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GB/T 18736-2017 English PDF

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GB/T 18736-2017: Mineral admixtures for high strength and high-performance concrete
Status: Valid

GB/T 18736: Evolution and historical versions

Standard IDContents [version]USDSTEP2[PDF] delivered inStandard Title (Description)StatusPDF
GB/T 18736-2017English299 Add to Cart 3 days [Need to translate] Mineral admixtures for high strength and high-performance concrete Valid GB/T 18736-2017
GB/T 18736-2002English479 Add to Cart 3 days [Need to translate] Mineral admixtures for high strength and high-performance concrete Obsolete GB/T 18736-2002

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Basic data

Standard ID GB/T 18736-2017 (GB/T18736-2017)
Description (Translated English) Mineral admixtures for high strength and high-performance concrete
Sector / Industry National Standard (Recommended)
Classification of Chinese Standard Q13
Classification of International Standard 91.100.30
Word Count Estimation 15,150
Date of Issue 2017-03-09
Date of Implementation 2018-02-01
Older Standard (superseded by this standard) GB/T 18736-2002
Quoted Standard GB/T 176; GB/T 1345; GB/T 2419; GB/T 5483; GB/T 8074; GB/T 8075; GB 8076-2008; GB 9774; GB/T 12573; GB/T 17671-1999; GBIT 19587; GB/T 26748
Regulation (derived from) National Standard Notice No. 5 of 2017
Issuing agency(ies) General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China
Summary This standard specifies the terms and definitions, classification and marking, requirements, test methods, inspection rules, packaging, marking, transportation and storage of mineral admixtures for high strength and high performance concrete. This standard applies to high-strength high-performance concrete grinding slag, fly ash, grinding natural zeolite, silica fume and metakaolin and its composite mineral admixture.

GB/T 18736-2017: Mineral admixtures for high strength and high-performance concrete

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Mineral admixtures for high strength and high performance concrete ICS 91.100.30 Q13 National Standards of People's Republic of China Replace GB/T 18736-2002 High - strength high - performance concrete mineral admixture 2017-03-09 released 2018-02-01 Implementation General Administration of Quality Supervision, Inspection and Quarantine of the People 's Republic of China China National Standardization Management Committee released

