Explanation:

- Gauged mortar is the type of mortar that is formed by mixing cement and lime in definite proportions as the binding material.
- This type of mortar is commonly used in construction for its various properties and advantages.

Properties of Gauged Mortar:

1. Strength: Gauged mortar provides good strength and durability to the masonry structure. The combination of cement and lime enhances the compressive strength of the mortar, making it suitable for load-bearing walls and structures.

2. Workability: Gauged mortar has excellent workability, which means it can be easily applied and spread on the masonry units. It allows for a smooth and consistent application without excessive shrinkage or cracking.

3. Bonding: The use of cement and lime in gauged mortar improves the bonding properties of the mortar. It creates a strong adhesion between the masonry units, resulting in a sturdy and stable structure.

4. Flexibility: Gauged mortar has good flexibility, which helps to accommodate the slight movements and settlements of the masonry units. It reduces the risk of cracks and ensures the long-term integrity of the structure.

5. Water Resistance: The presence of cement in gauged mortar provides water resistance to some extent. It helps to prevent water infiltration and protects the masonry from moisture-related damages.

6. Fire Resistance: Gauged mortar has a high resistance to fire. The combination of cement and lime creates a mortar that can withstand high temperatures without significant structural damage.

7. Lightweight: Gauged mortar is relatively lightweight compared to other types of mortar. This makes it easier to handle and apply, reducing the labor and effort required during construction.

In conclusion, gauged mortar is a versatile and widely-used type of mortar in construction. Its unique combination of cement and lime provides excellent strength, workability, bonding, water resistance, fire resistance, and lightweight properties.