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Full Depth Reclamation of Asphalt Pavements Using Class F Fly Ash
| Content Provider | Semantic Scholar |
|---|---|
| Author | Chapman, Jeffryes W. Zand, B. Butalia, Tarunjit S. William |
| Copyright Year | 2007 |
| Abstract | This study demonstrates the use of Class F fly ash in combination with lime or lime kiln dust in the full depth reclamation (FDR) of asphalt pavements. FDR is a process of pulverizing a predetermined amount of flexible pavement that is structurally deficient, blending it with chemical additives and water, and compacting it in place to construct a new stabilized base course. With funding from the Ohio Coal Development Office, two existing failed asphalt pavements in the fastest growing counties of Ohio were rehabilitated in summer of 2006 with Class F fly ash in combination with lime and lime kiln dust. After the construction, relationships for the service performance and structural behavior of the FDR pavements were monitored to determine how the fly ash sections compared to other more traditional pavement rehabilitation techniques. Service performance and structural behavior were determined with the use of sensors embedded in the road and Falling Weight Deflectometer (FWD) tests. Results of the FWD tests conducted up to 3 months after road reclamation show that Class F fly ash can be used successfully in combination with lime kiln dust or lime for FDR work to obtain resilient modulli values ranging from 500 to 750 ksi or more. Long-term monitoring of the pavement response will be carried out till December 2008. |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | http://www.flyash.info/2007/98chapman.pdf |
| Alternate Webpage(s) | https://p2infohouse.org/ref/45/44824.pdf |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
