Surface Improvement and Dust Palliation of Unpaved Secondary Roads and Streets, Progress Report, HR-151, 1971

(1971) Surface Improvement and Dust Palliation of Unpaved Secondary Roads and Streets, Progress Report, HR-151, 1971. Transportation, Department of

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Abstract

A combined study of dust control and low-cost surface improvements of soil and aggregate materials for immediate (and intermediate) use as a treated surface course is being conducted in three concurrent phases: (1) laboratory screening of various additives thought to have potential for long-lasting dust palliation, soil-additive strength, durability, and additive retention potential; (2) test road construction, using those additives from the screening studies that indicate promise for performance and serviceability; and (3) observation and tests of constructed sections for evaluation of the additive's contribution to performance and serviceability as well as relationship to initial costs. A brief review is presented of the problem, some methods of measuring it, previously adopted approaches to it, project field tests and a portion of the results thus far, and portions of the laboratory work accomplished in the screening studies.

Item Type: Departmental Report
Keywords: Additives, Aggregates, Dust control, Emulsified asphalt, Lignin, Liquid asphalt, Secondary roads, Soils, Surface treating, Unpaved roads
Subjects: Transportation
Transportation > Roads and highways
Transportation > Research
Transportation > Economics, finance, and taxes
Transportation > Maintenance and preservation
ID Code: 17467
Deposited By: Iowa DOT Library
Deposited On: 25 Jul 2014 17:02
Last Modified: 11 Feb 2015 20:56
URI: http://publications.iowa.gov/id/eprint/17467