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Workability of Fresh Concrete Quiz

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Questions and Answers

What factor affects the strength of concrete by altering its compaction?

Grading of aggregates (correct)
Shape and Texture of aggregates
Water Content
Maximum size of aggregate

What test is used to measure the density ratio of concrete?

Compacting Factor Test (correct)
VeBe Test
Flow Table Test
Slump Test

Which test is used to determine variations in the uniformity of a concrete mix?

Flow Table Test
Slump Test (correct)
Kelly Ball Test
VeBe Test

What does segregation refer to in the context of concrete?

Separation of constituents in a mixture (C) Signup and view all the answers

Which factor increases workability but decreases strength in concrete mixes?

Water Content (B) Signup and view all the answers

What does the Kelly Ball Test measure in concrete?

Depth of penetration (A) Signup and view all the answers

What is the purpose of compaction in concrete?

To eliminate entrapped air in concrete (C) Signup and view all the answers

Which type of concrete is specifically designed to be pumpable?

Pumped concrete (C) Signup and view all the answers

What does bleeding refer to in the context of concrete?

Separation of water from the mix and rise to the surface (B) Signup and view all the answers

Which method is commonly used for underwater concreting?

Tremie method (C) Signup and view all the answers

What does laitance refer to in concrete construction?

A layer of weak material on the surface of concrete mixes (B) Signup and view all the answers

What does hardened concrete consist of primarily?

Cement, water, and coarse aggregate (B) Signup and view all the answers