This standard specifies the definition and classification of Portland cement clinker, technical requirements, test methods and acceptance rules, etc. This standard applies to commercial Portland cement clinker.
GB/T 21372-2008 Referenced Document
GB 175 General Purpose Portland Cement*, 2023-11-27 Update
GB/T 1345 The test sieving method for fineness of cement
GB/T 1346 "Test methods for water requirement of normal consistency,setting time and soundness of the Portland cement"
GB/T 176 Cement Chemical Analysis Methods*, 2018-11-01 Update
GB/T 17671 Test method of cement mortar strength ( ISO method )*, 2021-12-31 Update
GB/T 750 Autoclave method for soundness of portland cement
GB/T 8074 Testing method for specific surface of cement—Blaine method