GB/T 2938-2008
ActiveLow heat expansive cement
低热微膨胀水泥
Application Summary AI generated
GB/T 2938-2008 specifies the technical requirements, test methods, and inspection rules for low heat expansive cement, which is designed to produce concrete with reduced hydration heat and controlled expansion. It is primarily applied in mass concrete structures such as dams, large foundations, and tunnel linings where thermal cracking risks are high, as the cement's expansion compensates for shrinkage and minimizes temperature-induced stresses. This standard ensures the cement's performance in hydraulic engineering and other large-scale construction projects requiring both low heat generation and volume stability.
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Transparency note: The application summary and key sentences on this page were automatically generated by AI from the standard's original text. This content has not been human-verified and should not be used for compliance or regulatory purposes. Always refer to the official standard document from the issuing authority.