Road construction workers are repairing an 8-kilometer section of the regional highway R-71 Odesa - Ivanivka - Ananiv -Pischane - Khaschuvate -Kolodyste - Ryzhavka - /M-05/ in the Odesa region, using the latest technologies. This is an experimental repair project involving the addition of ashes to the base material.
The State Agency for Reconstruction and Development of Infrastructure announced this in a statement, the CFTS portal reports.
The P-71 highway is one of the most damaged in the Odesa region. It runs through the Odesa, Cherkasy, and Kirovohrad regions.
"Rehabilitation of the highway is important because this route is used to transport large amounts of cargo for various purposes," the statement said.
Ashes and cement will be used to stabilize the base of the roadbed and create a single-layer asphalt concrete surface 5 centimeters thick.
In addition to improving the physical properties of mixes and providing cost savings, fly ash is an environmentally friendly material. Eighty kilograms of fly ash and 20 kilograms of concrete are used per square meter.
This technology will reduce the cost of repairing a section of highway by about one-third.
In general, ashes and slag materials generated by thermal power plants can be actively used in road construction and the production of asphalt concrete, reinforced concrete structures, concrete, concrete blocks, road embankments, and dams.
"The advantage of fly ash is the durability of the technology (including water resistance). The material gains strength quickly and is ready for asphalt paving in two days. This significantly accelerates the entire road construction cycle by at least 40%. In addition, thanks to the ash, the cost of production of construction materials is reduced by 15-20%," the agency said in the statement.