Contact angle modification in optimising adhesion performance of bitumen binder in stone mastic asphalt mixture

Azri, Nur Alisa Izati and Md. Husain, Nadiah and Che Deraman, Siti Noratikah and Wan Hassan, Wan Nur Firdaus and Basri, Nur Khairiyah and Md Kassim, Tahara Ramadzan (2025) Contact angle modification in optimising adhesion performance of bitumen binder in stone mastic asphalt mixture. In: 2nd International Conference on Civil Engineering for Sustainability and Disaster Resilience (ICCESDiRe2024), 1st October 2025, Kuala Lumpur, Malaysia.

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Abstract

This study investigates the modification of bamboo fibre in affecting the physical, mechanical, and adhesion properties of stone mastic asphalt mixtures. Climate change and heavy traffic have increased the deterioration of the pavement, high maintenance costs, and several other performance-related problems. Hence, this study focused on investigating the physical and mechanical properties, evaluating the microstructure condition, and validating the adhesion performance of modified and unmodified stone mastic asphalt (SMA) mixtures. Different tests such as Marshall Stability, Cantabro Abrasion, Contact Angle, and Scanning Electron Microscopy (SEM) tests were performed using bamboo fibre at 0, 0.5, 1.0, and 1.5%. The highest stability was 10.876 kN and stiffness 3.15 kN/mm at 1.5% of bamboo fibre, and the reduction in Cantabro loss was 2.6%, with a lower contact angle of 97.92°, which reflects that there is an increase in adhesion and resistance to deformation. It can be concluded that adding a significant amount of bamboo fibre will enhance the durability, strength, and adhesion properties of SMA, therefore offering a very promising solution for sustainable and durable asphalt pavements.

Item Type:	Proceeding Paper (Plenary Papers)
Additional Information:	7692/125190
Uncontrolled Keywords:	Bamboo fibre, Contact angle, Wettability, Stone mastic asphalt (SMA), Adhesion
Subjects:	T Technology > TE Highway engineering. Roads and pavements T Technology > TE Highway engineering. Roads and pavements > TE250 Pavement and paved roads
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button):	Kulliyyah of Engineering Kulliyyah of Engineering > Department of Civil Engineering
Depositing User:	Dr. Nadiah Md. Husain
Date Deposited:	15 Dec 2025 09:50
Last Modified:	15 Dec 2025 10:04
Queue Number:	2025-12-Q543
URI:	http://irep.iium.edu.my/id/eprint/125190

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