Use of Reclaimed Asphalt Pavement (RAP) in Concrete in Perspective of Rigid Pavements

Document Type : Research Papers

Authors

1 M.Sc., Civil Engineering Department, University of Engineering and Technology, Peshawar, Pakistan.

2 M.Sc., Department of Civil Engineering, Faculty of Engineering and Technology, International Islamic University Islamabad, Pakistan.

3 Ph.D. Candidate, Department of Civil Engineering, Faculty of Engineering and Technology, International Islamic University Islamabad, Pakistan.

4 Ph.D., Instructor, Department of Civil Engineering, Faculty of Engineering and Technology, International Islamic University Islamabad, Pakistan.

5 Professor, Department of Civil Engineering, Faculty of Engineering and Technology, International Islamic University Islamabad, Pakistan.

Abstract

The demolishing of roads for repair and reconstruction produces an ample amount of Recycled Asphalt Pavement (RAP) which, if not utilized, may cause depletion of aggregate sources and pollution. The use of RAP in the plain cement concrete (PCC) is sustainable use of road waste material. However, the potential of incorporating RAP to replace natural aggregate needs to evaluate. This research targets the evaluation of mechanical properties of PCC made with extracted RAP materials through laboratory experiments and to achieve the optimized replacement of natural aggregate for rigid pavement composite design. The Virgin Coarse Aggregate (VCA) in PCC was replaced with RAP at 0:25:100 percent by weight. Results show that incorporating RAP in PCC causes a gradual decrease in mechanical properties. However, the decrease in compressive strength is more (57%) than the flexural and splitting tensile strength. RAP up to 25% was found as an optimum allowable replacement with VCA in the rigid pavement. From the Modulus Of Elasticity (MOE), it was detected that with the incorporation of RAP the ductility of PCC improved slightly.

Keywords

References

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Civil Engineering Infrastructures Journal
Volume 56, Issue 2
December 2023
Pages 381-392

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History

  • Receive Date: 06 July 2022
  • Revise Date: 14 November 2022
  • Accept Date: 26 November 2022

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