| Report No. | ARP4 (jot this number down to order) |
| Title | Effects of Rubber on Asphalt Mixes |
| Authors | Gowda, G.V.; Elliott, Robert & Hall, Kevin, University of Arkansas |
| Publisher | US DOT |
| Pub. Date | January, 1997 |
| Pages | 254 pages |
| Keywords | Asphalt-Rubber mixes, crumb rubber modifier |
| Description | This project was conducted to develop an understanding of the behavior of asphalt concrete mixes that incorporate ground scrap tire rubber. The project focused primarily on the behavior and performance of a mix that was to be placed as an overlay on a portion of Interstate 40 near Russellville, AR. That mix incorporated a finely ground rubber as a portion of the aggregate. This process of adding rubber is referred to as a dry process in contrast with processes in which the rubber is blended wet with the asphalt cement. The study found that the dry process as used on the I-40 project was not beneficial to the mix and in fact appeared to be detrimental. Limited testing was performed as an evaluation of the wet process. This testing showed that the wet process addition of rubber can be beneficial. However, the results are not sufficient to determine whether or not the benefit justifies the additional costs. |
| Postage | $ 18.00 : U.S. $ 18.40 : Canada/Mexico $ 18.80 : Rest of the World |
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