Analysis and Application of New-Type High Performance Cold-Patch Mixture for Pavement

A new-type high performance cold-patch mixture was made from new-type cold-patch asphalt emulsion, which is able to promote the adhesive effect of asphalt and aggregate. This new mixture boasts advantages such as good workability and being free from bad weather like rain and low temperature. During the production, the evaluation method of cold-patch asphalt material was improved by the adoption of rotary viscosity test and paper trail test. Field tests were carried out on some sections of Linchang Expressway. When compared to existing repair materials, the new-type cold-patch mixture showed better repair effect as well as the potential for a wide range of promotion.