Landslide remediation on Ohio State Route 83 using clean coal combustion by-products
- Ohio Dept. of Transportation, Jacksontown, OH (United States). District 5
- Ohio State Univ., Columbus, OH (United States)
- Dravo Lime Co., Pittsburgh, PA (United States)
In the present work, a flue gas desulfurization (FGD) by-product was used to reconstruct the failed portion of a highway embankment. The construction process and the stability of the repaired embankment are examined. State Route 83 in Cumberland, Ohio has been damaged by a slow moving slide which has forced the Ohio Department of Transportation to repair the roadway several times. In the most recent repair FGD by-products obtained from American Electric Power`s Tidd PFBC plant were used to construct a wall through the failure plane to prevent further slippage. In order to evaluate the utility of using coal combustion by-products in this type of highway project the site was divided into three test sections. In the first repair section, natural soil removed form the slide area was recompacted and replaced according to standard ODOT construction practices. In the second section the natural soil was field mixed with the Tidd PFBC ash in approximately equal proportions. The third section was all Tidd ash. The three test sections were capped by a layer of compacted Tidd ash or crushed stone to provide a wearing surface to allow ODOT to open the roadway before applying a permanent asphalt surface. Measurement of slope movement as well as water levels and quality have begun at the site in order to evaluate long term project performance. The completion of this project should lead to increased acceptance of FGD materials in construction projects. Monetary savings will be realized in avoiding some of the disposal costs for the waste, as well as in the reduced reliance on alternative engineering materials.
- Research Organization:
- Dravo Lime Co., Pittsburgh, PA (United States)
- Sponsoring Organization:
- USDOE Assistant Secretary for Fossil Energy, Washington, DC (United States); Ohio State Government, Columbus, OH (United States)
- DOE Contract Number:
- FC21-91MC28060
- OSTI ID:
- 486083
- Report Number(s):
- CONF-9510328-4; ON: DE97006266; TRN: AHC29713%%30
- Resource Relation:
- Conference: University of Kentucky ash utilization conference, Lexington, KY (United States), 23-25 Oct 1995; Other Information: PBD: [1995]
- Country of Publication:
- United States
- Language:
- English
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