2.9 - Alkali-Aggregate Reaction (AAR)
Enroll to start learning
You’ve not yet enrolled in this course. Please enroll for free to listen to audio lessons, classroom podcasts and take practice test.
Practice Questions
Test your understanding with targeted questions
What materials in cement can cause AAR?
💡 Hint: Think about the chemical components of cement.
What is the outcome of AAR on concrete?
💡 Hint: Consider the pressures that might build up.
4 more questions available
Interactive Quizzes
Quick quizzes to reinforce your learning
What causes the expansion in AAR?
💡 Hint: Consider which materials in cement are reactive.
True or False: AAR can lead to cracking in concrete.
💡 Hint: Think about the implications of material expansion.
1 more question available
Challenge Problems
Push your limits with advanced challenges
Given a scenario where a newly constructed pavement begins to crack after a rainy season, analyze the potential causes and propose solutions.
💡 Hint: Think about how weather influences chemical reactions!
Assuming you have a concrete design specification, outline the concrete mix considering AAR implications.
💡 Hint: What materials help mitigate alkalis?
Get performance evaluation
Reference links
Supplementary resources to enhance your learning experience.