AVIC-KDN Airport Engineering Co., Ltd began to pave the runway surface on Jun. 11th, 2019. The construction area is located at the turning pad of the runway 20 end, with ac-16 (modified asphalt concrete) used at the end of the runway for 120m and SMA-13 (Stone Mastic Asphalt) used in the middle.

The airstrip end adopts the air-graded AC-16 asphalt mixture as suspension (coarse aggregate) air-graded, which can effectively prevent the torque generated by aircraft turning from damaging the asphalt surface layer. The SMA asphalt mixture used in the middle of the runway is coarse aggregate structure with rough surface texture, good anti-rutting and anti-skid performance. This design and construction can maximize the service life of the runway and reduce maintenance work.

Four pavers were used for the pavement construction, closely followed by eight double-wheel rollers, and the runway pavement with a width of 45m was paved at a time, which greatly guarantees the pavement quality while reducing the number of construction joints.

With the gradual reduction of milling work, the paving time on site is increasing little by little and the daily completion quantity will increase substantially. It is expected that the whole runway surface will be completed within 10 days.

The overall quality for the pavement that has been completed is satisfactory, which was highly recognized by the supervisor, the owner and the airport side.