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The President’s Page New Year Resolutions It may seem strange to speak of New Year resolutions this far into 2008, but not so for those of us involved in building and maintaining roads. Just around the corner is a new season of asphalt paving. The last of the snow has passed (we hope), training classes are over, and asphalt crews are busy preparing plants and pavers for a season of quality asphalt paving. What a great time for setting some New Asphalt Paving Year resolutions! The “experts” tell us that part of goal setting is taking stock in your past performance to evaluate successes and how to continue that progress. Let’s consider that advice. In what have we done well, and how can we do even better? Topping my list are efficiency and innova- tion. In a year full of challenges – brought on by high energy prices, a shrinking housing market and construction materials inflation – efficiency and innovation were spurred. Contractors and agencies alike have looked to be more efficient and innovative. Being productive without waste; that’s what efficiency means. That def- inition perfectly fits the asphalt paving industry and is one of the main reasons asphalt pavements have been so successful. What could be more efficient than a product that can in its entirety be reincorporated into new material? That means zero waste; 100 percent efficiency! The recycling technology that has evolved is a direct result of the chal- lenges imposed on the asphalt paving industry to be more efficient – and the asphalt industry has met that challenge. Not long ago a ripper was used to remove pavement and the material was placed in landfills. Modern practices return “millings” to the asphalt manufacturing facility for further processing of this highly valued “black rock.” Reincorporating this material into new mix mitigates soaring construction inflation, maintains our customers’ buying power and continues them on their way to being successful with asphalt. In this New Asphalt Paving Year, let’s resolve to push efficiency even further. As a contractor, evaluate what in your operation hinders you from maxing out your opportunity to use recycled asphalt – and then I encourage you to do something about it! Are you sufficiently process- ing the material? Are you instilling your customers’ confidence in Recycled Asphalt Pavement(RAP) by the manner in which it is handled, incorporated and performs in new asphalt? As an agency, figure out how you can capitalize on the savings opportunity recycled asphalt presents – and similarly, I encourage you to do something about it! Have you investigated lately the care in which recycled asphalt is given at your local asphalt facility? Are you aware of the significant changes that have occurred in asphalt plants; changes specifically designed for the successful incorporation and performance of recycled asphalt mix? Full utilization of recycled asphalt equates to full efficiency, and full efficiency equates to savings. It is said that necessity is the mother of invention. How true it is, and recently a very innovative approach to asphalt mix manufacturing has come on the scene. 2008 will mark a great experiment in a new Warm Mix Asphalt (WMA) technology. That “new” technology relies on something commonplace among your cappuccino connoisseurs – foaming. Why use foaming in asphalt production? Foaming is another answer to the question of how to economically manufacture quality asphalt mix. What’s the theory? Succinctly, injecting a bit of water into a hot stream of asphalt binder creates an expansion of the binder (foaming). The foamed asphalt has a much larger volume and a much lower viscosity. This allows greater mixing ability and better coating. The reduction in viscosity makes possible a reduction in mixing temperature, thereby reducing the fuel demand to heat the mix – and the result is a cost savings. There are also several side benefits to foamed asphalt (aka Expanded Asphalt Technology). One such benefit is that it facilitates incorpora- tion of recycled asphalt by ensuring the virgin aggregate and recycled asphalt are thoroughly coated – which is an important thing in good- performing mixtures. Another benefit is environmental; besides the increased recycling opportunity that foaming presents, there are indi- cations that reduced emissions may be attained. Encouraged by the potential to stem rising asphalt paving costs, coupled with a strategic initiative to improve environmental steward- ship, the Ohio Department of Transportation (ODOT) is investigating the use of WMA using foaming. For this purpose, ODOT has slated at least six demonstration projects to be let around the state. The projects will include conventional and foamed asphalt mixtures. Through this experiment, ODOT will better ascertain how foamed asphalt can be part of a strategy to deliver a world-class highway system to Ohio’s motoring public – and do so economically. There hangs on my wall a picture left by my predecessor Fred Frecker. It’s a picture of a fully outfitted, embattled football player who has been through a gridiron war. The inscription on that picture reads, “You’re either part of the steamroller or part of the pavement.” That pretty well describes the determination that is needed through challenging times such as these. Embracing efficiency and innovation are part of meeting those challenges. It sounds like a good thing to embrace, as we set our New Asphalt Paving Year resolutions. OA Clifford Ursich President & Executive Director Ohio Asphalt Winter 2008 5PDF Image | Porous Asphalt Pavement
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