Research trends in the treatment and recycling of construction and demolition waste based on literature data-driven visualization

In recent decades, research on treatment and recycling of construction and demolition waste (CDW) has rapidly increased due to its substantial environmental, social, and economic impacts. Despite the growing interest in this field, there is a noticeable lack of comprehensive and systematic analysis offering a clear overview of the development context and quantitative trends. To address this gap, this study conducted a systematic bibliometric overview that covers publishing trends, collaborative networks among countries, institutions and research teams, co-citation analysis of literatures, and keyword co-occurrence analysis using literature data-driven visualization. Research trends and future perspectives were identified based on the results and comprehensive review as well as the keywords clusters visualized by literature data. These perspectives highlight several research opportunities. (1) Advanced technologies for CDW treatment are underutilized, which necessitates government involvement and a national disposal charging system. (2) There is a lack of interdisciplinary integration in CDW research. (3) A universally applicable life cycle assessment system for CDW recycling needs to be developed. (4) Research on heavy metal migration and long-term stability in recycled CDW is limited. (5) More studies on CDW reduction in the design stage are warranted, with emphasis on urban planning, building quality, design optimization, and resource estimation. These findings not only enhance understanding of the research trends in treatment and recycling of CDW but also for provide insights for practitioners and researchers at the evolving frontiers of the field.