Asphalt and Road Construction
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Questions and Answers

What is the primary use of asphalt as mentioned in the text?

  • Agricultural applications
  • Construction of buildings
  • Paving roads (correct)
  • Manufacturing of plastic

Where is the largest natural asphalt deposit found, as mentioned in the text?

  • Canada
  • Saudi Arabia
  • Trinidad (correct)
  • Australia

Which refining process involves no significant changes in the chemical composition of the material?

  • Destructive Distillation
  • Bubble Tower Distillation
  • Steam Distillation
  • Fractional Distillation (correct)

What is the first phase of separation in the fractional distillation process?

<p>Gasoline distillate (B)</p> Signup and view all the answers

How is temperature increased during steam distillation in refining asphalt?

<p>By using steam or vacuum (D)</p> Signup and view all the answers

What remains at the bottom of the distillation tower in the fractional distillation process?

<p>Heavy residual containing asphalts (C)</p> Signup and view all the answers

In which country is the pitch lake containing the largest natural asphalt deposits located?

<p>Trinidad (A)</p> Signup and view all the answers

What are the primary components of asphalt concrete used in road construction?

<p><strong>Aggregates + Binder</strong> (C)</p> Signup and view all the answers

'Destructive Distillation' results in:

<p><strong>Significant changes in composition</strong> (A)</p> Signup and view all the answers

What is the key purpose of Fractional Distillation?

<p>To remove volatile materials until petroleum asphalt is left. (C)</p> Signup and view all the answers

Flashcards

Primary use of asphalt

Paving roads

Largest natural asphalt deposit location

Trinidad

Fractional Distillation Process

A refining process with no significant chemical change.

First phase of fractional distillation

Gasoline distillate

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Asphalt refining temperature increase

By using steam or vacuum

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Bottom of distillation tower

Heavy residual containing asphalts

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Fractional Distillation Purpose

Removing volatile materials to leave petroleum asphalt.

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Components of Asphalt Concrete

Aggregates + Binder

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Destructive Distillation's Effect

Significant changes in composition

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Fractional Distillation Key Purpose

To remove volatile materials until petroleum asphalt is left

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