INFLUENCE OF MIX PROPERTIES ON THE PERMANENT DEFORMATION CHARACTERISTICS OF BITUMINOUS MIXTURES

B.Bala Subrahmanyam, P.Gopi, M.Balraj Naik

Abstract: India is one of the countries having the largest road network where majority of the roads are paved with bitumen-based macadamized roads with a thin bituminous surfacing or a premix carpet as a wearing course. Bituminous roads are mainly composed of naturally available aggregates and hot bitumen/asphalt. In these bituminous pavements Permanent deformation is one of the main failure modes in pavement structures subjected to mechanical loading. Load acting by the vehicle wheel on the pavement of a road result in permanent deformation. Permanent deformations, primarily in the form of ruts in the form of corrugations, tracks, imprints, and shoving are one of the basic asphalt pavement damages impairing its service properties. Ruts may cause vehicles to skid during rains in that case they are more dangerous than the listed above. So as to increase the pavement performance there is a need to increase the quality of pavement in the present study an attempt has been made to evaluate the permanent deformation characteristics of a bitumen mixture with different mix proportions. Wheel tracking testing equipment used to evaluate the rutting performance of bituminous mixtures. By the data of wheel tracking testing can identify the pavement performance and to improve the quality of a road. By developing a model can understand the performance of VG30 bitumen under different temperature conditions.

Keywords: Permanent Deformation, Bituminous Mix Influence, Rutting Characteristics, Rutting Model By Regression Analysis Etc...

DOI: https://doi.org/10.15623/ijret.2016.0508034