Brad Shotwell

Brad Shotwell's Posts

Alteration of Samples

Samples extracted from a concrete structure for laboratory study are typically being examined to determine what occurred while the concrete was in service. But sample removal can upset the “equilibrium” of the concrete before it arrives at the laboratory. Read more

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How Poor Curing Leads to Scaling

Scaling of concrete driveways and sidewalks occurs all too often during the first season’s exposure to cyclic freezing and thawing. Read more

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