硅酸盐通报2018，Vol.37Issue(5)：1572-1577,6.
凝灰岩制备水泥混合材的试验研究
Experimental Study on Preparing Cement Admixture from Volcanic Tuff
摘要
Abstract
Methods of XRF, XRD, TG-DTA and SEM were used to characterize the physicochemical properties of volcanic tuff, research on the mechanical and thermal -mechanical complex activation of the samples were also made respectively .Results show that: the contents of silicon and aluminum in the volcanic tuff samples are more than 75％, the samples have good grindability , whose specific surface area can reach more than 300 m 2 /kg after being grinded about 10 min in the experiment; the mechanical activated tuff sample has a good filling effect in the cementitious system , which effect mainly worked in the early hydration period, and the 28 d activity index of mortar (R28 ) is between 54％ to 58％; the thermal-mechanical complex activated tuff sample 's composition and structure changed evidently , which has favorable effect on the cementitious system both in the early and further hydration period , it's 28 d activity index of mortar can reach more than 70％.关键词
凝灰岩/火山灰活性/热活化/水泥混合材Key words
volcanic tuff/pozzolanic activity/thermal activation/cement admixture分类
化学化工引用本文复制引用
何仕碧,陈太红,安辛友,杨辉,刘燕..凝灰岩制备水泥混合材的试验研究[J].硅酸盐通报,2018,37(5):1572-1577,6.基金项目
四川省教育厅自然科学基金重点项目(16ZA0170) （16ZA0170）
西华师范大学英才基金(17YC501) （17YC501）
