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Laboratory Investigation of Warm Mix Asphalt with the Inclusion of Recycled Aggregate

K. Naresh*, A. Ramesh**, M. Kumar***

* PG Student, Department of Civil Engineering, VNR Vignana Jyothi Institute of Engineering and Technology, Telangana, India.

** Associate Professor, Department of Civil Engineering, VNR Vignana Jyothi Institute of Engineering and Technology, Telangana, India.

*** Professor & Head, Department of Civil Engineering, University College of Engineering, Osmania University, Telangana, India.

Periodicity:December - February'2015
DOI : https://doi.org/10.26634/jce.5.1.3136

Abstract

Pavement construction evolves with the use of large quantities of natural aggregates (NA). The bulk use of natural aggregates in pavement layers is a disturbing situation and is resulting in demolishing of natural resources. In flexible pavements, hot mix asphalt is used for construction of surface and binder course layers. The hot mix asphalt when prepared at mixing temperature, releases harmful gases and pollutes the environment. Several techniques have been developed to reduce the mixing and compaction temperatures of hot mix asphalt. One of the technologies is named as Warm Mix Asphalt (WMA). WMA mixes contribute cost savings in operation of bitumen plants through reduction of energy costs. Warm mixes also allow articulated vehicle of asphalt loads for longer distances, without any delay and significant loss in temperature. In this context, an attempt is made in the laboratory for appreciating the influence of recycle aggregates (RA) on characteristics of warm mix asphalt. Performance characteristics were evaluated through Satiability and Indirect Tensile Strength (IDT). Recycled aggregate was added proportionately at 10%, 15% and 20% of virgin warm mix asphalt. It was observed that stability values are higher for WMA of recycled aggregate as compared with traditional asphalt mix. 15%RA has exhibited improved characteristics than when compared with the other two percentages of recycled aggregates.

Keywords

Recycled Aggregate, Sasobit, Marshall, In-direct Tensile Strength Test.

How to Cite this Article?

Naresh.K., Ramesh.A., and Kumar.M. (2015). Laboratory Investigation of Warm Mix Asphalt with the Inclusion of Recycled Aggregate. i-manager’s Journal on Civil Engineering, 5(1), 1-8. https://doi.org/10.26634/jce.5.1.3136

References

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Laboratory Investigation of Warm Mix Asphalt with the Inclusion of Recycled Aggregate

Abstract

Keywords

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References

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