MIXED PERFORMANCE OF ASPHALT CONCRETE WEARING COURSE (AC-WC) WITH FINE AGGREGATE SUBSTITUTION SAND FROM THE ISLAND OF BANGKA

• Main Author: TARDENI , ZULHAM
• Format: Theses
• Language: Indonesia
• Online Access: https://digilib.itb.ac.id/gdl/view/31925
• Institution: Institut Teknologi Bandung

<p align="justify">Bangka sand is a natural sand that easily found in many places in the islands of Bangka. The utilization of Bangka sand in road pavement has been applied in road <br /> <br /> improvement and maintenance project in West Bangka Regency in Hot Rolled Sheet (HRS) mix. The use of Hot Rolled Sheet (HRS) needs to be replaced with Asphalt <br /> <br /> <br /> Concrete (AC) because HRS is only used for medium traffic while AC can be used for high traffic. The research is needed for the use of Bangka sand in AC-WC that can replace the use of HRS in the project in West Bangka Regency because the use of sand in Asphalt Concrete (AC) is limited to a maximum of 15% of the total mixture based on the specification Bina Marga 2010 3rd revision. The main purpose of this study is to examined the performance of the Asphalt Concrete Wearing <br /> <br /> <br /> Course (AC-WC) mixture with substitution of Bangka sand on fine aggregates compared to Asphalt Concrete Wearing Course (AC-WC) mixture with aggregates of crushed stone. Characteristics of Bangka sand, aggregate of crushed stone, asphalt, Marshall characteristics of mixed performance and Marshall immersion in test based on the specification Bina Marga 2010 3rd Revision. The percentage of Bangka sand is substituted into fine aggregates in the mixture are 0%, 25%, 50% and 100%. <br /> <br /> <br /> The result of Marshall characteristic test on AC-WC mixture with substitution of Bangka sand on fine aggregate shows that mixture Still meets the performance of Marshall characteristics specified in the 2010 Bina Marga specification 3rd Revision. For the resilient modulus test results with the UMATTA, the AC-WC mixture with the Bangka sand substitution has a larger resilient modulus than the AC-WC mixture of the crushed stone aggregates, although resilient modulus value decreases with increasing substitution of Bangka sand. While on permanent deformation test with WTM, the AC-WC mixture with rock aggregate is stronger in holding deformation because the dynamic stability (DS) value of the mixture is better when compared to the permanent when compared to the mixture with substitution of Bangka sand. <br /> <br /> <br /> The result of mixed test with substitution of Bangka sand up to 100% into fine aggregates produces good Marshall stability and meets the specification so that it can be used to replace the aggregate of stone fragments on the AC-WC mixture.<p align="justify">