To reduce the environmental pollution associated with the construction of asphalt pavements, and to improve the current problems of insufficient stability, durability, and adaptability of cold mix asphalt (CMA), a cold mix emulsified asphalt (CMEA) was prepared by using emulsified asphalt, silane coupling agent, cement, plaster, and mineral powder. The basic properties of CMEA were evaluated through penetration, softening point, and ductility tests. The high-temperature rheological properties of CMEA were analyzed using dynamic shear rheometry (DSR). The microstructure of CMEA was assessed via fluorescence microscopy (FM) and Fourier transform infrared spectroscopy (FTIR) tests. Results indicate that the emulsion within the emulsified asphalt can be uniformly distributed in the form of particles, resulting in improved storage stability. Compared to the original emulsified asphalt, the addition of cement, plaster, or a combination of both shows better stability and deformation resistance. The CMEA with both the silane coupling agent and cement exhibits the optimal performance. This study provides new insights for the modification and application of CMA.
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