Special Surface Preparation Prior to Bituminous Overlays, HR-231, 1987

(1987) Special Surface Preparation Prior to Bituminous Overlays, HR-231, 1987. Transportation, Department of


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Research project HR-231, "Special Surface Preparation Prior to Bituminous Overlay", was initiated in 1982 to study the effectiveness of three different crack fillers in extending pavement life. In particular, this project was designed to determine if any of the fillers could substantially reduce the rate of subsurface deterioration and general deterioration of an asphalt pavement at crack locations. This project also sought to determine the effects of the various crack filling procedures on different thicknesses of bituminous overlays. The three fillers, a fly ash slurry, an emulsion, and a rubberized asphalt mixture, were used along with a control section with no crack filler material on a 2.5 mile section of Cerro Gordo Trunk Route S-25 south of the town of Thornton. This report discusses the construction and performance of each filler material and makes recommendations concerning future use of any of the materials used.

Item Type: Departmental Report
Keywords: Asphalt pavements, Bituminous overlays, Cracking, Emulsions, Fillers (Materials), Fly ash, Overlays (Pavements), Rubberized bitumen, Surface preparation, Thickness
Subjects: Transportation > Pavements
Transportation > Materials
Transportation > Roads and highways
Transportation > Research
ID Code: 16244
Deposited By: Iowa DOT Library
Deposited On: 05 Mar 2014 13:49
Last Modified: 29 Oct 2014 12:06
URI: https://publications.iowa.gov/id/eprint/16244