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GB/T 21491-2008: Aramid fiber fabric for strengthening and restoring structures
Status: Valid
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 21491-2008 | English | 189 |
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Aramid fiber fabric for strengthening and restoring structures
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GB/T 21491-2008
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Basic data | Standard ID | GB/T 21491-2008 (GB/T21491-2008) | | Description (Translated English) | Aramid fiber fabric for strengthening and restoring structures | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | Q23 | | Classification of International Standard | 83.120 | | Word Count Estimation | 8,875 | | Date of Issue | 2008-03-10 | | Date of Implementation | 2008-09-01 | | Quoted Standard | GB/T 3354 | | Issuing agency(ies) | General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China | | Summary | This standard specifies the structure of aramid fabric reinforcement and restoration specifications and marking, requirements, test methods, inspection rules, signs, packaging, transport and storage. | GB/T 21491-2008: Aramid fiber fabric for strengthening and restoring structures---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.
Aramid fiber fabric for strengthening and restoring structures
ICS 83.120
Q23
National Standards of People's Republic of China
Structural reinforcement and restoration Kevlar cloth
Posted 2008-03-10
2008-09-01 implementation
Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China
Standardization Administration of China released
Foreword
The Standard Appendix A and Appendix B are normative.
The standard proposed by China Building Materials Federation.
This standard by the national fiber-reinforced plastic Standardization Technical Committee.
This standard is drafted by. China Metallurgical Construction Group Research Institute.
Participated in the drafting of this standard. Shenzhen Haichuan Industry Corp., the Japanese rock Teijin Shoji (Shanghai) Co., Ltd., Hangzhou advanced Sochi
Composite Materials Co., Center for Composite Materials bridge Chongqing Jiaotong University, China Jingye Engineering Technology Co., Ltd., the Ministry of Communications Highway Research
Institute.
The main drafters of this standard. Yang Yongxin, Tang Hui Gong, Shao morning, Shentu years, Zhang Xixiang, Zhang Jian, Zhao still pass.
This standard is the first release.
Structural reinforcement and restoration Kevlar cloth
1 Scope
This standard specifies the structural reinforcement and restoration aramid fabric specifications and labeling requirements, test methods, inspection rules, marking, packaging, transport and
Storage and so on.
This standard applies to repair structural reinforcement with Kevlar cloth, but also for transportation, water, nuclear power and energy infrastructure construction
With Kevlar reinforcement and restoration of the cloth.
2 Normative references
The following documents contain provisions which, through reference in this standard and become the standard terms. For dated references, subsequent
Amendments (not including errata content) or revisions do not apply to this standard, however, encourage the parties to the agreement are based on research
Whether the latest versions of these documents. For undated reference documents, the latest versions apply to this standard.
Plastic tensile properties GB/T 3354 oriented fiber reinforced
3 specifications and labeling
3.1 Specifications
Aramid fiber cloth fabric by mass per unit area divided 280g/m2,415g/m2,623g/m2,830g/m2 and other specifications, according to the width of the divided
300mm, 400mm, 500mm and other specifications.
3.2 mark
Kevlar fabric by product code, the mass per unit area, width and number of this standard are marked.
AFF-
Kevlar cloth code
Mass per unit area, g/m 2
GB/T 21491-
Width, mm
Example. mass per unit area of \u200b\u200b280g/m2, a width of 500mm, according to the standard production of Kevlar fabric marked.
AFF-280-500GB/T 21491-2008.
4 Requirements
4.1 Appearance
4.1.1 should look uniform, neat, clean surface, can not be mixed with debris, dust and other pollution can not, must not have holes.
4.1.2 Kevlar cloth missing weft, woof off phenomenon and not more than 2 per 50m.
4.1.3 Each 50m Kevlar cloth off by no more than 10mm longer than the one, broken by not more than 10mm in length and not more than
2.
4.1.4 aramid fiber cloth arranged uniformly, without skew, wrinkling.
4.2 size deviation
Size deviation should be consistent with Table 1.
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