remarkable economic benefits and social benefits.
本发明公开了一种高活性煤矸石掺合料的其制备方法，包括以下步骤：S1：以煤矸石为原料，将其预磨成粉；S2：将80～90％的煤矸石粉与5～15％的氧化钙和5～15％的石膏进行干混、湿混；S3：将湿混后的产物在70‑90℃条件下蒸养4～8小时，将蒸养后的产物在600～900℃条件下煅烧1～4小时；S4：待煅烧后的产物自然冷却后将其研磨成粉，得到所述高活性煤矸石掺合料。本发明制备得到的煤矸石掺合料具有较高活性，能够满足不同龄期的水泥基材料对活性的要求，适合大规模推广应用，具有显著的经济效益和社会效益。
Preparation method of high-activity coal gangue admixture
一种高活性煤矸石掺合料的制备方法
WANG JUN (Autor:in) / GUO ZHAOHENG (Autor:in) / YANG WEN (Autor:in) / ZHU XIAOLIANG (Autor:in) / LAI HANG (Autor:in) / SONG WENJING (Autor:in) / MA PENGFEI (Autor:in)
13.04.2021
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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