Let Me Shingle Your Roadway, HR-2079, Interim Report, 1997

(1997) Let Me Shingle Your Roadway, HR-2079, Interim Report, 1997. Transportation, Department of


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Approximately ten million tons of waste bituminous roofing are torn off annually in the United States. This volume is a major factor in the rapid filling of landfills. In 1995, Benton County, Iowa initiated a program to cost effectively recycle torn off waste shingles. Nine hundred tons of waste shingles were ground using a Maxigrind. A magnetic roller on the discharge conveyor removed most of the nails. Five hundred tons of the ground waste shingles were blade mixed into 0.6 km (0.4 mi) of a crushed stone granular surfaced Benton County rural secondary roadway. A magnet attached to the motor grader removed another 1/3 kg (3/4 lb) of nails during the spreading and mixing operation on the 0.6 km (0.4 mi) section of roadway. The bitumen of the waste shingles was very effective in providing a dust free granular surfaced roadway. It remains relatively dust free one year after treatment.

Item Type: Departmental Report
Keywords: Crushed rock, Dust control, Granular materials, Recycling, Rural highways, Shingles, Surface course (Pavements)
Subjects: Transportation > Pavements
Transportation > Materials
Transportation > Roads and highways
Transportation > Design and Construction
Transportation > Maintenance and preservation
ID Code: 19901
Deposited By: Iowa DOT Library
Deposited On: 24 Jun 2015 17:10
Last Modified: 24 Jun 2015 17:10
URI: https://publications.iowa.gov/id/eprint/19901