Podcast
Questions and Answers
What happens to paste strength and stiffness as water/cement ratio (W/C) increases?
What happens to paste strength and stiffness as water/cement ratio (W/C) increases?
- They decrease (correct)
- They increase
- They remain constant
- They fluctuate
How does the shrinkage potential of concrete change with increasing water content?
How does the shrinkage potential of concrete change with increasing water content?
- Shrinkage potential increases (correct)
- Shrinkage potential remains the same
- Shrinkage potential decreases
- Shrinkage potential fluctuates
How do larger concrete members affect the duration of shrinkage compared to smaller members?
How do larger concrete members affect the duration of shrinkage compared to smaller members?
- The duration is shorter for larger members
- The duration fluctuates based on member size
- The duration is the same for all members
- The duration is longer for larger members (correct)
What type of shrinkage occurs before concrete has set?
What type of shrinkage occurs before concrete has set?
Which factor influences the rate of shrinkage in concrete?
Which factor influences the rate of shrinkage in concrete?
What does concrete with a higher aggregate content exhibit in terms of shrinkage?
What does concrete with a higher aggregate content exhibit in terms of shrinkage?
Which factor affects the resistance of concrete to the shrinkage process?
Which factor affects the resistance of concrete to the shrinkage process?
What is the main purpose of using admixtures like accelerator, retarder, or plasticizer in concrete?
What is the main purpose of using admixtures like accelerator, retarder, or plasticizer in concrete?
What happens to the deformation of concrete under sustained loading over time?
What happens to the deformation of concrete under sustained loading over time?
Why is achieving low permeability in concrete important?
Why is achieving low permeability in concrete important?
What are the factors influencing the permeability of concrete?
What are the factors influencing the permeability of concrete?
