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2 cards from this section. Quick, good the night before a test.
What is the primary function of tie bars in concrete pavements?
Think about how they help slabs work together.
What happens if tie bars are not properly placed?
Consider the consequences of loose connections.
What is the primary role of tie bars in rigid pavements?
Think about how slabs need to stay together.
Tie bars should be hooked or deformed. True or False?
Consider the importance of a secure fit for performance.
If a cement concrete pavement requires tie bars with a total steel area of 2.0 cm²/m and the allowable tensile stress is 1750 kg/cm², what would be the required diameter of the tie bars assuming a circular cross-section?
Remember to rearrange the area formula to solve for diameter.
Consider a scenario where the bond stress for deformed bars increases to 30 kg/cm². Re-evaluate the length of a tie bar with a 1 cm diameter and 1750 kg/cm² allowable tensile stress. How would the increase in bond stress affect the length?
Reflect on how stronger bond stress influences the anchoring requirement.
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