一、引言磨细粉煤灰在水泥和混凝土的技术开发已在国内外得到愈来愈广泛的应用。但是,本市部分电厂采用湿法收尘和水力装置排放湿粉煤灰;有些电厂虽采用电除尘器,但因无干灰贮库,只能干灰湿排,加上球磨机能耗大,粉尘浓度高等因素,大部分原状粉煤灰国不能磨细而被抛弃,需要建造专门的堆场来存放。去年,我们从《Civil Engineezing》中了解到,美国正在试验用电厂灰直接掺少量水泥作填 I. INTRODUCTION The technical development of ground fly ash in cement and concrete has been increasingly used at home and abroad. However, some power plants in this Municipality use wet dust collection and hydraulic devices to discharge wet fly ash; some power plants use electrostatic precipitators, but due to the lack of dry ash storage, they can only dry wet ash, plus a large energy consumption of the ball mill, dust concentration As a matter of advanced factors, most of the original fly ash countries cannot be ground and are abandoned. It is necessary to build a special storage yard for storage. Last year, we learned from “Civil Engineezing” that the United States is experimenting with using power plant ash to directly fill a small amount of cement.