Fly Ash with Ammonia: Properties and Emission of Ammonia from Cement ...
1. Introduction. Fly ash is a widely used by-product, no longer considered just a waste but a rather a valuable pozzolanic material added to cement composites to improve their properties [1,2,3,4,5,6,7].It is used in cement and concrete manufacturing after fulfilling the requirements of various standards such as EN 197-1, EN 450-1 and ASTM C618 [8,9,10,11].