Recently, the annual pavement maintenance on  No.1 National Highway and No.2 National Highway in the Republic of Congo started.

The length of this pavement maintenance is 18.8 kilometers. The CSCEC team strengthens the innovation of maintenance technology, introduces green materials, utilizes intelligent pavement density detection technology and infrared identification paving technology to ensure the quality of the maintenance, enhance driving comfort and safety, and prolong the service life of the highways.