|
US$279.00 ยท In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email.
GB/T 37990-2019: Technical requirements of anti-washout admixture for underwater concrete
Status: Valid
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 37990-2019 | English | 279 |
Add to Cart
|
3 days [Need to translate]
|
Technical requirements of anti-washout admixture for underwater concrete
| Valid |
GB/T 37990-2019
|
PDF similar to GB/T 37990-2019
Standard similar to GB/T 37990-2019 GB/T 23265 GB/T 27690 GB/T 26751 Basic data | Standard ID | GB/T 37990-2019 (GB/T37990-2019) | | Description (Translated English) | Technical requirements of anti-washout admixture for underwater concrete | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | Q12 | | Classification of International Standard | 91.100.30 | | Word Count Estimation | 14,144 | | Date of Issue | 2019-08-30 | | Date of Implementation | 2020-07-01 | | Issuing agency(ies) | State Administration for Market Regulation, China National Standardization Administration | GB/T 37990-2019: Technical requirements of anti-washout admixture for underwater concrete---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Technical requirements of anti-washout admixture for underwater concrete
ICS 91.100.30
Q12
National Standards of People's Republic of China
Technical requirements for underwater non-dispersible concrete flocculants
Published on.2019-08-30
2020-07-01 implementation
State market supervision and administration
China National Standardization Administration issued
Content
Foreword I
1 Scope 1
2 Normative references 1
3 Terms and Definitions 1
4 level 2
5 General requirements 2
6 Technical requirements 2
7 Test method 3
8 Inspection rules 6
9 Product manual, certificate, packaging, delivery, transportation and storage 7
Appendix A (Normative) Method for determination of suspended matter content and pH value 8
Appendix B (Normative Appendix) Preparation and maintenance methods for underwater non-dispersive concrete compressive strength test pieces 10
Foreword
This standard was drafted in accordance with the rules given in GB/T 1.1-2009.
This standard was proposed by the Ministry of Housing and Urban-Rural Development of the People's Republic
This standard is under the jurisdiction of the National Concrete Standardization Technical Committee (SAC/TC458).
This standard was drafted. China Building Materials Zhongyan Technology Co., Ltd., China Building Materials Science Research Institute Co., Ltd., China Building Science
Research Institute Co., Ltd., Shenzhen Luji Building Materials Technology Co., Ltd., Guizhou Kejian Building Materials Co., Ltd., Guangdong Red Wall New Materials Co., Ltd.
Limited Company, Nanjing Ruidi High-tech Co., Ltd., Wuhan Sanyuan Special Building Materials Co., Ltd., China Railway Science Research Group Co., Ltd.
Company Standard Metrology Institute, Beijing Urban Construction Group Co., Ltd., Beijing University of Technology, Qingdao Agricultural University, China Petroleum Group Engineering Technology
Research Institute, Naval Service Academy, Gansu Civil Engineering Research Institute Co., Ltd., Qingdao Pacific Underwater Science and Technology Engineering Co., Ltd.
Division, Beijing Zhongyanyi Engineering Technology Development Center Co., Ltd., Shenzhen Maidiyu Admixture Co., Ltd., Tianjin Kangke Lute Technology Development Co., Ltd.
Limited Company, China Railway Construction Group Co., Ltd., Shanxi Jiawei New Materials Co., Ltd., Fujian Architectural Science Research Institute Co., Ltd., Jiangxi
Pingxiang City Lianyou Building Materials Co., Ltd.
The main drafters of this standard. Song Zuobao, Yao Yan, Zhao Haiyang, Li Ting, Luo Gang, Li Xiaoning, Zhu Yuxue, Zhou Wei, Tang Junwu, Wang Jing, Yang Yunxiang,
Bai Lutong, Zhao Lihua, Chen Guoxin, Hou Weihong, Li Wenxiu, Cai Yaning, Liu Xiao, Li Qiuyi, Ning Zujun, Shan Yuzhen, Bai Jie, Chen Kai, Wang Erpo,
Zhang Xiaogang, Mao Jie, Xue Junpeng, Xiong Wei, Du Zhiqin, Zhou Puyu.
Technical requirements for underwater non-dispersible concrete flocculants
1 Scope
This standard specifies the terms and definitions, grades, requirements, test methods, inspection rules and product description of underwater non-dispersible concrete flocculants.
Certificate, certificate, packaging, delivery, transportation and storage.
This standard applies to flocculants for underwater construction concrete.
2 Normative references
The following documents are indispensable for the application of this document. For dated references, only dated versions apply to this article.
Pieces. For undated references, the latest edition (including all amendments) applies to this document.
GB/T 6920 Determination of water pH value - Glass electrode method
GB/T 8075 concrete admixture terminology
GB 8076 concrete admixture
GB/T 8077 concrete admixture homogeneity test method
GB/T 14684 construction sand
GB/T 14685 construction with pebbles and gravel
GB/T 50080 Standard Test Method for Performance of Concrete Mixtures
GB/T 50081 Standard test method for mechanical properties of ordinary concrete
DL/T 5100-2014 technical specification for hydraulic concrete admixture
JG237 concrete test mode
JG244 concrete test mixer
JG/T 248 concrete slump meter
JGJ63 concrete water standard
3 Terms and definitions
The following terms and definitions as defined in GB/T 8075 apply to this document.
3.1
Anti-displeation performance anti-washoutability
Underwater construction concrete resists the loss of slurry and inhibits segregation.
3.2
Underwater non-dispersive concrete anti-washoutunderwaterconcrete
Underwater construction concrete with anti-dispersion properties after adding flocculant.
3.3
Underwater non-dispersive concrete flocculant anti-washoutadmixtureforunderwaterconcrete
When applied in water, it can increase the cohesiveness of concrete mixture and reduce the admixture of cement slurry and aggregate separation.
Note. referred to as flocculant.
Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of GB/T 37990-2019_English be delivered?Answer: Upon your order, we will start to translate GB/T 37990-2019_English as soon as possible, and keep you informed of the progress. The lead time is typically 1 ~ 3 working days. The lengthier the document the longer the lead time. Question 2: Can I share the purchased PDF of GB/T 37990-2019_English with my colleagues?Answer: Yes. The purchased PDF of GB/T 37990-2019_English will be deemed to be sold to your employer/organization who actually pays for it, including your colleagues and your employer's intranet. Question 3: Does the price include tax/VAT?Answer: Yes. Our tax invoice, downloaded/delivered in 9 seconds, includes all tax/VAT and complies with 100+ countries' tax regulations (tax exempted in 100+ countries) -- See Avoidance of Double Taxation Agreements (DTAs): List of DTAs signed between Singapore and 100+ countriesQuestion 4: Do you accept my currency other than USD?Answer: Yes. If you need your currency to be printed on the invoice, please write an email to [email protected]. In 2 working-hours, we will create a special link for you to pay in any currencies. Otherwise, follow the normal steps: Add to Cart -- Checkout -- Select your currency to pay.
|