Podcast
Questions and Answers
What property does alumina impart to cement?
What property does alumina impart to cement?
- Increased setting time
- Reduced setting time (correct)
- Increased strength
- Reduced weight
What is the effect of excess alumina on cement?
What is the effect of excess alumina on cement?
- Increases strength
- Has no effect
- Increases setting time
- Decreases strength (correct)
What is the maximum amount of magnesia that should be present in cement?
What is the maximum amount of magnesia that should be present in cement?
- 1%
- 3%
- 5%
- 2% (correct)
What is the role of iron oxide in cement?
What is the role of iron oxide in cement?
What is the purpose of adding gypsum (CaSO4·2H2O) to cement?
What is the purpose of adding gypsum (CaSO4·2H2O) to cement?
What is the maximum amount of sulfur trioxide that should be present in cement?
What is the maximum amount of sulfur trioxide that should be present in cement?
Why is the presence of lime in a sufficient quantity required in cement?
Why is the presence of lime in a sufficient quantity required in cement?
What happens if there is an excess of lime in cement?
What happens if there is an excess of lime in cement?
What is the role of silica in cement?
What is the role of silica in cement?
Which component of cement usually presents to about 30 percent of its composition?
Which component of cement usually presents to about 30 percent of its composition?
What is the main function of alumina in cement?
What is the main function of alumina in cement?
What happens if there is a deficiency in lime in cement?
What happens if there is a deficiency in lime in cement?
What is the primary focus of Field Testing in construction materials and testing?
What is the primary focus of Field Testing in construction materials and testing?
In the context of construction, what does 'manufacturing' refer to?
In the context of construction, what does 'manufacturing' refer to?
Who typically takes on multiple roles such as laborer, paymaster, and design team in a building construction project?
Who typically takes on multiple roles such as laborer, paymaster, and design team in a building construction project?
What does CMT stand for in the context of construction?
What does CMT stand for in the context of construction?
Which area of testing services involves activities like evaluating compaction, moisture, and air content?
Which area of testing services involves activities like evaluating compaction, moisture, and air content?
When Field Testing indicates a need for further study, what is the next step in the comprehensive CMT process?
When Field Testing indicates a need for further study, what is the next step in the comprehensive CMT process?
What is the primary purpose of testing construction materials?
What is the primary purpose of testing construction materials?
Which of the following is NOT a common type of laboratory testing for construction materials?
Which of the following is NOT a common type of laboratory testing for construction materials?
Where does field testing of construction materials typically take place?
Where does field testing of construction materials typically take place?
Which type of testing is NOT mentioned in the text?
Which type of testing is NOT mentioned in the text?
What is a common basic material used in construction, according to the text?
What is a common basic material used in construction, according to the text?
Which of the following statements is NOT true regarding the importance of construction material testing?
Which of the following statements is NOT true regarding the importance of construction material testing?
What is the coefficient of thermal expansion for concrete compared to steel?
What is the coefficient of thermal expansion for concrete compared to steel?
What contributes to the protection of steel in corrosive environments when used in conjunction with concrete?
What contributes to the protection of steel in corrosive environments when used in conjunction with concrete?
According to the American Concrete Institute (ACI), how is workability of concrete defined?
According to the American Concrete Institute (ACI), how is workability of concrete defined?
Why do concrete structures generally require lower maintenance compared to steel or wooden structures?
Why do concrete structures generally require lower maintenance compared to steel or wooden structures?
How can concrete be applied in different methodologies according to the text?
How can concrete be applied in different methodologies according to the text?
What does ASTM (American Society for Testing Materials) consider workability of concrete to be?
What does ASTM (American Society for Testing Materials) consider workability of concrete to be?
