Lightweight concrete is a type of concrete that has a lower density than traditional concrete. It is made by incorporating lightweight aggregates, such as expanded clay, shale, or pumice, which reduce the overall weight while maintaining strength. This makes it ideal for applications where reducing the load on structures is important, such as in high-rise buildings or bridges. In addition to its reduced weight, lightweight concrete also offers improved insulation properties. This can lead to better energy efficiency in buildings, as it helps to regulate temperature. Its versatility allows it to be used in various construction projects, including precast elements and floor systems.