Power floating your concrete floor

Power floating your concrete floor

POWER FLOAT YOUR CONCRETE FLOOR FOR A PROFESSIONAL FINISH

After pouring your slab you can smooth and flatten the surface of your concrete floor to a superior finish with a power trowel, also known as a power float. For smaller projects, a walk-behind power trowel like the CT36 or CT48 will do, while larger commercial projects will require a ride-on power trowel like the CRT36 or CRT48.

 

ADVANTAGES OF A POWER FLOAT FINISH

Why use a power trowel? When using a power float you produce a much flatter and more level surface, it also helps to fix those little imperfections and enhances the density of the surface. A concrete power float is considerably faster than using hand trowels. In most cases, with a good concrete power float finish, you won’t need to add finishing screed.

  

USING A POWER TROWEL AT THE CORRECT TIME

A power trowel or power float will flatten and finish your floor but it must be used before your concrete slab has completely dried. Timing is key to getting a good finished floor. Beware as power floating concrete while it is too fresh and wet can produce delamination. Don't worry though, there is a trick for you to check if your slab is ready to finish with your power trowel: Step on the concrete, if your footprint is 5mm deep or less, with no bleed water or an insignificant amount, it's time power float. However, if your footprint produces too much water and/or is more than 6mm deep, you will have to wait a bit longer, be careful not to wait until it is completely dried!

 

FLOAT PANS AND FINISHING BLADES FOR YOUR POWER TROWEL

A power floats are used with a float pan and finishing blades to perfect your concrete slabs. This is how you work with concrete power float finish with two attachments: first, attach the float pan to the power float. Once the concrete has been poured, pull the machine in front of you gradually from one side of the slab to the other, over to the side slightly and then again in a new row. Normally you will be walking backwards when pulling the machine, so it flattens your footprints while you work. Following a line-by-line pattern will help you to cover the whole surface.
Repeat the same action put from a perpendicular perspective, go width wise if you first went lengthwise, following again the same pattern. Each consecutive pass makes the material denser and compact, and the surface smooth and nice.

 

ATTACH THE FINISHING BLADE TO THE POWER TROWEL

When the two perpendicular passes with the float pan have been completed, you can get ready for the last step in power floating your concrete, starting with attaching the finishing blade. Repeat those two or even more perpendicular passes in the same way, starting at a 90-degree angle to the last pass that you made with the float pan. In this first pass use a flat finishing blade or a very slight pitch. During the successive passes, gradually increase the blade pitch to add more pressure to the concrete surface. A standard blade angle goes from 5 to 10 degrees, but if you perform more passes, these angles can be increased if needed.

 

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