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South Africa's secondary road repairs

May 3, 2012

South Africa's Transport Ministry has set out plans for a new road improvement programme. Called S'Hambe Sonke the US$3.04 billion programme will run for three years and tackle improvements to secondary roads. Filling potholes will be the priority of the plan, which is intended to employ up to 70,000 people during 2011 and help provide work. Labour intensive construction methods will be used according to the Transport Ministry, which means that many of the repairs will use traditional techniques rather than

Costa Rican highway under scrutiny

May 3, 2012

Investigations are in hand in Costa Rica over a series of faults on the highway linking capital San Jose with Caldera. The US$230 million highway has suffered surface cracking in certain stretches, while a number of landslides have also occurred along the route that have required clearing and for repairs to be made. Costa Rica's authorities are investigating Autopistas del Sol following allegations of corruption with regard to the San Jose to Caldera highway project. The investigations are looking at the co

Geosynthetics give extra strength to soil reinforcement

May 3, 2012

Using geosynthetics for soil reinforcement is highly effective but requires a high quality and trusted geogrid. When it comes to deciding which geogrid is best for a specific project, a number of product parameters must be taken into account. In the design of steep slopes, the most important parameter is the available long term design strength (Pdes). Recently, Colbond has significantly increased this factor for its high performance Enkagrid product, recognised with a newly updated BBA (British Board of Ag

Texas highway project tackles congestion

May 3, 2012

A new highway project in Texas will tackle peak congestion A major highway job is underway in Texas at present where contractor Northgate Constructors, a joint venture between Kiewit & Zachary, is working on the huge DFW Connector Project. Northgate is using equipment from Guntert & Zimmerman, an S850, S600, and two TC1500s, on the job.

INTERMAT launch for more Cat E-series excavators

May 3, 2012

Caterpillar is introducing a revised line-up of 20-24 tonne E Series crawler excavators at Intermat 2012. The 320E, 323E and the reduced radius 320E RR adopt the EU Stage IIIB Cat C6.6 ACERTTM engine, providing reduced emissions and fuel consumption savings of up to 11% compared to other D Series models. A wider range of cab seating, including heating and cooling options, comes with the new E Series crawler excavators. Time delay lighting, additional safety handrails and improved serviceability are also sai

Advances in geosynthetics boost soil stabilisation

May 3, 2012

Special fabrics are often used in civil engineering works, including highways, to make soil stronger Geosynthetics have been used in roadway construction for thousands of years with natural materials being mixed with soil to improve quality and stability. While today's products are much more sophisticated, the principles are the same. For example, when used with soil, geotextiles (permeable fabrics) can filter, separate, reinforce, protect, or drain, and they are often made from polypropylene or polyester,

Successful resurfacing at New York's JFK Airport

May 3, 2012

A huge logistics operation has been carried out successfully at New York's JFK Airport. One of the busiest runways at one of the world's busiest airports is now open to air traffic again, following a 120 day closure for resurfacing.

LED road studs provide tunnel guidance

May 3, 2012

Safety in tunnels is of paramount importance, and in 2014 the European Union will be introducing new safety rules for such structures. As in other parts of the world, many tunnels under construction will be built to high standards incorporating the latest technologies.

Fast road repairs

May 3, 2012

ASI Solutions has developed a fast pothole repair technique in the shape of its Rhinopatch process. This comes with a life-time guarantee and is said to offer a fast repair solution when a pothole or other road surface defect fails. The firm says that using this technique means that there is no need for a works team to re-visit a site and further disrupt traffic. The solution is to provide a road repair using replacement material of a superior quality to the existing road surface and to eliminate any joints

Faster repairs

May 3, 2012

Viatec says that the latest version of its Viafix instant cold road repair material offers speedy and reliable pothole repairs. The product has now been well-proven and is winning customers in the UK, such as Wiltshire County Council. Viafix is said to conform to customer needs for reduced repair costs and increased efficiency can cope with both wet and cold conditions and can be used in an array of rural and urban applications, whether traffic loads are heavy or light.