Views: 30 Author: Site Editor Publish Time: 2020-09-01 Origin: Site
China's slurry technology was introduced in the late 1970s. Due to the limitations of emulsified asphalt machinery technology and emulsifier technology at the time, some slurry pavements appeared to fall off, aggregate runaway, and oil shortage in a short time, which quickly caused the pavement to lose its function and caused a bad influence. Many users have doubts about this technology. This is the main reason for the slow development of China's emulsified asphalt and slurry seal technology from the late 1980s to the mid-1990s.
Due to the maturity of the second generation of slurry sealer technology, and the import of various emulsifier international brands. China's slurry application was rapidly developed in the late 1990s.
1. China's slurry seal technology began to be used in the under layer seal of high-grade roads. The ordinary slow-setting emulsified asphalt is paved with a thickness of 6-12mm, which effectively transfers the load and enhances the waterproof ability of the road surface. The adhesion between the layers is strengthened, and the bonding force between the rigid and the soft is assumed, thereby achieving the purpose of improving the overall strength of the road surface.
2. With the rapid growth of China's high-grade highway mileage,Rutting, cracks, crushing, pits and other diseases caused by the heavy load of the vehicle also become more serious. After 2010s, the technology of Micro surfacing was quickly promoted. China Micro surfacing technology using SBR modified emulsion asphalt, average thickness 10mm, 1-2 hours open the traffic, and average cost USD4.5 per square meter.
3. How to get Micro surfacing formula in China?
the main design of micro-surfacing is supplied by emulsifier supply. First, tell you plan for the project Second, deliver the asphalt and aggregate sample to the emulsifier supplier third, test in the lab and feedback the formula.
Key words: Micro surfacing technology , Slurry sealer in China
