Ciment Fondu? is a hydraulic binder with an alumina content of approximately 40%. Composed mainly of calcium aluminate phases, Ciment Fondu? is ideally suited for refractory and construction chemistry applications. The primary mineralogical phase is calcium aluminate (CaAl2O4), which imparts excellent mechanical strength to mortars and concretes. Despite a 16% iron oxide content, Ciment Fondu? is suitable for refractory applications where iron oxide can be tolerated (non-reducing atmospheres). Ciment Fondu? is also recommended for use in products requiring rapid hardening, resistance to abrasion, mechanical shock, intermediate temperature exposure or where other high performance properties are required of cement..