terrazzo

Terrazzo is a composite material used for floors, walls, and countertops. It combines a binder, either cementitious or epoxy, with aggregates such as marble, quartz, granite, glass, or mirrors. In traditional cementitious terrazzo, marble chips are embedded in a cement matrix, cured, and then ground and polished to reveal the aggregate. Epoxy terrazzo uses an epoxy binder, which permits thinner sections and often faster curing.

The term terrazzo derives from Italian terrazza, meaning terrace, reflecting its historical use in Italian buildings. The modern form emerged in the late 19th and early 20th centuries and became widespread in public and commercial interiors in the mid-20th century.

Types and installation: Terrazzo can be poured in place, laid as pre-cast slabs, or produced as tiles. After placement, the surface is ground and polished to a smooth, uniform finish. Finishes range from polished to matte, with sealers to protect against moisture and staining.

Advantages: Terrazzo is durable, easy to maintain, and highly versatile in color and pattern. Its seamless surface resists heavy traffic and can incorporate recycled aggregates for sustainability.

Disadvantages: Upfront costs are high, and skilled installation is required. Repairs can be difficult, and substrate movement may cause cracking, especially in cementitious terrazzo.

Applications: Used for floors and walls in airports, hospitals, schools, and other public buildings; terrazzo is also used for countertops and interior panels.

Maintenance and sustainability: Regular cleaning and periodic resealing extend life. Cementitious terrazzo may require careful moisture management before sealing. The long lifespan and potential use of recycled aggregates contribute to sustainability.