Resources

Roundabouts are being constructed to provide improved traffic facilities at a variety of intersections ranging from local collector/distributor roads to arterial roads and highways. They increase overall community amenity by reducing traffic speeds and accidents — by limiting the number of conflict points the potential for collisions is reduced and...

During the first two weeks of October, in excellent weather, a group of six engineers from four Australian States participated in the C&CAA-arranged study mission to Europe. The mission was established to study the topics of: • concrete tollway operations. • road widening/overlays. • quality systems as applied to construction...

Salamanca Place Hobart is a unique historic area dating from the 1830s, its Georgian sandstone buildings flanking a 24-metre-wide roadway built over an old wharf area originally used by the whaling fleet and shipping lines. A row of plane trees now totally define the road beyond which are the Marine...

The National Association of Australian State Road Authorities (NAASRA) has recently published the Guide to the Structural Design of Road Pavements which supersedes the Interim Guide to Pavement Thickness Design published in 1979. The new guide incorporates a mechanistic design procedure for flexible pavements that represents a quantum leap forward...

The AMCORD URBAN strategy of the 1990s highlights the need to offer greater and more cost-effective choice of urban housing of quality. Along with this need, the study recognised the relevance of infrastructure in terms of physical and social elements.

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...

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...

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...

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...

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...

The first concrete freeway in South Africa was constructed between 1970 and 1971. It consisted of a dual carriageway, two-lane freeway with plain/jointed concrete pavement (PCP) for the traffic lanes and asphalt for the two shoulders. Three years after opening wider than normal hairline cracking was observed close to the...

Presentation only