CAJ | 학술논문

以废弃混凝土、石灰石、砂岩、铁矿石、煤粉为原料，采用普通煅烧工艺烧制了不同煅烧温度下的水泥熟料，利用XRD、SEM等表征手段考察了不同目数的混凝土对水泥煅烧过程中熟料主要矿物形成的影响，并将煅烧生成的水泥熟料与标准熟料进行了对比分析。结果表明，在不同煅烧温度下烧成的水泥熟料中主要矿物的XRD特征峰明显，矿物形成正常，并与对比试样水泥熟料的矿物化学成分相近。不同目数混凝土代替部分生料烧制的水泥熟料组成及形貌的变化有明显的区别，60~80目烧制的水泥熟料因Al、Fe和Si元素含量较高而出现主要矿物黏结和熔蚀现象，阻碍C3S的形成，水泥矿物发育较差，而大于120目烧制的水泥熟料矿物发育良好，主要矿物黏结和熔蚀较少，但f-CaO量高于标准熟料。
이폐기혼응토、석회석、사암、철광석、매분위원료，채용보통단소공예소제료불동단소온도하적수니숙료，이용XRD、SEM등표정수단고찰료불동목수적혼응토대수니단소과정중숙료주요광물형성적영향，병장단소생성적수니숙료여표준숙료진행료대비분석。결과표명，재불동단소온도하소성적수니숙료중주요광물적XRD특정봉명현，광물형성정상，병여대비시양수니숙료적광물화학성분상근。불동목수혼응토대체부분생료소제적수니숙료조성급형모적변화유명현적구별，60~80목소제적수니숙료인Al、Fe화Si원소함량교고이출현주요광물점결화용식현상，조애C3S적형성，수니광물발육교차，이대우120목소제적수니숙료광물발육량호，주요광물점결화용식교소，단f-CaO량고우표준숙료。
Taken the wasteconcrete,limestone,sandstone,iron ore and coal powder as raw materials,the cement clinkers were calcined at different temperatures with common calcination method,the impacts of different meshes of concretes on cement calcination process and main minerals information were examined with XRD and SEM tools ,and the calcined cement clinkers were compared and analyzed with standard clinker.As the results showed the XRD peak values of main minerals in the cement clinkers calcined atdifferent temperatures were obvious,the minerals were informed normally,and the chemical ingredients of minerals were approximate to sample cement clinker.The changes of composition and shape were great while different meshes concretes replaced partly cement clinker which was calcined by raw materials.The adhesive and corrosive phenomenon of main minerals was presented ,as the cement clinkers calined by 60~80 meshes con-cretes contained high contents of Al,Fe and Si elements,the information of C3S was blocked and the cement mineral was informed poorly. The adhesive and corrosive phenomenon of main mineral appeared less while the meshes were bigger than 120 ,the cement mineral was in-formed better,but the contents of f-CaO was higher than standard clinker.