Asphalt Rubber Technology Information Center
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Asphalt-Rubber Concrete (ARC) and Rubber Modified Asphalt Concrete (METRO RUMAC) Evaluation (NE 181st Ave. –
Troutdale Section Columbia River Highway)
This report covers the construction of two test pavements using asphalt concrete modified with tire rubber in September, 1991.  The pavements are on a overlay of
heavily traveled freeway in the Portland...
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Crumb Rubber Modified Asphalt Concrete in Oregon, Summary Report
Over the last nine years, the Oregon DOT has constructed 13 projects using crumb rubber modifiers in asphalt concrete pavements using both the wet and dry
process.  Three of the projects included more than one type of crumb rubber modifier.  All projects included a control section.  Research...
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Crumb Rubber Modified Asphalt Concrete in Oregon, Summary Report
Over the last nine years, the Oregon DOT has constructed 13 projects using crumb rubber modifiers in asphalt concrete pavements using both the wet and dry
process.  Three of the projects included more than one type of crumb rubber modifier.  All projects included a control section.  Research...
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Development of Improved Mix and Construction Guidelines for Rubber Modified Asphalt Pavements
The purpose of this paper is to evaluate the use of one type of rubber-modified asphalt paving mixture in road construction.  Moreover, it is to develop guidelines
indicating how these mixes can best be utilized in the U.S. road...
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Evaluation of Asphalt Additives: Lava Butte To Fremont Highway Junction - Final Report
This report covers four year’s performance of tem test sections using dense-graded hot mix asphalt concrete with these additives: Plus Ride mix containing granulated
tire rubber, Arm-R-Shield modified asphalt containing ground and dissolved...
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Evaluation of Asphalt Additives: Lava Butte To Fremont Highway Junction - Interim Report
This report summarizes the design, construction, and initial performance phases of an asphalt concrete pavement test project concerned with the evaluation of asphalt
additives.  The project consisted of ten test sections, including rubber modified asphalt concrete, fiber reinforced asphalt...
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Evaluation of Rubber-Asphalt Chip Seals in Oregon - Final Report
In 1976 three test areas were selected to evaluate the performance of asphalt-rubber chip seals constructed over different pavement conditions (low volume oil mat,
high volume AC overlay, concrete bridge deck membrane).  Control sections consisting of conventional ODOT 0-31 chip seals were placed...
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Evaluation of Rubber-Asphalt Chip Seals in Oregon - Interim Report
In 1976 three test areas were selected to evaluate the performance of asphalt-rubber chip seals constructed over different pavement conditions (low volume oil mat,
high volume AC overlay, concrete bridge deck membrane).  Control sections consisting of conventional ODOT 0-31 chip seals...
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Evaluation of Two Rubber Modified Asphalt Pavements Constructed in Benton County, OR
A rubber-modified asphalt mixture using granulated and graded crumb rubber was developed in Sweden in the 1960’s.  This product has been used in the United States
since the 1970’s.  The mixture is intended to provide a surface wearing course with improved...
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Existing and Evolving Methods of Materials Evaluation for Waste-Modified Asphalt Mixtures
A continued increase in the use of waste materials in highway construction appears inevitable.  The incorporation of waste and/or by-products in asphalt concrete
mixtures has resulted in many successes and some costly failures.  Traditional asphalt mixture design...
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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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Rubber Modified Asphalt Concrete (METRO RUMAC) Evaluation
Report on the construction and initial performance of two dense graded Rubber Modified Asphalt Concrete (RUMAC) test sections constructed in different
environmental regions of Oregon.  Conventional dense graded...
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Rubber Modified Asphalt Concrete (Metro RUMAC) Evaluation of Lakeview Junction and Pacific Highway
This report covers the construction in 1992 of test sections on two projects asphalt concrete modified with tire rubber.  One project’s test sections are part of a single lift
overlay on a lightly traveled two-lane road south of Klamath Falls, Oregon.  The other project’s test sections are part of the base...
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Rubber Modified Asphalt Concrete (Metro RUMAC) Evaluation of N. Marine Drive and S.E. Stark Street
This report covers the construction in 1991 of two test pavements using asphalt concrete modified with crumb rubber from scrap tires.  The pavements are on arterial
roadways in the Portland, Oregon...
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Rubber Modified Asphalt Concrete In Oregon
Report on the construction, materials properties and initial performance of a dense graded rubber modified asphalt concrete (RUMAC – dry process) and an open
graded asphalt rubber concrete (ARC – wet process).  Standard dense...
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Stress Absorbing Membrane Interlayer
Final report on the five year performance of an asphalt-rubber interlayer placed in I-84 near Baker, OR.  Although the pavement did not perform as well as expected,
the analysis of the interlayer performance was complicated by...
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Thermal Cracking Resistance of Rubber Modified Pavements Evaluated with the Thermal Stress Restrained Specimen
Test
A total of 32 prismatic specimens were submitted to Oregon State University for consideration under the test program.  The specimens... Read More
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