Effects of Physicochemical Factors on Asphalt Aging
A new model for asphalt oxidative aging is presented. The model proposes that the kinetics of low temperature aging in the pavement temperature range is largely governed by physicochemical...
Asphalt Age Hardening?Trends and Predictions
Pavement cracking is substantially related to the consistency of asphalt cement binders. The variation in hardness of binders is related primarily to asphalt characteristics, environment...
Premature Failures of Outdoor Masonry Pavements
The authors have investigated and repaired a number of premature inservice failures of masonry paving systems in recent years. These systems have become common, built over underground...
Asphalt Cement Specifications and HMA Performance
The standard specifications generally used for hot mix asphalt (HMA) are those published by the American Society for Testing and Materials (ASTM) or the American Association of State Highway...
Material Properties Related to Pavement Performance
As part of the Strategic Highway Research Program, an effort has been made to review research literature which can be used to relate asphalt properties to pavement performance. This report...
Water Sensitivity of Asphalt Paving Mixtures
There are two mechanisms by which moisture can degrade the integrity of an asphalt concrete matrix: (a) loss of cohesive strength and stiffness in the asphalt film and (b) the failure...
Field Performance of Fiber Reinforced Concrete Highway Pavements
This paper reports the evaluation of field performance of fiber reinforced concrete pavements. The concrete was designed for a compressive strength of about 40 MPa. Steel fibers with hooked...
Montana's Approach to Reduce Asphalt Pavement Rutting
The Montana Department of Highways experienced premature rutting in some asphalt concrete pavements primarily on the east-west interstate in Eastern Montana. Montana participated with...
Effect of Lime on Asphalt Concrete Pavement Performance
In the early to mid 1980's, the Federal Highway Administration constructed 15 experimental field test sections in four states designed to investigate mitigating moisture damage...
Experimental Mixes to Minimize Rutting
This report describes the materials and construction details involved in the design and placement of four experimental mixes on I-95 (Richmond-Petersburg Turnpike) in 1985 and follows...
Concrete Pavement?Specification by Modeling
Concrete pavement specifications have traditionally been prescriptive with construction in-put defined. This practice does not include a definition of the product intended, restricts innovation,...
Curing Time for CRCP Mixtures Based on Flexural Strength
In this paper, the effect of different curing conditions on the flexural strength is investigated, and also the minimum required period for moist curing is found. The combined effect of...
Effect of Environment on Durability of Pavement Materials: An Overview
The best known causes of material degradation in pavements include environment, traffic loads, and the use of substandard materials. Presented in the paper is a critical review of the...
Environmental Considerations in the Design of Asphalt Concrete Paving Mixtures
The design of asphalt concrete mixtures is largely based on two empirical mixture design methods. These are 'Marshall' and 'Hveem',...
Feasibility of Class C FRP Load Transfer Devices for Highway Jointed Concrete Pavements
The objective of this paper is to analyze the feasibility of using corrosion free fiberglass reinforced plastic (FRP) devices in lieu of steel tie bars in the longitudinal joints of highway...
Application of Waterjet Cutting for Pothole Repair
A study was conducted to determine the feasibility of utilizing high pressure waterjet cutting technology as an infrastructure maintenance tool. The influence of waterjet cutting parameters,...
Accurate Computation of Freezing Index
'Freezing index' (cumulative degree-days below freezing) is used for predicting frost penetration depths and modelling pavement performance. Contour maps which illustrate geographic trends...
Lime-Fly Ash-Aggregate Base and Subbase Courses
This paper describes the use of lime-fly ash-aggregate (LFA) base and subbase courses for highway pavements. This type pavement course is considered as an alternate to cement treated bases...
Theoretical Prediction of Temperature Distributions in Airfield Runway Pavements Due to Aircraft Operation
The determination of this transient temperature distribution is important in predicting the thermal effects on pavements due to aircraft operation. In this research, heat exchange at the...
Residential Streets
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