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4 cards from this section. Quick, good the night before a test.
What is the purpose of using sealed specimens in shrinkage testing?
Think about why we would want to keep moisture in.
Which standard outlines the method for measuring concrete shrinkage?
This standard is essential for concrete testing procedures.
What measurement method does ASTM C157 specify for concrete?
Focus on the primary purpose of the ASTM C157.
True or False: Sealed specimens prevent moisture loss during shrinkage measurements.
Think about what 'sealed' means.
Design an experiment comparing drying shrinkage and autogenous shrinkage using both sealed and unsealed specimens. Include your hypotheses, methods, and expected results.
Remember to consider moisture loss as a primary factor influencing shrinkage.
Discuss how differing environmental conditions might impact the results of your shrinkage tests. Consider both high and low humidity.
Think about how moisture in the air affects concrete.
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