Use of fly ash in road construction

Fly ash is a by-product of coal combustion in thermal power plants. While the European Union recycles and utilizes almost all of its fly ash across various industries, only 2.7% is used in our country. This paper researchs the potential applications of fly ash in road construction, including its use in embankment layers, enhancement of mechanical properties, soil stabilization, and as a filler replacement in asphalt mixtures. Research has shown that the use of fly ash can significantly reduce road construction costs, ranging from 30% to 80%.The paper also researchs the technical, ecological, and economic aspects of fly ash utilization in infrastructure projects.