Fresh Concrete Properties Quiz
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Questions and Answers

What are the two sets of criteria to consider when making concrete?

Long-term requirements of the hardened concrete – strength, durability and volume stability, Short-term requirements - workability

How is workability defined in the context of concrete?

Workability is defined as the amount of useful internal work necessary to produce full compaction without segregation.

What is consistence in the context of concrete?

Consistence is defined as the ease with which concrete will flow or used to describe the firmness of form of a substance.

Why is it vital to achieve a maximum possible density in concrete?

<p>Because the strength of concrete is adversely and significantly affected by the presence of voids in the compacted mass.</p> Signup and view all the answers

What does the strength - density ratio indicate in concrete?

<p>The strength - density ratio indicates the relationship between strength and density, with a higher ratio indicating higher strength for a given density.</p> Signup and view all the answers

Explain two sets of criteria to consider when making concrete as mentioned in the text above.

<p>Long-term requirements of the hardened concrete – strength, durability, and volume stability; Short-term requirements - workability</p> Signup and view all the answers

Define workability in the context of concrete.

<p>Workability is defined as the amount of useful internal work necessary to produce full compaction without segregation. It is required to overcome the internal friction between the individual particles in the concrete.</p> Signup and view all the answers

What is consistence in the context of concrete?

<p>Consistence is defined as the ease with which concrete will flow or used to describe the firmness of form of a substance.</p> Signup and view all the answers

Why is it vital to achieve a maximum possible density in concrete?

<p>It is vital to achieve a maximum possible density because the strength of concrete is adversely and significantly affected by the presence of voids in the compacted mass.</p> Signup and view all the answers

What is the significance of the strength-density ratio in concrete?

<p>The strength-density ratio is significant because it indicates the relationship between strength and density, showing how changes in density affect the strength of concrete.</p> Signup and view all the answers

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