Final answer:
Grout is the material used for filling joints in ceramic tilework and comes in cementitious or resinous forms. It should not be confused with thin-set mortar, adhesive, or thick-set mortar, which serve different purposes in tilework.
Step-by-step explanation:
The substance used for filling joints in ceramic tilework that can be either cementitious or resinous is known as grout. This material is essential for providing a finished look, as well as protecting the edges of the tiles and maintaining the overall integrity of the installation.
Cementitious grout is composed of a careful mix of water, cement, and sometimes sand, which fills the spaces between tiles and hardens to create a solid, durable bond. Resinous grout, on the other hand, may include epoxy or other polymer compounds that offer enhanced resistance to moisture and chemicals, making them suitable for specific applications such as industrial environments or areas subject to heavy water exposure.
It's important not to confuse grout with thin-set mortar, adhesive, or thick-set mortar, all of which serve different purposes in tilework. Thin-set mortar and thick-set mortar are used to attach tiles to their substrate, while adhesive can refer to a variety of glues used for bonding materials in construction.