What is a built-up unit of construction made from materials such as brick or clay tiles set in mortar called?

The correct term for a built-up unit of construction that utilizes materials like brick or clay tiles set in mortar is masonry. Masonry involves the individual laying of these materials to create walls, structures, and various architectural elements. This method not only provides structural integrity but also contributes to the aesthetic appeal of buildings.

Masonry construction is known for its durability, strength, and resistance to various environmental factors, making it a favored choice in building practices. The use of mortar in the assembly of these units binds them together, enhancing the overall stability of the structure.

In contrast, the other terms refer to different construction methods or materials. Concrete is a composite material made from cement, aggregate, water, and sometimes additions, and is used in various forms rather than as individual units like masonry. Frame construction typically involves the use of wood or metal structures to create the skeleton of a building, while aggregate refers to materials like sand, gravel, or crushed stone used in concrete and masonry, but does not represent a built-up unit of construction itself.