GB/T 21492-2019 English PDF

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GB/T 21492-2019: Glass fiber reinforced plastics jacking pipes
Status: Valid

GB/T 21492: Historical versions

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 21492-2019	679	Add to Cart	6 days	Glass fiber reinforced plastics jacking pipes	Valid
GB/T 21492-2008	959	Add to Cart	5 days	Glass fiber reinforced plastics jacking pipe	Obsolete

Similar standards

GB/T 39491   GB/T 36262   GB/T 36264   GB/T 21491   GB/T 21490   

Basic data

Standard ID: GB/T 21492-2019 (GB/T21492-2019)
Description (Translated English): Glass fiber reinforced plastics jacking pipes
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: Q23
Classification of International Standard: 83.120
Word Count Estimation: 34,380
Date of Issue: 2019-08-30
Date of Implementation: 2020-07-01
Older Standard (superseded by this standard): GB/T 21492-2008
Quoted Standard: GB/T 1447; GB/T 1448; GB/T 1458; GB/T 1634.2-2004; GB/T 2567; GB/T 2573-2008; GB/T 2576; GB/T 2577; GB/T 3854; GB/T 5349; GB/T 5350; GB/T 5351; GB/T 5352; GB/T 8237; GB/T 17470; GB/T 18369; GB/T 18370; GB/T 21238; GB/T 32491; ISO 8639-2016; ISO 10928-2016
Adopted Standard: ISO 25780-2011, NEQ
Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration
Summary: This standard specifies the terms and definitions, classification and marking, raw materials, requirements, test methods, inspection rules, marking, packaging, transportation, storage, delivery certificates and technical documents of glass fiber reinforced plastic jacking pipes. This standard is applicable to glass fiber reinforced plastic pipe jacking (hereinafter referred to as GRP pipe jacking) for jacking construction method with a nominal diameter of 100 mm to 4000 mm, a pressure rating of 0.1 MPa to 3.2 MPa, and a ring stiffness rating of 20000 N/m2 and above. The maximum temperature does not exceed 50 ��. GRP jacking pipes whose nominal diameter and pressure level are not within the scope of this standard can also be used as a reference.

GB/T 21492-2019: Glass fiber reinforced plastics jacking pipes

---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.
Glass fiber reinforced plastics jacking pipes ICS 83.120 Q23 National Standards of People's Republic of China Replace GB/T 21492-2008 Glass fiber reinforced plastic pipe jacking [ISO 25780.2011, Plasticspipingsystemsforpressureand 2019-08-30 released 2020-07-01 implementation State market supervision and administration China National Standardization Administration issued

Content

Foreword III 1 Scope 1 2 Normative references 1 3 Terms and Definitions 2 4 Classification and Marking 3 5 raw materials 3 6 Requirements 4 7 Test method 13 8 Inspection rules 16 9 Marking, packaging, transportation, storage, factory certificate and technical documents 18 10 other 19 Appendix A (Normative) Performance Requirements for Resin Castings 20 Appendix B (Normative) Initial hoop tensile strength specimen 22 Appendix C (Normative Appendix) Limiting Top Force and Allowable Top Force Calculation Method 23 Appendix D (Normative) Long-term bending strain Sb test and determination method 24 Appendix E (informative) Connection Technical Note 27

