Micro-surfacing emulsified asphalt suitable for low-temperature construction at night as well as preparation method and application thereof

The invention provides micro-surfacing emulsified asphalt suitable for low-temperature construction at night as well as a preparation method and application thereof. The micro-surfacing emulsified asphalt suitable for low-temperature construction at night is prepared from the following raw materials in parts by weight: 50-65 parts of petroleum asphalt, 0.5-10 parts of an emulsifier, 2-6 parts of awarm mixing agent, 35-50 parts of water, 2-10 parts of modified latex and 2-10 parts of an additive. The emulsified asphalt and the mixture prepared by the invention are especially suitable for roadnight construction application, the technical problems that the micro-surfacing demulsification speed is low and the maintenance time is long due to low temperature and high humidity at night and it is difficult to adapt to night construction of expressways in Beijing areas are effectively solved, the pavement has good water seepage resistance, wear resistance and skid resistance, the driving useperformance is good, and th