COMPARATIVE ANALYSIS OF THE USE OF BUTON ROCK ASPHALT (BRA B 5/20) IN BANGKA BELITUNG ISLAND WITH GENERAL SPECIFICATIONS 2018 REV.02 (CASE STUDY: ROAD AND BRIDGE PRESERVATION)

Abstract

The condition of the National road performance index of Bangka Belitung Province in 2020 decreased to 97.35% (584.49 km) and unstable conditions to 2.65% (15.9 km in the damaged category). One way to improve the stability of national roads is by preserving roads and bridges, namely Road Rehabilitation. In the road and bridge preservation work, a mixture of hot asphalt and asbuton was used, namely Asphalt Concrete-Wearing Course (AC-WC) with Buton rock asphalt, the type of buton asphalt used in this study is Asphalt pen. 60-70 with Buton Rock Asphalt (BRA B 5/20). This study aimed to determine the comparative analysis of the use of Buton Rock Asphalt (BRA B 5/20) in Bangka Island with General Specifications 2018 Rev.02 (Case Study: Road and Bridge Preservation). This research used literature study method. The result showed the application of the use of Buton Rock Asphalt (BRA B 5/20) in the case study of the road and bridge preservation package following the general specifications of 2018 rev 02. Based on the analysis results from the Marchall test of the JMF (Job Mix Formula) asphalt mixture AC-WC Asbuton, the graphic results showed that 4 (four) points following the General Specifications 2018 Rev.02, namely the average value of marshal stability obtained by 1,252 Kg has met the requirements namely 800 Kg; the average value of the cavity filled with asphalt (%) was 72.55% and has met the requirements, namely at least 65%; the average value of the cavity in the Aggregate (VMA) (%) was 15.61%, has met the requirements, namely at least 15.00%; and the value of the remaining Marshall Stability (%), after immersion for 24 hours, 60 oC obtained 90.16% was following table 6.3.3.1c) Requirements for the properties of mixtures Laston (AC) General Specifications 2018 Rev.02.