Specification 503
Bituminous Surfacing
Copyright MAIN ROADS Western Australia
MAIN ROADS Western Australia / Specification 503 Bituminous Surfacing / Page 56 of 56Contract xxx/xx / Document 04/10111 Issue 02/10/2015
SPECIFICATION 503
BITUMINOUS SURFACING
REVISION REGISTER
Date / ClauseNumber / Description of Revision / Authorised
By
02/10/2015 / Revision Register 23/09/2011 / Corrected error in reformatting of date field for 09/09/15 update / BPC
09/09/2015 / Various
503.02
503.06
503.12
503.12.2
503.17
503.21
503.29.04(2)
503.29.33.01(1)
503.33.01(7)
503.36.03
503.42
503.42.04
(8 and 9)
503.43.1 & 503.43.6
503.43(4)
503.44
503.44.01(3)
503.45.04(3) & 503.44.03(3)
503C.3.1(1)
Table 503C3
503C.5
Table 503C11
503D.3
Guidance Notes 4.1.3
Guidance Notes 6.2 / Adoption of Austroads terminology for double/double seals
References to geotextile deleted
Deleted Class 170 from title
Updated number of Austroads standard for bitumen sprayers
Deleted Class 170
Details moved to Specification 511
Deleted Class 170
Cutter addition to be approved by Superintendent
Austroads reference updated
New clause sprayer not to move paper
New clause on preparation of an asphalt surface for sealing
New title
New clause on double/double seals
Includes 5% rubber binder
New clause on location of GRS overlap
New title
New clause on double/double seals
Sweeping stone clear of sealed surface
Added approval by Superintendent
Deleted Note 1
Refers to BAR for 14/7mm emulsion seals
Includes 5% rubber binder
Deleted calculation sheet for rubber
Aggregate spread rates now in table
Guidance on use of CRS/170-70 for 14/7mm emulsion seals / BPC
23/09/2011 / 503.02
503.33.01
503.43.3
503.44.03
503.45.02 / References
Sprayers and bitumen tankers compliance
Reference to the updated Austroads Specification for bitumen sprayers
Reference to the current Austroads test methods for bitumen sprayer calibration
Years of service of spray nozzles
Application of Geotextile
Sweeping of GRS
Overlapping spray runs / MME
20/01/2011 / 503.17
503.26
503.33.03
503.33.07
503.42.01
503.43
503.44.02 / Fabric to be stored in shed
Management plan for precoat stockpile sites
Roller for GRS minimum mass
Applicator for geotextile fabric
Pavement temperature for GRS
Nailing fabric, wet fabric and straightness of laying fabric
No drag broom or traffic on GRS / MME
12/10/2010 / 503.06 – 503.16 / Specification 511 replaces Main Roads document 71-6-135 / PSM
01/07/2010 / 503.36.01(3)
503.42.04(6)
503.45.02(6)
Ann. 503C10
Table 503C10 / Spotting of spray lines
Area for spraying
Area for spraying
Line spotting intervals added
New table of precoating rates / PSM
CONTENTS
Clause Page No
GENERAL 6
503.01 SCOPE 6
503.02 REFERENCES 6
503.03 DEFINITIONS 8
503.04 – 503.05 NOT USED 8
PRODUCTS AND MATERIALS 8
503.06 BITUMEN 8
503.07 BITUMEN EMULSION 8
503.08 PROTECTIVE PAPER 8
503.09 NOT USED 9
503.10 MEDIUM CURING CUTTING OIL 9
503.11 SLOW CURING CUTTING OIL 9
503.12 PRECOATING FLUID 9
503.13 ADHESION AGENT 9
503.14 RUBBER GRANULES 9
503.15 ANTI-FOAMING AGENT (RUBBERISED SEAL) 9
503.16 AGGREGATES 9
503.17 Geotextile fabric 10
503.18 – 503.19 NOT USED 10
design of bituminous surfacing 10
503.20 GENERAL 10
503.21 DESIGN METHODS 10
503.22 DESIGNED BY THE PRINCIPAL 11
503.23 DESIGNED BY THE CONTRACTOR 12
503.24 NOT USED 12
preparatory operations 13
503.25 STORAGE AND DISPOSAL FACILITIES for BITUMINOUS MATERIALS 13
503.26 AGGREGATE DUMP SITES 14
503.27 NOT USED 14
bituminous surfacing application 15
503.28 GENERAL 15
503.29 BITUMEN BINDERS 15
503.30 BITUMEN EMULSION BINDERS 15
503.31 – 503.32 NOT USED 16
