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Innovative technology is use is providing efficient, clean burning engines - Mike Woof reports The development of new diesel engine technology has, for the off-highway equipment sector, been the single most expensive research field for the industry since these machines first started being manufactured. Aimed at reducing the emissions of nitrous oxide as well as particulate matter, in a phased series of stages the engine emission improvements will make major changes to the construction sector. In real world

Best known as an equipment maker, JCB has been steadily building its profile in the engine market – Mike Woof reports JCB has now produced over 200,000 engines, despite having entered this market as recently as 2004, while the company is also launching an all-new diesel. The company has built over 17,000 engines at its JCB Power Systems plant, and in excess of 30,000 atits factory in India where production started as recently as April 2011. Alan Tolley, director engine programmes said that, “…2004 was a tur

Established players face increasing competition in the market for bulldozers and graders - Mike Woof reports The world’s largest manufacturer of construction equipment, Caterpillar is a company with a strong position worldwide and this has all grown from its track type tractor range. Caterpillar has long dominated the bulldozer market, as well as being involved in the grader segment since the inter-war period. The firm’s history ties it directly to the development of the crawler track with Ben Holt’s track

New technologies allow efficient use of recycled asphalt - Mike Woof writes The Eurobitume/Euroasphalt 2012 event in Istanbul earlier this year proved an important event with regard to asphalt recycling innovations. Key developments in this technology were announced, particularly in the field of asphalt production. One of the notable papers came from E-MAK, part of the Turkish Simge Group, which focused on its RATEK system. This technology is designed to use recycled asphalt and can produce greater throughp

South Africa takes crumb rubber use to the next level - *Anders Marschall Jensen The preservation of the environment is a global concept, and in the road construction industry, it is all about preservation of roads. In earlier days, roads were built with the primary goal of moving passenger traffic from one place to another, but these days, roads are very different. Not only is there passenger traffic, and more of it, but roads must also deal with extensive movement of products in heavy vehicles. Therefore,

Novel crushing and screening developments are coming to market - Mike Woof reports A wide array of innovations and market developments are occurring in the sector for quarrying machinery. New technologies are being introduced while business developments are also changing the face of this market segment. There is strong interest in new technology from industry too and this was well highlighted by data from the organisers of the Hillhead quarry show in the UK. The organisers revealed that there was a jump of

The use of reclaimed asphalt pavement (RAP) is common practice in many countries. The aged bitumen from RAP has a lower penetration and is more viscous than it was when first mixed. The reclaimed bitumen is generally balanced by the addition of fresh binder softer than the traditional one used to produce hot mixes. However, balancing penetration and softening point or viscosity does not produce an identical bitumen to the original one. One fundamental option is the regeneration of the aged binder in order t

The historic city of Raleigh in North Carolina is one of the few cities in the US that was planned and built specifically to serve as a state capital and its population and traffic volume have grown enormously in recent years An indicator of Raleigh's growth has been the need for an expanded roadway system to serve Wake County. As early as the 1970s there were plans for a Western Wake Expressway. This developed into a 112km, interstate-grade beltway, known as the Raleigh Outer Loop, which will encompass Ral

A series of rural road rebuilds have improved transport connections in the Czech Republic, helping to boost connectivity and the local economy The roads around Brandýs nad Labem, some 25km to the southwest of Czech capital Prague are crucial arteries to the rural and agricultural areas of the country. An assessment by regional authorities indicated that these roads are in need of repair. That led to cold planing and paving work on a series of rural roads near Brandýs nad Labem. The regional authorities had

Dual layer paving offers benefits to wear life as well as major cost reductions - Mike Woof reports The concept of laying the binder course and wearing course at the same time is not new to the road construction market. Various contractors have been working on systems over a number of years, with several manufacturers helping directly with these projects. A number of firms have investigated this method but three manufacturers in particular, Dynapac and Vögele in Europe and Sumitomo in Japan, have made major