Cienco 4 is piloting a road resurfacing project to address rutting and wheel track depressions.

To address the issue of wheel rutting on the BOT (build-operate-transfer) project of National Highway 1A, from the southern end of Ben Thuy Bridge to the bypass around Ha Tinh city, the investor, Construction Corporation No. 4 (Cienco 4), has launched a campaign to scrape and re-pave the asphalt concrete surface using various methods at points where rutting exceeds the permissible standard.

Road surface being resurfaced on National Highway 1, South Ben Thuy - North Ha Tinh. (Photo: Cienco 4)

Faced with the phenomenon of rutting on asphalt concrete roads during this year's hot season, the Construction Corporation of Transport Works No. 4 proactively detected the problem and quickly implemented temporary measures such as traffic control and watering the road surface to cool it down during peak hours.

Currently, the phenomenon of wheel rutting is being investigated by relevant authorities to determine the cause and find solutions. However, Cienco 4 has decided to proactively implement the treatment by scraping and resurfacing the road with polymer asphalt concrete.

In some sections, Cienco 4 will pilot the use of additional additives as suggested by foreign experts to study the possibility of increasing the softening temperature and withstanding complex overload conditions.

The results of the asphalt paving pilot project will be reported to the Ministry of Transport for application to other rutted roads. (Photo: Cienco 4)

Over the past period, Cienco 4 has focused on researching the best asphalt concrete mix design, suitable for the actual weather conditions and the ongoing and difficult-to-control problem of overloaded vehicles on National Highway 1A from the southern end of Ben Thuy Bridge to the Ha Tinh bypass. Simultaneously, it has invested in a modern milling and scraping line system, currently widely used in many advanced countries around the world.

Mr. Le Ngoc Hoa, General Director of Construction Corporation No. 4 (Cienco 4), affirmed: “The entire process of scraping and repairing has been meticulously planned, ensuring no disruption to traffic flow while maximizing traffic safety and occupational safety. The results of this pilot project will be analyzed and evaluated by Cienco 4 and reported to the Ministry of Transport for application to other rutted roads.”

Furthermore, according to Mr. Hoa, Cienco 4 has completely ceased all traffic lane management activities on National Highway 1A from South Ben Thuy to North Ha Tinh to begin excavation and repair work.

"The Corporation's consistent stance is to urgently and comprehensively implement various measures to protect the route with the goal of ensuring it remains green, clean, beautiful, and safe," shared the General Director of Cienco 4.

It is expected that the asphalt concrete road surface with wheel ruts on National Highway 1A, section Nam Ben Thuy - Bac Ha Tinh, invested in by Cienco 4 under the BOT project and still under warranty, will be fully repaired before July 30, 2014. The cost of scraping and repairing during the warranty period will be borne by the road construction unit and will not increase the project's investment costs.

The project to upgrade and expand National Highway 1A, the section from the southern end of Ben Thuy Bridge to the bypass around Ha Tinh city, commenced on September 7, 2012. With a length of 35.1 km and a total investment of 2,434 billion VND, it was invested under the BOT (Build-Operate-Transfer) model by Cienco 4 as the investor.

After four months of operation, localized rutting and wheel track depressions have begun to appear at several points along the route.

To prevent overloaded vehicles, the Construction Corporation of Transport Works No. 4 independently installed a low-speed dynamic weighing system from June 26th at the Ben Thuy II bridge toll station, thereby detecting nearly 41% of overloaded vehicles circulating on the Vinh city bypass and the expanded section of National Highway 1 between Vinh and Ha Tinh.

According to VNA