Concrete pavement recycling is a relatively simple process that involves breaking, removing and crushing hardened concrete from an acceptable source to produce recycled concrete aggregate (RCA). The formal process of RCA production typically involves an initial evaluation of the existing source concrete; pavement preparation, which may include removal of an asphalt overlay; pavement breaking, r...

concrete pavements and precast members gained notoriety because of uncertainty over the cause of their distress. Because of the unexplained and complex nature of several of these cases, considerable debate and controversy have arisen in the research and consulting community. To a great extent, this has led to a misperception that the problems are more prevalent than actual case studies would in...

Airfield pavement design is a decision making process which uses pertinent information available to make required judgments. One of the tools used in the design process is analysis of the pavement system. To be of value, it may be necessary to make many analyses of several pavement systems with different gear configurations and different loading conditions. With the more sophisticated models, s...

One of the most pressing issues facing state departments of transportation (DOTs) is highway noise, particularly in urban areas. Where autos are the predominant vehicles on high-speed facilities, most of the noise is generated at the tire-pavement interface. The impact of tire-pavement noise lessens as the percentage of trucks increase and other elements of highway noise—vehicle drive trains an...

Sealers are used to enhance concrete durability through their ability to prevent moisture penetration and chloride intrusion, consequently improving the freeze-thaw performance of the concrete and preventing corrosion of the steel reinforcement, respectively. This paper summarizes three years of comprehensive field and laboratory investigations which were undertaken at the University of Manitob...

This paper discusses the variations in the early-age pavement smoothness at different measurement times and locations in three jointed plain concrete pavements ( JPCPs) representing different ranges of construction times. Surface profile measurements were made during the early morning and late afternoon hours at different locations of the instrumented JPCPs during the first 7 d after constructi...