Masters Theses

Abstract

"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.

Advisor(s)

Richardson, David Newton

Committee Member(s)

Volz, Jeffery S.
Feys, Dimitri

Department(s)

Civil, Architectural and Environmental Engineering

Degree Name

M.S. in Civil Engineering

Publisher

Missouri University of Science and Technology

Publication Date

Summer 2013

Pagination

xii, 203 pages

Note about bibliography

Includes bibliographical references (pages 98-100).

Geographic Coverage

Missouri
Jefferson City (Mo.)
Potosi (Mo.)

Rights

© 2013 Clayton Reichle, All rights reserved.

Document Type

Thesis - Open Access

File Type

text

Language

English

Subject Headings

Road materials -- Missouri -- TestingAggregates (Building materials) -- Missouri -- Jefferson City -- TestingAggregates (Building materials) -- Missouri -- Potosi -- TestingDolomite -- Missouri -- Potosi -- TestingDolomite -- Missouri -- Jefferson City -- TestingPavements, Bituminous -- PerformancePavements, Asphalt -- PerformanceBituminous materials -- TestingBuilding materials -- Standards -- Missouri

Thesis Number

T 10356

Electronic OCLC #

858610347

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