Practice Role Of Microstructure In Durability And Permeability (8) - Durability of Construction Materials

Practice: Role of Microstructure in Durability and Permeability

Lesson 8Durability of Construction Materials

Practise this section

8 questions

Flashcard drill
2 cards from this section. Quick, good the night before a test.
Exercise
6 questions · about 4 min · pass mark 70%. Hints available.
Sign up to start the exercise
Quiz
2 questions · about 1 min · pass mark 70%. Hints available.
Sign up to start the quiz

6 sample questions

Question 1.
What are capillary pores?
Show hintHide hint
Think about size and function in concrete.
Question 2.
What is the role of gel pores?
Show hintHide hint
Consider their size compared to capillary pores.
3Question 3.
What are the two types of pores in the microstructure of hardened cement?
- Capillary and Gel
- Gel and Thermal
- Capillary and Fiber
Show hintHide hint
Think about the terms we've just discussed.
4Question 4.
True or False: Unhydrated cement grains can strengthen concrete.
- True
- False
Show hintHide hint
Consider how hydration impacts concrete's performance.
Question 5.
Given a concrete mix with high capillary porosity, predict the potential long-term durability issues. What strategies could mitigate these issues?
Show hintHide hint
Consider the relationship between porosity and fluid penetration.
Question 6.
Analyze how controlling the formation of crystalline products can enhance concrete durability in a heavily saturated environment.
Show hintHide hint
Think about how internal stresses affect surface integrity.

4 more questions in this section. Enroll free to practise them all.