Simple past tense and past participle of ballast.(verb)
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Use "ballasted" in a sentence
"Senior Project Developer Andrew Reed says brownfields have caught on for solar projects in part because of a new installation technique known as ballasted racking."
"Also, crash testing with ballasted dummies to represent obese and morbidly obese occupants may lead to refined safety systems for this growing segment of the population."
"The planer boards are tapered or ballasted to run at the surface."