AS 2150-2005

1 - AS 2150-2005 HOT MIX ASPHALT-A GUIDE TO GOOD PRACTICE
4 - PREFACE
5 - CONTENTS
6 - 1 SCOPE
6 - 2 REFERENCED DOCUMENTS
6 - 3 DEFINITIONS
6 - 3.1 Added filler
6 - 3.2 Adhesion agent
6 - 3.3 Aggregate
6 - 3.3.1 Coarse aggregate
7 - 3.3.2 Fine aggregate
7 - 3.3.3 Gap-graded aggregate
7 - 3.4 Asphaltic concrete (AC)
7 - 3.5 Bituminous
7 - 3.6 Bulk density
7 - 3.7 Dense-graded asphalt
7 - 3.8 Fibre
7 - 3.9 Filler
7 - 3.10 Fine gap-graded asphalt (FGGA)
7 - 3.11 Gap-graded asphalt
7 - 3.12 Hot mix asphalt
7 - 3.13 Maximum density (MD)
7 - 3.14 Maximum theoretical density (MTD)
7 - 3.15 Maximum size
7 - 3.16 Modified binder
8 - 3.17 Nominal size
8 - 3.18 Open-graded asphalt (OGA)
8 - 3.19 Open-graded mix
8 - 3.20 Quality system
8 - 3.21 Reclaimed asphalt pavement (RAP)
8 - 3.22 Recycled hot mix asphalt
8 - 3.23 Rejuvenating agent
8 - 3.24 Should
8 - 3.25 Stone mastic asphalt (SMA)
8 - 3.26 Voids filled with binder (VFB)
8 - 3.27 Voids in the mineral aggregate (VMA)
9 - 4 MATERIALS
9 - 4.1 Aggregates
9 - 4.1.1 Coarse aggregate
9 - 4.1.2 Fine aggregate
9 - 4.2 Filler
10 - 4.3 Binder
10 - 4.3.1 Bitumen binder
10 - 4.3.2 Multigrade binder
11 - 4.3.3 Polymer-modified binder
11 - 4.4 Fibre
11 - 4.5 Adhesion agents
11 - 4.6 Reclaimed asphalt pavement (RAP)
11 - 4.7 Rejuvenating agents
11 - 5 PROPERTIES OF ASPHALT MIXES AND THEIR EVALUATION
11 - 5.1 General
12 - 5.2 Composition and volumetric properties
12 - 5.2.1 General
12 - 5.2.2 Particle size distribution (aggregate grading)
12 - 5.2.3 Binder content
12 - 5.2.4 Air voids
12 - 5.2.5 Maximum density (MD) and maximum theoretical density (MTD)
12 - 5.2.6 Bulk density
12 - 5.2.7 Voids in mineral aggregate
12 - 5.2.8 Voids filled with binder
12 - 5.3 Mechanical properties by Marshall method
12 - 5.3.1 General
13 - 5.3.2 Stability
13 - 5.3.3 Flow
13 - 5.4 Other properties
20 - 6 SPECIFICATION AND DESIGN OF A MIX
20 - 6.1 Mix design requirements
20 - 6.2 Mix design procedure
20 - 6.3 Production tolerances
21 - 7 MANUFACTURING AND STORAGE OF MIX
21 - 7.1 General requirements for plants
21 - 7.1.1 Design and construction
21 - 7.1.2 Storage of raw materials
22 - 7.1.3 Feeding of cold aggregates
22 - 7.2 Requirements for batch processing
22 - 7.2.1 Drying and heating
22 - 7.2.2 Screening and storage of hot aggregate
22 - 7.2.3 Proportioning
22 - 7.2.4 Mixing
23 - 7.3 Requirements for continuous processing
23 - 7.3.1 Feeding of cold aggregate
23 - 7.3.2 Drying and heating
23 - 7.3.3 Addition of binder
23 - 7.4 Mixing
23 - 7.5 Storage of mix
24 - 8 DELIVERY OF ASPHALT
24 - 8.1 Vehicles
24 - 8.2 Measurement of mass
24 - 8.3 Temperature at point of delivery
24 - 9 SAMPLING AND TESTING
24 - 9.1 Laboratory
24 - 9.2 Sampling of mix
25 - 9.3 Testing of mix
25 - 9.4 Sampling and testing of aggregates
25 - 9.5 Sampling and testing of filler
25 - 9.6 Sampling and testing of binder
25 - 10 PREPARATION OF SURFACE TO BE PAVED
25 - 10.1 Correction of defects in existing surfaces
25 - 10.2 Pretreatment of granular pavements
26 - 10.3 Cleaning
26 - 10.4 Public utilities
26 - 10.5 Surface condition
