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GB/T 25641-2025Road construction and road maintenance machinery and equipment — Asphalt hot recycling plant (English PDF)

道路施工与养护机械设备 沥青混合料厂拌热再生设备

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Issued by

SAMR; SAC

Level / Type

National · Recommended

Issue date

August 29, 2025

Implementation date

March 1, 2026

Scope

GB/T 25641-2025 is the English-translated version of 道路施工与养护机械设备 沥青混合料厂拌热再生设备.

GB/T 25641-2025 is the Chinese national standard covering the plant that reheats reclaimed asphalt and blends it back into new mix — the RAP feed and drying without burning the old binder, the maximum recycled proportion, the mixing accuracy and the temperature control, the dust and blue smoke collection, and the production rate and metering accuracy. Overheating reclaimed asphalt burns the binder that is the whole reason for recycling it, which is why the heating method is the heart of the standard. It replaces GB/T 25641-2010, under the China Machinery Industry Federation. In force from 1 March 2026. Issued on 29 August 2025, it has been in force since 1 March 2026, replacing GB/T 25641-2010.

Document preview — GB/T 25641-2025

National Standard of the People's Republic of China

ICS
91.220
Classification
P 97
Replacing
GB/T 25641-2010

Issued by: State Administration for Market Regulation; Standardization Administration of the PRC

Contents

  • PrefaceIII
  • 1 Scope1
  • 2 Normative References1
  • 3 Terms and Definitions1
  • 4 Main parameters2
  • 5 Technical Requirements3
  • 5.1 Operational Performance Indicators3
  • 5.2 Basic Requirements3
  • 5.3 Assembly3
  • 5.4 Reliability5
  • 5.5 Safety and Environmental Protection6
  • 6 Test Methods6
  • 6.1 Experimental Preparation6
  • 6.2 Measurement accuracy7
  • 6.3 Operational Performance8
  • 6.4 Environmental parameters9
  • 6.5 Reliability10
  • 7 Inspection Rule11
  • 7.1 Factory Inspection11
  • 7.2 Type Testing11
  • 8 Marking, Packaging, Transport and Storage13
  • 8.1 Mark13
  • 8.2 Packaging13
  • 8.3 Transportation13
  • 8.4 Storage13
  • Appendix A (Informative) Test Records of Plant-Mixed Hot Recycling Equipment14
  • Table 1.Main Parameter Series2
  • Table 2.Performance Indicators3
  • Table 3 Reliability Indicators5
  • Table 4 Environmental Emission Indicators6
  • Table 5 Fault Classification11
  • Table 6 Inspection Items12
  • Table A.1 Main Technical Parameters (Design Values) of Plant-Mixed Hot Recycling Equipment Table14
  • Table A.2 Break-in and Test Record of Plant-Mixed Hot Regeneration Equipment Prototype14
  • Table A.3 Material Static Calibration Measurement Accuracy Record Table15
  • Table A.4 Measurement Record of Accuracy of Dynamic Material Batching and Metering15
  • Table A.5 Thermometer Measurement Accuracy Record Table16
  • Table A.6 RAP Moisture Content Test Record Table16
  • Table A.10 Fuel or Gas Consumption Rate Test Record Table18
  • Table A.11 External Noise Measurement Record Table18
  • Table A.12 Record of Operator Ear Noise Measurement (Table 19) Table A.13 Smoke and Dust Emission Test Record Table19
  • Table A.14 Smoke Opacity Measurement Record Table20
  • Table A.15 Record of Measurement of Harmful Gas Components20
  • Table A.16 Particulate Matter Concentration Measurement Record Table20
  • Table A.17 Odor Concentration Measurement Record Table20
  • Table A.18 Reliability Assessment Test Shift Record Table21
  • Table A.19 Reliability Assessment Test Failure Record Table21
  • Table A.20 Reliability Test Record Table22

Foreword

This document complies with the provisions of GB/T 1.1-2020 "Standardization Work Guidelines Part 1: Structure and Drafting Rules of Standardization Documents". Drafting.

This document supersedes GB/T 25641-2010 "Road Construction and Maintenance Machinery and Equipment - Asphalt Mixture Plant Hot Recycling Equipment", and is consistent with...

