ASCP2021 6th Concrete Pavements (e)Conference – Proceedings (with video recordings)

Highways, Industrial, Intermodals/Ports, Local Government Members Only

Outline 2020 tested our flexural capacity and at times strained our mental tensile strength to 85% yield. To maintain tradition, ASCP has worked hard to develop a unique line-up of papers and delivery format for its 6th Concrete Pavements Conference which was delivered in August 2021. Like previous biennial conferences,...

ASCP2021 6th Concrete Pavements (e)Conference – Program & Summary

Highways, Industrial, Intermodals/Ports, Local Government Free

Outline 2020 tested our flexural capacity and at times strained our mental tensile strength to 85% yield. To maintain tradition, ASCP has worked hard to develop a unique line-up of papers and delivery format for its 6th Concrete Pavements Conference which was delivered in August 2021. Like previous biennial conferences,...

A Study of Ground Performance for Rigid Pavement Design: Pacific Highway Upgrade at the Warrell Creek Floodplain

Highways Members Only

The alignment of the proposed Pacific Highway upgrade between Warrell Creek to Nambucca Heads traverses five (5) major floodplain areas underlain by deep soft alluvium sediments. The low bearing capacity and high compressibility of foundation soils were found to attract significant ground settlements, with differential settlements to adversely impact the...

CRCP Rehabilitation Design to Rectify Mine Subsidence Damage on M1 Motorway

Highways Members Only

This paper details the concrete reinforced concrete pavement rehabilitation design required to rectify the damage due mine subsidence on the M1 Motorway north of Cockle Creek Killingworth. Concrete pavement settlements had been monitored from July 2003 to November 2010 at a series of locations along the northbound and southbound carriageways....

Application of a Shrinkage Reducing Agent (SRA) in Concrete Pavements

Highways Members Only

SRAs have been used in concrete in Australia since their introduction into the marketplace in the mid1990s. However, its recent application in a major road project in NSW has generated interest from Government bodies, engineers and contractors within this sector of the construction industry. The author therefore wishes to discuss...

Performance of Silicone Sealants in Sawn Joints

Highways Members Only

Concrete pavement joints are required to be sealed to prevent the ingress of debris, mainly incompressible and water. In the year of 2012, there are a number of reports of pavement joint sealants losing adhesion within the first 5 years of service and eventually being mostly depressed under the wheel...

The Performance of Low Noise Diamond Grinding (LNDG)

Highways Members Only

Conventional diamond grinding has been used in Australia since 2010. The purpose of diamond grinding is to improve ride quality and shape, reinstate service texture and reinstate skid resistance. This presentation reports on trials of low noise diamond grinding in NSW, Australia with analysis of performance monitoring results and comparison...

RONDA – Pavement Noise Measurements on Concrete Roads

Highways Members Only

Road traffic noise affects approximately 8 million people in Australia with 2 million seriously affected, far more than from other forms of transportation. As the principal source of road noise is from the tyre/pavement interface and, given that concrete pavements are preferred by many road authorities due to its hard...

JUSTIN Keynote Presentation: Woolgoolga to Ballina – A new delivery method

Highways Members Only

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Merits and Challenges of Increasing Limestone Addition in Cement Used in Concrete Pavement Construction

Highways Members Only

Portland cement has undergone much change in recent decades to cater for rapid construction cycles, longer design life and environmental pressure. Increased fineness, the advent of Portland blended cements incorporating one or more supplementary cementitious materials (SCMs), and reduced clinker content via mineral addition have been the key technological solutions...

New Developments in Rapid Set Concrete Slab Replacements

Airports, Highways, Industrial, Intermodals/Ports, Local Government Members Only

Current and future eras are seeing an operational environment where road occupancy for pavement maintenance or repairs will be severely restricted under conditions of maximising availability for service traffic and access to roadside properties. A key driving force for concrete pavement slab replacement, where required, is the need to use...

Latest Developments for Roller Compacted Concrete (RCC) in USA

Airports, Highways, Industrial, Intermodals/Ports, Local Government Members Only

Roller Compacted Concrete (RCC) is a no slump concrete that is placed by a high density paver and compacted with vibratory rollers similar to asphalt pavement construction. RCC has long history of good performance as a pavement for ports, container yards and manufacturing plants. This paper will summarise a recent...