Mexico City Says Adios to Hot-Mix Asphalt
Sep 09, 2010
After using warm-mix asphalt on larger projects in 2008, the city’s engineers determined a complete conversion to warm-mix asphalt was necessary for all paving projects in 2009.
Because the elevation of Mexico City is over 7,300 feet above sea level, cool nights are common with an average nighttime low of 50° F (10° C). Because the city has heavy daily traffic loads on its roadways, all paving is done at night. The low nighttime temperatures can make hot-mix asphalt paving challenging. Evotherm was the perfect solution to address these low temperatures because it enables asphalt mixes to be more workable during cool temperature paving.
This is significant because it represents the first total conversion of a market to warm-mix asphalt.