This polymer modified asphalt emulsion of the CSS-1h (EMA) formula combines liquid bitumen and fast-dry Para rubber homogeneously. It is used to enhance the asphalt's properties. The road surface applied with the emulsion can be opened for traffic within an hour. The road surface has high resistance to slipping, offering high adhesion, extending the service life by 2-2.5 times over the original method, and saving road repair budgets.