01506442

Component

Economics, and environmental issues have spurred the introduction of the Warm Mix Asphalt (WMA) technology in the pavement construction industry. The Florida Department of Transportation (FDOT) started using the WMA technology in 2006 based on reported benefits due to lower asphalt mixing and compaction temperatures. Limited field and laboratory studies have indicated that WMA may have similar performance as traditional Hot Mix Asphalt (HMA). However, some studies have also suggested that the use of WMA may increase long-term rutting and stripping potential and hence the long-term performance evaluation of the WMA mixtures is still warranted. With the primary objective of obtaining long-term field performance data of Florida’s WMA, the respective field performance of six representative WMA projects using five different technologies (one additive and four water foaming technologies) was monitored and documented in this paper. The performance of the WMA projects was then compared to the historical performance data of Florida’s asphalt pavements. The results to date indicate that WMA performance is comparable to that of HMA. These projects will continue to be monitored to further assess their long-term field performance.

This paper was sponsored by TRB committee AFD60 Flexible Pavement Design. Alternate title: Evaluation of Warm-Mix Asphalt Performance in Florida.

01503729

14-0144

English

18p

2014

Transportation Research Board 93rd Annual Meeting

Digital/other

Figures; Maps; Photos; References; Tables

Asphalt pavements; Field studies; Pavement cracking; Pavement performance; Rutting; Smoothness; Warm mix paving mixtures

Florida

Highways; Materials; Pavements; I31: Bituminous Binders and Materials

Transportation Research Board Annual Meeting 2014 Paper #14-0144

TRIS, TRB, ATRI

Jan 27 2014 2:10PM