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3 cards from this section. Quick, good the night before a test.
What is the purpose of target mean strength in concrete mix design?
Think about how we safeguard against inconsistencies in materials.
What does workability refer to in concrete?
Consider the practical aspects of pouring concrete.
What is the characteristic strength of concrete?
Reflect on how test results relate to strength.
True or False: The target mean strength is designed to be lower than the characteristic strength.
Consider the function of the target mean strength.
Given a concrete mix with a characteristic strength of 30 MPa and a standard deviation of 5 MPa, calculate the target mean strength using the tolerance factor of 1.65.
Revisit the formula approach discussed previously.
Discuss how a higher water-cement ratio could impact the durability of concrete in marine environments.
Consider how water impacts the structure of concrete.
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