COMPACTION OF GRADED AGGREGATE BASES AND SUBBASES

Compaction of unbound, granular base and subbase layers in flexible pavement systems is reviewed. The distinction between density and compaction is related. The beneficial effect of increased density achieved through compaction on specific properties of grade aggregate mixtures, including strength and deformation characteristics, is demonstrated by the use of data drawn from the literature. The influence of: (1)Aggregate gradation; (2)water content; and (3) excessive fines for a given compactive effort on achievable density, and ultimately on the performance of the pavement system, is analyzed. In-service compaction of granular base materials by traffic is reviewed. Recommendations for specification requirements for granular base and subbase materials to be used in pavement systems that will be subjected to the demands of modern, high-volume, high-speed, heavy traffic, are made.

Availability:
- Find a library where document is available. Order URL: http://worldcat.org/oclc/8674831
Corporate Authors:
American Society of Civil Engineers

345 East 47th Street
New York, NY United States 10017-2398
Authors:
- Marek, C R
Publication Date: 1977-1

Media Info

Features: References;
Pagination: p. 103-113
Serial:
- Journal of Transportation Engineering
- Volume: 103
- Issue Number: 1
- Publisher: American Society of Civil Engineers
- ISSN: 0733-947X
- Serial URL: https://ascelibrary.org/journal/jtepbs

Subject/Index Terms

TRT Terms: Aggregate gradation; Aggregates; Base course (Pavements); Compaction; Density; Fines (Materials); Flexible pavements; Granular materials; Materials; Moisture content; Paving; Specifications; Subgrade materials; Traffic
Old TRIS Terms: Aggregate characteristics; Bases; Materials specifications
Subject Areas: Construction; Geotechnology; Highways; Materials; Operations and Traffic Management;

Filing Info

Accession Number: 00152727
Record Type: Publication
Source Agency: Engineering Index
Files: TRIS
Created Date: Sep 20 1977 12:00AM