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Infrastructure Management and DeliveryIndustry Forum
Pavements, Materials and Geotechnical initiatives
A presentation by Michael PickeringDirector (Pavements, Research and Innovation)
15 November 2013
Tourism Construction
Mining Agriculture
Four Pillars of the Queensland Economy
Customers First
Ideas into Actions
Unleash Potential
Be Courageous
Empower People
Queensland Public Service Values
Queensland Plan
The
A 30 year vision for Queensland
Government Priorities
Initiatives
(Replacing the Pavement Design Manual)
Pavement Design Supplement (PDS)
Enhancements
Recent developments
• Valuable input from industry experts• 176 comments received and addressed
Industry consultation
Key value for money improvements
• > alignment with Austroads• > options for improved layers• Cover over expansive subgrades related to risk
Key value for money improvements
• Selection of unbound granular materials• Guidance for CMB pavements• Strength of lime stabilised subgrades
Key value for money improvements
Key value for money improvements
Key value for money improvements
Construction Materials Testing Supplier Registration System (CMT SRS)
What is it?
Construction Materials TestingSupplier Registration System
Construction Materials Testing Supplier Registration System
• New standalone
document
• Requirements
Implementation
How to register
TMR Quarry Assessment and Registration System (QARS)
Background
• Road construction materials (quarry products) procured from contractors who purchase from quarry operators
• Quality• Need to meet requirements of specifications
Components
QARS applies to
QARS and specifications
Scope of QARS
• Registered quarries now on internet• Updated requirements for Material Quality
Management Plans (MQMPs)• Control to achieve best quality• Identify risk• Ensure conformance• Varying complexity
Recent improvements and developments
• Assessment of >310 quarries• Developing new guidelines for MQMPs
• Revise EN10• Developing quarry specific testing frequencies
Current / immediate challenges
Looking ahead
Looking ahead
Contact• Ajith (Diss) Dissanayake,
Principal Engineering Geologist• (07) 3066 7785
Further information
Asphalt Procurement Harmonisation with
NSW Roads and Maritime Services
Why change?
Industry Drivers• Production based mix design• More consistent approach• <cost
Why change?
Mix Design Registration• Supplier fully responsible for mix design• < cost & time• Test methods
Expected benefits
New technologies• > use of RAP• > use of WMA
Expected benefits
Expected benefits
Durability• > minimum binder
content• More uniform
compaction• Increased penalties
Performance• 12 months defect liability period• 2 year warranty
Expected benefits
Productivity• Removal of waterproofing
seal below DGA wearing surfaces
Consistency in approach• RMS specification default
unless sound technical reason to change.
Expected benefits
Implementation
Initiatives
