# Terrazzo Workers and Finishers > Apply a mixture of cement, sand, pigment, or marble chips to floors, stairways, and cabinet fixtures to fashion durable and decorative surfaces. - Code: 47-2053.00 (O*NET-SOC; SOC 2018 47-2053) - Family: [Construction & Extraction](https://foundation.org.ai/occupations#family-47), one of its 65 occupations - Tasks: 26 tasks (18 core and 8 supplemental) - Page: https://foundation.org.ai/occupations/47-2053.00 - JSON: https://foundation.org.ai/data/tasks/47-2053.00.json ## What the work is made of 1. 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. Core task · Task 9825 · Rated by 62 people who do the job, July 2015 2. Grind surfaces with a power grinder, or polish surfaces with polishing or surfacing machines. Core task · Task 9829 · Rated by 61 people who do the job, July 2015 3. 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. Core task · Task 9823 · Rated by 61 people who do the job, July 2015 4. Blend marble chip mixtures, place into panels, and push a roller over the surface to embed the chips. Core task · Task 9824 · Rated by 61 people who do the job, July 2015 5. Modify mixing, grouting, grinding, or cleaning procedures, according to type of installation or material used. Core task · Task 9831 · Rated by 62 people who do the job, July 2015 6. 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. Core task · Task 9827 · Rated by 61 people who do the job, July 2015 7. Grind curved surfaces or areas inaccessible to surfacing machine, such as stairways or cabinet tops, with portable hand grinder. Core task · Task 9828 · Rated by 62 people who do the job, July 2015 8. Wash polished terrazzo surface, using cleaner and water, and apply sealer and curing agent according to manufacturer's specifications, using brush or sprayer. Core task · Task 9832 · Rated by 61 people who do the job, July 2015 9. Position and secure moisture membrane and wire mesh in preparation for pouring base materials for terrazzo installation. Core task · Task 9830 · Rated by 60 people who do the job, July 2015 10. Fill slight grinding depressions with matching grout material and hand-trowel for a smooth, uniform surface. Core task · Task 9838 · Rated by 59 people who do the job, July 2015 11. Clean installation site, mixing and storage areas, tools, machines, and equipment, and store materials and equipment. Core task · Task 9837 · Rated by 61 people who do the job, July 2015 12. Sprinkle colored marble or stone chips, powdered steel, or coloring powder over surface to produce prescribed finish. Core task · Task 9834 · Rated by 61 people who do the job, July 2015 13. Wet surface to prepare for bonding, fill holes and cracks with grout or slurry, and smooth with a trowel. Core task · Task 9835 · Rated by 60 people who do the job, July 2015 14. Mix cement, sand, and water to produce concrete, grout, or slurry, using hoe, trowel, tamper, scraper, or concrete-mixing machine. Core task · Task 9833 · Rated by 61 people who do the job, July 2015 15. Chip, scrape, or grind high spots, ridges, or rough projections to finish concrete, using pneumatic chisel, hand chisel, or other hand tools. Core task · Task 9839 · Rated by 60 people who do the job, July 2015 16. Mold expansion joints and edges, using edging tools, jointers, or straightedges. Core task · Task 9826 · Rated by 61 people who do the job, July 2015 17. Move terrazzo installation materials, tools, machines, or work devices to work areas, manually or using wheelbarrow. Core task · Task 9841 · Rated by 61 people who do the job, July 2015 18. Clean chipped area, using wire brush, and feel and observe surface to determine if it is rough or uneven. Core task · Task 9840 · Rated by 62 people who do the job, July 2015 19. Repair concrete by cutting out damaged areas, drilling holes for reinforcing rods, and positioning reinforcing rods, using power saw and drill. Supplemental task · Task 9836 · Rated by 61 people who do the job, July 2015 20. Precast terrazzo blocks in wooden forms. Supplemental task · Task 9845 · Rated by 61 people who do the job, July 2015 21. Wet concrete surface and rub with stone to smooth surface and obtain specified finish. Supplemental task · Task 9848 · Rated by 61 people who do the job, July 2015 22. Build wooden molds, clamping molds around areas to be repaired, or setting up frames to the proper depth and alignment. Supplemental task · Task 9842 · Rated by 62 people who do the job, July 2015 23. Spread roofing paper on surface of foundation and spread concrete onto roofing paper with trowel to form terrazzo base. Supplemental task · Task 9846 · Rated by 61 people who do the job, July 2015 24. Produce rough concrete surface, using broom. Supplemental task · Task 9844 · Rated by 60 people who do the job, July 2015 25. Remove frames when the foundation is dry. Supplemental task · Task 9847 · Rated by 61 people who do the job, July 2015 26. Signal truck driver to position truck to facilitate pouring concrete and move chute to direct concrete on forms. Supplemental task · Task 9843 · Rated by 61 people who do the job, July 2015 ## More in Construction & Extraction - [Boilermakers](https://foundation.org.ai/occupations/47-2011.00): 17 tasks - [Brickmasons and Blockmasons](https://foundation.org.ai/occupations/47-2021.00): 14 tasks - [Carpenters](https://foundation.org.ai/occupations/47-2031.00): 29 tasks - [Carpet Installers](https://foundation.org.ai/occupations/47-2041.00): 16 tasks - [Cement Masons and Concrete Finishers](https://foundation.org.ai/occupations/47-2051.00): 26 tasks - [Construction and Building Inspectors](https://foundation.org.ai/occupations/47-4011.00): 19 tasks - [Construction and Related Workers, All Other](https://foundation.org.ai/occupations/47-4099.00): no tasks listed - [Construction Laborers](https://foundation.org.ai/occupations/47-2061.00): 27 tasks - [Continuous Mining Machine Operators](https://foundation.org.ai/occupations/47-5041.00): 15 tasks - [Derrick Operators, Oil and Gas](https://foundation.org.ai/occupations/47-5011.00): 15 tasks - 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