Asphalt Rubber Technology Information Center
© 2015 - Rubber Pavements Association (RPA). All rights reserved.
1988 Report on Bridge Deck Waterproofing
In 1988, the Ministry of Transportation monitored the thickness of waterproofing membrane placed on bridges under its authority, as well as the quality of the membrane.
Membrane thickness is controlled by an end result specification (ERS) ...
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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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A Concept of Preengineered, Prefabricated, Prestressed Modular and Multimodular Sealing Systems for Modern Bridges
and Structures
Single module, modular, and multimodular sealing systems appear to offer long-term, maintenance-free solutions to newly developing problems at bridge joints being
brought about by new design sophistication.  The need for armored joints and their damping effect together with improved...
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A Feasibility Study of the Use of Waste Tires in Asphaltic Concrete Mixtures - Final Report
This research study was undertaken to investigate the feasibility of the use of tires in asphaltic concrete mixtures.  The findings of the literature review, results of
questionnaire, and interviews of experts are summarized...
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A Five-Year Evaluation of Arizona’s Three Layer System on the Durango Curve in Phoenix
The Maricopa and Black Canyon Freeways in the City of Phoenix have been in service for about twenty-two years and are carrying a considerable amount of traffic.  
This section of freeway (16th Street to Buckeye Road) is plain concrete pavement with aggregate interlock load...
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A Guide to the Long Term Pavement Performance Experiments in Arizona
The Long-Term Pavement Performance (LTPP) studies of the Strategic Highway Research Program (SHRP) address the need for improved technology for pavement
design, construction, maintenance, and rehabilitation.  The LTPP experiments are classified into two groups: General Pavement...
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A Laboratory Evaluation of Rubber-Asphalt Paving Mixtures
Asphalts modified with different rubbers, including devulcanized CRM and other synthetic rubbers, were evaluated in the laboratory with respect to their physical
characteristics.  The data would seem to indicate that an acceptable cement...
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A Laboratory Evaluation on the Effects of Ground Tire Rubber on Strength Performance of Concrete
This research provides a laboratory evaluation of the effects of adding ground tire rubber on the performance of concrete.  The underlying objective of this
investigation is to assess the possibility of partially substituting the fine aggregate with ground tire rubber particles...
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A Manual on the Use of Lightweight Aggregate in Flexible Pavement Systems
This manual has been prepared for use as a guide for lightweight aggregate producers who are interested in the use of their products in the field of flexible pavements.  
It should also be useful to contractors who may be using lightweight aggregates for the first...
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A National Overview - The Use of Discarded Materials and By-Products in Hot Mix Asphalt Concrete Pavements
The objective of this paper was to research and investigate the potential specific disposal of waste materials by usage in Hot Mix Asphalt Concrete (HMAC) pavements.  
The particular purpose of this effort was to establish the current nationwide position of all of the fifty...
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A Package of Standard Specifications Stored Specifications and Mix Design for Asphalt Rubber Asphaltic Concrete (AR-
AC) and Asphalt Rubber Asphaltic Concrete Friction Course (AR-ACFC)
No Summary Available

A Review of Crumb-Rubber Modified Asphalt Concrete Technology
This study presents an analysis of the characteristics of crumb-rubber modified asphalt pavements.  It is comprised of a state of the art literature review and laboratory
testing conducted with a Brookfield viscometer.  The reaction that occurs...
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A Review of the Road Performance of A Modified Binder in Southern Africa Over A Six-Year Period
Arm-R-Shield bitumen-rubber was first introduced to South Africa in late 1982.  This concept was radical in respect of the type of product, its manufacture and the very
high application rates at which it was spray applied.  Technical as well as application data from the USA was based on empirical...
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A Review of the Road Performance of Bitumen-Rubber in South and Southern Africa
This paper will review the experience gained from the use of bitumen (asphalt)-rubber I South Africa and states in Southern Africa (Swaziland and Botswana) over a 5 -
7 year period.  The Arm-R-Shield of Arizona Refining of Phoenix, Arizona was first introduced to South Africa in October 1982, followed...
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A Revolution in Asphalt-Rubber Binders: Flexochape Storable Binder
The discovery of storable FLEXOCHAPE binder is particularly important for the development of asphalt rubber concrete (ARC).  They provide... Read More

A Study of Flexible Pavement with RAMFLEX Rubber Additives
In April 1968, U.S. Rubber Reclaiming Company contacted the Mississippi State Highway Dept in the interest of experimenting with the use of a rubber additive, known
as Ramflex.  Ramflex is a powered reclaimator produced rubber specially devulcanized in less than five minutes...
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A Study of Flexural Fatigue Behavior of Asphalt-Rubber Mixes
The objective of this study is to evaluate the fatigue behavior of crumb-rubber modified asphalt.  The research involved flexural fatigue testing of beams made with hot-
mix asphalt rubber using the wet process where the crumb rubber reacted with the asphalt at high temperature.  Two types of asphalt-rubber were...
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A Study of the Use of Recycled Paving Material: Report to Congress, June 1993
The highway construction industry has a long history of using recycled products for highway construction.  This report summarizes some of the industries’ experiences
and, where sufficient information exists, it provides documentation regarding the economic savings, technical...
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A Twenty-Year Study of Asphalt Rubber Pavements in the City of Phoenix, Arizona
The details of Asphalt-Rubber application on city streets, pioneered by the City of Phoenix since mid 1960, are outlined.  There were some problems encountered in the
early use of this materials and they...
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Accelerated Pavement Testing of Rutting Performance of Two Caltrans Overlay Strategies
This paper contains results of accelerated pavement tests at elevated temperatures on dense graded asphalt concrete and gap-graded asphalt rubber hot mix.  The
APT testing was performed using a Caltrans Heavy vehicle Simulators.  The overlays were placed on preciously untrafficked sections of an existing...
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