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Concrete and Nuclear Density Testing

The Ohio Department of Transportation goes through a yearly testing refresher for all construction inspectors. This video reviews the two concrete tests and the nuclear density gauge. Concrete slump testing is used to ensure the concrete is at the proper workability, some projects need thicker concrete, while others need it to be looser. Concrete air testing is important in colder climates as air needs to be added to concrete to allow for water to expand and contract during the winter's freeze/thaw cycle. The nuclear density gauge measures the compaction of materials with gamma rays and neutrons. #Concrete #Science #Construction 0:00 Introduction 0:28 Concrete Slump Testing 2:01 Concrete Air Testing 2:50 Soil Compaction Testing