12.4.3 - Indirect Tensile Stiffness Modulus (ITSM)
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Practice Questions
Test your understanding with targeted questions
What does ITSM stand for?
💡 Hint: Think about the stiffness and tensile properties of bituminous mixes.
What is the formula to calculate ITSM?
💡 Hint: Remember the components in the formula.
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Interactive Quizzes
Quick quizzes to reinforce your learning
What does ITSM measure?
💡 Hint: Focus on the concepts of stiffness and load.
True or False: Increasing sample thickness always raises the ITSM value.
💡 Hint: Think logically about the relationship.
2 more questions available
Challenge Problems
Push your limits with advanced challenges
A pavement core is subjected to a peak load of 5000 N with a thickness of 75 mm, a horizontal deformation of 2 mm, and a diameter of 150 mm. Calculate its ITSM and assess whether it meets the required stiffness level of 10 N/mm².
💡 Hint: Use the formula and ensure your units are consistent.
Discuss the implications of consistently obtaining low ITSM values in project mixes and the recommended course of action to rectify potential pavement issues.
💡 Hint: Consider how mix design impacts performance.
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