Research Article

Evaluating the Surface Free Energy and Moisture Sensitivity of Warm Mix Asphalt Binders Using Dynamic Contact Angle

Table 4

Surface free energy characteristics of aggregate.

Types of aggregateNonpolar component (ergs/cm2)Basic component (ergs/cm2)Acidic component (ergs/cm2)Polar component (ergs/cm2)Total SFE (ergs/cm2)

Limestone58.01401.071.7653.14111.15
Granite44.3046.37678.98354.88399.18

Adopted from Howson et al. [21] and Hesami et al. [22].