Portland Cement Concrete Utilizing Recycled Pavement, MLR-77-3, 1977

(1977) Portland Cement Concrete Utilizing Recycled Pavement, MLR-77-3, 1977. Transportation, Department of

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Abstract

Two objectives were involved in this recycling project: To determine if the asphalt concrete surfacing from an existing roadway could be removed, the existing portland cement concrete pavement broken, removed, crushed to 1-1/2 inch minus, proportioned through a conventional central mix proportioning plant with the addition of concrete sand, and placed with a conventional slipform paver; and to determine if a two course, composite pavement, each course of different mix proportions, could be placed monolithically with conventional slipform equipment after being proportioned and mixed in a conventional central mix plant. The project was completed with no major problem. The objectives were satisfactorily met. The project was a success to the degree that the Iowa D.O.T. is proceeding with at least two projects for the 1977 construction season that will utilize the old pavement as appregate for the new pavement.

Item Type: Departmental Report
Keywords: Asphalt concrete, Cluster analysis, Mix design, Portland cement concrete, Recycling, Slip form paving
Subjects: Transportation
Transportation > Materials
Transportation > Roads and highways
Transportation > Research
Transportation > Research > Concrete
Transportation > Design and Construction
ID Code: 17133
Deposited By: Iowa DOT Library
Deposited On: 06 Jun 2014 17:48
Last Modified: 15 Jan 2015 12:41
URI: http://publications.iowa.gov/id/eprint/17133