Research Trends on Construction Insulation Materials Incorporating Fiberglass from End-of-Life Wind Turbine Blades and Textile Waste with Bio-Binders

Waste from the wind power and textile industries poses considerable challenges concerning CO2 emissions. While the textile industry is a major global contributor to waste, producing around 92 million tons of waste annually, and greenhouse gas emissions, wind power, although one of the cleanest energy sources during operation, still generates waste and associated CO2 emissions, particularly associated with the end-of-life decommissioning of turbine blades. In addition to reusable waste, bio-based solutions, such as bio-binders, can reduce the construction sector’s long-term environmental impact. The present work aims to identify trends and opportunities in the use of these waste materials, either individually or combined, for the development of thermal and acoustic insulation solutions for use in the construction sector. With that purpose, a bibliometric and content analysis of scientific articles indexed in Scopus and Web of Science from 2014 to 2025 was carried out. The study focuses on the physical properties of the resulting composites, including those produced with bio-binders. Results reveal growing scientific interest, highlighting an annual publication growth of 5.09 %. They emphasize the excellence of natural textile fibers in thermal and acoustic insulation, the mechanical capacity of synthetic fibers, and the semi-structural potential of fiberglass composites. Meanwhile, bio-binders improve the upcycling of textile waste; however, they reveal a critical gap in wind turbine blade integration. These findings advocate hybrid innovations and standardized assessments to drive circular economy and low-carbon building solutions.