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