EXPERT ADVICE
“ Asphalt additives can improve mixture density at both normal and cooler temperatures ...”
In that spirit of a solution is only an app away and fiction is a mere precursor of reality , how close is an asphalt mix or sealcoat additive that can help paving contractors extend the working season into the colder months ? Imagine an additive that could heat things long enough to place asphalt pavement and sealcoat it beyond the seasonal deadline and for it to properly cure ? Are innovations anywhere near that point or is that still confined to imagination ?
Asphalt mix and sealcoat experts were asked about ways to extend the asphalt paving season into the fall-winter seasons . Paving contractors throughout North America are interested . “ Asphalt additives can improve mixture density at both normal and cooler temperatures ,” stated Michael Longshaw , PE , field engineer with Arkema-Road Science , a division of ArrMaz , Mulberry , Fla . “ This allows for longer hauls and lower temperature applications while also improving aggregate-asphalt adhesion properties .”
Craig Good , senior manager , design group with Arkema-Road Science , added : “ Widening the compaction temperature window provides additional daily and seasonal opportunities for contractors , and achieving density over a longer season , typically a pay item , also helps the contactor ’ s bottom line .” Much of the challenge with sealcoating in particular appears to be around faster drying time . Out of necessity , contractors sometimes need faster drying and curing time . “ As far as I know , all sealcoatings , in general , have limitations when it comes to cold temperatures ,” said Rick Poole , president , Diamond Shield Fortifier , Alexander , Ark . “ We do offer patented products that cause a reaction of heat in the film allowing a faster dry / cure period , which in turn also allows longer seasons and resistance to cooler www . callape . com [ 14 ] 1.800.210.5923