Mason

Mason handles the 25 real tasks here to illustrate core responsibilities and expected outcomes. Each entry points to tools, typical timing and common variations. Each one shows where we found it, and comes with an AI prompt you can copy and use straight away.

25evidenced tasks
25ready prompts
8tools of the trade
47-2051.00O*NET-SOC code
206,170hold this job (US, BLS 2025)
$57,020median pay/yr (US)
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What it pays

Government survey numbers — not estimates, not ads.

Half of all Cement Masons and Concrete Finishers in the U.S. earn more than $57,020 a year — the middle 80% land between $39,190 and $85,480. About 206,170 people in the U.S. do this work. Figures are for the U.S. occupation group “Cement Masons and Concrete Finishers”. (U.S. Bureau of Labor Statistics survey, published 2025.) In India, Craft and related trades workers earn about ₹16,825 a month on average — around ₹2.0 lakh a year (government PLFS survey via ILOSTAT, occupation-family figure).
$57,020typical pay / year
206,170people in this work
$85,480+top 10% earn
₹2.0 lakha year in India (family avg)
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The work, task by task

These are the real jobs-to-be-done, not a wish list. Each task shows where we found it, and the prompt underneath is written for that exact task.

Make6

Screed concrete

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Screed the fresh concrete between the forms along the patio run from the garage to the sidewalk, using the…
Screed the fresh concrete between the forms along the patio run from the garage to the sidewalk, using the straightedge until the surface is even with the screed rails, check levels frequently and remove excess before initial set.
The tools that do the workLogicSphere FirstmixESCOjob descriptionsO*NETWikipedia

Pour concrete into the forms

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Pour concrete into the garage slab forms starting at the far corner, keep a steady flow to avoid cold joints,…
Pour concrete into the garage slab forms starting at the far corner, keep a steady flow to avoid cold joints, hand off to the finisher at the slab edge, monitor slump and top up mix to maintain level as we go.
The tools that do the workShilstone seeMIXESCOjob descriptionsO*NETWikipedia

Mold expansion joints and edges

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Form and strike expansion joints and run neat, rounded edges on the driveway slab every four feet and at all…
Form and strike expansion joints and run neat, rounded edges on the driveway slab every four feet and at all control-joint locations, set joint inserts to depth and compact concrete around them before initial set.
The tools that do the workNational Concrete & Masonry Estimatorjob descriptionsO*NETWikipedia

Apply sealants or waterproofing

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Cut control joints in the new sidewalk within 24 hours using a wet saw set to one-quarter depth at the marked…
Cut control joints in the new sidewalk within 24 hours using a wet saw set to one-quarter depth at the marked layout lines, keep the cut straight, clear slurry, and mark any chips for touch-up.
The tools that do the workHIPERPAVjob descriptionsO*NET

Cut concrete

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Strike and level the slab surface after screeding with a magnesium float and then a straightedge, check with…
Strike and level the slab surface after screeding with a magnesium float and then a straightedge, check with the level at two-meter intervals and remove high spots before final trowel.
The tools that do the workLogicSphere FirstmixESCOO*NET

Level concrete

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Apply a clear waterproofing coat to the cured foundation wall from grade to two feet up, brush into joints…
Apply a clear waterproofing coat to the cured foundation wall from grade to two feet up, brush into joints and seams, allow proper flash time between coats and protect the treated area from rain for 24 hours.
The tools that do the workTradesman's Software Master EstimatorESCOWikipedia
The daily work19

Monitor the effects of weather on curing

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Check the curing slab every two hours while temperature and humidity change, note surface bleed and hairline…
Check the curing slab every two hours while temperature and humidity change, note surface bleed and hairline cracks, record readings and corrective actions, cover or mist as needed, and notify site supervisor if strength gain lags by more than 20% by noon.
The tools that do the workLogicSphere Firstmixjob descriptionsO*NET

Signal truck drivers and move chute

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Stand at the pour edge, give clear hand and radio signals to the ready truck driver to stop or advance, then…
Stand at the pour edge, give clear hand and radio signals to the ready truck driver to stop or advance, then guide and reposition the chute smoothly to avoid cold joints and splash onto the forms.
The tools that do the workTradesman's Software Master Estimatorjob descriptionsO*NET

Grind and polish surfaces

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Grind the surface with progressively finer diamonds until the sheen and flatness meet the mockup, vacuum and…
Grind the surface with progressively finer diamonds until the sheen and flatness meet the mockup, vacuum and wet-polish between grit changes, check for heat spots and hollows by touch, then flag areas needing filler.
The tools that do the workShilstone seeMIXjob descriptionsO*NET

Operate power vibrator to compact concrete.

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Hold the vibrator at one-second intervals along the form face, watch concrete slump and bleeding, avoid…
Hold the vibrator at one-second intervals along the form face, watch concrete slump and bleeding, avoid over-vibrating near reinforcement, stop if laitance rises, and report inconsistent consolidation to the foreman.
The tools that do the workLogicSphere FirstmixO*NET

Clean chipped area, using wire brush, and feel and observe surface to determine if it is rough or uneven.

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Wire-brush the chipped area, remove loose particles, run your hand and straightedge over the patch to judge…
Wire-brush the chipped area, remove loose particles, run your hand and straightedge over the patch to judge roughness and uneven spots, then mark and record whether grinding or thin patching is required.
The tools that do the workACT Contractors FormsO*NET

Cut metal division strips, and press them into terrazzo base so that top edges form desired design or pattern.

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Measure and cut metal division strips to the layout, press each strip into the fresh terrazzo so the top edge…
Measure and cut metal division strips to the layout, press each strip into the fresh terrazzo so the top edge follows the pattern, tap level with a rubber mallet, and walk the line to confirm alignment before setting.
The tools that do the workNational Concrete & Masonry EstimatorO*NET

Push roller over surface to embed chips in surface.

