CALTRANS ACCELERATED PAVEMENT TEST (CAL/APT) PROGRAM - RESULTS FROM TESTS ON ASPHALT PAVEMENTS 1994-1998
This paper describes results obtained during the period 1994-1998 in the Caltrans Accelerated Pavement Testing (CAL/APT) Program, a joint research and development effort between the California Department of Transportation, the University of California at Berkeley, The Division of Roads and Transport Technology of the Council of Scientific and Industrial Research of South Africa, and Dynatest Consulting Inc. of Ojai, California. It includes the results of Heavy Vehicle Simulator (HVS) tests on asphalt pavements, both new and overlaid, constructed according to Caltrans specifications coupled with associated laboratory tests and analyses. Results from the CAL/APT Program have led to recommendations related to improved asphalt concrete mix design; the use of asphalt treated permeable base (ATPB) drainage layers; and improved construction practices, including the recommendation for better compaction, the use of a tack coat between asphalt concrete lifts, and the use and development of pay factors as part of a quality control/quality assurance (QC/QA) program for asphalt pavement construction. In addition, the study of the effects of tire pressure and channelized traffic holds the potential for improved mix design and analysis for the consideration of permanent deformation response. Results obtained to date demonstrate the efficacy of government, industry, and academia working together to provide solutions to critical pavement problems as well as the benefits of international cooperation in which technology is transferred among the participants to the mutual benefit of the involved organizations.
- Record URL:
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Corporate Authors:
University of California, Davis
Pavement Research Center, One Shields Avenue
Davis, CA United States 95616California Department of Transportation
1120 N Street
Sacramento, CA United States 95814 -
Authors:
- Harvey, J T
- Hoover, T
- Coetzee, N F
- Nokes, W A
- Rust, F C
- Publication Date: 1999
Language
- English
Media Info
- Features: Figures; References; Tables;
- Pagination: 27 p.
Subject/Index Terms
- TRT Terms: Accelerated tests; Air pressure; Analysis; Asphalt concrete; Asphalt pavements; Base course (Pavements); Compaction; Cooperation; Deformation; Drainage; Heavy vehicles; Laboratory tests; Mix design; Pavement design; Pavement performance; Pay; Permeability; Quality control; Simulation; Tack coats; Technology transfer; Tires; Traffic channelization; Transportation departments
- Uncontrolled Terms: Asphalt treated permeable base drainage layers
- Subject Areas: Design; Education and Training; Highways; Hydraulics and Hydrology; Materials; Pavements; Vehicles and Equipment; I22: Design of Pavements, Railways and Guideways; I31: Bituminous Binders and Materials;
Filing Info
- Accession Number: 00780142
- Record Type: Publication
- Files: TRIS, STATEDOT
- Created Date: Dec 16 1999 12:00AM