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Questions and Answers
What is concrete?
What is concrete?
- A compound constituting about one-quarter of the volume of portland cement.
- A hydraulic cement made by burning a mixture of clay and limestone in a rotary kiln.
- An artificial, stonelike building material made by mixing cement and various mineral aggregates with sufficient water. (correct)
- A compound constituting about half the volume of portland cement.
What is portland cement named after?
What is portland cement named after?
- Isle of France
- Isle of Portland, England (correct)
- Isle of Spain
- Isle of Italy
What does tricalcium silicate constitute in portland cement?
What does tricalcium silicate constitute in portland cement?
- Half the volume (correct)
- One-quarter of the volume
- One-tenth of the volume
- None of the above
What is the function of tricalcium aluminate in portland cement?
What is the function of tricalcium aluminate in portland cement?
Which raw material is NOT listed as a component used to make concrete?
Which raw material is NOT listed as a component used to make concrete?
What is the difference between concrete and portland cement?
What is the difference between concrete and portland cement?
What is the purpose of adding gypsum to clinker?
What is the purpose of adding gypsum to clinker?
Which type of portland cement is used when resistance to moderate sulfate action is required?
Which type of portland cement is used when resistance to moderate sulfate action is required?
What distinguishes Type III portland cement from other types?
What distinguishes Type III portland cement from other types?
When is Type IV portland cement typically used?
When is Type IV portland cement typically used?
What is the defining characteristic of air-entraining portland cement?
What is the defining characteristic of air-entraining portland cement?
Why is white portland cement used in precast concrete work?
Why is white portland cement used in precast concrete work?
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