GB 1344-1999
AbolishedPortland blastfurnace-slag cement，Portland pozzolana cement and portland fly-ash cement
矿渣硅酸盐水泥、火山灰质硅酸盐水泥及粉煤灰硅酸盐水泥
Application Summary AI generated
This Chinese standard specifies the definitions, composition, technical requirements, and testing methods for three types of blended Portland cements: blastfurnace-slag, pozzolana, and fly-ash cement. It is applied in the construction industry for producing concrete and mortar used in buildings, bridges, roads, and hydraulic structures where these cements offer specific properties like improved sulfate resistance or reduced heat of hydration. The standard ensures quality control and consistency for manufacturers and engineers selecting cement for general construction projects.
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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.