What concrete do you use magnesium bull floats on?

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Prepare for the ACI Concrete Finisher Test. Practice with multiple choice questions and gain insights with explanations. Ensure your success with targeted studying and exam strategies!

Multiple Choice

What concrete do you use magnesium bull floats on?

Explanation:
Magnesium bull floats are softer, so they’re gentler on the surface of fresh concrete. They work best on mixes that are light in weight or contain air-entraining agents, where you need to smooth the surface without crushing the tiny air voids or gouging the cream. Using a magnesium float on those delicate mixes helps produce a smooth, even surface without damaging the air-void structure, which is why that option is the best fit. Heavier, denser concretes typically require a harder float, and slump level or color don’t determine the tool in this case.

Magnesium bull floats are softer, so they’re gentler on the surface of fresh concrete. They work best on mixes that are light in weight or contain air-entraining agents, where you need to smooth the surface without crushing the tiny air voids or gouging the cream. Using a magnesium float on those delicate mixes helps produce a smooth, even surface without damaging the air-void structure, which is why that option is the best fit. Heavier, denser concretes typically require a harder float, and slump level or color don’t determine the tool in this case.

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