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Safety Bulletin Review
What are the 3 things that must be present to cause a "Hose Whip" during startup?
Before start-up, what is the delivery system full of?
As you begin to pump, you are introducing concrete into the system so the ____________ material now becomes available.
What conditions make a hose whip more likely?
Bony, rocky un-homogenous mix enters the pipes before rest of the concrete
Pipes are dry and not primed
Certain loose components have gotten in front of the rest of the mix by force of gravity
Air is between the loose components and the rest of the mix
All of the above
We should assume the placing crew has received safety training on priming procedures
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