Texaco气化炉渣制备硅酸盐水泥的研究  被引量:8

Preparation of Silicate Cement with Texaco Gasification Slag

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作  者:袁蝴蝶[1,2] 尹洪峰[1,2] 汤云[1,2] 辛亚楼 赖鹏辉 

机构地区:[1]西安建筑科技大学无机非金属材料实验教学示范中心,西安710055 [2]西安建筑科技大学材料与矿资学院,西安710055

出  处:《硅酸盐通报》2017年第9期3053-3056,共4页Bulletin of the Chinese Ceramic Society

基  金:国家自然科学基金委与神华集团联合资助项目(U1261118);陕西省榆林市产学研合作项目;陕西省教育厅专项科研计划资助项目(15JK1421)

摘  要:以Texaco气化炉渣、石灰石、粘土和铁粉为原料制备硅酸盐水泥熟料,分别采用X射线衍射仪、金相显微镜对该熟料的物相以及岩相结构进行分析,掺加适量石膏后,依据国标检测水泥的标准稠度用水量、安定性、凝结时间以及龄期强度,推断出制备水泥的标号。结果表明:(1)制备的水泥熟料主要矿相为硅酸三钙、硅酸二钙、铝酸三钙、铁酸钙。(2)当粘土加入量为5%,烧成温度为1450℃时,烧制的水泥28 d抗折强度、抗压强度分别为8.0MPa、50.9 MPa,可推断其标号为42.5水泥。Silicate cement clinker was prepared using gasification slag from Texaco gasifier,limestone,clay and iron powder as raw materials. The phase composition morphology and microstructure of the clinker were investigated by X-ray powder diffractometry and metallurgical microscope. Adding proper gypsum into the cement clinker,of which the water requirement of normal consistency,stability,setting time and cement grade were measured according to the Chinese standard. The results show that( 1) The main compositions of the cement clinker are C3 S,C2S,C3 A and C4 AF,which conforms to the chemical composition of cement clinker;( 2) The cement 28 d compressive strength and flexural strength is 8. 0MPa,50. 9 MPa,respectively,prepared with 5% clay at 1450 ℃,and it is inferred to be with the labeled 42. 5.

关 键 词:Texaco气化炉渣 矿物相 水泥熟料 强度 

分 类 号:TQ545[化学工程—煤化学工程]

 

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