A Study on the Use of RAP and Sugarcane Bagasse Ash in GSB
Keywords:
California bearing ratio (CBR); Modified proctor test; Granular sub base (GSB); Reclaimed asphalt pavement (RAP); Sugarcane bagasse ash (SCBA)Abstract
This paper presents the study on the use of RAP and Sugarcane Bagasse Ash in GSB. The study has been done to check the suitability of waste materials in road construction. This will help in getting the economy in road construction as well as saving the environment degradation in terms of reduction in mining and less air pollution. Construction of roads and highways involve huge amount of money and materials, mainly with the use of aggregates. As millions tones of fresh aggregates are used in road construction and considering their scarcity, replacement of part of the fresh aggregate with reclaimed asphalt pavement (RAP) and sugarcane bagasse ash (SCBA) is considered in the present study. The present study discusses the suitability and applicability of RAP and SCBA when used in blends
with fresh aggregates for road construction. Performance of these blend are measured by performing various laboratory tests such as compaction test and California Bearing Ratio (CBR) on Granular Sub Base (GSB). The test results indicate that virgin aggregate can be replaced by RAP and SCBA and provided satisfactory geotechnical results to be used in GSB.
