WMA - Warm-Mix Asphalt

Warm-mix asphalt (WMA) is a relatively new product that is rapidly gaining popularity.  Drastic reductions in mix temperatures of 50 to 75 degrees Fahrenheit have been achieved resulting in obvious benefits of cutting fuel consumption and decreasing the production of greenhouse gases and reduction in worker exposure to fumes. Engineering and construction benefits include better compaction of pavements, the ability to pave at lower temperatures, extending the paving season, and the ability to recycle at higher rates. WMA is produced using the same gradation and design methodologies as conventional hot mix asphalt and is transported and placed using the same equipment.

Research is being conducted to evaluate whether WMA pavement lasts even longer than HMA pavement by reducing aging of the pavement during the production process. The liquid asphalt is exposed to less heat which reduces oxidation, so the pavement retains greater elasticity and is less susceptible to thermal cracking during cold weather. WMA should be considered for any new construction projects with a strong commitment to sustainability.

Paving with WMA requires no special equipment and S.C. Construction is dedicated to the ecological and economic benefits of using this product. During the manufacturing process, we regulate the additive and test the material. We assess its durability against strict quality guidelines that guarantee the best product and service for every job.