Cement Mason / Concrete Finisher

Smooth and finish surfaces of poured concrete, such as floors, walks, sidewalks, roads, or curbs using a variety of hand and power tools. Align forms for sidewalks, curbs, or gutters; patch voids; and use saws to cut expansion joints.

O*NET reports this occupation under titles such as: Cement Finisher; Cement Mason; Concrete Finisher; Concrete Mason; Finisher; Mason

Tasks

• Check the forms that hold the concrete to see that they are properly constructed.
• Set the forms that hold concrete to the desired pitch and depth, and align them.
• Spread, level, and smooth concrete, using rake, shovel, hand or power trowel, hand or power screed, and float.
• Monitor how the wind, heat, or cold affect the curing of the concrete throughout the entire process.
• Mold expansion joints and edges, using edging tools, jointers, and straightedge.
• Signal truck driver to position truck to facilitate pouring concrete, and move chute to direct concrete on forms.
• Direct the casting of the concrete and supervise laborers who use shovels or special tools to spread it.
• Produce rough concrete surface, using broom.
• Apply hardening and sealing compounds to cure surface of concrete, and waterproof or restore surface.
• Operate power vibrator to compact concrete.
• 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.
• Wet surface to prepare for bonding, fill holes and cracks with grout or slurry, and smooth, using trowel.
• Waterproof or restore concrete surfaces, using appropriate compounds.
• Mix cement, sand, and water to produce concrete, grout, or slurry, using hoe, trowel, tamper, scraper, or concrete-mixing machine.
• Chip, scrape, and grind high spots, ridges, and rough projections to finish concrete, using pneumatic chisels, power grinders, or hand tools.

Knowledge

• English Language
• Building and Construction
• Mathematics
• Public Safety and Security

Skills

• Monitoring
• Speaking
• Active Listening
• Critical Thinking

Abilities

• Manual Dexterity
• Trunk Strength
• Multilimb Coordination
• Near Vision
• Arm-Hand Steadiness
• Control Precision
• Extent Flexibility
• Problem Sensitivity
• Deductive Reasoning
• Information Ordering
• Visualization
• Dynamic Strength
• Stamina
• Oral Comprehension
• Oral Expression
• Category Flexibility
• Selective Attention
• Finger Dexterity
• Static Strength
• Far Vision
• Speech Recognition
• Inductive Reasoning
• Rate Control
• Reaction Time
• Gross Body Coordination
• Depth Perception
• Speech Clarity