THE EFFECT OF FINE AGGREGATE CONTENT ANALYSIS FROM RECLAIMED ASPHALT PAVEMENT ON MIXED PERFORMANCE OF HOTMIX ASPHALTIC CONCRETE BINDER COURSES (AC – BC) RECYCLED

• Main Author: Wanudyaningrum, Andini
• Format: Theses
• Language: Indonesia
• Online Access: https://digilib.itb.ac.id/gdl/view/35836
• Institution: Institut Teknologi Bandung

The road today needs innovations in terms of maintenance method. By the criteria should be economically and environmentally friendly, because the road quality is getting worse after the repeated volume of traffic on daily basis. Reducing the needs of additional layer (overlay), the road should maintain the geometric condition. By reusing old pavement material, with recycling technology or Reclaimed Asphalt Pavement (RAP), should overcome the dependence of new materials. The stripped material is obtained from three different Toll Road locations, those are Cawang-Tj.Priok Toll Road, Cikopo-Palimanan Toll Road and Wiyoto Wiyono Toll Road. The mixture of RAP is asphaltic concrete binder courses (ACBC) with a proportion of 30% stripped material and 70% addition of new material, and using material that can rejuvenate the old bitumen such as reclamite. This mixture will be tested using the Marshall test, Resilient Modulus by UMATTA and fatigue resistance test by the four points loading controlled strain method. The fine aggregate gradation content after the extraction process on each stripped mixture material are varying according to their characteristics, which will continue to affect the performance hotmix RAP AC-BC. Overall, the RAP C2 mixture gives the opposite result of the RAP C1 mixture because it contains the least amount of fine aggregate. In the RAP C3 mixture, the results are not so different with C1. Therefore, it will be considered to be one material group, which is C1,3. A mixture of C1,3 is better to be used for AC-BC layers above the granular base layer because the cycle of fatigue failure is longer. Whereas, C2 mixture is better to be used for AC-BC layer above a bituminous layer base because the RAP mixture from C2 has better stiffness than other mixtures.