4.5 - Effects of Admixtures on Fresh and Hardened Concrete Properties
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 is the main function of plasticizers in concrete?
💡 Hint: Think about how plasticizers affect flow.
Name one type of admixture that slows down setting time.
💡 Hint: Consider conditions where slow setting might be needed.
4 more questions available
Interactive Quizzes
Quick quizzes to reinforce your learning
Which of the following admixtures increases workability without extra water?
💡 Hint: Think about the role of each admixture.
True or False: Superplasticizers can reduce the water content while maintaining high workability.
💡 Hint: Consider their effectiveness compared to other admixtures.
1 more question available
Challenge Problems
Push your limits with advanced challenges
Given a scenario where concrete is to be poured in high-temperature conditions, what admixtures would you recommend and why? Discuss their impact on the final properties.
💡 Hint: Consider how temperature affects the concrete curing process.
A project requires concrete that will be subjected to severe freeze-thaw conditions. Which admixtures should be included in the mix design and why?
💡 Hint: Think about the role of air in concrete when subjected to temperature changes.
Get performance evaluation
Reference links
Supplementary resources to enhance your learning experience.