AS 2150—2005 2150—2005
A S 2 1 5 0 — 2 0 0 5
Australian Standard™ . m o c . l a b o l g i a s . e r o t s o f n i / / : p t t h t a n o i s r e v l l u f e h t s s e c c A . e l p m a s e g a p 6 e e r f a s i s i h T
Hot mix asphalt—A guide to good practice
This Australian Standard was prepared by Committee CE-006, Asphalt and Sprayed Surfacing. It was approved on behalf of the Council of Standards Australia on 10 January 2005. This Standard was published on 23 May 2005.
The following are represented on Committee CE-006:
. m o c . l a b o l g i a s . e r o t s o f n i / / : p t t h t a n o i s r e v l l u f e h t s s e c c A . e l p m a s e g a p 6 e e r f a s i s i h T
ARRB Transport Research Australian Asphalt Pavement Association Australian Chamber of Commerce and Industry Australian Government Analytical Laboratories, Scientific Services Laboratory Australian Institute of Petroleum AUSTROADS Standards New Zealand Natio Nat ional nal Ass oci ation ati on of Testin Tes tin g Autho Au tho rit ies Aus tralia tra lia New Zea lan d Bitu B itu men Contr Co ntracto acto rs Ass oci ation ati on Additional Interests: Natio Nat ional nal Asp hal t R esearc ese arch h C o-o rdi nat ion NAR C
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This Standard was issued in draft form for comment as DR 03350.
AS 2150—2005 2150—2005
Australian Standard™ . m o c . l a b o l g i a s . e r o t s o f n i / / : p t t h t a n o i s r e v l l u f e h t s s e c c A . e l p m a s e g a p 6 e e r f a s i s i h T
Hot mix asphalt—A guide to good practice
Originated as AS A7—1966, AS 2150—1978 and AS 2734—1984. AS A7—1966, AS 2150—1978 and AS 2734—1984 2734—1984 revised, amalgamated and redesignated as AS 2150—2005.
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© Standards Australia All rig hts are res erv ed. No p art of t his wor k m ay b e r epr odu ced or c opie d in any form or b y any means, electronic or mechanical, including photocopying, without the written permission of the publisher. Published by Standards Australia, GPO Box 5420, Sydney, NSW 2001, Australia ISBN 0 7337 6686 2
AS 2 150— 2005
2
PREFACE
This Standard was prepared by the Standards Australia Committee CE-006, Asphalt and Sprayed Surfacing, to supersede AS 2150—1995, Hot mix asphal asp halt t . The objective of this Standard is to provide manufacturers, specifiers and designers of asphalt mixes with requirements for the manufacture and placing of asphalt for use in pavements. This Standard is not intended for use as a project specification. Project specifications for most road pavement applications are covered by standard specifications of state road authorities and local government. A guide to project specifications is provided in the Austro Aus troads ads Framewor Fram eworkk for Specifyi Spec ifying ng Asphalt Asp halt and the Australian Asphalt Pavement Association Nat Association Nation ional al Asph A sphalt alt Specific Spe cificatio ation n. . m o c . l a b o l g i a s . e r o t s o f n i / / : p t t h t a n o i s r e v l l u f e h t s s e c c A . e l p m a s e g a p 6 e e r f a s i s i h T
Reference to this Standard may be made in specifications for minor works, in which case the Standard may be used to determine appropriate selection of materials, asphalt manufacture and standards of workmanship. The objective of this revision is to incorporate improvements based on user experience and reflect technical developments taking place in the industry. Major changes to the previous edition are as follows: (a)
Requirements for for mineral filler have have been introduced to replace replace AS 2357, Mineral Mine ral fillers fill ers for asphalt asp halt ..
(b)
Grading envelopes have been revised.
(c)
Mix design requirements for volumetric volumetric properties based on gyratory compaction compaction have been introduced.
(d)
Mix design design requirements requirements for the Hubbard Hubbard Field Field Method Method of compaction have been been deleted.
(e)
Requirements for asphalt spreading, compaction and finished surface properties have been incorporated to replace the asphalt placing requirements that were previously referred to in AS 2734, Asp 2734, Asphalt halt (hot-mixed ) paving — Guide Guide to good practice. practice .
