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Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email. GB/T 23440-2025: Inorganic waterproof and leakage-preventing materials Status: Valid GB/T 23440: Historical versions
Basic dataStandard ID: GB/T 23440-2025 (GB/T23440-2025)Description (Translated English): Inorganic waterproof and leakage-preventing materials Sector / Industry: National Standard (Recommended) Classification of Chinese Standard: Q17 Classification of International Standard: 91.120.30 Word Count Estimation: 14,133 Date of Issue: 2025-08-01 Date of Implementation: 2026-02-01 Older Standard (superseded by this standard): GB 23440-2009 Issuing agency(ies): State Administration for Market Regulation, Standardization Administration of China GB/T 23440-2025: Inorganic waterproof and leakage-preventing materials---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/GBT23440-2025ICS 91.120.30 CCSQ17 National Standard of the People's Republic of China Replaces GB 23440-2009 Inorganic waterproof plugging materials Released on August 1, 2025 Implementation on February 1, 2026 State Administration for Market Regulation The National Standardization Administration issued PrefaceThis 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. This document replaces GB 23440-2009 "Inorganic waterproof and leak-proof materials". Compared with GB 23440-2009, except for structural adjustments and editorial In addition to the modifications, the main technical changes are as follows. a) The scope of application has been changed (see Chapter 1, Chapter 1 of the.2009 edition); b) Added technical requirements for chloride ion content of products and corresponding test methods (see Table 1, 6.4); c) Deleted the initial setting time requirements and corresponding test methods for Type II products (Table 1 and 6.3 of the.2009 edition). d) The technical requirements for compressive strength and flexural strength and the corresponding test methods have been changed (see Table 1, 6.6, and Table 1, 6.4 of the.2009 edition); e) The test conditions have been changed (see 6.1, 6.1 of the.2009 edition); f) The preparation method of the anti-permeability benchmark mortar specimens has been changed (see 6.7.1.1, 6.5.1.1 of the.2009 edition); g) The test method for bond strength has been changed (see 6.8, 6.6 of the.2009 edition); h) The freeze-thaw cycle test conditions have been changed (see 6.10.1, 6.8.1 of the.2009 edition). 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 by China Building Materials Federation. This document is under the jurisdiction of the National Technical Committee for Standardization of Cement Products (SAC/TC197). This document was drafted by. China National Building Materials Suzhou Waterproof Research Institute Co., Ltd., Building Materials Industry Technical Supervision Research Center, Shangrao Tianjia New Materials Co., Ltd., Jiangsu Kailun Building Materials Co., Ltd., China Construction Fifth Engineering Bureau Group Co., Ltd., Suzhou Concrete Cement Products Research Institute Testing Center Co., Ltd., China National Testing Holding Group Beijing Co., Ltd., Beijing Pengneichuan International Building Materials Co., Ltd., China Railway 18th Bureau Group Co., Ltd., Guangdong Jianke Innovation Technology Research Institute Co., Ltd., Beijing China Construction Reite New Materials Co., Ltd., Shanghai Yu Hong (Jinhu) Waterproof Technology Co., Ltd., Nanjing Kangtai Building Grouting Technology Co., Ltd., Shandong Zhuoyue Jinggong Technology Co., Ltd., China Railway Fourth Engineering Bureau Group Engineering Construction Co., Ltd., Keshun Waterproof Technology Co., Ltd., Zhejiang Shuilike Building Technology Co., Ltd., Beijing Oriental Rain Hong Waterproof Technology Co., Ltd., China Water Resources and Hydropower Third Engineering Bureau Co., Ltd., Beixin Waterproof Co., Ltd., Shanghai Weixing New Materials Science and Technology Co., Ltd. Technology Co., Ltd., Sino-German Xinya Building Materials Co., Ltd., Fujian Huixing Paint Technology Development Co., Ltd., and Zhongyou Jiahui (Guangdong) Waterproof Co., Ltd. Co., Ltd., Shanghai Niuyuan Industry and Trade Co., Ltd., Pearl River Water Conservancy Commission Pearl River Water Conservancy Science Research Institute, Guangzhou Jitai Chemical Co., Ltd., China Hydropower Engineering Bureau Co., Ltd., China Railway Construction Urban Construction and Transportation Development Co., Ltd., Zhejiang Second Construction Group Co., Ltd., Hebei Water Conservancy Engineering Bureau Group Co., Ltd., Jiangsu Shuanglou Construction Group Co., Ltd., Nantong Construction Group Co., Ltd., China Construction Third Engineering Bureau Group South China Branch Co., Ltd., Hebei Tianxin Construction Group