What is the term for the sand added to a cement mixture?

The term for the sand added to a cement mixture is "Fine Aggregate." Fine aggregate includes materials that are smaller in size, typically passing through a sieve with a specific mesh size, usually 4.75 mm or smaller. Sand, being the most common type of fine aggregate, plays a crucial role in concrete mixtures by filling the voids between larger particles and helping to improve the workability of the concrete. It also contributes to the strength and durability of the concrete once it hardens.

Coarse aggregate, in contrast, refers to larger particles such as gravel or crushed stone, which provide the bulk and structural integrity to the concrete. Granular material is a broader term that encompasses both fine and coarse aggregates, without specifically indicating the intended use in a cement mixture. A binding agent typically refers to substances like cement or adhesives that hold the materials together rather than being a component like sand in the mixture itself. Such distinctions clarify why fine aggregate is the correct term to describe the sand used in cement mixtures.