DEVELOPMENT OF FLEXIBLE PAVEMENT STRUCTURE USING THE LOCAL MATERIALS OF SARMI, PAPUA, INDONESIA - BASED ON INDONESIAN NATIONAL SPECIFICATION

Abstract

Roads are the important thing in development to open regional isolation, including in Sarmi Regency, Papua Province, which is a new expansion area that promotes infrastructure development, especially roads that require material imported from outside the region and will take time and cost. Therefore, using local natural resources is highly recommended. However, it has not been tested in the laboratory. The condition of the road is not good, because it has been paved although has not reached its design life and it has been damaged. Thus, it is necessary to develop a flexible pavement structure using the Indonesian Specification using local materials. A thin layer of Hot Rolled Sheet (HRS) was chosen because Sarmi has a low traffic volume. This research was conducted at the Laboratory the Regional office of public work at Papua Laboratory and the National laboratory Office at Bandung, Laboratory, consisting of 3 parts, namely Surface Course Testing using Crushed Stone and Iron Sand as local materials from Sarmi Papua Quarry (Sample 1), which were then compared to standard materials from Bandung (Sample 2). The results show that Sample 1 had greater stability, was more elastic, more dynamic, and had better resistance carrying loads compared to Sample 2. From the Base Course Testing, the result of compressive strength was within the requirements, 7% (2,343 MPa > 2 MPa), and from the CBR Subgrade Testing, Soaked CBR = 29,5% > 6%. The test results can be recommended as materials that can be used in Sarmi Regency and surrounding areas