Ciment Fondu® is the world's first commercially manufactured calcium aluminate cement, patented by J. Bied of Lafarge 1908. The initial preparation was in response to the demand for sulfate resistant cement. Since then, subsequent research and product development revealed other properties of the cement that transformed it from being simply a sulfate-resistant cement into a binder for specialized applications that depend on its chemical, mineralogical and physical properties. It has also led to the development of a family of calcium aluminate products, with a wide range of properties that can fulfill many industrial requirements.
Ciment Fondu® cement is one of six calcium aluminate cements available in North America. Dark brown in color, this is the darkest of the cements. The clinker for this cement is prepared in a separate production facility using a reverberatory furnace in which the raw materials are melted to form the clinker. The fused, very dense clinker is environmentally stable and can be shipped around the world in bulk without concern for degradation. One site for grinding this clinker into cement is here in Chesapeake, VA where we grind Ciment Fondu® to 4,000cm 2/g Blaine surface area.
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.
Ciment Fondu® is available packaged in 94-lb. bags, 3,000-lb. SuperSacks, p-d (pressure differential) bulk trucks and p-d bulk rail cars.
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