Browsing by Subject "Asphalt"
Now showing items 1-11 of 11
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(2019-08-14)The moisture effect on the work of adhesion of asphalt binder and mineral aggregates was investigated using molecular dynamic simulation. The implemented asphalt model, based on the OPLS-AA force field, was validated in ...
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(2012-08-29)Unlike in laboratory compacted asphalt mixtures, the distribution of viscoelastic properties in field layers is not uniform because of nonuniform air void distribution and aging. Therefore, characterization of field specimens ...
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(2012-12-07)While the oxidation of binders in hot mix asphalt (HMA) pavements and its subsequent detrimental effects on pavement life have been well recognized in the last few years, many important issues have not yet been investigated. ...
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(2009-05-15)Hot mix asphalt (HMA) is a composite material which consists of aggregates, air voids and asphalt materials. The HMA response is typically described to be viscoelastic-viscoplastic, and its response is a function of ...
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(2012-07-16)Although evidence is mounting that asphalt binder oxidizes in pavements, and that oxidation and subsequent hardening of asphalt binder has a profound effect on pavement durability, important implementation issues remain ...
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(2015-12-12)The objective of this study is to determine whether exposing an asphaltic roadway to standing liquid water for a duration of twelve hours will cause sufficient moisture penetration to induce deterioration of the roadway. ...
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(2011-08-08)Moisture damage in asphalt mixtures is a complex phenomenon that involves mechanical, chemical, physical and thermodynamic processes. This damage contributes significantly to the premature deterioration of asphalt pavements, ...
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(2010-07-14)The underlying purpose of any pavement is to provide a safe, smooth and reliable surface for the intended users. In the case of hot mix asphalt (HMA) pavements, this includes producing a surface that is resistant to the ...
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Structural Characterization of Micromechanical Properties in Asphalt Using Atomic Force Microscopy (2012-02-14)The purpose of this study was to characterize the micromechanical properties of various structural components in asphalt using Atomic Force Microscopy (AFM). The focus of the study was based on nano-indentation experiments ...
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A Study on the Durability of Flexible Pavement Materials: Asphalt Absorption and Oxidation Kinetics (2015-08-10)Asphalt pavement is the major pavement type worldwide. Today, over 90% highways are paved with asphalt concrete. Like other pavement types, asphalt pavement suffers from certain types of damage, which call for maintenance. ...
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(Texas A&M University. Libraries, 1992)Supercritical (SC) pentane and cyclohexane provided fractionation of reduced crudes and asphalts from three sources. The gas oils present during reduced crude fractionation reduced solvent selectivity and contaminated the ...