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Flood repairs in Nigeria
June 18, 2012
Nigeria’s Oyo State is planning to rebuild bridges damaged by flooding in Ibadan and Oyo town. Contracts have now been awarded for the work. The bridges identified for rebuilding are Apete Bridge, Ayeye Bridge, Osoro River Bridge, Ogbere Babanla Bridge, Olomi Bridge and Secretariat Road Bridge in Ibadan as well as Alaadorin Bridge and Sakutu Bridge in the town of Oyo.
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SA government looks at Gauteng e-tolling alternatives
June 18, 2012
The South African government is engaging with the private sector to review alternatives to the e-tolling system on Gauteng highways. The move was announced by the country's deputy president, Kgalema Motlanthe, who repeated his earlier assertion that the "most equitable way" to fund the Gauteng Freeway Improvement Project (GFIP) is via the user-pay system. He added that the underlying cause for frustration relating to the user-pay system should be resolved by engaging with the private sector.
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Is Intelligent Compaction the future of density measurement?
June 18, 2012
Research in the US has shown that using Intelligent Compaction (IC) for quality control purposes can lead to longer-lasting pavements and therefore lower whole life costs. Now the major roller manufacturers are investing heavily in developing new technologies that will meet emerging specifications in the States. “It may take five to ten years but I think that IC will be widely used for both soils, aggregate base and asphalt pavement materials in the US,” said Bob Horan, senior regional engineer at the Asph
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Rubber tyre re-use
June 18, 2012
Re-using crumb rubber in asphalt offers numerous benefits – Mike Woof In the US, the use of crumb rubber from old car and truck tyres in asphalt mixes has been tried over a number of years. The technology has improved considerably too, with this approach now offering much longer lasting performance. Georgia Department of Transportation (GDOT) is one of the latest states to adopt this approach and has amended its road construction specifications to include recycled tyre rubber as an alternative to conventi
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Driver distraction poses safety challenge
June 18, 2012
The risk of driver distraction is growing with the growth in information and communication technologies (ICT). Car manufacturers are under pressure to offer the latest technologies to maintain product strength. But at the same time firms also have to keep process of human interaction with the car simple, to reduce driver distraction.
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Panama plans
June 18, 2012
In Panama the highway operator ENA is looking for funding for work to key road stretches on the North and South corridors. The work is expected to cost US$260 million. The work will include a new 10km stretch as part of Phase II of the Brisas del Golf - 24 Diciembre road at a cost of $114 million. The construction work will be carried out by Mexican firm Ingenieros Civiles Asociados (ICA), which will receive $52 million from the Fiduciary Fund for Development. The rest is still to be sourced. Various soluti
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Recycling advances from Wirtgen
June 18, 2012
German firm Wirtgen is retaining its lead in road recycling technologies – Mike Woof writes Tests on cold recycling with a new layer thickness using Wirtgen's sophisticated WR 4200 machine have shown impressive results according to the firm. The road construction and traffic authority Landesbetrieb Mobilität (LBM) Cochem-Koblenz commissioned a pilot project as part of its plan to optimise the cold in-place recycling process (CIR). The aim was to examine the extent to which the layer thickness can be reduced
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Bidders announced for Panama project
June 18, 2012
The consortium made up of Acciona Infraestructuras and Tradeco from Spain and Mexico and the consortium made up of Odebrecht and Hyundai Joint Venture from Brazil and South Korea plus Vinci Construction Grands Projets from France have pre-quali ed in the tender for the construction of a new bridge at the Atlantic side of the Panama Canal. The second stage of the selection process will involve the client Panama Canal Authority (ACP) sending the contract terms and conditions to bidders. The 75m high and 4.6k
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Stabilising performance from reclaimers
June 18, 2012
New stabiliser/reclaimer models are coming to market – Mike Woof reports With road recycling becoming a more widely used approach, several key manufacturers are meeting demands for higher performance. From BOMAG comes the latest version of the MPH 125 soil stabiliser/recycler, which is now available with the new FLEXMIX technology. This package is said to set new standards in mix quality for all applications, with an optional change in the mix function that broadens the range of options available to the
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Global notebook access 24/7
June 18, 2012
The Handheld Group claim its new rugged notebook with touchscreen is not only faster and easier to use than other similar devices, but also better value for money. Featuring a bright and sunlight-readable display, a 25.6cm widescreen, and weighing in at 1.5kg, the Algiz XRW also comes with Bluetooth, WLAN and GPS, as well as a built in 2 megapixel autofocus camera that allows video conferencing in the field.
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