7.7.4 - Harsh Mix in RMC Plants
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Practice Questions
Test your understanding with targeted questions
What is a harsh mix?
💡 Hint: Think about the characteristics of the mix.
Name one cause of a harsh mix.
💡 Hint: Consider the types of aggregates in the mix.
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Interactive Quizzes
Quick quizzes to reinforce your learning
What is the main cause of a harsh mix in RMC plants?
💡 Hint: Think about what helps to make the mix smooth.
True or False: A harsher mix can improve the strength of the final concrete structure.
💡 Hint: Consider how workability affects the concrete application.
1 more question available
Challenge Problems
Push your limits with advanced challenges
Calculate the optimal fine to coarse aggregate ratio to mitigate harshness in a mix. Given: 30% maximum coarse aggregate size and current fine aggregates at 20%.
💡 Hint: Think about what ratio usually works best for concrete and adjust accordingly.
Case Study: During a site evaluation, a harsh mix was discovered causing placement issues. Suggest a step-by-step approach to resolve this, including material adjustments.
💡 Hint: Consider what the first steps in resolving a construction issue might involve.
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