503.33 PLANT AND EQUIPMENT 16
503.34 – 503.35 NOT USED 19
503.36 SURFACE PREPARATION 19
503.37 – 503.38 NOT USED 21
503.39 PROVISION FOR TRAFFIC 21
503.40 NOT USED 22
503.41 BINDER PREPARATION 22
503.42 APPLICATION - BITUMEN or cutback bitumen 23
503.43 Application of geotextile fabric 27
503.44 APPLICATION OF COVER MATERIAL – bitumen seals 28
503.45 APPLICATION - BITUMEN EMULSIONS 31
503.46 – 503.51 NOT USED 34
503.52 NONCONFORMING TEST RESULTS 34
503.53 NON-CONFORMANCE IN BINDER APPLICATION 35
503.54 CRUSHED AGGREGATE 36
503.55 TESTING FREQUENCY 36
503.56 – 503.80 NOT USED 36
AS BUILT AND HANDOVER requirements 36
503.81 WORKS RECORDS 36
503.82 – 503.90 NOT USED 36
CONTRACT SPECIFIC REQUIREMENTS 36
503.91 – 503.99 NOT USED 36
ANNEXURE 503A 37
SCHEDULE OF WORKS – Seal / reseal 37
ANNEXURE 503b 38
COVER MATERIALS – SUPPLIED BY THE PRINCIPAL 38
ANNEXURE 503C 39
ANNEXURE 503D 46
RECORD FORMS 46
MAIN ROADS Western Australia / Specification 503 Bituminous Surfacing / Page 56 of 56Contract xxx/xx / Document 04/10111 Issue 02/10/2015
SPECIFICATION 503
BITUMINOUS SURFACING
GENERAL503.01 SCOPE
1. The work under this specification consists of the supply and application of the following sprayed bituminous treatments:
a) Primes.
b) Primerseals (both aggregate and sand/crusher dust).
c) Conventional Seals and Reseals.
d) Rubberised Seals and Reseals.
e) Geotextile Reinforced Seals
2. The sprayed bituminous treatment must provide a durable surface that: / Intent
a) bonds to the underlying surface (whether base course, concrete or another bituminous surfacing treatment);
b) provides a safe wearing surface for traffic; and
c) waterproofs the pavement or bridge deck.
3. Where applicable for sealing and resealing works, a separate Schedule of Works is included at Annexure 503A, which provides details of specific surfacing treatments. / Schedule of Works
503.02 REFERENCES
1. Australian Standards, MAIN ROADS Western Australia documents and Test Methods and ASTM test methods are referred to in abbreviated form (e.g. AS 1234, Main Roads 67-08-43 or WA 123). For convenience, the full titles are given below:
Australian Standards
AS 1141 Methods for Sampling and Testing Aggregates
AS2809.5 Road Tank Vehicles for Dangerous Goods – Tankers for bitumen–based products
MAIN ROADS Test Methods
WA 200.1 Sampling Procedures for Aggregates
WA 201.1 Sampling and Preparation of Granulated Rubber
WA 210.1 Particle Size Distribution of Aggregate
WA 212.1 Aggregate Moisture Content: Convection Oven Method
WA 212.2 Aggregate Moisture Content: Microwave Oven Method
WA 215.1 Average Least Dimension
WA 216.1 Flakiness Index
WA 220.1 Los Angeles Abrasion Value
WA 223.1 Crushing Test Value
WA 235.1 Bulk Density of Granulated Rubber
WA 236.1 Particle Size Distribution of Granulated Rubber
WA 237.1 Steel Content of Granulated Rubber
WA 238.1 Rubber Content of Bitumen/Rubber Blends
WA 311.1 Texture Depth
WA 312.1 Ball Embedment
WA 340.1 Sprayed Binder Application Rate: Carpet Tile Method
WA 700.1 Sampling Procedures for Bitumen and Oils
WA 756.2 Stone Coating and Water Resistance Test - Cationic Bitumen Emulsions
Other Standards and Publications
Main Roads WA
Guide to Primersealing with Cutback Bitumen (1985)
Engineering Road Note No 7 - Bitumen Scrap Rubber Seals
Document No. 71-06-137 Use and Design of Geotextile Reinforced Seals
AUSTROADS
Bitumen Sealing Safety Guide
AP-T262-14 Performance Requirements for Bitumen Sprayers
AG:PT/T530 Calibration of Bitumen Sprayers – General Introduction and List of Methods
AG:PT/T531 – Volumetric Calibration of Bitumen Pumps
