So that it may be certain that a concrete specimen’s mechanical properties reach the strength and deflection imperatives for its intended use, concrete specimens with specific dimensions are prepared, ...

In January 2002, the American Concrete Institute (ACI) issued a new standard, ACI355.2-01, which prescribed a comprehensive testing program to ascertain design parameters for post-installed adhesive ...

AMES, Iowa – Grant Schmitz, eyes inches from a 6.5-by-12-foot panel of ultra-high performance concrete, studied the smooth surface for tiny cracks. He and other research engineers carefully marked ...

Consider the following scenarios for a project on which the specified compressive strength (fc’) is 3,500 psi at 28 days. These are all examples of incorrect interpretations of the acceptance criteria ...

When people hear the term “slump,” most think about posture; think of concrete slump as "concrete posture." Pro Tip: While you can certainly perform the slump test procedure by yourself, it will go a ...