Hungary – Road construction works – Külterületi út fejlesztése

Task Description for the reconstruction of the rural section of Vacsi út under a contract, and the performance of tasks falling within the warranty period.

Current State: The road surface of this section is a cracked asphalt pavement, with many places having horizontal or excessively large camber, and not properly profiled. Its width varies between 4.86 and 5.5 m, generally close to 5.0 m. On both sides of the road, there are "forestry" cultivation areas that have encroached onto the public area. These need to be removed. The road profile is not adequate, so rainwater does not flow off the surface in all places. The municipality manages both sides of the road with drying ditches, which function properly. Their profiling, supplementation, and continuity are tasks. At the beginning and end of the design section, the road surface is to be joined to the existing/remaining surfaces with a 5.0 cm overlap, 6 m in length. After the necessary road base constructions, the profile of the entire track needs to be checked. Since the existing road profile is extremely deformed in several places, a 10 cm M22 levelling layer has been taken into account, which can also act as a sliding layer between the old and new asphalt layers and is not expected to develop harmful cracks transferring from the subbase. This levelling layer must be drawn in profile-level with a finisher. Two layers of asphalt are placed on the already profile-level road base. In the strip above the road widenings, an asphalt reinforcing grid of at least 1.0 m width must be placed in the lower layer. The horizontal alignment does not deviate from the existing alignment, following it everywhere. Cross-sectional design: • Road camber: 2.0% • Shoulder width: 1.5 m, M22 shoulder 20 cm vtg. • Shoulder fall: 4% • Pavement width: 6.0 m

Pavement structure: Road surface renewal: o 4.0 cm vtg. AC-11 F wearing course B50/70, (must be drawn in one pass with a finisher, or a bituminous strip must be placed at the longitudinal joint) o 6.0 cm vtg. AC-16 F binder course B50/70, o 10 cm M22 levelling layer. Finisher installation. (Levelling layer. Average 10 cm thickness.) o Existing pavement structure Shoulder: 1.5 m width, 4% slope, made of 20.0 cm M22 material. On the section affected by road widening: o 4.0 cm vtg. AC-11 F wearing course B50/70 (must be drawn in one pass with a finisher, or a bituminous strip must be placed at the longitudinal joint) o 6.0 cm vtg. AC-16 F binder course B50/70 o 1 layer asphalt reinforcing grid 10% overlap on the newly laid road base section. o 10.0 cm M22 levelling layer. o 10.0 cm vtg. M22 o 30.0 cm vtg. M90 o Compacted subbase.

Length of the section to be renewed: 576 m. Asphalt surface area: 3456 m2. The investment is not subject to a permit. Further details are contained in the technical description - budget, and the design documentation.