01 September 2010
CANADIAN road maintenance specialist Martec has joined hands with the UAE’s Bund Contracting to introduce a world-class solution for asphalt pavement rehabilitation to the GCC.
Martec-Bund Contracting, which has been set up with an investment Dh50 million ($13.6 million), will offer Martec’s AR2000 super recycler which utilises the Martec process for hot-in-place recycling of asphalt pavements for superior performance.
Vincent Barbosza, executive manager of Martec-Bund, says: “The AR2000 will reduce time and costs, and in most cases actually increase paving quality. The super recycler offers cost savings of up to 35 per cent, a 50 per cent reduction in time, and an output of 4,000 to 10,000 sq m in 10 hours.”
“The hot-in-place paver is the first of its kind in the GCC, and has arrived in the UAE as the county’s first generation of macadam roads are in need of resurfacing. Initially, the machine is to see service in Abu Dhabi, and then will be taken up across the rest of the UAE and GCC,” he adds.
Hot-in-place asphalt recycling is a process for rehabilitating deteriorated asphalt pavements. The operation is performed entirely on site by an equipment train, which begins by applying heat to soften the wearing course of the pavement. The asphalt material, which is loosened and removed by milling devices, is mixed together with or without the addition of rejuvenator. This mixture is then spread along the roadway and compacted to complete the recycling process.
While this basic method of 100 per cent recycling can be quite effective, certain remix options may sometimes be necessary, such as the addition of admixture or aggregate materials for structural correction and upgrading.
The Martec process comprises the following stages: preheating, hot milling, pavement quality improvement, post-heating, drying and mixing, pug mill mixing and lay-down and compaction.