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3 cards from this section. Quick, good the night before a test.
What is compressive strength?
Think about concrete's capacity to resist crushing.
Name two types of specimens used in compressive strength tests.
Consider the common shapes of concrete casts.
What is the primary objective of the compressive strength test?
Think about concrete's strength in compression.
True or False: Flexural strength is directly related to wind load resistance in structures.
Consider what kind of stress due to wind would act on concrete.
A concrete beam is tested and found to have a flexural strength of 5 N/mm². If the span is 300 mm, the width is 150 mm, and the depth is 250 mm, verify if the calculated flexural strength matches the test result.
Make sure to ensure the units stay consistent while calculating.
You are tasked with testing the bond strength of concrete with reinforcement bars of different diameters (10 mm vs 20 mm). How does the diameter affect the bond stress, assuming the same load is applied?
Think about how changing dimensions impact the surface area.
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