Abstract:To analysis the effect of hydrated lime on improving the adhesion work between asphalt and acid stone, six kinds of asphalt of SK90#, Zhonghai90#, Kelian90#, SK70#, Zhonghai70# and Kelian70# were selected. Based on the surface energy theory, the adhesion work between asphalt and granite was evaluated before and after mixed with hydrated lime under dry and humid conditions. The laboratory boiled test was used to validate the adhesion work. The results show that the total surface energy parameters of the six kinds of asphalt are decreased by 7.6%~10.3% after the hydrated lime is mixed, while the values and proportions of the polar components of surface energy are increased by the adhesion of asphalt and granite. The adhesion work values are increased significantly, and the ability to resist water damage is enhanced. The adhesion work results of asphalt and granite are significantly correlated with the results of water boiling tests, and the effect of hydrated lime for improving the adhesion of matrix asphalt and acid stone is quantified.
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