Professional Courses
Industry-relevant training in Business, Technology, and Design to help professionals and graduates upskill for real-world careers.
Categories
Interactive Games
Fun, engaging games to boost memory, math fluency, typing speed, and English skills—perfect for learners of all ages.
Typing
Memory
Math
English Adventures
Knowledge
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 related to the topic.
Question 1
Easy
What is an admixture?
💡 Hint: Think about what is mixed with concrete besides water and aggregates.
Question 2
Easy
Name one type of admixture.
💡 Hint: Remember the list we discussed in class.
Practice 4 more questions and get performance evaluation
Interactive Quizzes
Engage in quick quizzes to reinforce what you've learned and check your comprehension.
Question 1
What does a plasticizer do in concrete?
- Increases water content
- Improves workability
- Accelerates setting time
💡 Hint: Think about how they function in mixing.
Question 2
True or False: Retarders speed up the setting time of concrete.
- True
- False
💡 Hint: Focus on the purpose of retarders discussed in class.
Solve 1 more question and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
You are tasked with preparing a large concrete structure in a hot climate. Which admixtures would you consider using and why?
💡 Hint: Think about the challenges posed by high temperatures.
Question 2
Analyze the implications of using too much air-entraining agent in a mix. What effects might this have on the concrete?
💡 Hint: Consider the balance needed in concrete properties.
Challenge and get performance evaluation