Serviceability limit states involve disruption of the functional use of the structure, whereas strength limit states involve structural collapse.

The fatigue threshold (also known as the endurance limit) is the stress level in a material below which fatigue failures will normally not occur.

At high loading rates, the strength of concrete decreases.

The term “concrete strength” refers to the uniaxial _______ strength.

The long term strength of concrete that is hot cured will be _______ concrete that is cold cured.

Load combinations are presented in companion action format.

Given that dead load = 50 psf, live load = 25 psf, roof live load = 25 psf, snow load = 30 psf, and wind load = 45 psf, determine the largest factored load.

The 7- and 28-day strengths are reduced by cold temperatures, although the long-term strength tends to be enhanced.

Which of the following does not affect compressive strength?

A group of 25 tests on a given type of concrete had a mean strength of 4,000 psi and a standard deviation of 400 psi. Does this concrete satisfy the strength requirement for 4,000 psi concrete?