GB/T 45777-2025 Active National standards

GB/T 45777-2025 Evaluation method for admixture amount of gypsum in cement

Publish Date: 2025-06-30 Implement Date: 2026-01-01 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

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Basic Information

Standard Code: GB/T 45777-2025

Standard Type: National standards

Standard Status: Active

is_force_gb: no

CCS Name: Cement

ICS Name: Cement, gypsum, lime, and mortar

Publish Date: 2025-06-30

Implement Date: 2026-01-01

Pages: 12 pages

Scope

This document presents the principles of the assessment method for the gypsum content in cement, and specifies the instruments and equipment, test samples, test methods, assessment process, production control, and assessment reports.
This document is applicable to the assessment of gypsum content in general silicate cement, and other types of cement can be used for reference.

Development Information

Word Count: 13 Thousand words Pages: 12 pages

Referenced Standards

GB/T 176-1996 Method for chemical analysis of cement GB/T 176-2008 Methods for chemical analysis of cement GB/T 176-2017 Methods for chemical analysis of cement GB/T 1346-2001 Test methods for water requirement of normal consistency,setting time and soundness of the portland cements GB/T 1346-2011 Test methods for water requirement of normal consistency,setting time and soundness of the portland cement GB/T 1346-2024 Test methods for water requirement of standard consistency,setting time and soundness of the portland cement GB/T 5484-2000 Methods for chemical analysis of gypsum GB/T 5484-2012 Methods for chemical analysis of gypsum GB/T 5484-2024 Methods for chemical analysis of gypsum GB/T 8074-1987 Testing method for specific surface of cement—Blaine method GB/T 8074-2008 Testing method for specific surface of cement—Blaine method GB/T 12959-1991 Test method for heat of hydration of cement—The heat of solution method GB/T 12959-2008 Test methods for heat of hydration of cement GB/T 12959-2024 Test methods for heat of hydration of cement GB/T 17671-1999 Method of testing cements—Determination of strength GB/T 17671-2021 Test method of cement mortar strength(ISO method) GB/T 21372-2008 Portland cement clinker GB/T 21372-2024 Portland cement clinker JC/T 603 JC/T 1083-2008 Test method for compatibility of cement and water-reducing agent GB/T 176-2025 Methods for chemical analysis of cement

Related Standards

GB/T 2022-1980 Replaced

GB/T 2022-1980 Test method for heat of hydration of cement—Adiabatic method

Publish Date: 1980-09-27

GB/T 177-1985 Abolished

GB/T 177-1985 Test method for strength of hydraulic cement mortar

Publish Date: 1985-06-29

GB/T 6645-1986 Replaced

GB/T 6645-1986 Granulated electric furnace phosphorous slag used for cement production

Publish Date: 1986-07-29

GB/T 7897.1-1987 Replaced

GB/T 7897.1-1987 Test method of mechanical properties of mortar for ferrocement General principle

Publish Date: 1987-06-05

GB/T 7897.2-1987 Replaced

GB/T 7897.2-1987 Test method of mechanical properties of mortar for ferrocement Test of bending strength

Publish Date: 1987-06-05

GB/T 7897.3-1987 Replaced

GB/T 7897.3-1987 Test method of mechanical properties of mortar for ferrocement Test of compressive strength

Publish Date: 1987-06-05