Which of the following factors should be considered when mixing mortar?

When mixing mortar, several critical factors contribute to its overall performance and suitability for the intended application. Proper consistency is essential because it affects the workability and bond strength of the mortar. A mix that is too dry may not adhere well, while a mix that is too wet can weaken the structure and lead to drainage issues.

Using specified materials is also crucial, as different types of mortar require specific components to achieve desired characteristics such as strength, flexibility, and resistance to environmental factors. Adhering to the specifications ensures that the mortar will perform as expected for particular masonry tasks.

The use of clean water cannot be overstated, as impurities in water can adversely affect the hydration process of the cement and can lead to degraded performance in the finished product. Clean water ensures that the chemical reactions necessary for forming strong bonds can occur without hindrance.

Considering all these aspects—consistency, specified materials, and clean water—ensures that the mortar will provide optimal strength, durability, and functionality in masonry applications. Therefore, all of these factors are integral to successful mortar mixing.