AG:PT/T532 – Transverse Distribution by Fixed Pit Facility
or
AG:PT/T533 – Transverse Distribution by Field Mat
or
AG:PT/T534 – Transverse Distribution by Portable Trough
AG:PT/T535 – Road Speed Calibration
AP-T09 Austroads Provisional Sprayed Seal Design Method Revision 2000
AP-T37/05 Austroads Technical Report - Geotextile Reinforced Seals
WA Government
Dangerous Goods Safety (Road and Rail Transport of Non-explosives) Regulations 2007
Main Roads Specifications
Specification 201 QUALITY SYSTEMS
Specification 202 TRAFFIC
Specification 203 OCCUPATIONAL SAFETY AND HEALTH
Specification 301 CLEARING
Specification 302 EARTHWORKS
Specification 508 COLD PLANING
Specification 511 MATERIALS FOR BITUMINOUS TREATMENTS
503.03 DEFINITIONS
1. The terms “seal” and “reseal” have the same meaning except where the context of any particular passage indicates otherwise. / Terminology
503.04 – 503.05 NOT USED
PRODUCTS AND MATERIALS
503.06 BITUMEN
503.06.01 general
1. The supply of bitumen shall meet the requirements of Specification 511 MATERIALS FOR BITUMINOUS TREATMENT.
503.06.02 AUDIT SAMPLING AND TESTING
1. The Superintendent may take audit samples at any stage of the production, storage, delivery, or application process. The frequency and timing of sampling will be at the Superintendent’s discretion. The Contractor shall provide the Superintendent with ready access for sampling of bitumen.
2. The cost of material taken, cleaning of the sampling facility and any delays to road tankers or site operations as a result of the sampling shall be considered to have been included in the Schedule of Rates item for bitumen application. Sampling may be carried out by the Contractor on behalf of the Superintendent but a representative of the Superintendent shall be present at the time of the sampling.
503.07 BITUMEN EMULSION
1. The supply of bitumen emulsion shall meet the requirements of Specification 511 MATERIALS FOR BITUMINOUS TREATMENTS.
503.08 PROTECTIVE PAPER
1. Protective paper shall meet the requirements of Specification 511 MATERIALS FOR BITUMINOUS TREATMENTS.
503.09 NOT USED
503.10 MEDIUM CURING CUTTING OIL
1. The cutting oil shall meet the requirements of Specification 511 MATERIALS FOR BITUMINOUS TREATMENT.
503.11 SLOW CURING CUTTING OIL
1. The cutting oil shall meet the requirements of Specification 511 MATERIALS FOR BITUMINOUS TREATMENT.
503.12 PRECOATING FLUID
1. Except for fine aggregates such as sands and crusher dust, all aggregate used as cover material with bitumen or cut-back bitumen shall be precoated with a distillate or bitumen based precoating fluid meeting the requirements of Specification 511 MATERIALS FOR BITUMINOUS TREATMENT. The type of precoating fluid, constituents and rate of precoating shall be as detailed in Annexure 503C.
2. Crushed aggregate for bitumen emulsion surfacing work shall not be precoated with precoating fluid. However, the aggregate may be prewetted with water to assist adhesion of the binder. / Emulsion Seals
503.13 ADHESION AGENT
1. The adhesion agent shall meet the requirements of Specification 511 MATERIALS FOR BITUMINOUS TREATMENTS. / Approved Adhesion Agents
503.14 RUBBER GRANULES
1. The rubber granules shall meet the requirements of Specification 511 MATERIALS FOR BITUMINOUS TREATMENTS.
503.15 ANTI-FOAMING AGENT (RUBBERISED SEAL)
1. The anti-foaming agent shall meet the requirements of Specification 511 MATERIALS FOR BITUMINOUS TREATMENTS.
503.16 AGGREGATES
503.16.01 coarse aggregates
1. Crushed aggregate, including its source rock, shall meet the requirements of Specification 511 MATERIALS FOR BITUMINOUS TREATMENTS.
