Akademik Veri Yönetim Sistemi
Journal Of Testing And Evaluation, cilt.45, sa.5, ss.1680-1690, 2017 (SCI-Expanded)
The presented manuscript identifies the mix design parameters important for the glass
transition temperature and thermo-volumetric properties of asphalt–concrete mixes. A
number of compacted specimens were prepared at air-void content, by mixing
composition of materials in terms of aggregate origins, asphalt types, and
gradations. The compacted mixes were later sized to required dimensions and were
subjected to a uniform rate of cooling in a specially designed testing machine. The
contraction of the sample during the cooling was measured by linear vertical displacement
transducers, and the recorded values obtained were converted into longitudinal strain. All
variables investigated in the study were found statistically significant to impact the glass
transition temperature of asphalt paving mixes. The methodology adopted in this study
provides a new approach to predict glass transition temperatures in asphalt–concrete mixes
and identifies the mix parameters that will be helpful in delaying the glass transition
temperature of the mix for reliable performance of asphaltic pavements in cold regions.