1. Sintering machine converts fly ash to lightweight aggregate;Coxon;Rock Prod,1975
2. Manufacturing processes of artificial lightweight aggregates from fly ash;Bijen;Int J Cem Compos Lightweight Concr,1986
3. The manufacture of aggregate from pulverised fuel ash by the Lytag process and new and established uses of the product;Buttler,1987
4. The microstructure of Lytag aggregate;Swany;Int J Cem Compos Lightweight Concr,1981