HOME   Cart(5)   Quotation   About-Us Policy PDFs Standard-List
www.ChineseStandard.net Database: 189759 (19 Oct 2025)

NB/T 10738-2021 English PDF

US$349.00 ยท In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email.
NB/T 10738-2021: Test methods of compaction and bleeding properties of slurry for isolated overburden grouting
Status: Valid
Standard IDContents [version]USDSTEP2[PDF] delivered inStandard Title (Description)StatusPDF
NB/T 10738-2021English349 Add to Cart 3 days [Need to translate] Test methods of compaction and bleeding properties of slurry for isolated overburden grouting Valid NB/T 10738-2021

PDF similar to NB/T 10738-2021


Standard similar to NB/T 10738-2021

AQ 1043   AQ 6206   MT 113   NB/T 10741   NB/T 10746   NB/T 10740   

Basic data

Standard ID NB/T 10738-2021 (NB/T10738-2021)
Description (Translated English) Test methods of compaction and bleeding properties of slurry for isolated overburden grouting
Sector / Industry Energy Industry Standard (Recommended)
Classification of Chinese Standard D09
Word Count Estimation 15,121
Issuing agency(ies) National Energy Administration

NB/T 10738-2021: Test methods of compaction and bleeding properties of slurry for isolated overburden grouting


---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.
Test methods of compaction and bleeding properties of slurry for isolated overburden grouting ICS 73.020 CCSD09 People's Republic of China Energy Industry Standard Slurry compaction and bleeding characteristics of overlying rock isolation grouting testing method 2022-02-16 Implementation Released by the National Energy Administration directory Preface I 1 Scope 1 2 Normative references 1 3 Terms and Definitions 1 4 Test Condition 2 4.1 Materials 2 4.2 Overlying rock isolation grouting filling slurry particles 2 4.3 Water-cement ratio of overlying rock isolation grouting filling slurry 2 4.4 Loading pressure 2 4.5 Loading rate 2 4.6 Electro-hydraulic servo universal testing machine 2 4.7 Slurry Compressor 2 4.8 Test Environment 3 5 Test Process 4 5.1 Preparation before the test 4 5.2 Sample preparation 4 5.3 Slurry Compression Test 4 5.4 Test Record 4 5.5 Supplement 4 6 Test result processing 5 6.1 Calculation of characteristic index 5 6.2 Test report5 Appendix A (Informative) Example 7 of Calculation Method of Loading Pressure Appendix B (normative) requirements for the amount of fly ash and water required for the test8 Appendix C (normative) Pre-Test Record Form 9 Appendix D (normative) Test Record Form 10

foreword

This document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for Standardization Work Part 1.Structure and Drafting Rules of Standardization Documents" drafted. Please note that some content of this document may be patented. The issuing agency of this document assumes no responsibility for identifying patents. This document is proposed by China Coal Industry Association. This document is under the technical management of the Science and Technology Development Department of China Coal Industry Association. This document is drafted by. Huaibei Mining Co., Ltd., China University of Mining and Technology. The main drafters of this document. Zhu Shikui, Xuan Dayang, Ni Jianming, Xu Jialin, Chen Gui, Ni Chao, Wang Binglong, Dong Xianglin, Zhang Liang, Wang Jianwen, Wei Xiangping, Zhang Yanhai, Ma Jun, Yang Jun. Slurry compaction and bleeding characteristics of overlying rock isolation grouting testing method

1 Scope

This document specifies the conditions, procedures and results of the test of the overlying rock isolation grouting and filling slurry compaction and bleeding characteristics. This document is applicable to the testing of slurry compaction and bleeding characteristics of overlying rock isolation grouting.

2 Normative references

The contents of the following documents constitute essential provisions of this document through normative references in the text. Among them, dated citations documents, only the version corresponding to that date applies to this document; for undated references, the latest edition (including all amendments) applies to this document. GB/T 1596 Fly ash used in cement and concrete GB/T 12573 Cement sampling method GB/T 16826 Electro-hydraulic servo universal testing machine GB/T 29251 Vacuum drying oven JC/T 729 Cement slurry mixer JGJ63 Standard for Concrete Water

3 Terms and Definitions

The following terms and definitions apply to this document. 3.1 During the mining process of the working face, high-pressure grouting fills the mining fissures of the overlying rock through ground drilling, and fills the grouting layer from the middle of the working face to the grouting filling layer. Form a compaction support area of a certain width, and use the compaction area and the isolation coal pillar to jointly control the stability of the key layer structure of the overlying rock, thereby controlling the surface A coal mining technology that subsides and realizes the protection of ground buildings (structures), roads and water bodies. 3.2 Overburden isolation grouting fills the slurry injected into the overburden mining fissures during mining (3.1). Note. The main components are fly ash and water, or gangue powder, loess and other materials and water. 3.3 Thresholdstress Overlying rock isolation grouting filling slurry (3.2) is a certain loading pressure value set during the constant rate compressive loading process, and maintains the pressure constant Continue to pressurize until the amount of serous bleeding no longer changes. 3.4 After the overlying rock isolation grouting filling slurry (3.2) made of unit mass of dry fly ash is pressurized and filled with exudate water, the volume of the compacted body formed is the same as that of the system. Ratio of dry fly ash mass used for slurry.

Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of NB/T 10738-2021_English be delivered?

Answer: Upon your order, we will start to translate NB/T 10738-2021_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 NB/T 10738-2021_English with my colleagues?

Answer: Yes. The purchased PDF of NB/T 10738-2021_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+ countries

Question 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.