Mortar is a mixture of sand, water, and a binding agent, typically cement or lime, used in construction to bond bricks, stones, and other masonry units. It provides structural integrity and helps to fill gaps between these materials, ensuring stability and durability in buildings. In addition to its primary function as a binding agent, mortar can also enhance the aesthetic appeal of masonry work. Different types of mortar, such as masonry mortar and pointing mortar, are used for various applications, allowing builders to choose the right mix for their specific needs.