Connecticut Warm Mix Asphalt (WMA) Pilot Projects 2010 and 2011

摘要

The use of Warm Mix Asphalt (WMA) is fast expanding in the United States. There are numerous benefits to the use of WMA technologies including reduced fuel consumption during production, reduced exposure to fumes due to the reduction in temperature during production and placement, and as an aid to achieving adequate compaction in the field especially with mixtures containing polymer modification. Several pilot projects were constructed during 2010 and 2011 in Connecticut that utilized different WMA technologies for wearing surface replacement. Technologies that were piloted included Sasobit, Evotherm, Advera, SonneWarmix and Astec Double-Barrell foamed asphalt. Sasobit, Evotherm and foaming were each used on two pilot projects, while Advera and SonneWarmix were used on one pilot project. CAP Lab personnel collected samples of all of the different mixes, along with samples of the control mix for each of the different projects, for performance testing in the laboratory.