Foreword

This standard was drafted in accordance with the rules given in GB/T 1.1-2009. This standard replaces GB/T 21492-2008 "glass fiber reinforced plastic pipe jacking", compared with GB/T 21492-2008, the main technology The changes are as follows. ---The nominal diameter has been changed from "400mm~3000mm" to "100mm~4000mm"; the pressure level is from "0.1MPa~ 1.0MPa" was changed to "0.1MPa~3.2MPa"; the minimum stiffness level was changed from "15000N/m2" to "20000N/m2" (See Chapter 1, Chapter 1 of the.2008 edition); --- Added the definition of "vertical vibration process", adding a vertical vibration process to the process classification (see 3.7 and 4.1.2); --- Increased classification by allowable top force (see 4.1.1 and 4.1.6); --- Revised the resin performance requirements, increased the bending strength of the inner liner resin, structural layer resin and accelerated aging bending strength retention rate Requirements (see 5.2.3 and Appendix A, 5.1.1 of the.2008 edition); --- Modified the packing requirements (see 5.3, 5.1.2.2 of the.2008 edition); --- Removed the minimum thickness requirements for the joining material and sleeve (see 5.2.2 and 5.2.3 of the.2008 edition); --- Revised the size requirements (see 6.2,.2008 version 6.2); --- Increased straightness requirements (see 6.2.5); --- Modified the verticality requirements of the pipe end face (see 6.2.6, 6.2.4 of the.2008 edition); --- Increased the quality requirements of the pipe wall component of the straight pipe section (see 6.5); --- Increased initial hoop tensile strength and initial axial tensile strength requirements associated with nominal diameter and pressure rating (see 6.6.2) And 6.6.3); ---Modified water pressure leakage requirements (see 6.6.4, 6.6 of the.2008 edition); --- Revised the initial flexibility requirements and removed the deflection level B (see 6.6.5, 6.5.5 of the.2008 edition); --- Modified the initial axial compressive strength requirements and increased the "axial compression elastic modulus" (see 6.6.6, 6.5.1 of the.2008 edition); --- Increased allowable top force requirements (see 6.6.7); --- Increased long-term performance requirements (see 6.7); ---Modified and added test methods (see Chapter 7, Chapter 7 of the.2008 edition); --- Removed hygienic performance requirements (see Chapter 8 of the.2008 edition); ---Modified inspection rules (see Chapter 8, Chapter 9 of the.2008 edition); --- Added technical documentation (see 9.5.3); --- Added connection technology description (see Chapter 10 and Appendix E); --- Increased long-term bending strain Sb test and determination method (see Appendix D); --- Removed the dimension measurement method (see Appendix A of the.2008 edition); --- Removed the axial compression strength test method (see Appendix B of the.2008 edition); --- Removed the method of measuring the hoop tensile strength of the tube by the separation disc method (see Appendix C of the.2008 edition); --- Remove the vertical deflection and ring stiffness calculation method for the ring stiffness test (see Appendix E of the.2008 edition); --- Removed the allowable top force table given by the minimum wall thickness (see F.3 of the.2008 edition). This standard uses the redrafting method with reference to ISO 25780.2011 "Plastic pipes for water supply, irrigation, drainage or sewage under pressure and pressure" System based on unsaturated polyester resin glass fiber reinforced thermoset plastic (GRP) system with jacking technology for installation with flexible joints The pipe is compiled to be non-equivalent to ISO 25780.2011. This standard was proposed by the China Building Materials Federation. This standard is under the jurisdiction of the National Fiber Reinforced Plastics Standardization Technical Committee (SAC/TC39). This standard is drafted by. Wuhan University of Technology, Beijing FRP Research and Design Institute Co., Ltd. Participated in the drafting of this standard. Zhenshi Yongchang Composite Materials Co., Ltd., Hengrun Group Co., Ltd., Shanghai Yaohua FRP Co., Ltd. Lianyungang Zhongfu Lianzhong Composite Materials Group Co., Ltd., Dongguan Gongda Composite Materials Co., Ltd., Foshan Qifeng FRP Co., Ltd. Zhejiang Dongfang Haobo Pipe Industry Co., Ltd., Fujian Lutong Pipe Industry Technology Co., Ltd., Changsha Xinshi Pipeline Co., Ltd., Jiangxi Kede New Material Materials Co., Ltd., Liaoning Water Industry FRP Pipe Co., Ltd. The main drafters of this standard. Chen Jianzhong, Li Zhuoqiu, Hu Zhongyong, Lu Qin, Lu Yong. The previous versions of the standards replaced by this standard are. ---GB/T 21492-2008. Glass fiber reinforced plastic pipe jacking

1 Scope

This standard specifies the terms and definitions, classification and marking of glass fiber reinforced plastic pipe jacking, raw materials, requirements, test methods, inspection rules Then, signs, packaging, transportation, storage, factory certificates and technical documents. This standard applies to nominal diameters of 100mm~4000mm, pressure grades of 0.1MPa~3.2MPa, and ring stiffness grades. Glass fiber reinforced plastic pipe jacking (hereinafter referred to as GRP pipe jacking) for.20000N/m2 and above, the maximum temperature of the medium is not exceeded Over 50 ° C. GRP pipe jacks whose nominal diameter and pressure rating are not within the scope of this standard can also be used.

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. Test method for tensile properties of GB/T 1447 fiber reinforced plastics GB/T 1448 fiber reinforced plastics compression performance test method GB/T 1458 filament wound reinforced plastic ring specimen tensile test method Plastics -- Determination of deformation temperature of plastics - Part 2. Plastics, hard rubber and long fibre reinforced composites material GB/T 2567 resin casting body performance test method GB/T 2573-2008 Test method for aging properties of glass fiber reinforced plastics GB/T 2576 fiber reinforced plastic resin insoluble content test method GB/T 2577 glass fiber reinforced plastic resin content test method GB/T 3854 reinforced plastic Barcol hardness test method Test method for axial tensile properties of GB/T 5349 fiber reinforced thermosetting plastic tubes GB/T 5350 fiber reinforced thermosetting plastic tube axial compression performance test method GB/T 5351 fiber reinforced thermosetting plastic pipe short-time water pressure failure pressure test method GB/T 5352 fiber reinforced thermosetting plastic tube parallel plate external load performance test method GB/T 8237 liquid unsaturated polyester resin for fiber reinforced plastics GB/T 17470 glass fiber chopped strand mat and continuous strand mat GB/T 18369 glass fiber roving GB/T 18370 glass fiber roving GB/T 21238 glass fiber reinforced plastic sand pipe GB/T 32491 Glass fiber reinforced thermosetting resin tube and pipe fittings for long-term hydrostatic test ISO 8639.2016 Test method for the verification of the sealing and structural design of glass fiber reinforced thermosetting plastic pipes and fittings [Glass-reinforcedthermosettingplastics(GRP)pipesandfittings-Testmethodsforleaktightness Andproofofstructuraldesignofflexiblejoints] ISO 10928.2016 Plastic pipe system glass fiber reinforced thermosetting plastic pipe and fittings regression analysis method and its application [Plasticspipingsystems-Glass-reinforcedthermosettingplastics(GRP)pipesandfittings-Methods Forregressionanalysisandtheiruse] ......

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