This helps form a consistent border for the broom part of the concrete slab finish.
Broom finish concrete slab.
Materials alone cost about 4 per cubic foot.
The broom finish of the concrete is rough textured finished obtained by dragging a broom on the trowelled surface of the concrete while the concrete is still fresh.
If you want a non slip surface on your concrete then a broom finish is what you re looking for.
In many cases today s finishers won t trowel.
Dragging a house broom or a garage broom across the troweled concrete after it dries a little produces light texture lines.
Dragging of broom on the fresh concrete surfaces creates small ridges that provide for traction control and slip resistant.
Use the edging trowel to round off the edges of the concrete slab and make a flat margin.
As with the trowel and float you can make creative patterns with the broom if you like.
Some of the aggregate would be exposed giving you a nice smooth decorative look to your sidewalk and patio.
Pour the slab strike off with a screed bull float wait for the bleed water to evaporate although with low water cement ratio exterior concrete with the proper amount of.
Give the cement adequate time to dry off before allowing people to walk on the concrete slab.
That s about 5 400 or between 3 600 and 7 200 for a typical 30 by 30 foot slab that s 6 inches deep.
There are two things you can do fix the rough finish.
As with all the other finishing steps the key to a successful broom finish is to wait until the concrete surface is just right.
If concrete starts to pile up in front of the bristles as you drag the broom across resmooth the broomed area with a float or trowel and then wait a little longer before trying again.
Drag a stiff bristled broom one made from horsehair or nylon slowly across the surface.
However do not undo your work by allowing people to use it immediately.
For a deeper texture forgo the trowel and drag your broom across the concrete while it s still wet but after you complete the floating.
In my opinion learning how to do a broom finish is a little easier than doing a smooth steel trowel finish.
One is you could grind or polish the surface which would remove the rough broom finish and smooth the surface of the concrete.
Trowel there s some disagreement here.
In this video we will show you how we broom finish concrete slabs.
Ensure each stroke is consistent traveling in the same direction and creating tiny ridges in the surface.
Concrete slabs typically cost about 6 per square foot or between 4 and 8 per square foot including labor.