Resources

In order to increase knowledge of how fuel consumption corresponds to pavement type, the Swedish National Road and Transport Research Institute (VTI) was commissioned to investigate the difference between asphalt and concrete pavement surfaces. Measurements were made north of Uppsala, Sweden; where a motorway section included both types of pavement....

The purpose of this study is to research the influence of fuel consumption of heavy-duty vehicle for concrete pavement and asphalt pavement respectively. It was decided to adopt a new approach for vehicle fuel consumption -- measurement of the running resistance of vehicles to investigate their rolling resistances due to...

Practicing engineers are under increasing pressure from pavement owners to become ?sustainable?. There are a myriad of publications, models and rating systems available that aim to assist them in this endeavor, in fact so many that they become overwhelmed. This paper provides practical guidance that includes definitions of the terminology,...

Pervious concrete pavement is a sustainable paving material that allows moisture to drain from the surface and naturally infiltrate into the subgrade. Pervious concrete pavement has been used consistently, with success, throughout the southern United States where freeze-thaw cycles are not common. Use of this valuable paving material in freeze-thaw...

Two-lift concrete pavement construction is not new, especially in Europe. In the United States it was used in the mid-1900’s but fell out of favor. This technology is one being considered by the Federal Highway Administration’s “Every Day Counts” initiative to implement innovations to the public. This paper discusses the...

Traffic noise, which is in fact the sum of tyre/road and engine noise, is one of the major disturbances for inhabitants. This has resulted in strict legislation with respect to maximum allowable noise levels at the facades of houses. Reducing traffic noise at the source by minimizing tyre/road noise can...

Work such as: buildings, roads, bridges, tunnels and slope coverings – amongst others, require great amounts of natural materials for their construction. The excessive use of these materials has caused diminishment of the sources that produce them. Additionally, reconstruction, keeping and improvement of works produce great amount of waste materials....

Today, less than 15% of the National Highway System in the United States is comprised of concrete pavement (FHWA, 2007). However, in 1956, at the beginning of the interstate era, the vast majority of primary US routes were concrete roads. Why this significant change in pavement type selected? This paper...

Concrete pavements are recycled for paving applications in at least 41 U.S. states and production of recycled concrete aggregate (RCA) in the U.S. currently averages about 140 million tons (127 million metric tons) per year. The primary application of RCA has been subbase materials, but it also has been used...

In 2006, a group of highway agency and paving industry representatives from the USA visited Europe in search of current practices for the design, construction, maintenance, and rehabilitation of concrete pavements. In every country visited, examples of exposed aggregate concrete were demonstrated. While not a new discovery, the discussions did...

In 2004 the ACPA, PCA, and IGGA cooperated in a research effort at Purdue University’s Herrick Laboratories. The laboratory’s Tire Pavement Test Apparatus (TPTA) is capable of testing any texture design and is not constrained by construction capabilities or costs associated with field test section construction and evaluation. The research...

This paper reports about the results of test sections on a concrete cycle track, where natural aggregates were replaced by selected crushed concrete. The test sections were built in 2006 and monitored directly after the winter periods. In the three tested concrete mixes respectively 50% and 100% of the course...