00677637

Component

http://onlinepubs.trb.org...trr/1994/1469/1469-003.pdf

https://scholar.google.co...+Rao&publication_year=1994

Longitudinal joints are often the weakest part in a hot-mix asphalt (HMA) pavement. Common problems associated with joints are the formation of longitudinal cracks along the joints, ravelling, and widening of cracks due to subsequent ingress of water. It is believed that these problems occur when there is a substantial difference in densities on either side of the joint. Normally low densities occur at the edge of the lane paved first (cold lane). This is primarily due to the fact that the edge of the cold lane is unconfined. The subsequent lane (hot lane), however, has a confined edge and, therefore, generally has higher density. Although several longitudinal joint construction techniques are specified and practiced in different states, the relative effectiveness of these methods has not been established. There is a need to evaluate the performance of these techniques and identify the best method(s). The performance of some popularly used techniques and some recently proposed techniques are evaluated. Seven techniques were attempted in a project in Michigan, and eight techniques were attempted in a project in Wisconsin. Both projects involved a dense-graded HMA surface course overlay. Each technique was used on a 152-m (500-ft) test section. Michigan wedge joint and the cutting wheel techniques gave the highest density at the joint in the Michigan project. The cutting wheel and the edge restraining device gave the highest joint density in the Wisconsin project. Evaluation of all joints by visual inspection for at least 5 years is planned. The final rankings will be based on the long-term field performance.

This paper appears in Transportation Research Record No. 1469, Flexible Pavement Construction Issues. Distribution, posting, or copying of this PDF is strictly prohibited without written permission of the Transportation Research Board of the National Academy of Sciences. Unless otherwise indicated, all materials in this PDF are copyrighted by the National Academy of Sciences. Copyright © National Academy of Sciences. All rights reserved

01495764

English

p. 18-25

1994

Transportation Research Record

0309061059

Figures (8) ; References (8) ; Tables (3)

Asphalt pavements; Construction management; Density; Hot mix asphalt; Inspection; Longitudinal joints; Overlays (Pavements); Performance; Performance evaluations; Test sections; Time duration; Vision

Field performance; Long term

Construction; Highways; I52: Construction of Pavements and Surfacings

TRIS, TRB

May 9 1995 12:00AM

• EFFECT OF FIELD COMPACTION METHOD ON FATIGUE LIFE OF ASPHALT PAVEMENTS
• FACTORS THAT AFFECT THE VOIDS IN THE MINERAL AGGREGATE OF HOT-MIX ASPHALT
• HOT-MIX ASPHALT MIX PROPERTIES MEASURED FOR CONSTRUCTION QUALITY CONTROL AND ASSURANCE
• INVESTIGATION OF AASHTO T 283 TO PREDICT THE STRIPPING PERFORMANCE OF PAVEMENTS IN COLORADO
• LABORATORY EVALUATION OF THE ADDITION OF LIME TREATED SAND TO HOT-MIX ASPHALT