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Reinforced Concrete

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Questions and Answers

What is the purpose of including reinforcement in reinforced concrete?

To compensate for concrete's low tensile strength and ductility (correct)

To improve the concrete's thermal conductivity

To increase the overall weight of the concrete

To enhance the concrete's resistance to compression

What is the most common material used for reinforcement in reinforced concrete?

Steel bars (rebar) (correct)

Aluminum bars

Wood fibers

Plastic polymers

What is the purpose of reinforcing schemes in reinforced concrete?

To resist tensile stresses and prevent unacceptable cracking (correct)

To increase the concrete's alkalinity

To reduce the overall weight of the concrete

To enhance the concrete's resistance to fire

What technique is employed to reinforce concrete besides embedding steel bars passively?

Post-tensioning Signup and view all the answers

What are the most common methods of permanently stressing reinforced concrete in the United States?

Pre-tensioning and post-tensioning Signup and view all the answers

Which of the following materials is NOT mentioned as a possible reinforcing material in modern reinforced concrete?

Aluminum Signup and view all the answers

What is the purpose of post-tensioning in reinforcing concrete?

To improve the behavior of the final structure under working loads Signup and view all the answers

What does the alkalinity of the concrete protect the steel rebar from?

Corrosion Signup and view all the answers

What is the purpose of permanently stressing reinforced concrete in the United States?

To improve the behavior of the final structure under working loads Signup and view all the answers

What are the most common materials used for reinforcement in reinforced concrete?

Steel and polymers Signup and view all the answers