不同煅烧制度对炭质页岩火山灰活性的影响  

Effect of different calcination systems on the activity of carbonaceous shale pozzolan

作　　者：张洪波 高翠翠[2] 王智[3] 徐创霞 ZHANG Hongbo;GAO Cuicui;WANG Zhi;XU Chuangxia(Sichuan Institute of Building Research,Chengdu 610081,China;Department of Materials Engineering,Sichuan Architecture Vocational and Technical College,Deyang 618000,China;Collge of Materials Science and Engineering,Chongqing University,Chongqing 400045,China)

机构地区：[1]四川省建筑科学研究院有限公司,四川成都610081 [2]四川建筑职业技术学院材料工程系,四川德阳618000 [3]重庆大学材料科学与工程学院,重庆400045

出　　处：《四川建筑科学研究》2021年第1期69-73,共5页Sichuan Building Science

摘　　要：采用高温煅烧的方式对炭质页岩进行活性的激发,研究了不同煅烧制度对炭质页岩火山灰活性的影响。利用差热分析法对炭质页岩的煅烧温度做出初步确定,并进一步研究了升温速度、保温时间以及冷却方式等不同煅烧制度对炭质页岩活性的影响。结果表明:炭质页岩的活性来自于煅烧过程中,其内部粘土矿物(伊利石、绿泥石)分解出无定形的活性SiO2和活性Al2O3,最佳煅烧温度为800℃,最佳升温速度为10℃/min,保温时间为30 min,采用自然冷却的方式。High temperature calcination was used to stimulate the activity of carbonaceous shale, and the influence of different calcination systems on the activity of carbonaceous shale pozzolan was studied. The calcining temperature of carbonaceous shale was preliminarily determined by differential thermal analysis, the effects of different calcination systems, such as heating rate, holding time and cooling method, on the activity of calcined carbonaceous shale were further studied.The results show that the activity of calcined carbonaceous shale comes from the calcining process. The internal clay minerals(illite, chlorite) are decomposed into amorphous active SiO2 and active Al2O3. The best calcination temperature is 800 ℃, the best heating rate is 10 ℃/min, the holding time is 30 min, and the natural cooling method is adopted.

关 键 词：煅烧制度 炭质页岩 活性 影响 

分 类 号：TU52[建筑科学—建筑技术科学]