Description: Amorphous calcium aluminate is the basic raw material of a new Accelerator, its principal constituent is the non-crystalline calcium aluminate. Appearance of light gray-green powder. Properties of amorphous calcium higher reactivity than the crystalline product, used in conjunction with silicate cement, can achieve a higher degree of responsiveness and efficiency. Non-crystalline calcium aluminate reacts unexpectedly fast with plaster and water to produce ettringite; adds its appropriate to ordinary silicate cement, the initial setting in less than a minute to complete. Addition of ettringite structural stability, good strength. While ettringite volume expansion, formation of prestressed concrete and shrinkage resistance. Amorphous calcium aluminate Spec: CaO:48%max ,Al2O3:42%min ,SiO2:5.0%max, Fe2O3:2.0%max , TiO2 2.0%max, MgO:2.0%max Or CaO:50-55%,Al2O3:38-44%,SiO2:5.0%max,Fe2O3:2.0%max , TiO2 2.0%max, MgO:2.0%max Size: 500-5500 g/cm2 Packing:1 MT big bag or as per customers requirement Amorphous Calcium aluminate advantages: l Accelerated and rapid harding l Defending against leakage l High-strength and super high-early strength; l Low profile; l Enhanced persistence, l Good adhesion Non-crystalline calcium aluminate usages: l Accelerated and rapid harding as cement accelerator,mainly in tunnels, underground engineering l Defending against leakage in nuclear power plant and other major projects