5 - Selection of Water-Cement Ratio
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 effect of a high water-cement ratio on concrete?
💡 Hint: Think about how water affects solidity.
Name one guideline to determine the water-cement ratio.
💡 Hint: Consider the standards governing concrete design.
4 more questions available
Interactive Quizzes
Quick quizzes to reinforce your learning
What is the primary influence of the water-cement ratio on concrete?
💡 Hint: Look for the factor that combines how robust the concrete is.
True or False: A lower water-cement ratio generally results in higher strength.
💡 Hint: Think about the relationship between water and solidity.
Get performance evaluation
Challenge Problems
Push your limits with advanced challenges
Consider a scenario where the required compressive strength of concrete is 30 MPa. The durability requirement suggests a maximum w/c ratio of 0.45. You start trials at 0.50, adjusting down for workability. Describe your findings.
💡 Hint: What trends do you notice as you lower the water content?
You are designing a mix for an area with harsh weather. The requirements state a w/c ratio of 0.40 is needed. However, your initial trials at 0.45 provide a workable mix that barely meets criteria. What steps would you take?
💡 Hint: How do additives influence your mix?
Get performance evaluation
Reference links
Supplementary resources to enhance your learning experience.