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 the typical percentage range of silica fume used in concrete mixes?
💡 Hint: Think about the pozzolanic effect in concrete.
Question 2
Easy
What kind of material is silica fume?
💡 Hint: Recall the production process!
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 is a typical substitution level of silica fume in concrete?
- 0-5%
- 5-10%
- 10-15%
💡 Hint: Recall the benefits associated with its addition.
Question 2
True or False: Silica fume can decrease the water demand in concrete mixes.
- True
- False
💡 Hint: Think about the characteristics of silica fume.
Solve 1 more question and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
You are tasked with designing a high-performance concrete mix for a bridge that will be in a coastal area. Discuss the role of silica fume and the adjustments needed in your mix design.
💡 Hint: Consider environmental conditions and performance requirements.
Question 2
Evaluate the cost-effectiveness of using silica fume in standard versus high-performance mixes. What does your analysis show?
💡 Hint: Reflect on both upfront costs and lifecycle benefits.
Challenge and get performance evaluation