Career:
Terrazzo Workers and Finisher

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

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What Terrazzo Workers and Finishers do:

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

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What work activities does a Terrazzo Workers and Finisher do?

Importance Activities

Performing General Physical Activities - Performing physical activities that require considerable use of your arms and legs and moving your whole body, such as climbing, lifting, balancing, walking, stooping, and handling of materials.

Handling and Moving Objects - Using hands and arms in handling, installing, positioning, and moving materials, and manipulating things.

Getting Information - Observing, receiving, and otherwise obtaining information from all relevant sources.

Communicating with Supervisors, Peers, or Subordinates - Providing information to supervisors, co-workers, and subordinates by telephone, in written form, e-mail, or in person.

Operating Vehicles, Mechanized Devices, or Equipment - Running, maneuvering, navigating, or driving vehicles or mechanized equipment, such as forklifts, passenger vehicles, aircraft, or water craft.

Controlling Machines and Processes - Using either control mechanisms or direct physical activity to operate machines or processes (not including computers or vehicles).

Inspecting Equipment, Structures, or Material - Inspecting equipment, structures, or materials to identify the cause of errors or other problems or defects.

Organizing, Planning, and Prioritizing Work - Developing specific goals and plans to prioritize, organize, and accomplish your work.

Monitor Processes, Materials, or Surroundings - Monitoring and reviewing information from materials, events, or the environment, to detect or assess problems.

Making Decisions and Solving Problems - Analyzing information and evaluating results to choose the best solution and solve problems.

Identifying Objects, Actions, and Events - Identifying information by categorizing, estimating, recognizing differences or similarities, and detecting changes in circumstances or events.

Evaluating Information to Determine Compliance with Standards - Using relevant information and individual judgment to determine whether events or processes comply with laws, regulations, or standards.

Processing Information - Compiling, coding, categorizing, calculating, tabulating, auditing, or verifying information or data.

Judging the Qualities of Things, Services, or People - Assessing the value, importance, or quality of things or people.

Establishing and Maintaining Interpersonal Relationships - Developing constructive and cooperative working relationships with others, and maintaining them over time.

Scheduling Work and Activities - Scheduling events, programs, and activities, as well as the work of others.

Updating and Using Relevant Knowledge - Keeping up-to-date technically and applying new knowledge to your job.

Communicating with Persons Outside Organization - Communicating with people outside the organization, representing the organization to customers, the public, government, and other external sources. This information can be exchanged in person, in writing, or by telephone or e-mail.

Interpreting the Meaning of Information for Others - Translating or explaining what information means and how it can be used.

Training and Teaching Others - Identifying the educational needs of others, developing formal educational or training programs or classes, and teaching or instructing others.

Coordinating the Work and Activities of Others - Getting members of a group to work together to accomplish tasks.

Coaching and Developing Others - Identifying the developmental needs of others and coaching, mentoring, or otherwise helping others to improve their knowledge or skills.

Estimating the Quantifiable Characteristics of Products, Events, or Information - Estimating sizes, distances, and quantities; or determining time, costs, resources, or materials needed to perform a work activity.

Repairing and Maintaining Mechanical Equipment - Servicing, repairing, adjusting, and testing machines, devices, moving parts, and equipment that operate primarily on the basis of mechanical (not electronic) principles.

Developing Objectives and Strategies - Establishing long-range objectives and specifying the strategies and actions to achieve them.

Thinking Creatively - Developing, designing, or creating new applications, ideas, relationships, systems, or products, including artistic contributions.

Guiding, Directing, and Motivating Subordinates - Providing guidance and direction to subordinates, including setting performance standards and monitoring performance.

Drafting, Laying Out, and Specifying Technical Devices, Parts, and Equipment - Providing documentation, detailed instructions, drawings, or specifications to tell others about how devices, parts, equipment, or structures are to be fabricated, constructed, assembled, modified, maintained, or used.
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