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Professor and Researcher at the
School of Civil Engineering of the UMSNH


Jorge Alarcón Ibarra
He studied Civil Engineering at ITESO, obtaining the best average of his generation and graduating with Honorable Mention in April 1997.

He was Central Supervisor of CAPUFE being in charge of works such as lane widening, highway construction, slope stability, pavement rehabilitation, bridge rehabilitation, among others.

He obtained his Diploma of Advanced Studies in Transportation Infrastructure and Territory and later a PhD in Civil Engineering at the Polytechnic University of Catalonia in Barcelona, Spain, graduating in January 2003 with the qualification of Outstanding Cum Laude.

He is a Full Time Professor and Researcher at the Civil Engineering Faculty of the UMSNH since 2003.

He has given more than 150 courses in different cities of the country, in Central and South America on topics related to the design, construction and maintenance of pavements, asphalt mixtures and asphalt products in several Universities, National Associations, Engineering Colleges, in the SCT, among others.

He has participated as a speaker throughout the country and has presented papers and papers at conferences and seminars in the United States, Mexico, Costa Rica, Cuba, Portugal, Ecuador, Peru, Spain and Brazil.

He has been awarded national prizes for published articles and directed theses.

He has published several articles in national and international journals and has published a book on asphalt pavement recycling and one on the history of asphalt mixtures in Mexico.

He has participated in the development of several regulations, such is the case of the Spanish Standard for Asphalt Pavement Recycling and the AMAAC Protocols and Recommendations for the design of Asphalt Mixtures in Mexico.


"Mexican experience in the use of RARX
predigested rubber in asphalt mixtures

Two main techniques for incorporating rubber into an asphalt mix are commonly known. The first is by the wet route, where the rubber acts as a modifier of the asphalt, and the second is by the dry route, where the rubber acts as a replacement for a percentage of the stone aggregate. In general terms, both methodologies have shown good results from the point of view of fatigue and permanent deformation in the mixtures, in addition to helping at the same time to reduce the contamination caused by tire dumps that have reached the end of their useful life ; however, they have had drawbacks such as the need for special equipment and high mixing temperatures and long rubber digestion times. This has contributed to a stagnation in the implementation of these alternatives in a practical way. Against this background, a new methodology called Reacted and Activated Rubber (RAR) has been developed. The RAR (known industrially as “RARX”) owes its name to the fact that the rubber has undergone digestion and previous treatment, which allows it to be introduced into the asphalt mixing process as if it were just another aggregate, without the need for another additional procedure. Therefore, it solves a large part of the difficulties of the aforementioned processes, without losing the advantages of the addition of rubber in asphalt mixtures.

In Mexico there are test sections of asphalt mixes modified with RARX, but there are no extensive studies that verify the benefits of their use from a mechanical, life cycle and reduction in CO2 emissions point of view. To make the investment in this type of mixtures viable, it must be sustained that the increase in the cost of the mixture will be reflected in a longer useful life compared to conventional mixtures, to corroborate that the mixtures with RARX will last longer, it is necessary to made from laboratory studies that verify the increase in performance through rheological, fatigue, crack propagation and permanent deformation tests.

The present work shows the results of the tests carried out in Mexico, to different asphalt mixes modified with RARX in different projects, which allows to demonstrate the benefits of its use from different points of view.

Opportunities to promote your
business at the Exhibition

RAR2022 Sponsorchip

Please download the file for more information



Kevin Trenberth
National Center for Atmospheric Research (NCAR)
Kevin E. Trenberth
John Harvey

Professor John Harvey, Ph.D., P.E
Department of Civil and Environmental Engineering, University of California Davis, USA

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Peter E. Sebaaly, PhD, PE
Director of Pavement Engineering
& Science Program, 
University of Nevada, USA

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Peter E. Sebaaly, PhD, PE
Jose Ramon Marcobal

Director LEMaC, Road Research Center,
National Technological University of La Plata

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Kamil Elias Kaloush, Ph.D., P.E
FORTA Professor of Pavement Engineering, 
Arizona State University, USA

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Kamil Kaloush
Jose Ramon Marcobal

Jose Ramon Marcobal, Ph.D.
Pavement Department Director SACYR, SPAIN

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Title of the 55 abstracts we got so far
Checkout the list here
(We present, for now, only the titles of the abstracts presented. We will add the names of the authors once the papers are accepted)
Conference General Scope

RAR2022 will focus on any and all rubberized asphalt materials containing scrap tire rubber, from a low percentage such as 5 percent to higher percentages above even 24 percent. Since there have been so many recent significant changes in the testing, specifying and application of scrap tire rubber in asphalt this Conferences focus is literally on all types of asphalt binders or asphalt hot mixes containing any percentage of scrap tire rubber, as well as both wet and dry applications. In addition both generic and proprietary rubberized asphalt products can be reported. Case studies, environmental effects and benefits, cost effectiveness of many paving construction materials and techniques will be presented.

Paper SHOP

When appropriate technical trips are arranged to particular important project or construction sites or plants.

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Kamil Kaloush
Made by Fernanda Barros @consulpav
January 2022