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JG/T 225-2020Corrugated metal ducts for prestressed concrete (English PDF)

预应力混凝土用金属波纹管

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Issued by

Ministry of Housing and Urban-Rural Development of the People's Republic of China

Level / Type

National · Recommended

Issue date

January 13, 2020

Implementation date

January 13, 2020

Scope

JG/T 225-2020 is the English-translated version of 预应力混凝土用金属波纹管.

JG/T 225-2020 is the Chinese standard "Corrugated metal ducts for prestressed concrete". Issued on 2020-01-13.

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Document preview — JG/T 225-2020

1 Scope
2 Normative references
3 Classification and designation
3.1 Classification
3.2 Designation
4 Requirements
4.1 Structure
4.2 Materials
5 Test methods
6 Inspection rules
7 Packaging and marking
8 Transportation and storage
9 Use

1 Foreword

JG/T 225-2020 was issued by Ministry of Housing and Urban-Rural Development of the People's Republic of China on 13 January 2020.

This standard was proposed by the Ministry of Housing and Urban-Rural Development of the People's Republic of China.

This standard is under the jurisdiction of the Technical Committee on Construction Engineering Quality Standardization of MOHURD.

2 Scope

This standard specifies the classification and designation, requirements, test methods, inspection rules, packaging, marking, transportation, storage and use of corrugated metal ducts for prestressed concrete. This standard is applicable to metal ducts made of galvanized or non-galvanized low-carbon steel strips with spiral folded bite and corrugated profile, which are used to reserve holes in post-tensioned prestressed concrete structures or members.

3 Normative references

GB/T 716 — Cold-rolled carbon structural steel strips

GB/T 2518 — Continuously hot-dip zinc and zinc alloy coated steel sheet and strips

4 About this standard

Issued by: Ministry of Housing and Urban-Rural Development of the People's Republic of China

English translation: about 15 pages (approximate)

5 Classification and status

Prefix JG/T: recommended standard.

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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 15 pages — is available in the English PDF.

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