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Consider the following statements:
1. Tests on cement paste to determine initial and final setting times are done at normal consistency condition.
2. Low heat cement has a high percentage of tricalcium aluminate.
3. High early strength Portland cement contains a larger percentage of tricafcium silicate and a lower percentage of dicalcium silicate.
Which of these statements are correct?
  • a)
    1 and 2    
  • b)
    1 and 3
  • c)
    2 and 3    
  • d)
    1, 2 and 3
Correct answer is option 'B'. Can you explain this answer?
Most Upvoted Answer
Consider the following statements:1. Tests on cement paste to determin...
Statement Analysis:

Statement 1: Tests on cement paste to determine initial and final setting times are done at normal consistency condition.
Statement 2: Low heat cement has a high percentage of tricalcium aluminate.
Statement 3: High early strength Portland cement contains a larger percentage of tricalcium silicate and a lower percentage of dicalcium silicate.

Correct statement: 1 and 3

Explanation:

1. Tests on cement paste to determine initial and final setting times are done at normal consistency condition: The statement is correct. The normal consistency of cement paste is defined as the percentage of water required to produce a paste of standard consistency, which gives a penetration of 10 mm ± 1 mm when tested using Vicat apparatus. The initial and final setting times of cement paste are determined at normal consistency condition.

2. Low heat cement has a high percentage of tricalcium aluminate: The statement is incorrect. Low heat cement has a low percentage of tricalcium aluminate and a high percentage of dicalcium silicate. This type of cement is used in large concrete structures where the heat of hydration needs to be controlled.

3. High early strength Portland cement contains a larger percentage of tricalcium silicate and a lower percentage of dicalcium silicate: The statement is correct. High early strength Portland cement is manufactured by increasing the percentage of tricalcium silicate and reducing the percentage of dicalcium silicate. This type of cement develops strength at an early stage and is used in precast concrete elements, cold weather concreting, and other applications where early strength gain is required.

Therefore, the correct statements are 1 and 3.
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Consider the following statements:1. Tests on cement paste to determine initial and final setting times are done at normal consistency condition.2. Low heat cement has a high percentage of tricalcium aluminate.3. High early strength Portland cement contains a larger percentage of tricafcium silicate and a lower percentage of dicalcium silicate.Which of these statements are correct?a)1 and 2 b)1 and 3c)2 and 3 d)1, 2 and 3Correct answer is option 'B'. Can you explain this answer?
Question Description
Consider the following statements:1. Tests on cement paste to determine initial and final setting times are done at normal consistency condition.2. Low heat cement has a high percentage of tricalcium aluminate.3. High early strength Portland cement contains a larger percentage of tricafcium silicate and a lower percentage of dicalcium silicate.Which of these statements are correct?a)1 and 2 b)1 and 3c)2 and 3 d)1, 2 and 3Correct answer is option 'B'. Can you explain this answer? for Civil Engineering (CE) 2024 is part of Civil Engineering (CE) preparation. The Question and answers have been prepared according to the Civil Engineering (CE) exam syllabus. Information about Consider the following statements:1. Tests on cement paste to determine initial and final setting times are done at normal consistency condition.2. Low heat cement has a high percentage of tricalcium aluminate.3. High early strength Portland cement contains a larger percentage of tricafcium silicate and a lower percentage of dicalcium silicate.Which of these statements are correct?a)1 and 2 b)1 and 3c)2 and 3 d)1, 2 and 3Correct answer is option 'B'. Can you explain this answer? covers all topics & solutions for Civil Engineering (CE) 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Consider the following statements:1. Tests on cement paste to determine initial and final setting times are done at normal consistency condition.2. Low heat cement has a high percentage of tricalcium aluminate.3. High early strength Portland cement contains a larger percentage of tricafcium silicate and a lower percentage of dicalcium silicate.Which of these statements are correct?a)1 and 2 b)1 and 3c)2 and 3 d)1, 2 and 3Correct answer is option 'B'. Can you explain this answer?.
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