Short-Term Laboratory Conditioning of Asphalt Mixtures (2015) / Chapter Skim
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1 S U M M A R Y The stiffening of asphalt mixtures over time due to oxidation, molecular agglomeration, and other chemical processes is referred to as aging. Aging occurs due to the heating of the binder during production and construction in the short term and to continued oxidation during its service life.
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2variables as its primary study component. Mineral aggregates and binders were sampled ahead of production and construction in order to fabricate laboratory-mixed, laboratorycompacted (LMLC)
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3 the stiffness of the material through the plant. Increased aggregate absorption was found to actually lower the initial stiffness of mixtures due to increased effective asphalt content dictated by volumetric mixture design requirements.
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4three different behaviors were exhibited for the aging of WMA compared to HMA. In one instance, the aging of WMA proceeded along a stiffening path parallel to that of HMA.
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