6505r6 - CGN 6505 REVIEW QUESTIONS - SET NO. 6 Spring 2010...

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CGN 6505 REVIEW QUESTIONS - SET NO. 6 Spring 2010 Fresh Concrete 1. What are the desirable properties of a fresh concrete? 2. For each of the following tests on fresh concrete, describe (A) the purpose of the test, (B) how the results are reported and (C) the meaning of the test result: (1) Slump (2) Ball penetration (3) Vebe (4) Compaction factor (5) Temperature (6) Unit weight (7) Air content (8) Time of setting of concrete (9) Cement content determination (10) Water content determination (11) Test for bleeding of concrete 3. What is the most important factor affecting the consistency of a fresh concrete? What are the other factors affecting the consistency of a fresh concrete? Describe these factors and their effects. Batching, Mixing and Transporting of Concrete 1. How do we ensure uniformity in batching for a concrete mix? 2. How long should we mix a concrete mixture? 3. What are the different ways concrete can be batched, mixed and transported to the job site? What are the different kinds of truck used to transport concrete to the job site?
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6505r6 - CGN 6505 REVIEW QUESTIONS - SET NO. 6 Spring 2010...

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