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Journal : Sustainable Civil Building Management and Engineering Journal

The Effect of Adding Fly Ash as a Filler on Lataston Mixtures (HRS-WC) Purnomo, Farid Eko; Sholichin, Ibnu; Estikhamah, Fithri
Sustainable Civil Building Management and Engineering Journal Vol. 1 No. 3 (2024): July
Publisher : Indonesian Journal Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47134/scbmej.v1i3.2797

Abstract

Flexible pavement is the most commonly found type of road pavement in Indonesia. One asphalt mixture used in road construction is the Lataston Hot Rolled Sheet. The quality of road pavement can be enhanced by carefully selecting materials such as asphalt, aggregate, and filler. Filler plays a crucial role in asphalt pavement mixtures, and fly ash, containing pozzolanic elements, can be used as it fills voids and binds the mixture effectively. This research investigates the use of fly ash as a filler in the HRS-WC asphalt mixture, aiming to determine the optimum asphalt content, the best filler content, and the impact of fly ash as a filler on the performance of asphalt road materials in the Lataston Hot Rolled Sheet mixture (HRS-WC). The study employs the Marshall testing method in accordance with the 2018 General Bina Marga Specifications (Revision 2) The results of research on Marshall characteristics, obtained an optimum asphalt content value of 7.5% and an optimum filler content value of 1.35%. The addition of fly ash as a filler to the HRS-WC asphalt mixture increases the stability, durability and stiffness of the mixture by filling empty spaces, increasing density, reducing air voids and binding the asphalt mixture. However, excessive use of fly ash can make the mixture too stiff and reduce the flexibility of the pavement.
The Effect of Anti-Stripping Agent Addition on the Performance of Asphalt Concrete-Wearing Course (AC-WC) Mixture with Madura Local Aggregate Nur, Muhammad; Sholichin, Ibnu; Alfiansyah, Achmad
Sustainable Civil Building Management and Engineering Journal Vol. 2 No. 4 (2025): October
Publisher : Indonesian Journal Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47134/scbmej.v2i4.5134

Abstract

This study investigates the use of the Morlife 300 anti-stripping agent to improve the performance of Asphalt Concrete–Wearing Course (AC-WC) mixtures incorporating local aggregates from Madura Island, Indonesia. The objective of this research is to determine the Marshall characteristics of the mixture and to identify both the optimum asphalt content and the optimum anti-stripping dosage based on the 2018 Bina Marga Specifications (Revision 2). Laboratory testing was conducted using asphalt contents of 5%, 6%, and 7%, resulting in an optimum asphalt content of 5.2%, while additive variations of 0%, 0.1%, 0.3%, and 0.5% were used for performance evaluation. The results show that the incorporation of Morlife 300 enhances mixture performance, as indicated by decreasing Air Voids and Voids in Mineral Aggregate and increasing Voids Filled with Asphalt, along with improved stability and Marshall Quotient values. Compared to the mixture without additive, the use of  0.3% Morlife 300 increases stability by 30.57% and the Marshall Quotient by 29.38%, marking this dosage as the optimum level among all variations tested. Overall, the use of the Morlife 300 anti-stripping agent is proven to improve the volumetric and mechanical performance of AC-WC mixtures.