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GB 46039-2025 English PDF

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GB 46039-2025: Safety technical specification for concrete admixtures
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GB 46039-2025English279 Add to Cart 3 days [Need to translate] Safety technical specification for concrete admixtures Valid GB 46039-2025

Standard similar to GB 46039-2025

GB/T 51033   GB/T 50082   

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 14,150
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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