Conductive asphalt concrete with high thermal conductivity has been proposed to improve the solar energy collection and snow melting efficiencies of asphalt solar collector (ASC). This paper aims to provide some insight into choosing the basic materials for preparation of conductive asphalt concrete, as well as determining the evolution of thermal characteristics affected by environmental facto...

The Arizona Department of Transportation (ADOT) has used crumb rubber from ground tires since the late 1960's to primarily reduce reflective cracking. In 1988, ADOT started to use crumb rubber mixed with hot asphalt, commonly referred to as asphalt rubber (AR) as a binder in hot mix asphalt (HMA). Typically, these mixes are either open-graded or gap-graded and from half inch to one inch or one ...

A procedure for stabilization/solidification of loose waste from the manufacture of Ni and Cd electrodes, which represents a nonutilizable and noncombustible hazardous waste, has been worked out. The procedure comprises solidifying the waste by means of an anionic slow-setting aqueous-asphalt emulsion with subsequent formation of an asphalt coating on the surface of solidified waste by spraying...

In order to make full use of aged asphalt, a light oil regenerant for cold mixing was prepared in this paper, and the ratio regeneration effect studied through performance test recycled asphalt. The determined by 60 °C kinematic viscosity, mass loss before after aging, asphalt three indicators. thermogravimetric analysis four-component mechanical properties mixture were 15 splitting 20 compress...

This study quantifies the potential environmental benefits associated with incorporation of industrial by-products and recycled materials combined warm mix asphalt (WMA) additives in wearing course mixtures for pavement construction. An electric arc furnace (EAF) steel slag-based three incorporating slag fractionated reclaimed (RA) varying contents (i.e. 25, 40, 50%) were analyzed comparatively...

This report evaluates the effectiveness of rubber-asphalt and ebonite-asphalt mixes based on a review of published literature and unpublished reports. It discusses in detail various aspects of these mixes, including: diffe ent applications, physical properties, experiences of state highway agencies, and claimed advantages and problems associated with their use. The addition of ground tire rubbe...

With the growing impact of climate change, there is an increasing need and obligation to reduce responsible greenhouse gases (GHG) in road construction as well. Using life cycle assessment (LCA) methods, several studies have already separately analysed individual parameters asphalt production process illustrated potential improvements terms GHG reduction. However, data most assessments originat...

Although various polyolefins have intermittently been used for making roads since the 1980s, recycling of plastic waste into raises new challenges related to production, performance and durability plastic-modified asphalt. This review critically discusses incorporating recycled plastics bitumen/asphalt in terms selection, chemical compatibility, long-term potential contributions fuming, micropl...