Case study of modified bituminous mixtures: Somerset, Kentucky

Amy L. Simpson, Kamyar C. Mahboub

Research output: Contribution to conferencePaperpeer-review

17 Scopus citations


The primary objective of this study was to conduct a comparative analysis on various modified asphalt mixture systems in order to determine their suitability for conditions that are commonly encountered in Kentucky. Modifiers included in the study were Vestoplast, Polypropylene Fiber, Gilsonite, Polyester Fiber, Styrelf and Neoprene. These mixtures were placed in one mile test sections along with a control on highway KY 80 in Pulaski County. Laboratory mixture performance tests were conducted on each of the mixtures and a statistically based comparative analysis was conducted to determine relative expected differences in the performance of each mixture. In addition to the laboratory testing, initial rut measurements were also taken. Preliminary concision indicated that the Vestoplast, Polypropylene, and Gilsonite mixtures have less potential for cracking. Potential for stripping was significantly lower in the Vestoplast, Gilsonite and Styrelf mixtures. Fatigue cracking was expected to be less severe in the Polypropylene mixtures have the least potential for rutting.

Original languageEnglish
Number of pages9
StatePublished - Oct 1994
EventProceedings of the 3rd Materials Engineering Conference - San Diego, CA, USA
Duration: Nov 13 1994Nov 16 1994


ConferenceProceedings of the 3rd Materials Engineering Conference
CitySan Diego, CA, USA

ASJC Scopus subject areas

  • Building and Construction


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