E-Waste Utilization in Concrete: A Systematic Literature Review and Metadata Analysis

The rapid escalation of electronic waste has emerged as a global threat due to its hazardous composition, environmental risk, and limited disposal options. According to the Central Pollution Control Board, 1,70,338 TPD was generated from 2021-22, out of which 91,512 TPD was treated the rest was disposed of in water bodies. In response, the researchers have pioneered the potential incorpora-tion of electronic waste in concrete as a sustainable solution for waste manage-ment and conservation of resources. This piece presents a systematic literature re-view (SLR) of published work regarding e-waste-infused concrete, drawing fo-cus on multiple parameters such as mechanical strength, workability, and durabil-ity. Following the preferred reporting items for systematic reviews and meta-analyses (PRISMA) method, articles from the last two decades were analysed to understand the trends, methodology, and research gaps. Metadata analysis was performed to examine keyword mapping and thematic clustering of the research domain, along with regional contribution. The finding emphasises the benefits of reducing e-waste from the environment, maintaining adequate strength in a certain replacement level, and posing as a cost-saving approach. However, the challenges regarding durability remain a concern due to the leaching property. Ultimately, this study bridges the domains of waste management and construction sustainability, while providing a critical insight for researchers to advance circular economy practices through e-waste valorisation in concrete.