CAC (Calcium Aluminate Cement)
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CAC (Calcium Aluminate Cement), also called HAC (High Alumina Cement), is a hydraulic binder produced by fusing limestone and bauxite in a rotary kiln.
Both are specialty cement that is primarily composed of alumina and calcium.
HAC (High Alumina Cement) is a type of cement with a high alumina content, typically greater than 50%, and is known for its high early strength and rapid hardening properties.
Calcium Aluminate Cement (CAC) is a cement composed mainly of calcium and alumina. CAC is used in applications requiring rapid setting and hardening, such as in construction materials, refractory materials, and sewage pipes.
CAC cement sets quickly, and its high early strength is beneficial in precast concrete production, where rapid demolding and handling are required. CAC cement is also used in refractory castable, which is used to line high-temperature furnaces, kilns, and boilers.
Sprayed and wet-trowelled Calcium Aluminate Cement systems are practical and durable for lining and rehabilitating large-diameter sewers and manholes. Their high-strength, rapid-setting properties, excellent adhesion, imperviousness to biogenic attacks, and seamless surface make them reliable and long-lasting for protecting sewer systems from deterioration and extending their lifespan.