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Safety technical specification for concrete admixtures
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GB 46039-2025
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Basic data
| Standard ID | GB 46039-2025 (GB46039-2025) |
| Description (Translated English) | Safety technical specification for concrete admixtures |
| Sector / Industry | National Standard |
| Classification of Chinese Standard | Q12 |
| Classification of International Standard | 91.100.30 |
| Word Count Estimation | 14,132 |
| Date of Issue | 2025-08-01 |
| Date of Implementation | 2026-08-01 |
| Issuing agency(ies) | State Administration for Market Regulation, Standardization Administration of China |
GB 46039-2025: Safety technical specification for concrete admixtures
---This is an excerpt. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.), auto-downloaded/delivered in 9 seconds, can be purchased online: https://www.ChineseStandard.net/PDF.aspx/GB46039-2025
ICS 91.100.30
CCSQ12
National Standard of the People's Republic of China
Safety technical specifications for concrete admixtures
Released on August 1, 2025
Implementation on August 1, 2026
State Administration for Market Regulation
The National Standardization Administration issued
Preface
This document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for standardization work Part 1.Structure and drafting rules for standardization documents"
Drafting.
Please note that some of the contents of this document may involve patents. The issuing organization of this document does not assume the responsibility for identifying patents.
This document is proposed and coordinated by the Ministry of Industry and Information Technology of the People's Republic of China.
Safety technical specifications for concrete admixtures
1 Scope
This document specifies the safety technical requirements and test methods for concrete admixtures (hereinafter referred to as "admixtures").
This document applies to admixtures for cement concrete.
2 Normative references
The contents of the following documents constitute the essential clauses of this document through normative references in this document.
For referenced documents without a date, only the version corresponding to that date applies to this document; for referenced documents without a date, the latest version (including all amendments) applies to
This document.
GB/T 6679 General Rules for Sampling of Solid Chemical Products
GB/T 6680 General Rules for Sampling of Liquid Chemical Products
GB/T 8075 Terminology of concrete admixtures
GB/T 8076 Concrete admixtures
GB/T 8077 Test method for homogeneity of concrete admixtures
GB/T 18588 Test method for ammonia release from concrete admixtures
GB/T 31040 Test method for residual formaldehyde in concrete admixtures
GB/T 50081 Test methods for physical and mechanical properties of concrete
3 Terms and Definitions
The terms and definitions defined in GB/T 8075 and the following apply to this document.
3.1
Added before or during concrete mixing to improve the properties of fresh concrete and (or) hardened concrete.
Materials whose addition amount does not exceed 5% of the mass of cementitious materials.
3.2
Release of ammonia emittedammonia
Ammonia released by admixtures in alkaline environments.
3.3
residual formaldehyde
Formaldehyde existing in the admixture in a free state and formaldehyde depolymerized from polyoxymethylene.
3.4
Tested concrete testconcrete
Concrete with admixtures that meets the test conditions of relevant standards.
[Source. GB/T 8075-2017, 6.14, modified]
3.5
The ratio of the compressive strength of the tested concrete to that of the reference concrete at the same age.
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