The hardening of
The hardening of cement by absorption of carbon(IV) oxide is an example of which change
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When the powdered cement particles were exposed to carbon dioxide, it increased the rate of hydration. Hydration was a chemical reaction wherein all the cement molecules react with the water molecules to form their hydration products.
After the hydration process, the cement particles also underwent a physical process, called hardening, wherein the product formed a stiff layer that was able to bear higher loads.
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