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| Apply hardening and sealing compounds to cure surface of concrete, and waterproof or restore surface. |
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| Apply muriatic acid to clean surface, and rinse with water. |
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| Build wooden molds, and clamp molds around area to be repaired, using hand tools. |
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| Check the forms that hold the concrete to see that they are properly constructed. |
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| Chip, scrape, and grind high spots, ridges, and rough projections to finish concrete, using pneumatic chisels, power grinders, or hand tools. |
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| Clean chipped area, using wire brush, and feel and observe surface to determine if it is rough or uneven. |
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| Cut metal division strips, and press them into terrazzo base so that top edges form desired design or pattern. |
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| Cut out damaged areas, drill holes for reinforcing rods, and position reinforcing rods to repair concrete, using power saw and drill. |
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| Direct the casting of the concrete and supervise laborers who use shovels or special tools to spread it. |
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| Fabricate concrete beams, columns, and panels. |
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| Install anchor bolts, steel plates, door sills and other fixtures in freshly poured concrete or pattern or stamp the surface to provide a decorative finish. |
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| Mix cement, sand, and water to produce concrete, grout, or slurry, using hoe, trowel, tamper, scraper, or concrete-mixing machine. |
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| Mold expansion joints and edges, using edging tools, jointers, and straightedge. |
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| Monitor how the wind, heat, or cold affect the curing of the concrete throughout the entire process. |
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| Operate power vibrator to compact concrete. |
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| Polish surface, using polishing or surfacing machine. |
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| Produce rough concrete surface, using broom. |
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| Push roller over surface to embed chips in surface. |
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| Set the forms that hold concrete to the desired pitch and depth, and align them. |
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| Signal truck driver to position truck to facilitate pouring concrete, and move chute to direct concrete on forms. |
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| Spread roofing paper on surface of foundation, and spread concrete onto roofing paper with trowel to form terrazzo base. |
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| Spread, level, and smooth concrete, using rake, shovel, hand or power trowel, hand or power screed, and float. |
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| Sprinkle colored marble or stone chips, powdered steel, or coloring powder over surface to produce prescribed finish. |
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| Waterproof or restore concrete surfaces, using appropriate compounds. |
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| Wet concrete surface, and rub with stone to smooth surface and obtain specified finish. |
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| Wet surface to prepare for bonding, fill holes and cracks with grout or slurry, and smooth, using trowel. |