Investigation on Preparation and Performance of Clay-Stabilized Asphalt Emulsinons in Iran

Document Type : Scientific - Research

Abstract

Research show that adding clay to bitumen, improves bitumen performance. But uniformly distribution of clay particles in the molten bitumen is not an easy work. A simple solution for the incorporation of  bitumen and clay particles is making clay-stabilized emulsions. On the other hand, chemical emulsifiers, is very expensive and the ability to make clay-stabilized emulsions in the country, with using domestic mineral resources, will be more and more useful and economical. Primary investigations showed that clay-stabilized emulsions production is mainly possible with using bentonite. In this study, domestic production bentonite was used for making emulsions. Clay-stabilized emulsions successfully produced and Functional tests such as Viscosity, Particle charge, Coating ability and Water resistance were performed on emulsions. Also cold mix asphalt samples was prepared with emulsions and was evaluated with indirect tensile test. The results showed that increasing the percentage of bentonite, improved residue and emulsion properties and increased tensile strength.

Keywords

References

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Quarterly Journal of Transportation Engineering
Volume 5, Issue 3 - Serial Number 3
April 2014
Pages 303-316

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History

  • Receive Date: 09 August 2014
  • Accept Date: 09 August 2014

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