Compared with GB/T 25641-2010, apart from structural adjustments and editorial changes, the main technical changes are as follows.

a) Terms and definitions have been changed (see Chapter 3, Chapter 3 of the 2010 edition);

b) The main parameter series has been changed (see Chapter 4, Chapter 4 of the 2010 edition);

c) Job performance metrics have been changed (see 5.1, 2010 version 5.1);

d) Increased system requirements (see 5.3.2);

e) Burner requirements have been changed (see 5.3.4, 5.3.3 in the 2010 version);

f) The requirement for sampling ports in the regenerant supply system has been removed (see 5.3.4.3 in the 2010 edition);

g) Increased the capacity requirement for heat recovery silos (see 5.3.6.5);

h) The requirement for dust removal flue gas ducts (see 5.3.8 in the 2010 edition) has been deleted, and the requirement for induced draft systems has been added (see 5.3.9);

i) Safety and environmental requirements have been changed (see 5.5, 5.6 in the 2010 edition);

j) A method for detecting the accuracy of dynamic batching metering has been added (see 6.2.2);

k) The test methods for operational performance have been changed (see 6.3, 2010 version of 6.3);

l) The combustion efficiency test (see 6.4.5 in the 2010 version) has been removed, and particulate matter concentration and odor concentration tests have been added (see 6.4.5). 6.4.6).

Please note that some content in this document may involve patents. The issuing organization of this document assumes no responsibility for identifying patents.

This document was proposed by the China Machinery Industry Federation.

This document is under the jurisdiction of the National Technical Committee on Standardization of Construction Machinery and Equipment (SAC/TC328).

This document was drafted by: Xuzhou XCMG Maintenance Machinery Co., Ltd., Fujian Tietuo Machinery Co., Ltd., and Sany Automobile Manufacturing Co., Ltd.

The company, Chang'an University, CCCC Xi'an Road Construction Machinery Co., Ltd., Fujian Southern Road Machinery Co., Ltd., and Wuxi Xuetao Group Co., Ltd.

Company, Langfang Deji Machinery Technology Co., Ltd., Shandong Provincial Expressway Maintenance Group Co., Ltd., Wuxi Xitong Engineering Machinery Co., Ltd., Tai'an Yueshou Mixing Plant Equipment Co., Ltd., Liaoyang Road Construction Machinery Co., Ltd., China Railway Sixth Survey and Design Institute Group Co., Ltd., Beijing Construction Mechanization Research Institute Research Institute Co., Ltd.

The main drafters of this document are: Liu Jie, Gao Guoqiang, Zhai Zixiong, Huang Yunming, Xie Liyang, Li Can, Hu Lin, Huang Zhiming, Yu Honglin, Rong Xing, and Wang Zhenhua.

Li Ayan, Hou Changwei, Luo Xiaoping, Xiao Jingshi, Yin Zuoyao, Liu Dongyu, Zhang Chenguang, Zhang Yongwei, Liu Zhibin, Li Xin, Zhang Daokun, Zhou Huahua, Wang Zhaoming Huang Wei, Ye Dongming, and Zha Gefei.

The release history of this document and the document it replaces is as follows.

— First published in 2010 as GB/T 25641-2010;

— This is the first revision.

Road construction and maintenance machinery and equipment Asphalt mixture plant hot recycling equipment

1 Scope

This document specifies the main parameters and technical requirements for asphalt mixture plant-mixed hot recycling equipment (hereinafter referred to as "plant-mixed hot recycling equipment"), describing...

The corresponding test methods are described, and the inspection rules, marking, packaging, transportation and storage are specified.

This document applies to the manufacture of plant-mixed hot recycling equipment, and can be used as a reference for the manufacture of integrated virgin and recycled asphalt mixing equipment.

2 Normative references

GB/T 150.1

GB/T 5226.1

GB/T 7920.11

GB/T 11352

GB/T 13306

GB/T 13384

GB/T 17299

GB/T 17808-2021

GB/T 21153

GB/T 30752

GB 50057

3 Terms and Definitions

The terms and definitions defined in GB/T 7920.11, as well as the following terms and definitions, apply to this document.

3.1

The system consists of an asphalt mixture recycled material supply system, a drying and heating system, a hot material storage and metering system, an exhaust system, a hoisting system, and a pneumatic system.

......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 25 pages — is available in the English PDF.

Referenced standards

Editions of GB/T 25641

EditionTitleRevisionStatus
GB/T 25641-2025Road construction and road maintenance machinery and equipment - Asphalt hot recycling plantcurrent editionCurrent
GB/T 25641-2010Road construction and road maintenance machinery and equipment -- Asphalt hot recycling plantprevious editionIn force

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