Influence of Fly Ash and Slag on Deicer Salt Scaling Resistance of Concrete

摘要

Over the past decades, numerous laboratory studies have clearly indicated that the use of supplementary cementing materials, and particularly fly ash, can significantly reduce the scaling durability of properly air-entrained concrete. Despite the great deal of research done on the topic, the reasons behind the detrimental influence of fly ash remain unclear. In order to bring more information on the subject, an investigation of the influence of fly ash (two class C and a class CF), and the percentage of replacement of the cement by the fly ash (0, 20 and 40