"This study was performed to evaluate the effects of varying aggregate sources, aggregate gradations on the stripping and rutting potential of bituminous based plant mixes specified by the Missouri Department of Transportation. The different aggregate combinations included two different aggregate sources (Potosi Dolomite and Jefferson City Dolomite) including two variations for the Jefferson City Dolomite mix to simulate a marginally in-specification mix and an out-of-specification but in-field tolerance mix. The "field" mix simulated the marginal mix where field tolerance of high dust and low binder content were maximized. All three mixes were evaluated for stripping susceptibility using the Tensile Strength Ratio (TSR) test and the Hamburg Wheel Tracking Device (HWTD). The mix characteristics (unit weight, effective binder content, and air voids) were used for a Level 3 analysis in the Mechanistic-Empirical Pavement Design Guide (MEPDG) to determine long term pavement distress conditions such as fatigue cracking, rutting, and IRI (smoothness). The Potosi mix exhibited the best resistance to rutting and stripping during both the TSR testing as well as the Hamburg testing. The Jefferson City In-Spec and Out-of-Spec mixes showed less resistance to rutting and stripping in order, respectively. This was expected for the Jefferson City mixes where the aggregate was of lower quality (higher Los Angeles Abrasion, Micro Deval loss, absorption, and deleterious materials). Also, in the case of the Jefferson City Out-of-Spec mix, the binder content was lower. Upon evaluating the mixes using the MEPDG software, it was shown that mix characteristics such as air voids, VMA, and VFA influenced the fatigue cracking, rutting, and IRI predictions to a minor degree"--Abstract, page iii.
Richardson, David Newton
Volz, Jeffery S.
Civil, Architectural and Environmental Engineering
M.S. in Civil Engineering
Missouri University of Science and Technology
xii, 203 pages
Jefferson City (Mo.)
© 2013 Clayton Reichle, All rights reserved.
Thesis - Open Access
Road materials -- Missouri -- Testing
Aggregates (Building materials) -- Missouri -- Jefferson City -- Testing
Aggregates (Building materials) -- Missouri -- Potosi -- Testing
Dolomite -- Missouri -- Potosi -- Testing
Dolomite -- Missouri -- Jefferson City -- Testing
Pavements, Bituminous -- Performance
Pavements, Asphalt -- Performance
Bituminous materials -- Testing
Building materials -- Standards -- Missouri
Electronic OCLC #
Reichle, Clayton, "Effect of mix parameters on longevity of bituminous mixtures" (2013). Masters Theses. 5393.