BOMAG builds on our vast and practical site experience, coupled with our engineering expertise, in the arena of compaction. Customers who partner with Bomag get to share our successes in engineering breakthroughs and hence, get a competitive advantage in their business both in operations, planning and control, says Blesson Varghese, Managing Director, Marini India, a Fayat Group company. Excerpts from the interview.
What are the latest technologies incorporated in Bomag's range?
The Bomag systems use a combination of equipment to measure compaction values; asphalt mat temperatures are monitored and with GPS tools, our systems provide location and productivity. Using this technology together allows the operator to optimise the job by prioritising work, and compacting areas of asphalt that are cooling before moving to the warmer areas of the mat. This ensures that compaction can be carried out to specification before the mat cools.
Most of the latest systems document the work carried out, showing the contractor what compaction has been done and providing a digital record that can be stored and checked if required.
Tell us about the unique features in Bomag's range for bettering fuel efficiency.
Bomag has always kept fuel efficiency as one of the important parameters, right from product conception. Hence, we have effortlessly increased our machines` capability while trying hard to reduce the causes and reasons for increased fuel consumption. One of the examples is the introduction of the Bomag economiser. With such a system in the machines (ie BPR 100/80D), it allows the user to achieve accurate results in compaction and yet at the same time save fuel and time.
To what extent are visibility and safety taken care of?
As a responsible manufacturer, we have always designed machines that are safe for usage and wherever possible, have the safety redundancy system to protect the machines and operators who are using them. As seen in many of our product brochures, we have in place many simple and effective safety mechanisms for both the operators and machines like Roll-Over-Protection-System (ROPS), safety glass, emergency cut-off system/button, patented side view system, anti-slip control, and one-by-one optimum visibility.
To what extent do the varying mix, structural design and the grade of asphalt binder determine the quality of compaction achieved?
As in any highway design, factors such as design mix and material usage are contributing factors to a good pavement. Bomag has come a long way in this area and we have amassed a good deal of experience. As such, based on the experience we have, we started to design our machines to assist in reducing/arresting the unknown or grey areas. There are many examples where that Bomag has been successful and one of our flagship products is the Asphalt Manager.
The Asphalt Manager allows the operator/engineer to know the site compaction progress instantaneously while compacting. This could be a large site with different design mixes and varying load competency.
In surface finishing applications, is there a move more towards rubber-tyred compactors for better finish of asphalt pavements?
It depends. In Europe definitely, the tandem is doing the finish; in the Middle East, Africa, the PTR is doing the finish. The usage of the different type of rollers like pneumatic tire rollers and tandem rollers depends on site specifications and expectations. However, this does not eradicate the use of tandem rollers in the case of specific performance results, as in PMB pavement applications. Hence, itÆs really back to the drawing board to get an in-depth study of the existing pavement, the design mix versus the axle loading of the local road conditions, etc.