What is the primary function of mortar in masonry work?

The primary function of mortar in masonry work is to act as a bonding agent. Mortar is a mixture of cement, lime, sand, and water that serves to hold masonry units such as bricks, stones, or blocks together. It fills the gaps between these units and ensures they are securely bonded, providing structural integrity to the wall or masonry element.

When the mortar sets, it hardens and creates a durable bond that allows the masonry units to work together as a single structural entity. This bonding capability is essential for the overall strength and stability of the masonry construction. Additionally, while it may also provide some insulation and act as a filler in gaps, the primary role remains focused on bonding, making it crucial for effective masonry work.