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Questions and Answers
What is concrete composed of?
What is concrete composed of?
- Coarse aggregate, fine aggregate, cement, water, air voids, and admixtures (correct)
- Steel, sand, water, and cement
- Reinforcing bars, gravel, and water
- Gravel, cement, and water
In which construction elements is plain concrete suitable?
In which construction elements is plain concrete suitable?
- Nonstructural elements with minimal tensile forces (correct)
- Structural beams with high tensile forces
- Pavements with no compressive forces
- Foundations with significant tensile stresses
What is the primary purpose of reinforcing bars in reinforced concrete?
What is the primary purpose of reinforcing bars in reinforced concrete?
- Increasing compressive strength
- Absorbing tensile stresses (correct)
- Providing resistance to shear forces
- Reducing the water-cement ratio
What is the main drawback of plain concrete in terms of tensile stresses?
What is the main drawback of plain concrete in terms of tensile stresses?
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What is the function of the paste formed by mixing cement with water in concrete?
What is the function of the paste formed by mixing cement with water in concrete?
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