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Cement Is Made From Which Stone Grinding Mill

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Cement, like flour, is an ingredient. to make concrete a mixture of portland cement 10-15 and water 15-20 make a paste. this paste is then mixed with aggregates 65-75 such as sand and gravel, or crushed stone. as the cement and water mix, they harden and bind the aggregates into an impenetrable rock-like mass. therefore

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