Since the early 1990s joint programs of AUSTROADS, the Australian Asphalt Pavement Association (AAPA) and the ARRB Transport Research Ltd (ARRB TR) have led to the development of new test methods for asphalt. These methods form the basis of the Selection & design of asphalt mixes: mixes : Austral Aus tralian ian provisi pro visiona onall guide gui de,, published by Austroads as APRG Report No 18.
3
AS 2 150 — 2005 2 005
CONTENTS
Page
. m o c . l a b o l g i a s . e r o t s o f n i / / : p t t h t a n o i s r e v l l u f e h t s s e c c A . e l p m a s e g a p 6 e e r f a s i s i h T
1
SCOPE........................................................................................................................ SCOPE.............................................................................................. .......................... 4
2
REFERENCED DOCUMENTS..................................... DOCUMENTS......................................................................... ............................................. ......... 4
3
DEFINITIONS............................................................................................................ DEFINITIONS...................................................................................... ...................... 4
4
MATERIALS.............................................................................................................. MATERIALS......................................................................................... ..................... 7
5
PROPERTIES OF ASPHALT MIXES AND THEIR EVALUATION........................ 9
6
SPECIFICATION AND DESIGN OF A MIX .......................................................... .......................................................... 18
7
MANUFACTURING AND STORAGE OF MIX ..................................................... ..................................................... 19
8
DELIVERY OF ASPHALT ................................................................... ...................................................................................... ................... 22
9
SAMPLING AND TESTING ..................................................................... ................................................................................... .............. 22
10
PREPARATION OF SURFACE TO BE PAVED.................................................. PAVED..................................................... ... 23
11
TACK COATING.......................................................... COATING.............................................................................................. ........................................... ....... 24
12
SPREADING ....................................................................... ........................................................................................................... ...................................... 25
13
COMPACTION ................................................................... ....................................................................................................... ...................................... 29
14
FINISHED PAVEMENT PROPERTIES .................................................................. .................................................................. 34
APPENDICES A B C D E
PLANNING..................................................................................... PLANNING.................................................. ............................................................. .......................... 36 SELECTION OF MIX TYPES ..................................................................... .................................................................................. ............. 39 BASIS OF PAYMENT........................................................ PAYMENT............................................................................................ ...................................... .. 42 REFERENCED DOCUMENTS ................................................................... ................................................................................ ............. 43 PRINCIPLES OF MIX DESIGN ....................................................................... ............................................................................... ........ 45
AS 2 150 — 2005 2 005
4
STANDARDS AUSTRALIA
Australian Standard Hot mix asphalt—A guide to good practice 1 SCOPE
This Standard sets out recommendations for the manufacture, supply and placing of hot mix asphalt for use in pavements, including the following:
. m o c . l a b o l g i a s . e r o t s o f n i / / : p t t h t a n o i s r e v l l u f e h t s s e c c A . e l p m a s e g a p 6 e e r f a s i s i h T
(a)
Component materials.
(b)
Mix properties.
(c)
Mix design.
(d)
Manufacturing, storage and delivery.
(e)
Sampling and testing.
(f)
Preparation of surfaces
(g)
Spreading.
(h)
Compaction.
(i)
Finished surface properties.
(j)
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. NOTE S: 1
Guidance on asphalt planning is given in Appendix Appendix A.
2
Guidance on selection of mix types is given in Appendix Appendix B.
3
Guidance on basis of payment for asphalt work is given in Appendix C.
2 REFERENCED DOCUMENTS
The documents referred to in this Standard are listed in Appendix D. 3 DEFINITIONS
For the purpose of this Standard the definitions below apply. 3.1 Added filler
A fine granular material, the majority of which passes a 0.075 mm sieve, which is added to an asphalt mix to supplement or modify the properties of filler in the mixture. 3.2 Adhesion agent
A substance used for the purpose of promoting the adhesion between a bituminous binder and aggregate. The term usually refers to adhesion in the presence of water. 3.3 Aggregate 3.3.1 Coarse aggregate
General term used to differentiate between various sizes of aggregate, usually material retained on a 4.75 mm sieve. Standards Australia
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