• Shankaregowda
• C G Adarsh Gowda
• B M Harish Gowda
• Bharath U Agadi
• S Pavana

Due to awareness to greener environment, use of reclaimed asphalt material has become popular in asphalt pavement industry. The use of Reclaimed Asphalt Pavement (RAP) materials in sub-grade soil can be an additional scope of utilizing RAP. This study investigates the effect of RAP on the Resilience Modulus (MR) of subgrade soil. Resilience Modulus is the ratio of deviator stress to the resilient strain.This paper presents the basic properties of subgrade soil and the reclaimed asphalt pavement. For the subgrade soil standard proctor test was conducted to determine the Optimum Moisture Content (OMC). Further, laboratory triaxial test was conducted for the soil sample without adding RAP at OMC obtained from standard proctor test. Also, triaxial test was conducted for same subgrade soil by adding varied percentage of RAP at OMC of subgrade soil. Then, the MR of these subgrade soil without RAP and soil with RAP were determined as per AASHTO T 307 (1999) guidelines for constant confining pressure. Result shows that the MR of RAP mixed with subgrade soil increases at OMC of soil at certain percentage. The MR values of RAP mixed subgrade soil, as determined by the current study, can be used for subgrade design and stabilization using RAP for better pavement design.

Reclaimed Asphalt Pavement, Resilience Modulus, Deviator Stress, Resilient Strain

"Study on Effect of Reclaimed Asphalt Pavement on Resilience Modulus of Subgrade", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.6, Issue 5, page no.466-471, May-2019, Available :http://www.jetir.org/papers/JETIR1905I70.pdf

"Study on Effect of Reclaimed Asphalt Pavement on Resilience Modulus of Subgrade", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.6, Issue 5, page no. pp466-471, May-2019, Available at : http://www.jetir.org/papers/JETIR1905I70.pdf