Over the period October 1990 to December 1992 the Roads and Traffic Au1hority (RTA) in NSW has comDleted the rehabilitation of about half a million sauare metres of the Pacific Highway. The work has been located within sections of the Highway from Bulahdelah to the Port Macauarie area. An integral...
ASCP Forum – Pavement Maintenance and Upgrades, Annual General Meeting, Occasional Speaker, Inaugural Industry Awards Evening
With an eye to future rehabilitation solutions, John Hodgkinson re-visited a CRCP overlay constructed on the Hume Highway, just north of Holbrook, in 1992. A significant milestone was reached in June 2021 as the first BCSA Rapid Set Concrete slab celebrated its 10th Birthday in Australia at Sydney International Airport. Since this...
Active Crack Control for Continuously Reinforced Concrete Pavements (CRCP) In Belgium Through Partial Surface Notches
Recent field observations on several newly constructed Continuously Reinforced Concrete Pavements (CRCP) in Belgium have indicated that the crack pattern is characterized as low mean crack spacing (approximately 1.0 m after 2 years in-service) along with a high percentage of clusters of closely spaced cracks. Besides, field surveys also indicate...
ASCP Forum (Online) – Specification Updates, Are You Trusted?, New Exec Director, Open Mic
Concrete is used throughout the World every day in countless diverse applications but it is critically important in terms of performance and durability to understand why the mix design and placement need to be appropriately tailored to suit each application. The inimitable Geoff Ayton will explore what it takes to...
Industry Training for Concrete Paving Crews in Australia | The “Grey Card” Course
In addition to advances in materials and construction equipment there is a continuing need to ensure adequate skills are available within paving crews. Since 2006 concrete pavement crews and their supervisors in Australia have been required to undertake a mandatory one-day course. Known in industry as the “Grey Card” course...
ASCP Forum – Maturity testing | Roller Compacted Concrete | M1RT project | Industry Initiatives
Maturity testing of concrete, and applications for concrete pavements will be explored by Sabrina Garber from Transtec (USA). On a recent motorway project in Sydney roller compacted concrete was adopted as a working platform for pavement construction on local government roads. The successes and lessons learnt will be explored by...
2021 A Subbase Odyssey
The subbase layer has a critical role in the design of concrete pavements. Australia is unique in its routine application of a lean mix concrete subbase layer to much of the heavy-duty concrete pavement highway network, the result of which is a reluctance to adopt any alternative (why fix what...
Specifying Concrete Pavement for Local Government
This presentation will provide an overview of the AUS-SPEC information, tools, technical specification templates, specifications framework and processes to document requirements for various asset life cycle activities. It will also demonstrate the use of the system to create contract documentation for the design, construction, and maintenance of local government infrastructure...
32mm Aggregate Trial at Oxley to Kundabung Pacific Highway Upgrade
This paper focuses on the analysis of pavement sensor data collected from the 32mm aggregate trial at Oxley to Kundabung Pacific Highway Upgrade project. This trial was intended to establish the concrete mix design parameters, verify the paving ability of the mix and to observe the environmental loading behaviour of...
Investigation of Crack Width Development in CRCP
The traffic volume on German motorways increased steadily and this trend is expected to continue in the future. To guarantee mobility in the future and reduce the national economic consequential costs, road construction with a maximum service life and a minimum of necessary maintenance are needed. Rigid road pavements with...