Autogenous healing performance of fly ash-based alkali activated lightweight aggregate in mortar
- Author
- Puput Risdanareni, Jianyun Wang (UGent) and Nele De Belie (UGent)
- Organization
- Abstract
- Cracks in concrete that could decrease the concrete element's life span need to be repaired. The autogenous healing mechanism, a feature provided by cementitious material due to continuous hydratation and calcium carbonate precipitation, could be a solution to mitigate cracks in concrete elements. In this research, alkali-activated lightweight aggregate produced from fly ash (FA LWA) that could retain water in their pores to induce further hydratation at a later age could become a promising material to provoke an autogenous healing mechanism. The mortar was mixed with FA LWA and expanded clay LWA (EC LWA) at a replacement rate of 30% by volume for fine aggregate. The outcomes demonstrate that the flowability of the fresh mortar was not considerably impacted by the addition of LWA. The compressive strength of mortar incorporating FA LWA was comparable to the mortar that contains EC LWA. The healing ratio of the reference sample, the sample incorporating FA LWA in the crack with the width range of 0.3-0.4 mm, was 33, 95 and 53% respectively. In conclusion, FA LWA could successfully provoke the autogenous healing mechanism in mortar.
- Keywords
- Autogenous healing, Fly ash, Alkali activated LWA, Self-healing mortar
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Citation
Please use this url to cite or link to this publication: http://hdl.handle.net/1854/LU-01JS4AH0QYK8W82A5W84KZ75V2
- MLA
- Risdanareni, Puput, et al. “Autogenous Healing Performance of Fly Ash-Based Alkali Activated Lightweight Aggregate in Mortar.” Proceedings of the 6th International Conference on Rehabilitation and Maintenance in Civil Engineering : Volume 1 : ICRMCE 2024, edited by Keh-Chyuan Tsai et al., Springer, 2025, pp. 175–80, doi:10.1007/978-981-96-2143-9_19.
- APA
- Risdanareni, P., Wang, J., & De Belie, N. (2025). Autogenous healing performance of fly ash-based alkali activated lightweight aggregate in mortar. In K.-C. Tsai, M. Shahin, S. A. Kristiawan, A. R. Mohd Sam, & P. Dinh Hai (Eds.), Proceedings of the 6th International Conference on Rehabilitation and Maintenance in Civil Engineering : volume 1 : ICRMCE 2024 (pp. 175–180). https://doi.org/10.1007/978-981-96-2143-9_19
- Chicago author-date
- Risdanareni, Puput, Jianyun Wang, and Nele De Belie. 2025. “Autogenous Healing Performance of Fly Ash-Based Alkali Activated Lightweight Aggregate in Mortar.” In Proceedings of the 6th International Conference on Rehabilitation and Maintenance in Civil Engineering : Volume 1 : ICRMCE 2024, edited by Keh-Chyuan Tsai, Mohamed Shahin, Stefanus A. Kristiawan, Abdul Rahman Mohd Sam, and Pham Dinh Hai, 175–80. Singapore: Springer. https://doi.org/10.1007/978-981-96-2143-9_19.
- Chicago author-date (all authors)
- Risdanareni, Puput, Jianyun Wang, and Nele De Belie. 2025. “Autogenous Healing Performance of Fly Ash-Based Alkali Activated Lightweight Aggregate in Mortar.” In Proceedings of the 6th International Conference on Rehabilitation and Maintenance in Civil Engineering : Volume 1 : ICRMCE 2024, ed by. Keh-Chyuan Tsai, Mohamed Shahin, Stefanus A. Kristiawan, Abdul Rahman Mohd Sam, and Pham Dinh Hai, 175–180. Singapore: Springer. doi:10.1007/978-981-96-2143-9_19.
- Vancouver
- 1.Risdanareni P, Wang J, De Belie N. Autogenous healing performance of fly ash-based alkali activated lightweight aggregate in mortar. In: Tsai K-C, Shahin M, Kristiawan SA, Mohd Sam AR, Dinh Hai P, editors. Proceedings of the 6th International Conference on Rehabilitation and Maintenance in Civil Engineering : volume 1 : ICRMCE 2024. Singapore: Springer; 2025. p. 175–80.
- IEEE
- [1]P. Risdanareni, J. Wang, and N. De Belie, “Autogenous healing performance of fly ash-based alkali activated lightweight aggregate in mortar,” in Proceedings of the 6th International Conference on Rehabilitation and Maintenance in Civil Engineering : volume 1 : ICRMCE 2024, Mataram, Indonesia, 2025, pp. 175–180.
@inproceedings{01JS4AH0QYK8W82A5W84KZ75V2,
abstract = {{Cracks in concrete that could decrease the concrete element's life span need to be repaired. The autogenous healing mechanism, a feature provided by cementitious material due to continuous hydratation and calcium carbonate precipitation, could be a solution to mitigate cracks in concrete elements. In this research, alkali-activated lightweight aggregate produced from fly ash (FA LWA) that could retain water in their pores to induce further hydratation at a later age could become a promising material to provoke an autogenous healing mechanism. The mortar was mixed with FA LWA and expanded clay LWA (EC LWA) at a replacement rate of 30% by volume for fine aggregate. The outcomes demonstrate that the flowability of the fresh mortar was not considerably impacted by the addition of LWA. The compressive strength of mortar incorporating FA LWA was comparable to the mortar that contains EC LWA. The healing ratio of the reference sample, the sample incorporating FA LWA in the crack with the width range of 0.3-0.4 mm, was 33, 95 and 53% respectively. In conclusion, FA LWA could successfully provoke the autogenous healing mechanism in mortar.}},
author = {{Risdanareni, Puput and Wang, Jianyun and De Belie, Nele}},
booktitle = {{Proceedings of the 6th International Conference on Rehabilitation and Maintenance in Civil Engineering : volume 1 : ICRMCE 2024}},
editor = {{Tsai, Keh-Chyuan and Shahin, Mohamed and Kristiawan, Stefanus A. and Mohd Sam, Abdul Rahman and Dinh Hai, Pham}},
isbn = {{9789819621422}},
issn = {{2366-2557}},
keywords = {{Autogenous healing,Fly ash,Alkali activated LWA,Self-healing mortar}},
language = {{eng}},
location = {{Mataram, Indonesia}},
pages = {{175--180}},
publisher = {{Springer}},
title = {{Autogenous healing performance of fly ash-based alkali activated lightweight aggregate in mortar}},
url = {{http://doi.org/10.1007/978-981-96-2143-9_19}},
year = {{2025}},
}
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