Field Performance and Evaluation of Slurry Seals, HR-195, 1980

(1980) Field Performance and Evaluation of Slurry Seals, HR-195, 1980. Transportation, Department of

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Abstract

As part of the overall research program of evaluating asphalt emulsion slurry seal as a pavement maintenance material, 31 duplicate 500-ft test sections were constructed on U.S. 6 between Adel and Waukee in Dallas County during September and October of 1978. These test sections included combinations of eight aggregates, two gradings, three asphalt emulsions, two mineral fillers, and a range of emulsion contents determined by laboratory mix designs. The emulsion contents of the test sections varied from 10.3% for Section 7A (Ferguson coarse) to 32.9% for Section 31A (lightweight aggregate). The post-construction performance evaluation of the test sections, consisting primarily of the friction tests and surface appearance observations, was conducted at different time intervals up to 24 months after construction. At the 24-month final evaluation, most of the test sections had carried a total of 1.4 million vehicles.

Item Type: Departmental Report
Keywords: Anionic emulsified asphalt, Asphalt emulsions, Fine aggregates, Laboratory tests, Lightweight aggregates, Limestone, Pavement maintenance, Performance evaluations, Slurry seals
Subjects: Transportation > Pavements
Transportation
Transportation > Materials
Transportation > Materials > Gravel and aggregates
Transportation > Roads and highways
Transportation > Maintenance and preservation
ID Code: 17332
Deposited By: Iowa DOT Library
Deposited On: 02 Jul 2014 18:34
Last Modified: 05 Feb 2015 19:53
URI: http://publications.iowa.gov/id/eprint/17332