JT/T 646-2005Specifications and examining methods for highway noise barriers materials (English PDF)

Foreword

Appendix A of this Standard is normative.

This Standard was proposed by Highway Research Institute of Ministry of Transport.

This Standard shall be under the jurisdiction of Science, Technology and Education

Division of Ministry of Transport.

Drafting organization of this Standard. Highway Research Institute of Ministry of

Transport.

1 Scope

This Standard specifies the classification, technical requirements and test methods of

highway noise barriers materials.

This Standard applies to noise barriers materials to reduce traffic noise of various

grades of highways.

2 Normative references

The provisions in following documents become the provisions of this Standard through

reference in this Standard. For dated references, the subsequent amendments

(excluding corrections) or revisions do not apply to this Standard, however, parties

who reach an agreement based on this Standard are encouraged to study if the latest

versions of these documents are applicable. For undated references, the latest edition

of the referenced document applies.

GB 8624 Classification for burning behavior of building materials and products

GB/T 18226 Highway Traffic engineering technical conditions of the steel

component anticorrosion

GB 50003 Code for design of masonry structures

GB 50010 Code for design of concrete structures

GBJ 17 Code for Design of Steel Structures

GBJ 47 Acoustics-sound-abserbin coefficient measurement by method of

reverbration room (Trial)

GBJ 75 Acoustics-measurement of sound insulation in buildings specifications

GBJ 129 Testing methods of basic mechanical performance of masonry

structures

Combustion property of plate-shaped acoustic materials shall meet the requirements

of Class B of GB 8624.

6 Test methods