Inspect completed work to ensure proper installation.
Check the forms that hold the concrete to see that they are properly constructed.
Position construction forms or molds.
Set the forms that hold concrete to the desired pitch and depth, and align them.
Build wooden molds, and clamp molds around area to be repaired, using hand tools.
Finish concrete surfaces.
Spread, level, and smooth concrete, using rake, shovel, hand or power trowel, hand or power screed, and float.
Mold expansion joints and edges, using edging tools, jointers, and straightedge.
Produce rough concrete surface, using broom.
Wet concrete surface, and rub with stone to smooth surface and obtain specified finish.
Apply hardening and sealing compounds to cure surface of concrete, and waterproof or restore surface.
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.
Spread concrete or other aggregate mixtures.
Spread, level, and smooth concrete, using rake, shovel, hand or power trowel, hand or power screed, and float.
Spread roofing paper on surface of foundation, and spread concrete onto roofing paper with trowel to form terrazzo base.
Monitor construction operations.
Monitor how the wind, heat, or cold affect the curing of the concrete throughout the entire process.
Pour materials into or on designated areas.
Signal truck driver to position truck to facilitate pouring concrete, and move chute to direct concrete on forms.
Signal equipment operators to indicate proper equipment positioning.
Signal truck driver to position truck to facilitate pouring concrete, and move chute to direct concrete on forms.
Direct construction or extraction personnel.
Direct the casting of the concrete and supervise laborers who use shovels or special tools to spread it.
Apply sealants or other protective coatings.
Apply hardening and sealing compounds to cure surface of concrete, and waterproof or restore surface.
Waterproof or restore concrete surfaces, using appropriate compounds.
Compact materials to create level bases.
Operate power vibrator to compact concrete.
Install masonry materials.
Wet surface to prepare for bonding, fill holes and cracks with grout or slurry, and smooth, using trowel.
Fabricate concrete beams, columns, and panels.
Apply material to fill gaps in surfaces.
Wet surface to prepare for bonding, fill holes and cracks with grout or slurry, and smooth, using trowel.
Install building fixtures.
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.
Install metal structural components.
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.
Prepare surfaces for finishing.
Wet surface to prepare for bonding, fill holes and cracks with grout or slurry, and smooth, using trowel.
Mix substances or compounds needed for work activities.
Mix cement, sand, and water to produce concrete, grout, or slurry, using hoe, trowel, tamper, scraper, or concrete-mixing machine.
Apply decorative masonry finishes.
Sprinkle colored marble or stone chips, powdered steel, or coloring powder over surface to produce prescribed or slurry, using hoe, trowel, tamper, scraper, or concrete-mixing machine.
Cut metal division strips, and press them into terrazzo base so that top edges form desired design or pattern.
Push roller over surface to embed chips in surface.
Smooth surfaces with abrasive materials or tools.
Chip, scrape, and grind high spots, ridges, and rough projections to finish concrete, using pneumatic chisels, power grinders, or hand tools.
Polish surface, using polishing or surfacing machine.
Break up rock, asphalt, or concrete.
Cut out damaged areas, drill holes for reinforcing rods, and position reinforcing rods to repair concrete, using power saw and drill.
Drill holes in construction materials.
Cut out damaged areas, drill holes for reinforcing rods, and position reinforcing rods to repair concrete, using power saw and drill.
Position structural components.
Cut out damaged areas, drill holes for reinforcing rods, and position reinforcing rods to repair concrete, using power saw and drill.
Fabricate parts or components.
Fabricate concrete beams, columns, and panels.
Clean surfaces in preparation for work activities.
Clean chipped area, using wire brush, and feel and observe surface to determine if it is rough or uneven.
Apply muriatic acid to clean surface, and rinse with water.
Build construction forms or molds.
Build wooden molds, and clamp molds around area to be repaired, using hand tools.
Cut metal components for installation.
Cut metal division strips, and press them into terrazzo base so that top edges form desired design or pattern.
Install roofing materials.
Spread roofing paper on surface of foundation, and spread concrete onto roofing paper with trowel to form terrazzo base.
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