Catalog Search Results
Author
Publisher
Colorado Department of Transportation, Applied Research and Innovation Branch
Pub. Date
2017.
Language
English
Description
Crack sealants are often utilized as a preservation tool in asphalt pavements. When a hot mix asphalt overlay is placed on top a pavement containing crack sealants, a bump and additional transverse cracks sometimes occur in the new asphalt overlay. These bumps and sometimes, transverse cracks are initiated during breakdown rolling and become progressively more severe upon further compaction. This paper presents results of a five-year study designed...
Author
Publisher
Colorado Department of Transportation, Applied Research and Innovation Branch
Pub. Date
2015.
Language
English
Description
Asphalt overlays are one of the most common tools for rehabilitating existing asphalt and concrete pavements. However, the performance of new overlays is often jeopardized by the cracking distress in the existing pavement. This existing cracking propagates, or reflects, through the new overlay to the surface of the new overlay. The rate at which this reflection cracking propagates to the surface is a function of overlay thickness crack severity, traffic...
Author
Publisher
Colorado Department of Transportation, Applied Research and Innovation Branch
Pub. Date
2019.
Language
English
Description
The two objectives for this research were to review the 2016 asphalt mixture specifications to determine whether changes were warranted that could lead to more durable asphalt mixtures and, if so, adjust the specification accordingly and construct test sections to evaluate the revised specification.
Author
Publisher
Colorado Department of Transportation, Applied Research and Innovation Branch
Pub. Date
2015.
Language
English
Description
Full depth reclamation of asphalt pavements using asphalt emulsions is a process that recycles and rejuvenates the existing asphalt pavement surface, base, and sometimes, the subgrade, providing an improved underlying structure for the new asphalt pavement. This report provides guidance, standardized plans and specifications, construction inspection best practices materials testing procedures and frequencies, a performance evaluation process, and...
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