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JT/T 646.2-2025Highway noise barriers - Part 2: Technical requirements and testing methods of materials (English PDF)

公路声屏障第2部分：材料技术要求及检测方法

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Issued by

Ministry of Transport

Level / Type

National · Recommended

Issue date

August 29, 2025

Implementation date

December 1, 2025

Scope

JT/T 646.2-2025 is the English-translated version of 公路声屏障第2部分：材料技术要求及检测方法.

JT/T 646.2-2025 — This standard specifies the technical requirements and testing methods for highway sound barrier materials. This standard applies to the selection and testing of highway sound barrier materials.

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Document preview — JT/T 646.2-2025

National Standard of the People's Republic of China

Replacing: JT/T 646.4-2016

Issued by: Ministry of Transport

What this standard covers1
Document data2

What this standard covers

This standard specifies the technical requirements and testing methods for highway sound barrier materials. This standard applies to the selection and testing of highway sound barrier materials.

Document data

Estimated length of the Chinese original: 9,918 words.

Supersedes the earlier edition JT/T 646.4-2016.

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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 7 pages — is available in the English PDF.

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