Civil Engineering (CE) Exam > Civil Engineering (CE) Questions > The Vee-Bee testa)is suitable for concrete mi...
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The Vee-Bee test
- a)is suitable for concrete mixes of low and very low workabilities
- b)is a remoulding test
- c)is unsuitable for concretes having a slump of 75 mm or above
- d)is suitable since the concrete in the test receives a similar treatment as it would in actual practice
Correct answer is option 'A'. Can you explain this answer?
Most Upvoted Answer
The Vee-Bee testa)is suitable for concrete mixes of low and very low w...
In Vee bee test, the oberservations are noted in seconds and for high workable mixture time is very less i.e. fraction of a second. So this test is mainly used for very low and low workable mixtures.
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The Vee-Bee testa)is suitable for concrete mixes of low and very low w...
The Vee-Bee test is a test used to determine the workability of concrete. It measures the time taken for a specified quantity of concrete to flow out through a Vee-Bee consistometer. The test is commonly used for concrete mixes of low and very low workabilities. Option A, which states that the Vee-Bee test is suitable for concrete mixes of low and very low workabilities, is the correct answer.
Explanation:
Low and very low workability concrete mixes typically have low slump values. Slump is a measure of the consistency and workability of fresh concrete and is determined by the flow of concrete when placed in a slump cone. The slump test is commonly used for concrete with a slump value of 75 mm or above. However, the Vee-Bee test is not suitable for concretes with a slump of 75 mm or above, as mentioned in option C.
The Vee-Bee test involves subjecting the concrete to repeated jolting and vibration, simulating the compaction process that occurs during actual practice. This treatment helps to assess the ability of the concrete to flow and consolidate under the influence of vibration. Therefore, option D, which states that the Vee-Bee test is suitable since the concrete in the test receives a similar treatment as it would in actual practice, is incorrect.
The Vee-Bee test is not a remoulding test, as mentioned in option B. Remoulding tests involve deforming and remoulding a specimen of concrete to determine its workability. The Vee-Bee test, on the other hand, measures the flow of concrete through a consistometer and does not involve remoulding.
In summary, the Vee-Bee test is suitable for concrete mixes of low and very low workabilities, making option A the correct answer.
Explanation:
Low and very low workability concrete mixes typically have low slump values. Slump is a measure of the consistency and workability of fresh concrete and is determined by the flow of concrete when placed in a slump cone. The slump test is commonly used for concrete with a slump value of 75 mm or above. However, the Vee-Bee test is not suitable for concretes with a slump of 75 mm or above, as mentioned in option C.
The Vee-Bee test involves subjecting the concrete to repeated jolting and vibration, simulating the compaction process that occurs during actual practice. This treatment helps to assess the ability of the concrete to flow and consolidate under the influence of vibration. Therefore, option D, which states that the Vee-Bee test is suitable since the concrete in the test receives a similar treatment as it would in actual practice, is incorrect.
The Vee-Bee test is not a remoulding test, as mentioned in option B. Remoulding tests involve deforming and remoulding a specimen of concrete to determine its workability. The Vee-Bee test, on the other hand, measures the flow of concrete through a consistometer and does not involve remoulding.
In summary, the Vee-Bee test is suitable for concrete mixes of low and very low workabilities, making option A the correct answer.
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The Vee-Bee testa)is suitable for concrete mixes of low and very low workabilitiesb)is a remoulding testc)is unsuitable for concretes having a slump of 75 mm or aboved)is suitable since the concrete in the test receives a similar treatment as it would in actual practiceCorrect answer is option 'A'. Can you explain this answer?
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