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Questions and Answers
What should be used to tap molds that are prone to denting or permanent distortion?
What should be used to tap molds that are prone to denting or permanent distortion?
- A mallet
- An open hand (correct)
- A handheld float
- A tamping rod
What is the maximum size of depressions or projections allowed on the finished surface?
What is the maximum size of depressions or projections allowed on the finished surface?
- 3.3 mm (correct)
- 5 mm
- 10 mm
- 1 mm
How should the top surfaces of cylinders be finished?
How should the top surfaces of cylinders be finished?
- By striking them off with a tamping rod or handheld float or trowel (correct)
- By applying a thin layer of water
- By striking them off with a mallet
- By applying a thin layer of stiff portland cement paste
What is the purpose of capping the top surface of freshly made cylinders?
What is the purpose of capping the top surface of freshly made cylinders?
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How should beams be finished after consolidation of the concrete?
How should beams be finished after consolidation of the concrete?
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Why should the specimens be marked to identify them?
Why should the specimens be marked to identify them?
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What should be avoided when marking the specimens?
What should be avoided when marking the specimens?
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What is the purpose of section 9.6 of the standard?
What is the purpose of section 9.6 of the standard?
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What type of material is permitted to be used to cap the top surface of freshly made cylinders?
What type of material is permitted to be used to cap the top surface of freshly made cylinders?
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What is the primary goal of the finishing process?
What is the primary goal of the finishing process?
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