Proportion Design Method and Water Stability of Cement-Emulsified Asphalt Cold Recycling Mixtures

Abstract

Nowadays, a large amount of work has been done in the field of emulsified asphalt cold regeneration. Three different proportions of emulsified asphalt cold recycling mixtures were designed by mixing different ratios of new aggregates and RAP, the effect of cement content and RAP content on the mixtures's water stability was studied. The results show that the addition of cement can improve the mixtures's water stability, but there is an optimum content; the mixtures's water stability reduces with the increase of RAP content.