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Which two tests are generally used to test the tensile strength of concrete?

Given that dead load = 40 psf, live load = 75 psf, roof live load = 30 psf, snow load = 50 psf, and wind load = 15 psf, determine the largest factored load.

Given that dead load = 20 psf, live load = 95 psf, roof live load = 20 psf, snow load = 50 psf, and wind load = 30 psf, determine the largest factored load.

At very slow loading rates, the strength of concrete increases.

Plain (non-reinforced) concrete has an assumed unit weight of _______.

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

Flat-plate floors are widely used in apartments because the underside of the slab is flat and can therefore be used as the ceiling of the room below.

Given that dead load = 50 psf, live load = 60 psf, roof live load = 25 psf, snow load = 45 psf, and wind load = 20 psf, determine the largest factored load.

A higher water/cement ratio reduces the porosity of the hardened concrete and thus increases the number of interlocking solids.

Given that dead load = 45 psf, live load = 90 psf, roof live load = 45 psf, snow load = 35 psf, and wind load = 25 psf, determine the largest factored load.