Abstract
The construction industry produces an enormous quantity of waste that may be recovered and expended as recycled aggregates to replace or supplement natural aggregates. A more sustainable construction sector is a result of recycling since it decreases waste and energy usage. Because of natural aggregates are in short supply and have a related carbon footprint, recycled materials are being evaluated more and more for use in concrete. Using recycled aggregates in concrete has environmental advantages, however the physical characteristics of the aggregates causes it to perform poorly. Lightweight aggregate concrete encompasses of water, lightweight aggregates (LA), and cement. Full lightweight concrete uses just light aggregates (coarse and fine) and sand lightweight concrete uses either all or part of common sand for the fine aggregate. A combination of low strength, large water absorption, low apparent density, and great porosity characterizes the lightweight aggregate used in this kind of concrete. There are three distinct kinds of LA based on where they come from, for example, expanded slag ball, fly ash ceramisite, cinder, light sand, and other industrial waste products that undergo processing to become lightweight aggregate. Artificial LA is manufactured using local resources such as expanded perlite, and clay ceramisite, whereas natural porous stone is produced using natural processes. Examples of natural aggregate include pumice, light sand, and volcanic cinder. Lightweight aggregates may be categorized into two types according to the size of the particles namely lightweight coarse aggregate and lightweight fine aggregate, often known as sand lightweight. In this research, we have used a scientometric approach to assess the most recent research advancements (1975-2023) to assess their contribution. There is a substantial number of publications (651), as well as a significant number of research papers (421). Furthermore, there are a lot of authors (1791) who are engaged in this field of work. The output of the study is largely influenced by international collaboration nearly 17.18%. Each work obtains, on average 19.2 citations, demonstrating its significant influence in this expanding field. For aspiring researchers who are interested in conducting research in this area, this paper is an invaluable resource.