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Calcium oxide (CaO), commonly known as quicklime, is a critical component in the manufacturing of Portland cement. Derived from calcined limestone, CaO reacts with water to form calcium hydroxide (Ca(OH) 2) during the cement hydration process, which then reacts with silicates to form calcium silicate hydrates (CSH), the primary compounds responsible for strength and durability in concrete. The presence of CaO is crucial for these reactions, impacting the setting time, strength development, and overall hydration process of cement.

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CaO

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  • 发表日期：

    2025年

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摘要

Calcium oxide (CaO), commonly known as quicklime, is a critical component in the manufacturing of Portland cement. Derived from calcined limestone, CaO reacts with water to form calcium hydroxide (Ca(OH) 2) during the cement hydration process, which then reacts with silicates to form calcium silicate hydrates (CSH), the primary compounds responsible for strength and durability in concrete. The presence of CaO is crucial for these reactions, impacting the setting time, strength development, and overall hydration process of cement.