In order to ensure the quality of the National Highway 1A restoration project, the Vietnam Road Department requested the construction unit to repair damaged road surfaces with asphalt concrete, return road markings, and repair the traffic safety system. pine.
Accordingly, the repair location has a total area of about 108,000 m2 across the project, accounting for 11.4% of the road surface area. The upgrade and repair project aims to ensure smooth operation of the route, repair, maintenance, and prevent damage to ensure traffic safety.
The total investment of the restoration project is more than 61 billion VND, project implementation period is from November 2023 to June 2024. The investor of this project is Cienco4 Group.
The construction unit is working on National Highway 1A, the section bypassing Vinh City to Ha Tinh City. Photo: CTV
Vietnam Road Administration said that the current status of National Highway 1A, Section National Highway 1A South of Ben Thuy Bridge – Ha Tinh City bypass, the road surface locations are damaged in the form of turtle shell cracks, the cracks have connected into a network. small, slightly peeling, definitely rutting < 2.5cm: Proceed to scrape off the old damaged surface layer with an average thickness of 5cm; Then, the carpet restores the road surface level with a 5cm thick layer of asphalt concrete (using subsidence-resistant additives).
For damaged road surface areas with tortoise shell cracks, widespread connecting cracks, broken asphalt, rutting > 2.5cm: Proceed to scrape off the old damaged surface layer to a medium thickness. 12cm tank, then the carpet is returned in order from bottom to top as follows: watering standard adhesion-absorbent CSS-1 emulsion 1.0 kg/m2, 7cm thick C19 asphalt concrete layer, watering adhesion CRS-1 emulsion , standard 0.5 kg/m2, C16 asphalt concrete layer 5cm thick (using anti-rutting additive).
In the section of National Highway 1A, avoiding Vinh City, for locations where the road surface is locally damaged in the form of turtle shell cracks; The cracks have connected into a small network, are slightly peeling, and have ruts < 2.5cm: Scratch off the old damaged surface layer with an average thickness of 7cm, then replace the carpet with a thick layer of asphalt concrete. 7cm (using anti-sink additives).
With the traffic safety system, the system of signal markings will be repainted and completed with reflective thermoplastic paint according to National Technical Regulations on road signs; Repair and add some signs on the route to ensure traffic safety.
Information about the plan to repair and upgrade National Highway 1A bypass from Vinh City to Ha Tinh City, Mr. Lam Hoang Linh – Deputy Director of Vinh City Bypass BOT Branch, part of Cienco4 Group said that the unit is urgently implementing Declaring and repairing damages on the project. First of all, is the section of National Highway 1A, the section south of Ben Thuy bridge to the bypass route of Ha Tinh city.
Immediately after the decision was made, the unit immediately began construction and deployed work from morning to night at major damaged locations; First of all, Ha Tinh province.
Mr. Linh said that in recent times, many vehicle owners have been frustrated because some sections of the route have deteriorated. To resolve this situation, Cienco4 Group (investor) and Vinh City Bypass BOT Branch have continuously monitored and handled serious breakdown points.
“Large-scale repairs must go through many approval procedures and contractor selection… so it has not been possible to immediately meet people’s needs in recent times,” Mr. Linh shared.
According to Mr. Linh, the Road Department’s approval of the restoration plan is the basis for the investor to make large-scale repairs, creating peace and reducing people’s frustrations.
