Identifying the effect of the hydrated lime on self-healing steel slag stone mastic asphalt using the induction heating method in tropical conditions

Authors

DOI:

https://doi.org/10.15587/1729-4061.2025.325722

Keywords:

steel slag, stone mastic asphalt, heating induction, self-healing, three-point bending test, tropical condition

Abstract

This study examines the effect of a hydrated lime additive on steel slag stone mastic asphalt for induction heating and induced healing applications. It evaluates the self-healing capabilities of hydrated lime-modified steel slag stone mastic asphalt under tropical conditions.

The three-point bending was first tested on the steel slag-stone mastic asphalt mixture modified with hydrated lime (1 %, 2 %, 3 %, and 4 % by mix weight). The mix's fracture, displacement, cracking resistance, and flexibility index are evaluated. Subsequently, the fracture, displacement, cracking resistance, flexibility index recovery, and healing ratio for damage-healing were investigated. The research employs induction heating, which regulates temperature according to natural tropical conditions. The healing process is compared between heating in a tropical environment and heating with additional temperature.

The results demonstrated that adding hydrated lime to steel slag stone mastic asphalt increased fracture strength, however, this improvement was accompanied by decreased displacement, cracking resistance, and flexibility. The findings indicate that the healing ratio of steel slag stone mastic asphalt is enhanced by 1 % hydrated lime. Adding 1 % hydrated lime is optimal for improving fracture strength and healing ratio. The fracture strength increased by 5 % with a 1 % variation of hydrated lime. The healing ratio of the 1 % hydrated lime-modified stone mastic asphalt increased by 14.57 % under natural conditions compared to 0 % hydrated lime steel slag stone mastic asphalt. Furthermore, the healing ratio of steel slag mastic asphalt with 1 % hydrated lime subjected to artificial heating increased by 22.08 % compared to stone mastic asphalt with 0 % hydrated lime under natural heating

Author Biographies

Irawati Irawati, Universitas Muhammadiyah Jember

Assistant Professor of Civil Engineering

Department of Civil Engineering

Ludfi Djakfar, Universitas Brawijaya

Professor of Civil Engineering

Department of Civil Engineering

Muhammad Zainul Arifin, Universitas Brawijaya

Associate Professor of Civil Engineering

Department of Civil Engineering

Akhmad Sabarudin, Universitas Brawijaya

Professor of Material and Analytical Chemistry

Department of Chemistry

Ilanka Cahya Dewi, Universitas Muhammadiyah Jember

Assistant Professor of Civil Engineering

Department of Civil Engineering

Irawan Palgunadi, Krakatau Steel Indonesia Company

Manager Research & Development

References

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Identifying the effect of the hydrated lime on self-healing steel slag stone mastic asphalt using the induction heating method in tropical conditions

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Published

2025-04-30

How to Cite

Irawati, I., Djakfar, L., Arifin, M. Z., Sabarudin, A., Dewi, I. C., & Palgunadi, I. (2025). Identifying the effect of the hydrated lime on self-healing steel slag stone mastic asphalt using the induction heating method in tropical conditions. Eastern-European Journal of Enterprise Technologies, 2(6 (134), 33–43. https://doi.org/10.15587/1729-4061.2025.325722

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Technology organic and inorganic substances