ZEOLITE FORMATION IN CLASS-F FLY-ASH BLENDED CEMENT PASTES

被引:96
作者
LAROSA, JL
KWAN, S
GRUTZECK, MW
机构
[1] Materials Research Laboratory, Pennsylvania State University, University Park, Pennsylvania
关键词
CEMENTS; ZEOLITES; FLY ASH; PASTES; COMPOSITES;
D O I
10.1111/j.1151-2916.1992.tb04228.x
中图分类号
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号
0805 ; 080502 ;
摘要
Zeolite formation in Class F fly ash blended cement pastes is under investigation. A Na-P type zeolite and Zeolite Y were synthesized from Class F fly ash and NaOH solution after 2 days of aging at room temperature and 6 days of curing at 80-degrees-C. However, no zeolites formed when KOH was used. In additional experiments, a Na-P type zeolite, Zeolite Y, and chabazite developed in cement pastes blended with Class F fly ash and NaOH solution which had been aged 2 days at room temperature and then cured 6 days at temperatures ranging from room temperature to 90-degrees-C. Seeding the pastes with natural zeolites was also investigated.
引用
收藏
页码:1574 / 1580
页数:7
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