THE RUBBER PAVEMENTS ASSOCIATION (RPA)
RPA is a 501(c)6, non-profit association. It is the successor of the Asphalt Rubber
Producers Group founded in 1985.The association is dedicated to the promotion of
greater usage of high quality, cost effective asphalt pavements containing
recycled scrap tire rubber. RPA is based in the state of Arizona in the United States
because the most widely used and nationally accepted material containing recycled scrap
tires, Asphalt-Rubber, was Arizona also has asphalt-Rubber pavements that have been in
service for many years.
RPA carries out its mission through technology transfer and maintains the largest library of
Asphalt-Rubber research documents in the world. The main technology transfer activities
include workshops, seminars and conferences, the publication of a weekly e-newsletter and
other informational materials. Since 1997 the association has conducted over 100
workshops for federal, state and local agencies. The association also maintains a website
that has been visited by thousands of individuals, agencies and countries.
The membership of the association is comprised of User (contractors) and Producer
(crumb rubber processors) members as well as non-voting Associate, Affiliate, and
Individual classifications. A Board of Directors, representing its member companies
located throughout the world, governs the association.
The association funds a Technical Advisory Board (TAB), made up of engineers from
governmental agencies, academia and the private sector. George Way, P.E., retired from
the Arizona Department of Transportation, currently chairs the 25 member TAB. The
purpose of the TAB is to provide technical and policy direction to the association. Their
mission statement is: Advance engineering technology and implementation of
Asphalt-Rubber .They have set five goals to accomplish their mission. (1) Provide policy
and technical counsel to the RPA Board of Directors. (2) Provide technical insight and
direction. (3) Assist in establishing technical merits and values of Asphalt-Rubber. (4)
Identify, formulate and monitor research and development activities. (5) Lead development
and delivery of training programs. The TAB is actively engaged with the development of
ASTM and AASHTO standards for Asphalt-Rubber paving materials.
The association is funded by its member companies through assessments on the sale or
purchase of crumb rubber used in asphalt applications. Since 2003, the RPA has
expended substantial monies for research and education. The association has sponsored
several significant research projects. Among the projects: Life Cycle Cost Analysis by Dr.
Gary Hicks, Dr. Jon Epps and Dr. Jim Lundy; Quality Control and Quality Assurance by
Hicks and Epps; Development of a Mechanistic Overlay Design Method Based on
Reflective Cracking Concepts by Dr. Jorge Sousa and Dick Stubstad, Consulpav
International and Field Aging Effects on the Fatigue of Asphalt Concrete and
Asphalt- Rubber Concrete by Dr. Lutfi Raad, University of Alaska. RPA has also
commissioned field performance reviews in the states of Arizona and Texas.
The association partners with many national and international associations such as the
International Tire and Rubber Association, the European Tyre Recycling Association; the
Scrap Tire Management Council; the National Asphalt Paving Association; the Rubberized
Asphalt Concrete Technology Centers in Los Angeles and Sacramento counties,
California; the Asphalt Rubber Training Service at Clemson University, SC and the
University of New Hampshire’s Recycled Materials Resource Center. It also has a number
of agencies and universities as affiliate members. The Universities include Arizona State
University; Clemson University in SC; the University of Denver in Colorado, the University of
Nevada Reno and the University of Veszprem in Hungary.
is a blend of asphalt cement,
certain additives, in which the
rubber component is at least
15% by weight of the total hot
asphalt cement sufficiently to
cause swelling of the rubber
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