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Bull Floats

Length - 02:46

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Bull floats serve several specific functions when finishing a concrete slab, including consolidating the slab by pushing aggregates into the center of the concrete and bringing paste to the surface. More importantly, bull floats level the surface of the concrete by cutting the high points in the concrete and filling the lows. Bull floats are typically made of wood or magnesium (referred to as a 'mag float'). According to the American Concrete Institute (ACI) flatwork finisher guidelines, magnesium floats should be used when an air entraining admixture is present in the concrete mix. Because air entraining admixtures tend to bleed less than a standard concrete mix, magnesium floats leave the seal intact, or close the concrete surface.

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