ASPHALT MIXTURE SEGREGATION: DIAGNOSTICS AND REMEDIES (WITH DISCUSSION)
Asphalt mixture segregation involves a concentration of coarse materials in a specific area and fines in another area. Asphalt surfaces which exhibit segregation are open textured and generally cannot meet normal density requirements. The open texture and low density allow moisture and air to permeate the mixture, resulting in durability-related damage such as ravelling, cracking, or moisture damage. The overall effect is substantially reduced pavement performance and increased maintenance. This paper provides information related to the segregation mechanism, the causes of segregation, identification of possible causes, and measures to minimize or eliminate segregation. The basic segregation causes and remedial measures are discussed under the following headings: (1) mixture design, (2) stockpiling and handling, (3) surge and storage silos, and (4) paving.
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Corporate Authors:
Association of Asphalt Paving Technologists (AAPT)
400 Selby Avenue, Suite I
St Paul, MN United States 55102 -
Authors:
- Kennedy, T W
- McGennis, R B
- Holmgreen, R J
- Conference:
- Publication Date: 1987
Language
- English
Media Info
- Features: Figures; Photos; References; Tables;
- Pagination: p. 304-329
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Serial:
- Volume: 56
Subject/Index Terms
- TRT Terms: Aggregate segregation; Asphalt mixtures; Crash causes; Loss and damage; Materials management; Mechanical analysis; Mix design; Moisture damage; Pavement cracking; Pavement performance; Paving; Prevention; Silos; Stockpiling; Stripping (Pavements); Water
- Subject Areas: Construction; Design; Highways; Materials; Pavements; Safety and Human Factors; Security and Emergencies; I22: Design of Pavements, Railways and Guideways; I23: Properties of Road Surfaces; I31: Bituminous Binders and Materials; I52: Construction of Pavements and Surfacings;
Filing Info
- Accession Number: 00739800
- Record Type: Publication
- Files: TRIS
- Created Date: Aug 28 1997 12:00AM