Research Trends on Ash Stabilization in the Pavement during 2002-2021

Incineration ashes should be disposed of appropriately considering environmental issues. Ash stabilization in the pavement is an effective approach to reduce environmental impact and proper disposal. This study aimed to achieve a bibliometric analysis of “ash stabilization in pavement” research during 2002-2021, considering language, chronological trends, source types, subject areas, document types, affiliations, journals, countries, and author keywords. Also, Social Network Analysis was used for trends mapping and global collaborations determination among countries. The results exposed that the number of publications has been significantly increased by more than fourteenfold over the studied period. The United States, by 383 publications, was the leading country, followed by India and China. The most independent rate of the publications belonged to India, by 93.0%. The “Construction and Building Materials” published the most related articles, followed by “Journal Of Materials in Civil Engineering” and “Road Materials and Pavement Design.” Amongst the top ten productive institutes and organizations, four affiliations were from China, and three were from the United States. “Fly ash,” “compressive strength,” “durability,” “geopolymer,” “strength,” and “resilient modulus” had the most growth rate in recent years, based on the author keywords analysis. Besides, the increase of emerging keywords, “pervious concrete,” “reclaimed asphalt pavement,” and “lateritic soil” are noteworthy in the second half period.