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CRCP for Rural and Urban Applications

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The First Concrete Freeway in South Africa

Highways Members Only

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...

Enhanced performance of concrete with use of Carbon Nanotube enriched liquid additive

Highways Members Only

The Carbon nanotubes (CNTs) in a liquid additive when used in the design and construction of concrete, serve as nucleation sites during cement hydration to help create a denser, cement paste composition. The result is improved durability and strength. CNT technology remains ‘young’ within Australia; various laboratory and field trials...

W2B Recycled Crushed Glass Project

Highways Members Only

Presentation only

Effects of Vibration on Concrete Mixtures

Highways Members Only

Presentation only

Comparison of PCC Elastic Modulus for Rigid Pavements – Laboratory versus Field

Highways Members Only

Deflections measured using Falling Weight Deflectometer (FWD) device are used to backcalculate the elastic modulus (Epcc) of the concrete slab of a jointed Plain Concrete Pavement (PCP). The two procedures used to estimate the Epcc of the PCP slab from the deflection basins include the AREA method and the Best-Fit...

CSA Concrete Road Slab Replacements A Review of International Practice and Literature

Highways Members Only

Calcium sulfoaluminate (CSA) cements present an opportunity to improve upon a number of the shortcomings of ordinary Portland cement (OPC). The fast setting and rapid strength gain characteristics of CSA cements have led to a worldwide uptake in the operational maintenance area. The use in road and airfield pavements is...

Local Government Path Paving by the Slip Form Method

Highways Members Only

Concrete path paving for pedestrian commuting is visibly abundant in all towns and cities especially in the newly establish residential estates across Western Sydney. Primarily the norm is to have the path paving completed by the conventional hand place methods under local government supervision. This paper will outline the trials...

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....