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KNS 1042 Civil Engineering Materials: Pavement Materials - Binder Types

10 Questions

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KNS 1042 Civil Engineering Materials: Pavement Materials - Binder Types

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Questions and Answers

What are the primary reasons for the extensive use of bituminous materials in roadway construction?

Excellent binding characteristics and waterproofing properties (correct)

Low cost and high resistance to environmental degradation

Resistance to temperature changes and high melting point

High strength and durability

What is the main constituent of bituminous materials?

High molecular weight hydrocarbons (correct)

Petroleum oils

Tar

Adhesive properties

What is a distinguishing characteristic of bitumen compared to tar?

Solubility in carbon disulphide (correct)

Waterproofing properties

Distinct melting point

Adhesive properties

What type of bitumen is recommended for surface dressing and patchwork in road construction?

Rapid Curing (RC) Signup and view all the answers

What is the approximate bitumen content in bitumen emulsion?

68% Signup and view all the answers

What are tars derived from?

Organic substances such as coal, wood, or petroleum Signup and view all the answers

Which type of tar has a high aromatic content and 50% pitch content?

Tars produced at temperatures above 1200°C during manufacturing of coke Signup and view all the answers

KNS 1042 Civil Engineering Materials: Pavement Materials - Binder Types

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Podcast

Questions and Answers

What are the primary reasons for the extensive use of bituminous materials in roadway construction?

What is the main constituent of bituminous materials?

What is a distinguishing characteristic of bitumen compared to tar?

What type of bitumen is recommended for surface dressing and patchwork in road construction?

What is the approximate bitumen content in bitumen emulsion?

What are tars derived from?

Which type of tar has a high aromatic content and 50% pitch content?

Where are the biggest deposits of natural asphalt / rock asphalt / lake asphalt found?

What is the nature of low aromatic tar?

What is the maximum Pen value for asphalt found in Trinidad?

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