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Screeding Concrete – The Process Behind It

2015-7-20 15:50:50

Screeding Concrete is done right after the concrete has been poured, rough raked, and edges have been hand floated. The sooner the better, if you leave the concrete too long it will be too hard to work with.

The goal of screeding is to make the surface flat and not leave any holes, humps or bumps. This is accomplished by creating guides to follow while you are screeding, guides can be forms, rails, hand floated edges or wet screeds pulled at the proper height. Each screeding tool follows your guides differently to achieve the flat surface. For the average DIYer it is definitely recommended that you screed an area that you can ride the forms and is smaller than your screed.

When screeding follow your guides and always keep 1/2″ to 1″ of concrete ahead of your screed board to fill all holes and low spots. If you are screeding and leaving lots of voids behind, it is likely you are either not leaving enough mud or you are screeding too fast. If you are screeding and able to ride the forms start at one end and move along in a sawing motion to seal the surface.

Once you have completed striking off any humps or bumps, filling any major holes (minor holes will be filled in with the bull float), ensuring all heights and slopes are correct it is time to bull float the surface.

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