Building sand has a fine and consistent particle size, which makes it highly workable. This characteristic is particularly important when mixing it with cement to create mortar for masonry work. The fine texture allows for easy spreading, shaping, and smoothing of mortar.

The fine particles in building sand contribute to strong adhesion between masonry units (such as bricks, blocks, or stones) and the mortar. This adhesion is crucial for creating solid, durable, and stable structures.

When building sand is mixed with cement to create mortar, it enhances the compressive strength of the resulting material. This strength is essential for load-bearing structures and ensuring the longevity of the construction.