1.0.1 This specification is formulated with a view to implement the guidelines of "meticulous construction, quality first" and ensure the quality for the construction of the asphalt pavement.
1.0.2 This specification is applicable to newly-build and reconstructed road asphalt pavement project of all grades.
1.0.3 Asphalt pavement construction must comply with the national environment and ecology protection provisions.
1.0.4 Asphalt pavement construction must be provided with construction design and ensured with rational construction period. The asphalt pavement shall not be constructed on condition that the air temperature is less than 10�� (highway and arterial road), or 5�� (other highways), and on occasions of rain day and pavement humidity.
1.0.5 Asphalt pavement should be constructed continuously to avoid cross interference with other procedures which is likely to pollute the asphalt layers, so as to put an end to the construction and transportation pollution.
1.0.6 Asphalt pavement construction shall comply with the requirements of highway traffic condition and project-based climatic conditions; the climate partition is carried out by that shown in Appendix A.
1.0.7 Asphalt pavement construction shall be with good labor protection, so as to ensure construction safety. Asphalt mixing plant is equipped with fire-prevention facilities. Smoking or lighting fires strictly forbid in the overall process for the preparation and commission of liquefied petrolatum asphalt. When using coal pitch, the measures shall be taken to prevent staff inhaling coal pitch steam or avoid skin direct contacting with coal pitch which may cause physical damage.
1.0.8 Asphalt pavement test laboratories shall be certified and with appropriate qualification; the testing personnel shall be certificated, and the instruments and equipments must be accredited.
1.0.9 Asphalt pavement construction shall actively use the tested and practice-effective new technologies, new materials, and new techniques.
1.0.10 The asphalt pavement construction shall not only comply with those specified in this Code, but shall also comply with relevant national current standards and codes. Asphalt pavement construction of special geological conditions and areas shall formulate supplementary provisions in accordance with actual conditions. Provinces, municipalities and autonomous regions, or construction units may formulate corresponding technical guidelines according to specific circumstances, but the technical requirements should not be lower than those specified in this specification.
1. General Provisions 3
2. Terminologies, Symbols and Codes 5
2.1 Terminologies 5
2.2 Symbol and code 8
3. Base 10
4. Materials 11
4.1 General rules 11
4.2 Road petroleum asphalt 11
4.3 Emulsified asphalt 14
4.4 Liquefied petrolatum asphalt 16
4.5 Coal pitch 17
4.6 Modified asphalt cement 17
4.7 Modified emulsified asphalt 19
4.8 Coarse aggregate 21
4.9 Fine aggregate 24
4.10 Filler 25
4.11 Fiber stabilizer 26
5. Hot Mix Asphalt Pavement 28
5.1 General rules 28
5.2 Preparation of construction 28
5.3 Mix design 30
5.4 Mixing of Mixtures 37
5.5 Transportation of mixtures 39
5.6 Spreading of mixtures 40
5.7 Compaction and molding of bituminous pavement 42
5.8 Joining 45
5.9 Traffic-open and others 46
6. Top Dressing and Seal Coat 48
6.1 General rules 48
6.2 Top dressing with layering 48
6.3 Upper seal coat 50
6.4 Lower seal coat 50
6.5 Slurry seal and micro-surfacing 51
7. Asphalt Penetrated Pavement 55
7.1 General rules 55
7.2 Materials specification and usage 55
7.3 Construction preparation 56
7.4 Construction method 57
8. Pavement of Cold-mix Asphalt Mixtures 59
8.1 General rules 59
8.2 Mix design of cold-mix asphalt mixtures 59
8.3 Construction for pavement of cold-mix asphalt mixtures 59
8.4 Cold patch asphalt mixture 60
9. Prime Coat and Tack Coat 62
9.1 Prime coat 62
9.2 Tack coat 63
10 Other Asphalt Pavement Engineering 65
10.1 General Provisions 65
10.2 Sidewalks and non-motorized roads 65
10.3 Heavy vehicle Parks and bus stops 65
10.4 Asphalt pavement over cement concrete bridge deck 66
10.5 Steel deck pavement 67
10.6 Asphalt pavement in highway tunnel 68
10.7 Stone curb and intercepting water curb 68
11 Management, Examination and Acceptance Inspection of Installation Quality 70
11.1 General provisions 70
11.2 Material and equipment inspection before construction 70
11.3 Trial pavement section 71
11.4 Quality control and examination during the construction process 72
11.5 Inspection and acceptance check on the engineering quality at acceptance phase 80
11.6 Construction summary and quality assurance period management of engineering 84
Appendix A Climate Regions for Service Performance of Asphalt Pavement 85
Appendix B Mix Proportion Design Method of Hot-mix Asphalt Mixture 90
Appendix C SMA Mixtures Mix Design Method 107
Appendix D OGFC Mixtures Mix Design Method 111
Appendix E Evaluation Method for the Compaction Degree of Asphalt Layer 113
Appendix F Dynamic Management Method for Construction Quality 116
Appendix G Quality Process Control and Total Amount Inspection Method for Asphalt Pavement 120
Appendix H Explanation of Wording in this Code 123