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AS 2150:2020

[Current]

Asphalt — A guide to good practice

This Standard sets out recommendations for the manufacture, supply and placing of hot mix and warm mix asphalt for use in pavements.
Published: 11/09/2020
Pages: 45
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Table of contents
Cited references
Content history
Table of contents
Header
About this publication
Preface
1 Scope
2 Normative references
3 Terms and definitions
4 Materials
4.1 Aggregates
4.1.1 Coarse aggregate
4.1.2 Fine aggregate
4.1.3 Crushed recycled glass
4.2 Filler
4.3 Binder
4.3.1 Bitumen binder
4.3.2 Polymer-modified binder
4.4 Fibre
4.5 Adhesion agent
4.6 Reclaimed asphalt pavement (RAP)
4.7 Rejuvenating agents
4.8 Warm mix additives
5 Properties of asphalt mixes and their evaluation
5.1 General
5.2 Composition and volumetric properties
5.2.1 General
5.2.2 Particle size distribution (aggregate grading)
5.2.3 Binder content
5.2.4 Air voids
5.2.5 Maximum density (MD) and maximum theoretical density (MTD)
5.2.6 Bulk density
5.2.7 Voids in mineral aggregate
5.2.8 Voids filled with binder
5.3 Mechanical properties by Marshall method
5.3.1 General
5.3.2 Stability
5.4 Other properties
6 Specification and design of an asphalt mix
6.1 General
6.2 Mix design procedure
6.3 Production tolerances
7 Manufacturing and storage of mix
7.1 General
7.1.1 Design and construction
7.1.2 Storage of materials
7.1.3 RAP
7.1.4 Feeding of cold aggregates and RAP
7.2 Batch plant processing
7.2.1 Drying and heating
7.2.2 Screening and storage of hot aggregate
7.2.3 Proportioning
7.2.4 Mixing
7.3 Continuous plant processing
7.3.1 Drying and heating
7.3.2 Addition of binder
7.3.3 Mixing
7.4 Warm mix asphalt (WMA)
7.5 Storage of asphalt
8 Delivery of asphalt
8.1 Vehicles
8.2 Measurement of mass
8.3 Temperature at point of delivery
8.4 Records
9 Sampling and testing
9.1 Laboratory
9.2 Sampling of asphalt
9.3 Testing of asphalt
9.4 Sampling and testing of aggregates
9.5 Sampling and testing of filler
9.6 Sampling and testing of binder
9.7 Sampling and testing of RAP
10 Preparation of surface to be paved
10.1 Correction of defects in existing surfaces
10.2 Pretreatment of granular pavements
10.3 Cleaning
10.4 Public utilities
10.5 Surface condition
11 Tack coating
11.1 General
11.2 Materials
11.3 Rates of application
11.4 Techniques
12 Spreading
12.1 General
12.2 Spreading by self-propelled paving machine
12.3 Spreading by hand
12.4 Asphalt temperatures
12.5 Layer thickness
12.6 Joints
12.6.1 General
12.6.2 Longitudinal joints
12.6.3 Transverse joints
12.6.4 Automatic level control
12.6.5 Techniques
13 Compaction
13.1 General
13.2 Compaction equipment
13.3 Procedure for dense-graded asphalt
13.3.1 General
13.3.2 Initial or breakdown rolling
13.3.3 Secondary or intermediate rolling
13.3.4 Final or finish rolling
13.3.5 Hand compaction
13.4 Procedure for open-graded asphalt
13.5 Procedure for stone mastic asphalt
13.6 Compaction techniques
14 Finished pavement properties
14.1 Level
14.2 Thickness
14.3 Shape
14.3.1 Surface
14.3.2 Riding quality
14.4 Density
Appendix A
A.1 Structural strength of pavement
A.2 Paving trials
A.3 Scheduling of work
A.4 Supervision and planning
Appendix B
B.1 General
B.2 Characteristics of performance
B.3 Types of asphalt generally used
B.4 Binders generally used
Appendix C
C.1 Scope
C.2 Objectives of asphalt mix design
C.3 Mix design procedure
C.3.1 General
C.3.2 Selection of mix type
C.3.3 Selection of materials
C.3.4 Aggregate proportions
C.3.5 Binder content
C.3.6 Laboratory trial mixes
C.3.7 Plant trial mixes
C.4 Design of mixes using RAP
Bibliography
Cited references in this standard
Content history
[Superseded]
DR AS 2150:2020