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How to cut the concrete

Let's start immediately by saying that being able to cut the concrete is possible , but from a certain threshold forward (from 15cm onwards) it is advisable to avoid doing it yourself instead to rely on professionals in the sector equipped with appropriate skills and equipment to do so.

For thinner concrete less than 15 cm , on the other hand, an individual with standard strength and goodwill can proceed alone to cutting. The reference to concrete is generally understood here for concrete on walls, terraces, sidewalks and for the insoles of houses.

By following point by point the steps outlined below, rather than relying on chance, you will avoid encountering insurmountable problems and difficulties.

  • First of all, define the area of ​​concrete that must be subjected to cutting using a chalk plasters . The chalk will mark the lines that will show the sections where you will have to cut the cement.
  • If the concrete is not thicker than 10 cm, use a 15-amp circular saw for cuttingwith a diameter of 150/180 mm, equipping it with an abrasive or diamond blade that can bray up to 5 cm deep. The abrasive blade is cheaper, but the diamond blade lasts longer. After setting the cut on 5 cm, begin to cut the concrete and without force, with adequate slowness, continue to cut along the entire white line previously traced with chalk. To avoid excess dust, you can pour water on the blade, but be careful not to pour it on the electric saw. Once the cut is finished, you will have a well defined edge in which to pass a second time to cut the concrete, if within 10 cm of diameter, or to fill it with other fresh cement.
  • If the concrete has a thickness comprised between 10 and 15 cm, instead used for cutting a miter saw electric or petrol . The power cutter is in fact able to penetrate more deeply, cutting up to 15 cm. Usually, these walls are the load-bearing walls.
  • Also in this case, after having defined the area to be cut with a tracer, start to cut with the cutter after setting it on the thickness of the concrete. Proceed at the lowest possible speed, including the blade rotation. In this way you will avoid both the blade from overheating, or splashing pieces of concrete in the air that can damage you or those around you. Performing this operation in two is simpler, because the other person can keep the line identified with chalk clean from dust.

In general, when working with a petrol engine, it is better to use a water pipe at the same time that wet the blade, both for dust and to extend the life of the blade, in this case obviously the two people are indispensable.

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