Emulsified asphalt is an asphalt emulsion in an oil-in-water state. It is a uniform viscous liquid at room temperature and has the characteristics of cold construction, no need for heating, energy saving and environmental protection. Emulsified asphalt is divided into three types according to the different asphalt emulsifiers used in production: slow cracking, medium cracking and fast cracking. The emulsified asphalt used in micro-surfacing construction is BCR emulsified asphalt. Cationic emulsified asphalt has good adhesion to stone. Micro-surfacing construction requires mixing. The emulsified asphalt uses a cationic slow-cracking and fast-setting asphalt emulsifier and adds a polymer modifier to prepare a modified mixing emulsified asphalt.
Slow-cracking and fast-setting emulsified asphalt is mainly used for preventive road maintenance, that is, when the base layer is basically intact and the surface layer has defects, such as smooth, cracked, rutted, and pockmarked surfaces on the road surface.

The construction method is as follows:
1. Spray a layer of tack oil first, and then use a micro-surfacing/slurry seal paver for paving.
2. If the area is relatively small, you can use manual mixing and paving of emulsified asphalt and stone.
3. After paving, scrape it flat and wait for the surface to dry before normal traffic.
It should be noted that slow-cracking and fast-setting emulsified asphalt is suitable for thin layer construction within 1 cm. If the thickness needs to exceed 1 cm, it should be paved in layers. After one layer is dry, the next layer can be paved. If there are problems during construction, you can contact customer service for consultation.
In short, emulsified asphalt, as a special asphalt emulsion, has a wide range of application prospects. In terms of road maintenance, it can improve the service life and anti-skid performance of the road surface and reduce the cost of road maintenance. At the same time, emulsified asphalt also has the advantages of environmental protection and energy saving, which is in line with the current trend of sustainable development in society.