10 Questions
What is the temperature range for testing specimens in air?
75°F ± 15°F (24°C ± 8°C)
What is the minimum humidity level for testing specimens in air?
Less than 80 %
What is the minimum duration for testing specimens in air?
48 hours
What is the standard practice for capping concrete masonry units?
ASTM C1552
What is the purpose of determining the location of the mass centroidal axes?
To align the specimen with the center of thrust of the machine
What should be wiped clean before testing?
The bearing faces of the platens and the bearing plates
What is the minimum time required to apply the remaining load after the initial load?
1 minute
What is the unit of measurement for the maximum compressive load?
Pounds (lbf)
What is the purpose of aligning the mass centroidal axes with the center of thrust of the machine?
To apply the load uniformly
What is the maximum allowable moisture level for testing specimens?
No visible moisture
Learn about the procedures for preparing and testing concrete samples, including sample preparation, testing setup, and best practices for curing concrete samples. Understand the impact of mix proportions and testing variations on outcomes.
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