煤矸石掺加低品位石灰石煅烧高活性混合材的研究  

Study on the High-Active Calicinated Cement Addition with Low-Grade Limestone

作　　者：赵海晋 高建荣 阎冬生 

机构地区：[1]山西综合职业技术学院材料工程系,山西太原030006 [2]山西汾西矿业(集团)有限责任公司水泥厂,山西介休031200

出　　处：《建材技术与应用》2010年第1期4-6,共3页Research and Application of Building Materials

摘　　要：将未燃煤矸石掺加低品位石灰石后,在1100℃和1200℃下进行了煅烧试验。煅烧后的改性煤矸石有C2S、C3A等胶凝矿物形成,胶凝活性提高。用作水泥混合材时,活性指数可达89%。将掺加20%石灰石的煤矸石在1200℃下煅烧,应用水泥熟料煅烧热效应计算,该种改性煤矸石的理论热耗为310kJ/kg,仅为水泥熟料理论热耗的16%。If the unburnt coal gangue is added to with low -grade limestone and given a test under between 1 100 ℃ and 1 200 ℃, there will be cementititious minerals such as C2S and C3A forming in the caleinated, modified gangue and as a result, its activity is enhanced. When they are used as cement admixture, their active index can reach up to 89 %. In this research, when calcinated with 20 % limestone under 1 200 ℃, this modified gangue has a theoretical thermal consumption of 310 kJ/kg if calculated according to the thermal effect of cement clinker, only 16 % of the theoretical heat consumption of cement clinker.

关 键 词：水泥混合材料 未燃煤矸石 低品位石灰石 

分 类 号：TQ172.4[化学工程—水泥工业]