Asphalt Rubber Technology Information Center
© 2015 - Rubber Pavements Association (RPA). All rights reserved.
A Computerized Mechanistic System for Evaluation and Rehabilitation of Flexible Pavements
Prior and current investigation into various areas relating to the structural performance of flexible pavements have led to the development of a micro computerized
mechanistic analysis and design system...
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Development of Criteria for Durability of Modified Asphalt - Final Report
A laboratory investigation was conducted to evaluate the effects of a few promising modifiers on the long-term aging characteristics of typical asphalt cements and
asphalt concrete mixtures used in Florida.  The seven...
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Discarded Tires in Highway Construction - Evaluation of Asphalt-Rubber as a Stress Absorbing Interlayer and a Binder
for Seal Coat Construction
In the latter part of 1978, ten experimental sections were constructed in Florida to evaluate the field performance of asphalt-rubber material when... Read More

Documentation of Open-graded, Asphalt-Rubber Friction Course Demonstration Project on Interstate 95, St. Johns County
The asphalt-rubber FC-2 mixture was produced and placed in the I-95 test sections without any major problem.  It can be considered as a successful demonstration
project even though...
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Evaluation of Experimental Asphalt-Rubber, Dense-Graded, Friction Course Mixtures: Materials and Construction of Test
Pavements on N.E. 23rd Avenue, Gainsville, Florida
The Florida legislature passed Senate Bill 1192 that directed the Florida DOT to expand, where feasible, its use of recovered (waste) materials for highway
construction.  Specifically, it directed that an investigation...
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Evaluation of Experimental Asphalt-Rubber, Open-Graded, Friction Course Mixtures: Materials and Construction of Test
Pavements on State Road 16
The Florida legislature passed Senate Bill 1192 that directed the Florida DOT to expand, where feasible, its use of recovered (waste) materials for highway
construction.  Specifically, it directed that an investigation be conducted for the use of ground tire rubber in asphalt concrete...
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Evaluation of Ground Tire Rubber in Asphalt Concrete - Final Report
In 1988, the Florida Legislature passed Senate Bill 1192 which set forth in Section 336.044 of the Florida Statutes a directive to the Florida DOT to expand, where
feasible, its use of recovered (waste) materials for highway construction.  Specifically, the bill directed that an investigation be conducted to determine...
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Executive Summary of Information Compiled from Investigations and Demonstration Projects Pertaining To the Use of
Ground Tire Rubber in Highway Construction
This report provides an overview of all FDOT and University of Florida activities pertaining to the development of CRM in... Read More

Florida’s Approach Using Ground Tire Rubber in Asphalt Concrete Mixtures
In 1988, under a legislative mandate, the Florida Department of Transportation (FDOT) began a concentrated effort to evaluate the potential uses for reclaimed tire
rubber in asphalt pavement construction.  The approach taken by FDOT in this evaluation was to consider...
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Florida’s Experience in Hot Mix Asphalt Concrete
Our experience to date has shown that a high-quality pavement can be constructed incorporating salvaged asphalt materials, provided sound engineering principles
are applied.  Included in this report is key points related to the use of the hot mix...
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Florida’s Initial Experience Utilizing Ground Tire Rubber in Asphalt Concrete Mixes
Based upon available preliminary information, FDOT has constructed two initial demonstration projects to evaluate the constructability and short term field performance
of various percentages of finely ground tire rubber in plant...
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Improvement of Asphalt Mix Design to Prevent Rutting
Crushed stone aggregates and a natural sand were used to prepare different aggregate gradations for FDOT Structural Asphalt Mixtures.   Each gradation was
modified by altering the mineral filler content and substitution of up to 20 percent natural...
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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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Investigation and Evaluation of Ground Tire Rubber in Hot Mix Asphalt
The bulk of this report is a state of the art review of asphalt hot mix in which the binder is asphalt rubber or in which rubber has been added as an aggregate.  In each
section of the report, the existing literature is reviewed and recommendations...
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Larger Local Government: Computerized Pavement Management System
The primary objective of this paper is to highlight the elements in the City of Tampa’s implementation and use of computerized systems to... Read More

Occupational Exposure Assessment of Ground Tire Rubber, Blending, Mixing, and Paving Operations, Volume I
This report presents the results of an occupational exposure assessment of asphalt fume and chemical constituents during blending, mixing, and paving operations that
featured the use of ground tire rubber (GTR)/asphalt and conventional asphalt materials.  The state of...
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Occupational Exposure Assessment of Ground Tire Rubber/Asphalt Blending, Mixing and Paving Operations, Draft
Protocol
A protocol for health hazards of asphalt-rubber is proposed and includes minutes of a meeting where the protocol was discussed.  Testing in Florida will compare
emissions for terminal, mix plant, and paving site will be monitored.  Exposures to the following emission components will be...
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Pavement Inventories
This presentation is an overview of roadway and street inventories as related to pavement management and... Read More
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