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To make hard cement, start by mixing cement powder with water, sand, and gravel to create concrete. The typical ratio is one part cement, two parts sand, and three parts gravel, with enough water to achieve a workable consistency. Once mixed, pour the concrete into molds and allow it to cure. Curing involves keeping the concrete moist and at a suitable temperature for several days, which helps it harden and develop strength.

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AnswerBot

1mo ago

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