US Highway 84 chip seal field trials and laboratory test results.
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2009-03-23
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Edition:Final report.
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Abstract:This report contains laboratory and field testing of US Highway 84 in Lincoln county Mississippi. A full scale field test consisting of seven polymer modified asphalt emulsions and a CRS-2 control emulsion was constructed in September of 1989 and subsequently evaluated for two years. Laboratory testing of these emulsions was performed with the Frosted Marble Test and the Tensile Stress Test, alongside standard emulsion test protocols. The goal of the work at the time it was conducted was to add satisfactory performing products to the DOT Approved Products List.
Recent research activities at the Mississippi DOT have focused on preservation and maintenance, indicating a desire to develop performance related specifications and material acceptance procedures. No formal report was generated at the time of testing, but a large of amount of data was present in MDOT files. Additionally, a large amount of data regarding the testing was owned by producers involved with the test sections. This data was combined, organized, synthesized, and developed into this report. Several of the products (or very similar versions) tested on US Highway 84 remain in use at present. The data contained in this report will be used in future research activities aimed toward performance oriented specification and acceptance of chip seal materials.
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