Specifications and Protocols for Acceptance Tests on Processing Additions in Cement Manufacturing

摘要

Inorganic processing additions (referred to as processing additions or PAs hereafter), such as granulated blast furnace slag and fly ash, are interground with clinker in the manufacture of some portland cements, primarily to improve the efficiency of manufacturing. These additions may also improve product quality, reduce carbon dioxide emissions and energy requirements during the cement manufacturing process, and provide other economic and environmental benefits. However, there has been considerable debate recently about the effects of such additions on cement and concrete properties and on the performance and durability of the highway pavements and structures in which these materials are used.