科研之友
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摘要
The dynamic mechanical analysis (DMA) was used to study the microstructure of asphalt mastic, according to the temperature dependence of Han curve, frequency dependence of dynamic viscoelastic properties, such as storage modulus, loss modulus and phase angle. The differences of phase morphology between the base asphalt mastic and the modified asphalt mastic were compared, and the parameter A which is calculated from the loss factor tanδ of asphalt and asphalt mineral powder mastic to evaluate the interfacial interaction of asphalt and mastic. It is proved that the DMA is effective to research the microstructure of asphalt mastic, rendering a theoretical basis for further improvement of the road compatibility of asphalt mastic.
