• Micro Silica And Silica Fumes

    Micro silica contains trace amounts of heavy metal oxides and organic deposits, which originate from natural raw materials. … The advantages of using micro silica can be considerable as it reduces thermal cracking caused by the heat of cement hydration and can improve durability to attack by sulphate and acidic waters. Several materials have recently […]

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  • Liquid Steel and The process Of Casting

    After secondary refining what we do with the liquid steel. As we know that we have already made the casting so whatever processes we have to use for making clean steel requires control over all these undesirable elements. We have control the dissolve oxygen, control sulphur, nitrogen, hydrogen, carbon if it is a necessity we […]

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  • Activated Carbons in Rice Husk Ash

    Activated carbons were prepared from rice husk as following procedures: firstly, the rice husks were washed with water to remove dirt and other contaminants, oven-dried at 110 °C for 12 hrs then grounded and sieved to fractions with average particle size of 1.0 mm. Secondly; the prepared husks were carbonized at 400 °C under nitrogen […]

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