Binder for chemically resistant concrete and process for ...

Having been cooled the containing sodium oxide is screened with the aid of a vibrating screen for separating particles having size of 0.315-0.63 mm. The second ingredient quartz sand in an amount of 0.214 tons is ground in a ball mill so that it has a specific surface area of 5000 cm 2 /g. A finely divided quartz sand is mixed with a finely divided and screened crystobalite 0.315-0.63 mm …

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