Reinforcement within concrete will not rust until an electrolytic cell can be established.

Compute the maximum bar spacing, s, to control for cracks in a one-way slab with 2.5 in. of clear cover and f​y​ = 54 ksi.

A rectangular beam has a cross section of b = 16 in., h = 30 in., and d = 27.5 in. It is reinforced with three No. 5 Grade 60 bars. The concrete strength is 6,100 psi (normal weight). The beam has Grade 60 No. 3 stirrups. Determine the cracking moment, Mcr.

Vertical stirrups are preferable over inclined stirrups when _______.

Misalignment of the reinforcement cannot cause eccentricities in columns.

Crack widths are a concern for several reasons. Which of the following is NOT one of these reasons?

Which of the following does NOT promote corrosion in concrete beams?

A rectangular beam has a cross section of b = 14 in., h = 28 in., and d = 25.5 in. It is reinforced with five No. 5 Grade 60 bars. The concrete strength is 7,900 psi (normal weight). The beam has Grade 60 No. 3 stirrups. Determine the assumed modulus of elasticity of the concrete, Ec.

For a transformation on a reinforced concrete beam, the _______ of concrete is considered when a crack is formed. When there is no crack, the _______ of the concrete is considered.

_______ occupies two or three times the volume of the metal from which it formed.