Field Evaluation and Cost Effectiveness of Crack Sealing in Flexible and Composite Pavements
| Autor: | Mohammad Z. Bashar, Zhongjie Zhang, Kevin Gaspard, Mostafa A. Elseifi, Momen R. Mousa |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
050210 logistics & transportation
Field (physics) Cost effectiveness Computer science business.industry Mechanical Engineering 05 social sciences Composite number 0211 other engineering and technologies 02 engineering and technology Structural engineering Preventive maintenance Transverse plane 021105 building & construction 0502 economics and business business Civil and Structural Engineering |
| Zdroj: | Transportation Research Record: Journal of the Transportation Research Board. 2672:51-61 |
| ISSN: | 2169-4052 0361-1981 |
| Popis: | One of the most common methods used to treat longitudinal and transverse cracks is crack sealing (CS), which is categorized as a preventive maintenance method. Field performance and cost-effectiveness of this treatment widely vary depending on pavement conditions and installation of the material. The objective of this study was to evaluate the field performance and cost-effectiveness of CS in flexible and composite pavements in hot and wet climates such as Louisiana, and to develop a model that would quantify the expected benefits of CS given project conditions. To achieve this objective, 28 control sections that were crack-sealed between 2003 and 2010 were monitored for at least four years. These sections included flexible and composite pavements, sealed and unsealed segments, and varying traffic levels. The performance of these sections was evaluated for the random cracking index (RCI) and roughness index (RI). Based on the results of this analysis, it was concluded that CS only has a significant impact on random cracking. When compared with untreated segments, CS extended pavement service life (PSL) by two years. When compared with the original pavement, CS extended PSL by 5.6 and 3.2 years for flexible and composite pavements, respectively, if applied at the correct time. The cost-benefit analysis indicated that CS is cost-effective whether asphalt emulsion or rubberized asphalt sealant is used. A non-linear regression model was developed to predict the extension in PSL because of CS without the need for performance data based on the average daily traffic (ADT), pavement type, and prior pavement conditions. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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