Use of asphalt milling material in construction of the roadway

Abstract

A pilot study on asphalt milling materials as green construction materials to replace virgin aggregates in the roadbase layer for a temporary diversion road at Pan Borneo Highway was conducted by WCT Berhad. Asphalt milling material was milled from the existing road, and various tests were conducted to determine the material characteristics. Based on the laboratory test results obtained, the asphalt milling materials has been used as subgrade for permanent road, the subbase and roadbase for temporary construction access and also the roadbase for temporary diversion road. This paper will discuss on the application of asphalt milling materials in roadbase of temporary diversion road. A 200m Trial section was constructed to obtain performance of milling asphalt materials. The result showed that the temporary road remained in good condition after 30 days of road traffic.