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Push the heavy roller over the newly laid terrazzo surface in overlapping passes until chips sit evenly…
Push the heavy roller over the newly laid terrazzo surface in overlapping passes until chips sit evenly embedded and no high spots show, check depth with a straightedge, stop and re-roll any loose areas before curing begins.
The tools that do the workADAPT-ModelerO*NET

Apply muriatic acid to clean surface, and rinse with water.

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Don full-face respirator, acid-resistant gloves and splash suit, apply muriatic acid evenly across the slab…
Don full-face respirator, acid-resistant gloves and splash suit, apply muriatic acid evenly across the slab with a stiff broom, neutralise and rinse thoroughly with fresh water until runoff is clear, then inspect for residue and repeat only where staining remains.
The tools that do the workHard Dollar HD Project EstimatingO*NET

Spread roofing paper on surface of foundation, and spread concrete onto roofing paper with trowel to form terrazzo base.

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Lay roofing paper smooth across the foundation, lap seams and tape, then comb a scratch coat of fresh…
Lay roofing paper smooth across the foundation, lap seams and tape, then comb a scratch coat of fresh terrazzo mix onto the paper with a trowel to a uniform bed, screed to grade and float to remove trowel marks before initial set.
The tools that do the workLogicSphere FirstmixO*NET

Read blueprints or drawings to calculate materials

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Study the blueprint elevations and plan view, take on-site measurements, tabulate block, mortar and rebar…
Study the blueprint elevations and plan view, take on-site measurements, tabulate block, mortar and rebar counts per wall and slab, then produce a materials list with waste allowance and mark up for ordering.
The tools that do the workNational Concrete & Masonry Estimatorjob descriptions

Lay out patterns, forms, or foundations

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Stake reference lines, set form edges to the layout dimensions, measure diagonals and adjust until corner…
Stake reference lines, set form edges to the layout dimensions, measure diagonals and adjust until corner squareness is within tolerance, then install bracing and recheck before pouring.
The tools that do the workTradesman's Software Master Estimatorjob descriptions

Align structures using levels and plumbs

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Align each course as you lay block or stone, plumb and level each unit, shim or shave until vertical and…
Align each course as you lay block or stone, plumb and level each unit, shim or shave until vertical and planar within tolerance, step back to sight long runs and correct cumulative deviation before the mortar sets.
The tools that do the workADAPT-Modelerjob descriptions

Lay out and install rain screen water systems

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Layout the rain screen cavity and flashing runs on the east wall, mark stud locations and weep holes, install…
Layout the rain screen cavity and flashing runs on the east wall, mark stud locations and weep holes, install the drainage mat, attach the through-wall flashing, and fasten the ventilated rainscreen battens so water drains to the flashings by Friday morning.
The tools that do the workADAPT-Modelerjob descriptions

Install reinforcing rebar or mesh wire

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Mark and cut rebar lengths for the footing and stemwall, set and tie the vertical and horizontal bars to the…
Mark and cut rebar lengths for the footing and stemwall, set and tie the vertical and horizontal bars to the layout marks, check cover with the gauges, and inspect all ties and chairs before concrete placement this afternoon.
The tools that do the workNational Concrete & Masonry Estimatorjob descriptions

Create broom finishes to prevent slipping

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After floating the slab, run the broom with consistent strokes across the walkway to create a fine, non-slip…
After floating the slab, run the broom with consistent strokes across the walkway to create a fine, non-slip texture, keep edge profiles straight with the screed, and flag any low spots for quick patching before cure begins.
The tools that do the workHard Dollar HD Project EstimatingWikipedia

Apply stamp finishes for aesthetic purposes

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Position the pattern rollers and stamps on the green concrete, press and lift in sequence to match the…
Position the pattern rollers and stamps on the green concrete, press and lift in sequence to match the mock-up, back-brush joints for definition, and apply the designated release and color hardener according to the sample approval today.
The tools that do the workLogicSphere FirstmixWikipedia

Put up any removable forms

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Set the removable form panels plumb and level on the column runs, secure with ties and wedges, check…
Set the removable form panels plumb and level on the column runs, secure with ties and wedges, check alignment with laser and string, and brace both faces so panels can be stripped without disturbing adjacent work after 48 hours.
The tools that do the workTradesman's Software Master EstimatorESCO

Chamfer concrete

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Form the chamfer profiles on all exposed concrete edges with the hand guards, maintain consistent radius with…
Form the chamfer profiles on all exposed concrete edges with the hand guards, maintain consistent radius with the gauge, tool the joint edges after initial set, and log locations so the finishing crew follows the same detail tomorrow morning.
The tools that do the workShilstone seeMIXESCO

Contractors forms

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Record the new poured foundation job on contractors forms for 42 Pine Street: list materials, crew hours,…
Record the new poured foundation job on contractors forms for 42 Pine Street: list materials, crew hours, subcontracts, change orders, and attach the site photos so the project manager can approve by Friday.
The tools that do the workHard Dollar HD Project EstimatingO*NET

Says who?

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Activities this job lives in

The human activities behind the tasks — each with its honest AI ceiling.

The logs, files & records this job keeps

Shared with other careers — the same record means something different in each.

Related careers

Same family of work — each with its own tasks and prompts.

The LLOS Work Atlas is the world's largest evidenced task library — a map of human work, with a ready prompt behind every task. 1,774 careers · every task named by the sources that witnessed it — O*NET, ESCO, real job descriptions, Wikipedia — and the deepest tasks by several at once. And it is honest about limits: where AI cannot help, the map says so.

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Built on public evidence: O*NET®, ESCO, Wikipedia, U.S. Bureau of Labor Statistics, ILOSTAT. All sources & licenses