This standard specifies the terms and definitions, composition, materials, codes, and strength levels of masonry cement, technical requirements, test methods, inspection rules, factory, delivery, and acceptance, packaging, marking, transportation, and storage. This standard applies to the masonry cement required for masonry, plastering mortar, and cushion concrete. The following normative references are essential for the application of this document. For dated references, only the dated version applies to this document. For undated references, the latest version (including all modification orders) applies to this document. GB/T176 Methods for Chemical Analysis of Cement GB/T 203 Granulated Blast Furnace Slag Used in Cement GB/T 1345 Method for Testing the Fineness of Cement GB/T 1346 Method for Sieve Analysis of Cement Standard Consistency Water Consumption, Setting Time Method for Testing Stability GB/T 1596 Fly Ash Used in Cement and Concrete GB/T 2419 Determination of Fluidity of Cement Mortar GB/T 2847 Volcanic Ash Mixing Materials Used in Water Mixtures GB/T 5483 Natural Gypsum GB 6566 Construction Materials Radionuclide Limits GB/T 6645 Granulated Electric Furnace Phosphorus Slag Used in Cement GB/T 9774 Cement Packaging Bags GB/T 12573 Cement Sampling Methods GB/T 17671 Method for Testing the Strength of Cement Mortar (ISO Method) GB/T 21371 Industrial by-product gypsum used in water mixing GB/T 21372 Portland cement clinker GB/T 26748 Cement grinding aids GB 31893- Limits and determination methods of water-soluble chromium (VD) in cement GB/T 35164 Limestone powder used in cement, mortar, and concrete JC/T 418 Granulated blast furnace titanium slag used in cement JC/T 742 Rotary kiln ash added to cement
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