Asphalt Rubber Technology Information Center
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Ambient, Ground Rubber Crumb
In summary, ambient ground rubber crumb should be specified for most applications due to both its superior properties and lower cost... Read More

An Innovative Process for On-Site Hot Recycling of Six-Year-Old Open-Graded Mixes
The A1 Autoroute connecting Paris with Northern Europe is one of the most heavily traffic roads carrying an average of 40,000 vehicles per day, 30% of which are
trucks.  In the early 1980’s, during rainy weather, truck traffic had become such a problem that the highway...
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Asphalt Emulsions in Cold Recycling
An asphalt emulsion consists of three basic ingredients:  asphalt, water, and an emulsifying agent.  In some instances the use of a stabilizer is needed.  In making an
asphalt emulsion the object is to disperse the asphalt into water...
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Asphalt Rubber Recycling? State Tests Will Shed Light
A discussion on completed and planned projects which are looking into the recyclability of pavements containing crumb rubber.  New Jersey and Michigan have
completed recycling projects.  Emissions information is available from the New Jersey...
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Burlington County Closed Loop Used Tire Recycling Facility
More than 282 million scrap tires, or approximately 1 tire per person, are generated each year in the United States.  More than 75 percent of these scrap tires are
placed in landfills and stockpiles or dumped illegally.  Some estimates indicate that illegal dumping may...
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Engineering Aspects of Recycled Materials for Highway Construction - Final Report
This report presents an assessment of environmental aspects and engineering factors related to the utilization of recycled materials in highway construction.  A basic
overview and assessment of different technologies, processes, and methods for recycling of various materials into...
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Illinois State Toll Highway Authority Hot In-Place Recycling Project
The Illinois toll highway authority chose hot surface asphalt recycling as an alternative to conventional repair methods on Interstate 88, a major east-west route near
Chicago.  When confronted with five miles of rapidly deteriorating pavement, superintendent of maintenance John Benda and...
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Implementation of the 1986 AASHTO Guide at the City and County Levels
Many cities and counties have not yet implemented the 1986 AASHTO guide mostly because of its sophistication and its wide scope.  This paper provides guidelines
and recommendations to narrow the scope of the guide to match the...
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Incentives for Tire Recycling and Reuse
Summary report that provides information on the tire waste stream form manufacture to retailer to consumer to disposal.  End uses for waste tires including, pyrolysis,
power production, road building...
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In-Place Surface Recycling
The in-place surface recycling process, utilizing equipment specifically designed to heat and rework asphalt pavement, does present an alternative to the conventional
plant recycling or leveling resurfacing processes.  The process has a proven...
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In-Situ Cold Recycling
Based on the construction of almost 600 lane miles of cold in-situ recycled pavements, it is believed that we have an economical process that can be used to
rehabilitate aged, rutted and/or badly cracked asphalt pavements.  The process...
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KDOT’s 1977, 1978, and 1979 3R Experimental Project
A slide presentation outline describing KDOT’s 1977, 1978, & 1989 experiments which used heater scarification, asphalt rubber interlayers, rubber crack sealant, fabric
membranes & special crack...
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Marketing Development Strategies for Recyclable Materials
The New Jersey Office of Recycling objectives for conducting these market development studies for waste paper, plastics, ferrous scrap, tires, and batteries.  They
wanted to identify those factors that are most critical in determining...
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Mix Design and Construction Procedures for Cold In-Place Recycling
One of the most promising and cost effective approaches for rehabilitating distressed asphalt pavements is cold in-place recycling (CIR).  Spurred by the recent
development of new milling and reclaiming equipment.  CIR has evolved into one of the fastest growing pavement rehabilitation...
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New Jersey Department of Transportation Experience With Recycled Materials
In the 1970’s and 1980’s the solid waste disposal problem in New Jersey slowly grew to crisis proportions.  Solid waste regulations were developed and the NJDOT was
mandated to develop uses for recycled waste...
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New Used Tire Recovery Process For Value-Added Products
The goal of this work is to demonstrate a novel pulverization process known as solid-state shear extrusion (originally developed in the former USSR) for used tire
recovery.  Whole tire products and tread tires have been successfully pulverized into fine powder of different particle sizes and size...
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Olympic Boulevard Asphalt Rubber Recycling Project
The project had two primary goals:  A) To determine the recyclability of Asphalt Rubber utilizing conventional mix design ... Read More

Recycling Crumb Rubber Modified Asphalt Pavements
There has been concern that the legislative mandate to use waste rubber in paving applications will result in a severe environmental problem when it becomes
necessary to recycle these pavements.  If successful recycling is possible, the long-term performance...
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Recycling of Waste Tires in Asphalt Paving Construction
Each year approximately 9 – 10 million waste tires are generated in New Jersey.  Historically, 85% - 90% of these waste tires were going to a combination of landfills,
stockpiles and illegal dumping.  While no data is available on a breakout of the percentages going to landfills as opposed...
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Recycling Plus Ride Paving Mixtures, Ferry Street, Newark, New Jersey
On August 3, 1992, 20% of a Plus Ride mixture #12 was recycled into New Jersey’s standard I-5 surface course mixture.  No modifications where required to the drum
plant and all production procedures were normal for producing...
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Recycling Scrap Tires to Build Artificial Reefs
During the course of the project more than 650 tons of scrap tires were removed from a tire dumpsite in Tabernacle, NJ.  These were recycled into 807 artificial reel
units, which were deployed on two artificial reef sites.  The project demonstrated that current methods...
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Rubberized Rap Recycling, Ferry Street, Newark, NJ
With the incipient Federal regulations mandating the use of ground tire rubber, one of the biggest concerns of the asphalt industry is the recyclability of asphalt
pavements containing ground tire rubber.  Currently, recycling of asphalt pavement is routine in most states.  Recycling is an economically...
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