Co., Ltd., China Construction Eighth Bureau Third Construction Co., Ltd., China Railway Fourteenth Bureau Group Large Shield Engineering Co., Ltd. Company, Yicheng Anda Special Engineering Materials Co., Ltd., CCCC First Harbor Engineering Bureau Co., Ltd., China Construction Strait Construction Development Co., Ltd., CCCC Second Navigation Engineering Bureau Co., Ltd., China Railway 21st Bureau Group Second Engineering Co., Ltd., China Water Resources and Hydropower 11th Engineering Bureau Co., Ltd. Company, China Construction Eighth Bureau Rail Transit Construction Co., Ltd., Shandong Gudun Waterproof Technology Co., Ltd., Xingtai Jianyi New Materials Technology Co., Ltd., Nantong Ruirui Waterproof New Technology Development Co., Ltd., Anhui Jianxiu Waterproof Technology Co., Ltd., and Shanghai Yejia Building Materials Co., Ltd. 1) Li Wei, China National Building Materials Suzhou Waterproof Research Institute Co., Ltd. 2) Li Wei, Sino-German Xinya Building Materials Co., Ltd. The main drafters of this document are. Shen Chunlin, Yang Bin, Wang Yufeng, Chen Bin, Kang Jiefen, Chu Jianjun, Xu Wenhai, Huang Liang, Chen Yang, Qu Gaojian, Liu Nailin, Meng Yanan, Li Wei1), Du Ze, Xiang Binfeng, Zhang Erqin, Wang Lichuan, Zhang Kai, Hu Xiaozheng, Shi Jiulong, Chen Sensen, Wang Rongbo, Wang Xianjun, Yu Yuefeng, Zhao Jiancheng, Chen Zhan, Ying Linghui, Li Wei2), Yang Deliang, Kang Huiyang, Ma Jun, Wang Shusheng, Wang Weiguang, Peng Liang, Xie Wu, Sun Yinhao, Chen Haiyan, Wang Lixin, Guo Ning, Wang Jinfeng, Yan Da, Cheng Xianfang, Chen Gang, Chen Peng, Zhou Qi, Cao Zhonglu, Wang Yao, Yang Zhao, Chen Bingzhang, Ding Qingjie, Tang Lixian, Liu Guoning, Liu Hua, Wang Jifei, Fang Chengchen, Wang Jiajun, Zhang Gesong, Wang Yuchen, Zhang Rui, Li Qingbin, He Xinhui, Liu Hongyi, Jiang Zhian, Chen Kerong, Qiang Defeng, Mei Jiangtao, Chen Jianfu, Wu Zhihong, Ma Suixue, Tian Zhuolun, Zhang Yaqing, and Sun Fei. The previous versions of this document and the documents it replaces are as follows. ---First issued in.2009 as GB 23440-2009; ---This is the first revision. Inorganic waterproof plugging materials1 ScopeThis document specifies the classification and marking, technical requirements, test methods, inspection rules, and packaging, marking, and transportation of inorganic waterproof and leak-proof materials. Transportation, storage and shelf life. This document applies to the production and inspection of inorganic waterproof plugging materials used for leak plugging, waterproofing and anti-seepage in construction projects.2 Normative referencesThe 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 175 General purpose Portland cement GB/T 176-2017 Chemical analysis methods for cement GB/T 1346 Test methods for water consumption, setting time and stability of cement of standard consistency GB 8076 Concrete admixtures GB/T 17671 Test method for strength of cement mortar (ISO method) GB/T 50082 Test methods for long-term performance and durability of concrete JC/T 547-2017 Ceramic Tile Adhesive JC/T 681 Planetary cement mortar mixer JG/T 245 Vibrating table for concrete testing JGJ63 Standard for Water Used in Concrete JGJ/T 70 Test method for basic properties of building mortar3 Terms and DefinitionsThe following terms and definitions apply to this document. 3.1 It is made of sulphoaluminate cement and silicate cement as main components, mixed with additives and used for plugging, waterproofing, and anti-corrosion. Powdered material. 3.2 The inorganic waterproof plugging material slurry specified in this document is applied on the benchmark mortar specimen and the inorganic waterproof plugging material slurry specified in this document is not applied. The pressure difference of the benchmark mortar specimen of the plugging material mixing slurry during the anti-seepage test within the specified age. 3.3 The pressure value of the anti-seepage test on the anti-seepage test piece made of inorganic waterproof and leak-proof materials after curing to the specified age. ......Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of GB/T 23440-2025_English be delivered?Answer: Upon your order, we will start to translate GB/T 23440-2025_English as soon as possible, and keep you informed of the progress. The lead time is typically 1 ~ 3 working days. 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Otherwise, follow the normal steps: Add to Cart -- Checkout -- Select your currency to pay.Question 5: Should I purchase the latest version GB/T 23440-2025?Answer: Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version GB/T 23440-2025 even if the enforcement date is in future. Complying with the latest version means that, by default, it also complies with all the earlier versions, technically. |
