Mix, apply, and spread plaster, concrete, mortar, cement, mastic, glue or other adhesives to form a bed for the tiles, using brush, trowel and screed.

“Mix, apply, and spread plaster, concrete, mortar, cement, mastic, glue or other adhesives to form a bed for the tiles, using brush, trowel and screed.” is a core task performed by Tile and Stone Setters. Among the occupation's 25 rated tasks, workers place it 21st by importance (#5 most important). About 94% of workers say it is relevant to their job.

This is a single occupation-specific task statement from O*NET. The figures below describe how central the task is to the job and what independent studies measure about AI and this kind of work — not a prediction that the task will be automated.

Work activities this task rolls up to

O*NET groups concrete tasks into broader work activities shared across many occupations.

• Prepare mixtures or solutions. in Performing General Physical Activities
• Perform general construction or extraction activities. in Performing General Physical Activities
• Apply materials to fill gaps or imperfections. in Handling and Moving Objects

AI exposure

The OpenAI / Eloundou “GPTs are GPTs” study rates this task E0. No direct exposure — current language models give little or no time savings on this task.

Exposure measures whether a model could meaningfully speed the task up — it is an estimate of overlap with model capabilities, not a measure of whether the work will be done by software. The study's intermediate score (β) for this task is 0.00. Automation potential label: T0.

Other tasks in this occupation

• Align and straighten tile using levels, squares, and straightedges. · importance 4.7
• Finish and dress the joints and wipe excess grout from between tiles, using damp sponge. · importance 4.5
• Cut and shape tile to fit around obstacles and into odd spaces and corners, using hand and power cutting tools. · importance 4.5
• Determine and implement the best layout to achieve a desired pattern. · importance 4.4
• Study blueprints and examine surface to be covered to determine amount of material needed. · importance 4.4
• Measure and mark surfaces to be tiled, following blueprints. · importance 4.3
• Lay and set mosaic tiles to create decorative wall, mural, and floor designs. · importance 4.3
• Apply mortar to tile back, position the tile, and press or tap with trowel handle to affix tile to base. · importance 4.3
• Mix and apply mortar or cement to edges and ends of drain tiles to seal halves and joints. · importance 4.2
• Apply a sealer to make grout stain- and water-resistant. · importance 4.2
• Level concrete and allow to dry. · importance 4.1
• Measure and cut metal lath to size for walls and ceilings, using tin snips. · importance 4.1
• Prepare surfaces for tiling by attaching lath or waterproof paper, or by applying a cement mortar coat to a metal screen. · importance 4.0
• Install and anchor fixtures in designated positions, using hand tools. · importance 4.0

See all tasks on the Tile and Stone Setters page.

Sources for this page

Every figure above traces to a named public dataset and the exact release below — not hand-written opinion. See the full methodology for what each measure does and does not mean.

• O*NET 30.3 U.S. Department of Labor / National Center for O*NET Development
• “GPTs are GPTs” (Eloundou et al.) arXiv 2303.10130 OpenAI / academic

Data compiled June 2, 2026. Figures are estimates, not advice.

@misc{singulariki-task-2853,
  title  = {Mix, apply, and spread plaster, concrete, mortar, cement, mastic, glue or other adhesives to form a bed for the tiles, using brush, trowel and screed.},
  author = {{Singulariki}},
  year   = {2026},
  note   = {O*NET 30.3; “GPTs are GPTs” (Eloundou et al.) arXiv 2303.10130. Accessed June 7, 2026},
  url    = {https://singulariki.com/tasks/task-2853}
}