Terrazzo Workers and Finishers - 47-2053.00

O*NET-SOC Description

Apply a mixture of cement, sand, pigment, or marble chips to floors, stairways, and cabinet fixtures to fashion durable and decorative surfaces.

DOT Titles Included in this O*NET-SOC Code

  • Terrazzo Finisher
  • Terrazzo Worker
  • Terrazzo-Worker Apprentice

Sample of Occupations in this SOC Family

Related Occupations

Tasks

  • Blend marble chip mixtures, place into panels, and push a roller over the surface to embed the chips.
  • Build wooden molds, clamping molds around areas to be repaired, and setting up frames to the proper depth and alignment.
  • Chip, scrape, and grind high spots, ridges, and rough projections to finish concrete, using pneumatic chisel, hand chisel, or other hand tools.
  • Clean chipped area, using wire brush, and feel and observe surface to determine if it is rough or uneven.
  • Clean installation site, mixing and storage areas, tools, machines, and equipment, and store materials and equipment.
  • Cut metal division strips and press them into the terrazzo base for joints or changes of color to form designs or patterns or to help prevent cracks.
  • Fill slight grinding depressions with matching grout material and hand-trowel for a smooth, uniform surface.
  • Grind curved surfaces and areas inaccessible to surfacing machine, such as stairways and cabinet tops, with portable hand grinder.
  • Grind surfaces with a power grinder or polish surfaces with polishing or surfacing machines.
  • Measure designated amounts of ingredients for terrazzo or grout according to standard formulas and specifications, using graduated containers and scale, and load ingredients into portable mixer.
  • Mix cement, sand, and water to produce concrete, grout, or slurry, using hoe, trowel, tamper, scraper, or concrete-mixing machine.
  • Modify mixing, grouting, grinding, and cleaning procedures according to type of installation or material used.
  • Mold expansion joints and edges, using edging tools, jointers, and straightedges.
  • Move terrazzo installation materials, tools, machines, and work devices to work areas, manually or using wheelbarrow.
  • Position and secure moisture membrane and wire mesh in preparation for pouring base materials for terrazzo installation.
  • Precast terrazzo blocks in wooden forms.
  • Produce rough concrete surface, using broom.
  • Remove frames once the foundation is dry.
  • Repair concrete by cutting out damaged areas, drilling holes for reinforcing rods, and positioning reinforcing rods, using power saw and drill.
  • Signal truck driver to position truck to facilitate pouring concrete, and move chute to direct concrete on forms.
  • Spread roofing paper on surface of foundation and spread concrete onto roofing paper with trowel to form terrazzo base.
  • Spread, level, and smooth concrete and terrazzo mixtures to form bases and finished surfaces, using rakes, shovels, hand or power trowels, hand or power screeds, and floats.
  • Sprinkle colored marble or stone chips, powdered steel, or coloring powder over surface to produce prescribed finish.
  • Wash polished terrazzo surface, using cleaner and water, and apply sealer and curing agent according to manufacturer's specifications, using brush or sprayer.
  • Wet concrete surface and rub with stone to smooth surface and obtain specified finish.
  • Wet surface to prepare for bonding, fill holes and cracks with grout or slurry, and smooth with a trowel.

Detailed Work Activities

  • adhere to safety procedures
  • apply adhesives, caulking, sealants, or coatings
  • apply cleaning solvents
  • apply grouting or other masonry adhesives
  • build or repair masonry structures, including kilns or furnaces
  • build or repair structures in construction, repair, or manufacturing setting
  • clean equipment or machinery
  • clean rooms or work areas
  • climb ladders, scaffolding, or utility or telephone poles
  • construct molds
  • create decorative textures in finish coat
  • cut or shape stone, tile, brick, or related material
  • erect scaffold
  • fabricate, assemble, or disassemble manufactured products by hand
  • finish concrete surfaces
  • install prefabricated building components
  • lay or install brick, block, stone, tile, or related masonry material
  • measure tile or masonry materials
  • mix mortar, grout, slurry, concrete, or related masonry material
  • mix paint, ingredients, or chemicals, according to specifications
  • move materials or goods between work areas
  • move or fit heavy objects
  • operate power construction equipment
  • perform safety inspections in construction or resource extraction setting
  • prepare site or surfaces for concrete or masonry work
  • read blueprints
  • read tape measure
  • read technical drawings
  • repair cracks, defects, or damage in installed building materials
  • repair or replace damaged bricks, tile, or related masonry
  • select masonry material to be installed according to specifications
  • understand construction specifications
  • use basic carpentry techniques
  • use concrete fabrication techniques
  • use hand or power tools
  • use measuring devices in construction or extraction work
  • use surfacing machine to polish terrazzo or concrete