China northern Expressway Toll Station
In northern China, the main factors affecting the durability of concrete are frost damage and corrosion of deicing salt. In 2008, our company used chemtec concrete sealer for protection treatment in northern Expressway Toll Station Lane protection. Chemtec concrete sealer is a concrete protection material widely used in high latitude and cold regions of the United States, which has protected more than 3000 times There are dozens of bridges over 100 years old.
The traffic flow of expressways is calculated by daily traffic volume, which is generally more than 50000 vehicles. Such high-density use frequency will inevitably aggravate the damage of vehicles to the ground. In addition, there are many heavy trucks and large buses passing by. The lane pavement of expressway toll station needs professional protection treatment and close cooperation of advanced protective materials, so as to ensure the high density of lane pavement for a long time to maintain good pavement conditions after using.
After four years of winter and summer alternation in the Toll Station Lane concrete, it can be found from the site inspection in 2012 that chemtec concrete sealer has significantly improved the freeze-thaw resistance, wear-resistance, and chloride ion corrosion resistance of concrete and the pavement protected by chemtec has almost no damage.
Unprotected Lane (exit) after 4 years of use
Lane (exit) protected by chemtec after 4 years of use
Unprotected lane (entrance) after 4 years of use
Lane protected (entrance) by chemtec after 4 years of use