2. Where Principal-supplied aggregate cover material is made available to the Contractor the Contractor shall use all supplied aggregate cover material before use is made of Contractor-supplied aggregate cover material. Details of Principal-supplied aggregate are given in Annexure 503B. / Principal Supplied Aggregate
3. The source of aggregate supplied by the Contractor shall be nominated with the Tender.
4. The Contractor shall make all necessary arrangements with the nominated supplier concerning load size, rate for supply, timing of the delivery, payment and documentation.
5. Prior to the on-site delivery of crushed aggregate, the Contractor shall provide certification to the Superintendent that the aggregate conforms to specified requirements. / HOLD POINT
6. The Contractor shall organise all cover material supplied under this Contract into clearly identifiable stockpiles either at source or on site in order that they may be tested as required by the Quality Plan. / Stockpiles
7. The maximum size of a lot shall be no more than one day’s production when applicable, or no more than approximately 2000 m3, whichever is the lesser. / Lot Size
8. Any contamination of aggregate after acceptance that is due in any way to the Contractor’s activities shall be corrected at no cost to the Principal. / Contamination
503.16.02 Crusher DUST/SAND
1. Crusher dust/sand used for primer-sealing shall meet the requirements of Specification 511 MATERIALS FOR BITUMINOUS TREATMENTS.
503.17 Geotextile fabric
1. The supply and storage of geotextile fabric shall meet the requirements of Specification 511 MATERIALS FOR BITUMINOUS TREATMENTS.
503.18 – 503.19 NOT USED
design of bituminous surfacing
503.20 GENERAL
1. Unless otherwise specified in Table 503C1 the bituminous surfacing shall be designed by the Principal. Where Table 503C1 specifies design by the Contractor, then the Contractor shall be responsible for and shall carry out the design for the type of treatment(s) specified. / Design Responsibility
503.21 DESIGN METHODS
1. The design of bituminous surfacings shall include selection of binder and design of binder and aggregate application rates unless otherwise specified. Design of binder application rates and aggregate spread rates shall be in accordance with the following:
a) Primerseals (Sand and Metal dust)
The primerseal design, binder composition, binder application rate and aggregate application rates shall be in accordance with the requirements of the Main Roads’ “Primersealing with Cutback Bitumen Design Manual” (1985). / Primerseals
b) Primerseals (Aggregate)
The Primerseal design, binder composition, binder application rate and aggregate application rates shall be in accordance with the requirements of the Austroads Provisional Sprayed Seal Design Method Revision 2000 (AP-T09) or the Main Roads’ “Primersealing with Cutback Bitumen Design Manual” (1985). / Primerseals
c) Seals and Reseals
Single and Double/Double seal design binder composition, binder application rates and aggregate spread rates shall be in accordance with the requirements of the Austroads Provisional Sprayed Seal Design Method Revision 2000 (AP-T09). / Single and Double/
Double Seals
d) SAM and SAMI Seals (Rubberised binder)
Guidance on binder application rate design for SAM and SAMI seals is provided in Main Roads WA Engineering Road Note No 7 – “Bitumen Scrap Rubber Seals”. / SAM and SAMI Seals
e) Geotextile Reinforced Seals / GRS
Guidance on binder application rate designs for GRS and the apportionment of BARs is provided in Austroads Technical Report AP-T37/05 and Main Roads document 71-6-137.
f) Polymer Modified Bituminous Seals (PMBs) / PMBs
Binder application rates and aggregate spread rates shall be designed in accordance with Main Roads WA Specification 509 POLYMER MODIFIED BITUMINOUS SURFACING.
2. Rubberised seal coat applied as a water proof membrane on bridge decks shall have binder composition and binder application rates in accordance with Annexure 503C. / Rubberised Seals Bridge Deck
3. Testing for Average Least Dimension (ALD) shall be carried out in accordance with WA 215.1 or AS 1141.20.1. Sampling for testing of ALD shall be in accordance with either AS1141. 3.1 or WA 200.1. Testing for surface texture shall be in accordance with WA 311.1. Testing for ball embedment the test shall be in accordance with WA 312.1. / Test Methods
503.22 DESIGNED BY THE PRINCIPAL
1. Where Binder Application Rate(s) and other aspects of the bituminous surfacing treatment have been provided by the Principal, the Superintendent will as necessary, order any variations to such design