What materials are used to make mortar?

The correct response is based on the standard composition of mortar used in construction. Mortar is primarily a mixture that provides the adhesive properties necessary for binding building materials together, particularly in masonry construction.

The inclusion of Portland cement is essential because it serves as the primary binding agent, offering strength and durability to the mortar. Sand acts as an aggregate, providing bulk, stability, and workability to the mixture. Lime is often added to enhance the flexibility and adhesion qualities of the mortar, allowing it to accommodate slight movements and expansion in the masonry structure. Water is crucial as it activates the cement and hydrates the lime, allowing the mixture to cure and set properly.

This combination demonstrates a balanced blend of materials that ensures the mortar can perform its intended function effectively, making this answer the most accurate regarding the composition of mortar.