1The masons carefully applied the mortar between the stones to ensure a strong and durable structure.
2In a mortar and pestle, the pharmacist ground the herbs into a fine powder.
3The ancient Romans developed a sophisticated system of mortar and concrete that allowed them to build structures that have lasted for centuries.
4Before applying the mortar, the surface of the wall must be clean and free of debris.
5The recipe for traditional mortar includes a specific ratio of lime to sand, which must be mixed with water to achieve the right consistency.