THE VERSATILITY OF ASPHALT IN HIGHWAY, AIRFIELD, AND OTHER ENGINEERED STRUCTURES

A brief history is presented on the use and sources of asphalt in engineered structures over the ages. The rheology of asphalt including its unique behavior as a viscoelastic material is discussed. The concept of time-temperature superposition and its value in analyzing the behavior of asphalt materials over a broad range of service conditions is reviewed. The binder tests that evolved from the Strategic Highway Research Program (SHRP) to characterize asphalt behavior are discussed along with an explanation of the Performance Graded (PG) binder specifications being introduced in the United States (U.S.) as part of the Superpave Design System. The primary asphalt pavement distress mechanisms of permanent deformation (rutting), low temperature thermal cracking, and fatigue cracking are indentified along with a discussion on the extent to which the asphalt binder contributes to these pavement distresses. The environmental factors of aging and moisture damage that contribute to asphalt pavement distress are also addressed. Base stabilization with asphalt and cement modified asphalt emulsions is described. Experiences with the use of asphalt emulsions to construct open graded mixes are presented. Pavement products such as chip seals, slurry seals, and Cape seals that use asphalt emulsions are also discussed. For major highways or airfield structures and for special applications that can justify the increased cost, modifiers are often used to improve the engineering properties of an asphalt. Rubber, various polymers, and fibers are among a host of additives that may be selected to enhance the low and/or highway temperature properties to improve the flexural behavior of an asphalt mix. Some of the experiences with these modified systems are discussed. Asphalt or modified asphalt finds application in engineered structures other than highways or airfields such as earth dam cores, reservoir and landfill linings, revetments and railroad track beds. Examples of these applications are included in the paper. For the covering abstract of the proceedings, see IRRD 490713.

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• Corporate Authors:

  INFORMATION INSTITUTE OF SCIENCE AND TECHNOLOGY, MINISTRY OF COMMUNICATIONS, P.R. CHINA

  240 HUIXINLI, CHAOYANG DISTRICT
  BEIJING, ZZ BEIJING    100029

  INFORMATION INSTITUTE OF SCIENCE AND TECHNOLOGY, MINISTRY OF COMMUNICATIONS, P.R. CHINA

  240 HUIXINLI, CHAOYANG DISTRICT
  BEIJING, ZZ BEIJING    100029

  INFORMATION INSTITUTE OF SCIENCE AND TECHNOLOGY, MINISTRY OF COMMUNICATIONS, P.R. CHINA

  240 HUIXINLI, CHAOYANG DISTRICT
  BEIJING, ZZ BEIJING    100029

  INFORMATION INSTITUTE OF SCIENCE AND TECHNOLOGY, MINISTRY OF COMMUNICATIONS, P.R. CHINA

  240 HUIXINLI, CHAOYANG DISTRICT
  BEIJING, ZZ BEIJING    100029

  INFORMATION INSTITUTE OF SCIENCE AND TECHNOLOGY, MINISTRY OF COMMUNICATIONS, P.R. CHINA

  240 HUIXINLI, CHAOYANG DISTRICT
  BEIJING, ZZ BEIJING    100029

  INFORMATION INSTITUTE OF SCIENCE AND TECHNOLOGY, MINISTRY OF COMMUNICATIONS, P.R. CHINA

  240 HUIXINLI, CHAOYANG DISTRICT
  BEIJING, ZZ BEIJING    100029

  INFORMATION INSTITUTE OF SCIENCE AND TECHNOLOGY, MINISTRY OF COMMUNICATIONS, P.R. CHINA

  240 HUIXINLI, CHAOYANG DISTRICT
  BEIJING, ZZ BEIJING    100029

  INFORMATION INSTITUTE OF SCIENCE AND TECHNOLOGY, MINISTRY OF COMMUNICATIONS, P.R. CHINA

  240 HUIXINLI, CHAOYANG DISTRICT
  BEIJING, ZZ BEIJING    100029

  INFORMATION INSTITUTE OF SCIENCE AND TECHNOLOGY, MINISTRY OF COMMUNICATIONS, P.R. CHINA

  240 HUIXINLI, CHAOYANG DISTRICT
  BEIJING, ZZ BEIJING    100029
• Authors:
  • KINROSS-WRIGHT, C
  • Santucci, L
• Conference:
  • 3RD INTERNATIONAL CONFERENCE ON ROAD & AIRFIELD PAVEMENT TECHNOLOGY, PROCEEDINGS
• Publication Date: 1998-4-28

Language

• English

Media Info

• Features: References;
• Pagination: p. 1-9
• Serial:
  • Volume: 1

Subject/Index Terms

• TRT Terms: Applications; Base course (Pavements); Binders; Bitumen; Bituminous mixtures; Emulsions; Loss and damage; Pavements; Polymers; Rheology; Soil stabilization; Stabilized materials; Standards; Tests
• Uncontrolled Terms: Application (Use); Modifications
• Geographic Terms: United States
• ITRD Terms: 4948: Binder; 4963: Bitumen; 4993: Bitumen emulsion; 4967: Bituminous mixture; 1614: Damage; 9048: Modification; 2955: Pavement; 7482: Polymer; 5442: Rheology; 3688: Roadbase stabilization; 187: Specification (standard); 6255: Test; 8122: USA; 9084: Use
• Subject Areas: Geotechnology; Highways; Pavements; Research;

Filing Info

• Accession Number: 00752670
• Record Type: Publication
• Source Agency: Transport Research Centre (CDV)
• ISBN: 962-8267-06-9
• Files: ITRD
• Created Date: Sep 28 1998 12:00AM