Issue 18/2015 - Bitumen for mist sealing layer to replace imports

Recently, the testing center of the Research Institute of the Ministry of Communications has shown that the special asphalt for the fog sealing layer developed by Liaohe Petrochemical Company has a complete product quality of the standard, which can be compared with similar products in the United States, and the anti-wear performance is more outstanding
.
At present, a company in Beijing has purchased 400 tons to replace similar products
in the United States.

It is understood that Liaohe Petrochemical uses different crude oil resources as raw materials to develop special asphalt for fog sealing layer, and after repeated tests and communication and evaluation with customers, it has developed 50#, 30#, 20# fog sealing layer extra hard asphalt, and successfully carried out industrial production
in March.
The customer's application performance evaluation proves that the asphalt has good compatibility with the emulsifier, uniform and stable emulsification effect, and good anti-wear performance
.
The product maintains good adhesion and permeability with the base pavement, which can ensure that the pavement has no skin, no delamination, forms a stable whole with the original pavement, does not stick to the wheel after opening to traffic, ensures effective friction resistance, and has good anti-wear ability and prolongs the service life
of the pavement.

Asphalt for fog sealing is a material
for preventive maintenance of pavement.
In the early stage of fatigue damage caused by the aging effects of ultraviolet rays, water, external forces and other aging effects of asphalt mixture surface material, the micro-cracks caused by spraying thin layer of emulsified asphalt are used to make up for the asphalt adhesion, prevent further damage from water infringement, delay the occurrence of road surface diseases, and extend the service life
of the road surface.
At present, the product is widely used in foreign countries and has good market development prospects
.
Due to the foreign technology blockade, previously, all the domestic highway fog sealing special asphalt relied on imports, which not only had a long transportation period and high price, but also limited the development of
domestic highways.
(Tao)