Foreword

This standard is drafted in accordance with the rules given in GB/T 1.1-2009. This standard replaces GB/T 18736-2002 "mineral admixture for high strength and high performance concrete". This standard compared with GB/T 18736-2002 main technical changes are as follows. - the addition of metakaolin mineral admixtures to the scope of this standard, "ground fly ash" to "fly ash" (see Chapter 1,.2002 Edition Chapter 1); - the definition of ground fly ash is removed, the definition of fly ash is increased (see Chapter 3, Chapter 3 of.2002); --- increased the definition of metakaolin (see Chapter 3); - the definition of granulated blast furnace slag, ground slag, silica fume, natural zeolite rock, ground natural zeolite, compound mineral admixture 2002 edition of chapter 3); - modified the grading of ground slag, abolished the classification of fly ash, ground natural zeolite (see Chapter 4,.2002, Chapter 4); - increased technical requirements for metakaolin mineral admixtures (see Chapter 5); --- will be grinding slag, fly ash, grinding natural zeolite chloride control value from "≤ 0.02%" to "≤ 0.06%", the silica fume The chloride ion control value is changed from "≤0.02%" to "≤0.10%" (see Chapter 5, Edition.2002, Chapter 5); - a free calcium oxide test project with fly ash added (see Chapter 5); --- The fineness test project has been added, and the fineness test items include the specific surface area and the 45 m square hole sieve (see Chapter 5); - adjust the control value of the mineral admixture water requirement ratio (see Chapter 5, Chapter 5 of.2002); - adjust the control value of the mineral admixture activity index (see Chapter 5, Chapter 5 of.2002); - modified test methods for chloride ions (see Chapter 6, Chapter 2,.2002); - modified the silica test method, abolished the.2002 version of Appendix A silica content analysis method (see Chapter 6, 2002, Chapter 6, Appendix A); The method of measuring the specific surface area of the laser particle size analyzer was canceled. The specific surface area of the ground slag was determined according to GB/T 8074 (See Chapter 6, Chapter 2,.2002); - an increase of 45 μm square hole sieve test method (see Chapter 6); - modified test method for moisture content, added to Appendix B, "Method for determination of moisture content of mineral admixtures" (see Chapter 6, Appendix B, 2002, Chapter 6); - Modification of the activity index test method (see Chapter 6, Appendix C,.2002, Chapter 6, Appendix C); --- "pocket net weight of each bag shall not be less than 98% of the quality of the logo" to "pocket net weight of each bag shall not be less than the quality of the logo 99% "(see Chapter 8, Chapter 9,.2002). This standard is proposed by the China Building Materials Federation. This standard by the National Cement Products Standardization Technical Committee (SAC/TC197) centralized. This standard is responsible for drafting units. China Building Materials Science Research Institute, Tangshan Construction Group Co., Ltd. This standard participates in the drafting unit. Beijing New Austrian Concrete Group Co., Ltd., China Railway Research Institute, Institute of Standard Measurement, Tianjin City Building Science Research Institute Co., Ltd., Jiangsu Subo special materials Co., Ltd., China Metallurgical Building Research Institute Co., Ltd., China Construction Scientific Research Institute, Tangshan Tanglong New Building Material Co., Ltd., Wuhan Wuxin New Building Material Co., Ltd., Jinan Luxin New Building Material Co., Ltd. Mongolia Chaoyao Kaolin Co., Ltd., Gansu Sanyuan Micro-Silica Powder Co., Ltd., Beijing Jianghan Technology Co., Ltd., Tongji University, Nanjing Water Resources and Hydropower Scientific Research Institute, Shenzhen City, Granite Concrete Admixture Co., Ltd., Guangdong Ruian Technology Industrial Co., Ltd., Jiangsu Zhenjiang 100 Ruijie new materials limited Company, Building Materials Industry Technical Information Research Institute, Jiaozuo City Yu Kun Mining Co., Ltd., Kaifeng Qi Ming Refractories Co., Ltd. The main drafters of this standard. Gao Chunyong, Yao Yan, Wang Ling, Wang Junwei, Li Jianyong, Shen Pingbang, Zhao Lei, Sun Jicheng, Li Peiyan, Wang Bin, Liu Jianzhong, Lin Lian, Zhou Yongxiang, Hao Tingyu, Ding Jiantong, Zhong Yilin, Chen Weiguo, Zhao Jun, Wang Hongtao, Li Kaiqi, Zhang Xiong, Sun Zhong, Zhang Ping This standard replaced the previous version of the standard release. --- GB/T 18736-2002. High - strength high - performance concrete mineral admixture

1 Scope

This standard specifies the terms and definitions, classification and marking of mineral admixtures for high strength and high performance concrete, requirements, test methods, inspection regulations Then, packaging, marking, transportation and storage. This standard applies to high strength and high performance concrete grinding slag, fly ash, ground natural zeolite, silica fume and metakaolin and its composite Mineral admixtures.

2 normative reference documents

The following documents are indispensable for the application of this document. For dated references, only the dated edition applies to this article Pieces. For undated references, the latest edition (including all modifications) applies to this document. Methods for chemical analysis of cement GB/T GB/T 1345 Test method for fineness of cement - Sieve method GB/T 2419 Determination of fluidity of cement mortar GB/T 5483 Natural gypsum GB/T 8074 Determination of specific surface area of cement Classification, classification, naming and terminology of concrete admixtures GB/T Concrete admixtures GB 8076-2008 GB 9774 cement bags GB/T 12573 Cement Sampling Method GB/T 17671-1999 Test method for strength of cement mortar (ISO method) Determination of specific surface area of solid matter by gas adsorption BET method GB/T GB/T 26748 cement grinding aids

3 terms and definitions

The following definitions and definitions as defined in GB/T 8075 apply to this document. 3.1 High-strength high-performance concrete mineral admixtures mineraladmixturesforhighstrengthandhighperformancecon- crete In the concrete mixing process, with a certain degree of fineness and activity, used to improve the performance of fresh concrete and hardened concrete (special Other concrete durability) of certain mineral products. 3.2 Fly ash flyash With coal-fired power plant power plant emissions of flue ash or its election, after grinding to get a certain degree of fine products. 3.3 Metakaolin metakaolin With kaolin minerals as raw materials, calcined at the appropriate temperature after grinding by the formation of amorphous aluminosilicate as the main component of the product.

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