26 - 11 TACK COATING
26 - 11.1 General
26 - 11.2 Materials
26 - 11.3 Rates of application
26 - 11.4 Techniques
27 - 12 SPREADING
27 - 12.1 General
27 - 12.2 Spreading by self-propelled paving machine
28 - 12.3 Spreading by hand
28 - 12.4 Asphalt temperatures
29 - 12.5 Layer thickness
30 - 12.6 Joints
30 - 12.6.1 General
30 - 12.6.2 Longitudinal joints
30 - 12.6.3 Transverse joints
31 - 12.7 Automatic level control
31 - 12.8 Techniques
31 - 13 COMPACTION
31 - 13.1 General
32 - 13.2 Equipment
33 - 13.3 Procedure for dense-graded mixes
33 - 13.3.1 General
33 - 13.3.2 Initial or breakdown rolling
34 - 13.3.3 Secondary or intermediate rolling
35 - 13.3.4 Final or finish rolling
35 - 13.3.5 Hand compaction
35 - 13.4 Procedure for open-graded mixes
35 - 13.5 Procedure for stone mastic asphalt mixes
35 - 13.6 Compaction techniques
36 - 14 FINISHED PAVEMENT PROPERTIES
36 - 14.1 Level
36 - 14.2 Thickness
36 - 14.3 Shape
36 - 14.3.1 Surface
36 - 14.3.2 Riding quality
37 - 14.4 Density
38 - APPENDIX A - PLANNING
38 - A1 STRUCTURAL STRENGTH OF PAVEMENT
38 - A2 PAVING TRIALS
38 - A3 SCHEDULING OF WORK
38 - A4 SAFETY IN PAVING
38 - A4.1 General
40 - A5 SUPERVISION
41 - APPENDIX B - SELECTION OF MIX TYPES
41 - B1 GENERAL
41 - B2 CHARACTERISTICS OF PERFORMANCE
42 - B3 MIX TYPES GENERALLY USED
42 - B4 BINDERS GENERALLY USED
44 - APPENDIX C - BASIS OF PAYMENT
45 - APPENDIX D - REFERENCED DOCUMENTS
47 - APPENDIX E - PRINCIPLES OF MIX DESIGN
47 - E1 SCOPE
47 - E2 OBJECTIVES OF MIX DESIGN
47 - E3 MIX DESIGN PROCEDURE
47 - E3.1 General
47 - E3.2 Selection of mix type
48 - E3.3 Selection of materials
48 - E3.4 Aggregate proportions
48 - E3.5 Binder content
48 - E3.6 Laboratory trial mixes
48 - E3.7 Plant trial mixes
49 - E4 DESIGN OF RECYCLED ASPHALT MIXES

Provides recommendations for the manufacture and supply of hot mix asphalt for use in pavements including component materials, mix properties, mix design, manufacturing, storage and delivery, and sampling and testing. Recommendations for mineral fillers are included, as well as for asphalt spreading, compaction and finished surface properties. Appendices dealing with planning and mix design are also provided.

This Standard sets out recommendations for the manufacture, supply and placing of hot mix asphalt for use in pavements, including the following:Component materials.Mix properties.Mix design.Manufacturing, storage and delivery.Sampling and testing.Preparation of surfacesSpreading.Compaction.Finished surface properties.Selection of asphalt mix type.This Standard also provides typical composition and test properties for most common uses of hot mix asphalt; however this does not preclude the use of alternative components or mix properties to meet specific performance requirements.Guidance on asphalt planning is given in AppendixA.Guidance on selection of mix types is given in AppendixB.Guidance on basis of payment for asphalt work is given in AppendixC.

Originated as AS A7-1966, AS 2150-1978 and AS 2734-1984.
AS A7-1966, AS 2150-1978 and AS 2734-1984 revised, amalgamated and redesignated as AS 2150-2005.