▎ 摘　　要

NOVELTY - A pothole (220) is repaired by forming greater than or equal to 1 undercut cavities in the pothole wall, below a surrounding road surface; clearing debris and removing loose asphalt pieces from the pothole; filling the pothole and greater than or equal to 1 undercut cavities with aggregates; and applying an expanding polymer base binder to fill greater than or equal to 1 portion of the volume between the aggregates. USE - Repairing of pothole in roadway. ADVANTAGE - The composition for repairing potholes is a synthetic binder formulated to meet mechanical, thermal, rheological and physical properties similar to asphalt-concrete. The methods and materials may allow to fill and repair a pothole in a road, in minutes, reducing lane closure time cuts and enhances worker safety while improving the overall economic impact of road maintenance. The repaired pothole functions and lasts the entire life of the road life span. The pothole repair process may be carried out in any weather condition. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for: (1) making expanding polymer-based binder, in situ, which involves providing, from a first container, a first polymeric component; providing, from a second container, a second polymeric component, where the second polymeric component is configured to chemically react with first polymeric component to form an expanding polymeric matrix; providing a reaction rate modifier from one of a third container and the first container mixed with the first polymeric component; mixing, in a mixer, the first and the second polymeric components and the reaction rate modifier to form the expanding polymer-based binder; where containers and mixer are carried by a single apparatus, and the mixing is performed in situ, prior to the application of the expanding polymeric based binder; (2) portable apparatus for making an expanding polymer-based binder, in situ, comprising a portable platform holding a first container for holding greater than or equal to 1 first polymeric component; a second container for holding a second polymeric component; and a mixer for mixing the first and second polymeric components and a reaction rate modifier to form the polymer-based binder, where the reaction rate modifier is received from one of a third container held by the portable platform and mixed with the first polymeric component in the first container, and where the second polymeric component is configured to chemically react with the first polymeric component to form an expanding polymeric matrix; and (3) synthetic composite material for repairing potholes comprising 30-95 wt.% aggregates; and an expanding polymer-based binder. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic view of the portable apparatus for making an expanding polymer-based binder. Pothole (220) Optical sensing system (240) Pothole layers (260) Pothole volume and depth (270) Temperature and relative humidity in the pothole (280)