"The cement wasn’t emptying fast enough... We were using a traditional piston vibrator that was unbelievably heavy and so loud that we had to yell or use hand signals to communicate while it was running. As if that wasn’t bad enough, the darn thing actually shook itself apart because it wasn’t fitting into the pocket tightly enough - so all the vibration was reverbing back into the vibrator instead of the railcar. No wonder we weren’t gett

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