What does "trowel" refer to in bricklaying?

In bricklaying, a "trowel" specifically refers to a hand tool that is crucial for several tasks, including spreading, shaping, and applying mortar. This tool features a flat, pointed blade that allows the bricklayer to easily pick up and manipulate mortar. When laying bricks, the trowel helps in ensuring the proper amount of mortar is applied between each brick, enabling strong adhesion and structural integrity. Additionally, the shape of the trowel allows for precise control when smoothing and finishing the joint lines between bricks.

Other options do not accurately reflect the use or definition of a trowel in bricklaying. While measuring temperatures, mixing mortar, and protective equipment are essential components of the bricklaying trade, they pertain to different stages or aspects of the work, rather than the specific tool referred to as a trowel.