Manitoba Infrastructure and Transportation reported on their success extending their road construction season since 2009 with Evotherm WMA to the Reed Journal of Commerce. With over 30 different WMA products on the market, they use Evotherm most often on their roads., particularly in Alberta, Ontario, and the Maritimes.
“We have tried three different products since 2010,” surfacing materials engineer Tara Liske said, “We have found that Evotherm is the one we have been using most often.” Liske mentioned how easy Evotherm is to use since it is readily available and can be added to the asphalt cement prior to mixing in the aggregate. Liske highlighted several benefits of using Eovtherm WMA technology including lower mix temperatures, the environmental impact, better jobsite conditions, longer hauls from constructions sites and extending the length of the paving season.
“The warm mix retains heat and workability longer,” she said, “And we have found Evotherm enhances the durability of our mixes.” Most importantly, warm asphalt can be applied at temperatures as low as zero degrees Celsius, extending the paving season well into fall. “We had crews working into November in past years,” said Liske.