GB/T 21492-2008 in English

《GB/T 21492-2008玻璃纤维增强塑料顶管》由TC39（全国纤维增强塑料标准化技术委员会）归口，主管部门为中国建筑材料联合会。
本标准规定了玻璃纤维增强塑料顶管的分类和标记、原材料与连接、要求、试验方法、检验规则、标志、包装、运输和贮存。本标准适用于公称直径为400mm～3000mm,压力等级为0.1Mpa～1.0Mpa,刚度等级为15000N/m 2～100000N/m 2的地下顶进施工法用GRP顶管。其他公称直径、压力等级，以及更高刚度等级的GRP顶管，也可参照使用。

1 Scope

This Standard specifies the classification and labeling, raw materials and connection, requirements, test methods, inspection rules as well as marking, packaging, transportation and storage of glass fiber reinforced plastics jacking pipe (hereinafter referred to as GRP jacking pipe).
This Standard is applicable to GRP jacking pipe for underground construction by pipe jacking method, with the nominal diameter of 400mm~3,000mm, pressure class of 0.1MPa~1.0MPa and stiffness class of 15,000N/m2~100,000N/m2. The GRP jacking pipe with other nominal diameters, pressure classes and higher stiffness class may also refer to this Standard.

2 Normative References

The following standards contain provisions which, through reference in this text, constitute provisions of this Standard. For dated references, subsequent amendments to (excluding corrections to), or revisions of, any of these publications do not apply. However, the parties to agreements based on this Standard are encouraged to investigate the possibility of applying the most recent editions of the standards. For undated references, the latest edition of the normative document referred to applies.
GB 150 Steel Pressure Vessels
GB/T 1446 Fiber-reinforced Plastics Composites - The Generals for Determination of Properties
GB/T 1447 Fiber-reinforced Plastics Composites - Determination of Tensile Properties
GB/T 1448 Fiber-reinforced Plastics Composites - Determination of Compressive Properties
GB/T 2576 Test Method for Insoluble Matter Content of Resin Used in Fiber Reinforced Plastics
GB/T 3854 Test Method for Hardness of Reinforced Plastics by Means of Barcol Impresser
GB/T 5351 Fiber-reinforced Thermosetting Plastic Composites Pipe - Determination of Short-time Hydraulic Failure Pressure"
GB/T 5352 Fiber-reinforced Thermosetting Plastic Composites Pipe - Determination for External Loading Properties by Parallel-plate Loading
GB 5749 Standards for Drinking Water Quality
GB/T 8237 Liquid Unsaturated Polyester Resin for Fiber Reinforced Plastics
GB 13115 Hygienic Standard for Unsaturated Polyester Resin and Glass Fibre Reinforced Plastics Used as Food Containers and Packaging Materials
GB/T 13657 Bisphenol-A Epoxy Resin

3 Terms and Definitions

For the purpose of this Standard, the following terms and definitions apply.
3.1
Glass fiber reinforced plastics jacking pipe
Piping for underground construction by pipe jacking method, made by certain technology, with akali-free glass fiber and its products as reinforcing materials and thermosetting resin as base material, including (or excluding) sandwich layers of such granular materials as quartz sand.

Foreword I
1 Scope
2 Normative References
3 Terms and Definitions
4 Classification and Labeling
5 Raw Materials and Connection
6 Requirements
7 Test Methods
8 Hygienic Property
9 Inspection Rules
10 Marking, Packaging, Transportation and Storage
Appendix A Dimension Measurement Method (Normative)
Appendix B Axial Compression Strength Test (Normative)
Appendix C Measurement of Circumferential Tensile Strength by Separator Disk Method (Normative)
Appendix D Axial and Circumferential Tensile Strength Test (Normative)
Appendix E Calculation Methods for Deflection Value in Vertical Direction and Ring Stiffness during the Ring Stiffness Test (Normative)
Appendix F Calculation Method of Jacking Force (Informative)