Asphalt Rubber Technology Information Center
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Asphalt Rubber Concrete Test Section, Route I-70, Boone County – First Annual Report
A wet process asphalt rubber concrete (ARC) and control section is evaluated after the first year of service.  Friction values are lower for the ARC than control.  
Deflective cracks in the ARC section appear to be healing better...
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Asphalt Rubber Concrete Test Section, Route I-70, Boone County – Interim Report
With the rapid growth of the City of Phoenix, islands of non-paved streets developed causing dust and  bottlenecks that had to be paved.  These were low-volume
streets with not willing property owners to pay for the cost of construction.  Alternate...
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Asphalt Rubber Concrete Test Section, Route I-70, Boone County – Second Annual Report
A wet process asphalt rubber concrete (RAC) and control section is evaluated after two years of service.  Reflective cracks, rutting, and rideability are the same for both
sections.  The control section has higher friction ratings than the ARC but the decrease...
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Asphalt Rubber Concrete, Route 71, Cass County – Construction Phase Report
1¼ inches of type I-CR wet process asphalt rubber concrete overlaid over pcc was placed as an experiment.  Distress in the form of cracking and pumping of fires was
determined to be caused by water trapped under the pavement...
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Asphalt Rubber Concrete, Route 71, Cass County – First Annual Report
1¼ inches of type I-CR wet process asphalt rubber concrete overlaid over pcc was placed as an experiment.  Isolated areas of rutting, reflective cracking, and several
patches are experienced, probably due to water trapped below the pavement.  Edge drains...
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Asphalt Rubber Concrete, Route 71, Cass County – Second Annual Report
1¼ inches of type I-CR wet process asphalt rubber concrete overlaid over pcc was placed as an experiment.  Isolated areas of rutting, reflective cracking, and several
patches are experienced, probably due to water trapped below...
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Asphalt Rubber-Three Layer System Test Section, First Annual Report
A portland cement concrete pavement was overlaid with a three-layer system consisting of ¾ inch of gap graded mix with asphalt-rubber over the concrete following with
a ½ inch SAMI.  Surface is one inch of open graded friction course with an...
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Asphalt Rubber-Three Layer System Test Section, Second Annual Report
A portland cement concrete pavement was overlaid with a three-layer system consisting of ¾ inch of gap graded mix with asphalt-rubber over the concrete followed with
a ½ inch SAMI.  Surface is one inch of open graded friction course with an asphalt-rubber binder.  The test section is to be maintained...
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Dynamic Analysis of Asphaltic-Aggregate Mixtures
Ultrasonic probes have been constructed for use in dynamic nondestructive testing of asphaltic concrete specimens.  Use of the probe systems was superior to use of
their main components alone, the piezoelectric crystals.  The probes have the advantages of reducing ringing time, concentrating...
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Route I-44, Phelps County – Construction Phase Report
Four test sections including type I polymer (SBS), type II polymer (SBR), type II or II ground rubber (course), and type four ground rubber (fine).  Wet process was used
for the asphalt-rubber sections.  A section of type IC asphaltic concrete was also placed.  Sections...
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Rubber Modified Asphalt Concrete, Route I-44, Laclede County – Construction Phase Report
Test sections are overlays over pcc and consist of three inches of type I-B asphaltic concrete binder courses with two inches of rubber modified asphalt concrete
(RMAC) surface with the dry process.  A section of the project used 1 ¼ inches of type I-C asphaltic concrete binder course...
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Use of Asphalt Rubber for Crack Sealing in Asphalt Concrete Pavements and For Joint Sealing In Portland Cement
Concrete Pavements, The
Crack sealing in asphalt concrete pavements is thought by many to be an ineffective, low-priority pavement maintenance task which is performed only after other
pavement maintenance activities, such as overlays, seal coats and fog seals are completed and only if time, budget and manpower are...
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