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The Characteristics Of Underground Utility Repairs Made In Asphaltic Roadways – Comparing The Use Of Grade D Aggregate As A Viable Backfill Option, Susan Gail Deland
The Characteristics Of Underground Utility Repairs Made In Asphaltic Roadways – Comparing The Use Of Grade D Aggregate As A Viable Backfill Option, Susan Gail Deland
Masters Theses
Abstract
Given that most utilities are located beneath public right of ways, it is difficult to perform repairs to the utility without significantly disturbing the existing roadway. Currently there are several standard orders of procedure that deal with small-scale repairs on asphaltic surfaces. This study investigates the use of Grade D Aggregate as a backfill during a utility repair versus the condition of the repair. Five East Tennessee utilities provided a total of 60 utility repair locations over three years of age; 30 of which incorporated Grade D Aggregate and 30 incorporated #57 Stone.
The Tennessee Department of Transportation specifies …
Evaluation Of Moisture Damage In Warm Mix Asphalt Containing Recycled Asphalt Pavement, Emily D. Shrum
Evaluation Of Moisture Damage In Warm Mix Asphalt Containing Recycled Asphalt Pavement, Emily D. Shrum
Masters Theses
Warm mix asphalt (WMA) has been used worldwide for many years, primarily in Europe. The National Asphalt Pavement Association first brought WMA to the United States in 2002. By using warm mix technology, the temperature of an asphalt mixture during production, transportation, and compaction decreases dramatically. Several concerns about WMA arise due to the reduced mixing temperature. One of the primary concerns in asphalt pavement is the moisture damage. The lower mixing temperature may not be high enough to vaporize all the moisture absorbed in the aggregate, and part of the moisture may be entrapped in the pavements during compaction. …