The Effect of Latex on Permanent Deformation of Asphalt Concrete Wearing Course

Pavement rutting is primarily caused by the accumulation of permanent deformation in a portion or in all of the pavement layers. The accumulation of permanent deformation in surface layers is now considered to be the major caused for rutting. This requires solutions, one of which is to formulate an asphalt mix that has a high resistance to deformation, and one way to do this is to use latex as an additive. Thus, the purpose of this experimental study was to investigate the effect of latex in preventing deformation of the asphalt concrete wearing courses (ACWC). Four different latex to asphalt mixtures were investigated, namely 0%, 2%, 4% and 6% latex by weight of asphalt binder respectively. A wet process was used in the mixture blending. Specimens were tested in a wheel tracking machine at a temperature of 60°C. The results indicated that latex decreased the rate of deformation in asphalt mixtures by increasing its dynamic stability.

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  • English

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  • Accession Number: 01634547
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Mar 29 2017 1:53PM