bull float

bull float

bull float
A tool or machine used to smooth unformed surfaces of freshly placed concrete.
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Recommended for smaller slabs and medium-to-low slump concrete, the LBG 800 bull float screed provides deeper vibration and single-step levelling.
A bull float can smooth the surface but it cannot perform the cut-and-fill process; and due to its short length, its use will reduce the floor flatness.
Conventional finishing steps essentially make the floor less flat, especially when using 4- to 5-foot-wide bull floats and power trowels fitted with float or combination blades.
Instead, rent a bull float (shown above; $20 per day).
Most bull float handles are adjustable to allow proper operation on any reasonable width of slab by a person of any height.
Usually the bull float is a flat board 3/4-inch thick, 2 to 3 feet long, and 10 to 12 inches wide.
Smoothing of the surface with a bull float and hand float follows.
If you can't reach the entire slab from the edges with a darby, rent a bull float and handle to use instead.
Use the bull float right after screeding (Photo 12) if there's no bleed water present.
Use the bull float immediately, but wait until the concrete stiffens before using the edger and broom.
a bull float for the first smoothing--be sure to get two or three extension handles;