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Unit: Concrete grinding

LMFFL2107A: Select, operate and maintain grinding equipment

Section 1: Principles of grinding

Overview


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Audio for slide 1 (mp3 |6|KB)
In this section, we'll look at the range of 'surface prep' machines used to remove the top layer of concrete from a slab.

We'll talk about their pros and cons and the finish they produce.

Then we'll focus on grinding machines and examine the different types available and the tooling they use.

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Audio for slide 2 (mp3 |6|KB)
The main purpose of concrete grinding is to remove ridges, contaminants and loose material from the subfloor surface.

By removing ridges and imperfections through grinding, you can often reduce the overall cost of preparing the surface for a floor covering.

If you're able to achieve a surface finish smooth enough to allow carpet or vinyl to be laid straight on top, you'll not only avoid the expense of a cement-based skim coat, you'll also save yourself the waiting time for the skim coat to dry.

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Completing this section

Audio 3 (mp3 |6|KB)

The assignment for this section is designed to test your knowledge of basic concrete grinding principles.

Have a look at the Assignment now to see what you'll need to do to complete it. You'll find the link in the menu bar.

Also in the menu bar are links to the lessons for this section:

  • Machines used to prepare concrete

  • Concrete surface profiles

  • Types of grinders

  • Diamond tooling.

These lessons will provide you with background information that will help you with the assignment.

The Just for fun exercise will show a range of tooling options and ask you to match the images to their correct names.

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