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Published: Građevinar 77 (2025) 5
Paper type: Scientific research paper
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Investigation of the mechanical strength of cement mortars containing novel synthesised chitosan/hydromagnesite stromatolite nano-composite

Selcan Karakuş, Ayşe Elif Özsoy Özbay, Ahmet Onur Pehlivan, Ahmet Utku Yazgan, Işıl Sanrı Karapınar, Nevin Taşaltın, Ayben Kilislioğlu

Abstract

This study introduces the use of a novel synthesised chitosan/hydromagnesite stromatolite (CHT/HS) nano-composite in cement mortars and investigates its effects on the mechanical properties. The proposed bio-based nano-composite was synthesised by a green sonication method using HS originating from Salda Lake (Burdur, Turkey). The chemical and morphological properties of HS and CHT/HS nano-composites were determined. Specimens including HS in ratios of 5 and 10 % and CHT/HS nanostructures with 0.1, 0.5, 1 and 2 % were tested for flexural and compressive strengths for 7 and 28 days. The novel synthesised CHT/HS nano-composite showed a clear enhancement in mechanical strength. These findings suggest directions for future work on different nano-filler applications.

Keywords
hydromagnesite stromatolite, cement, nano-composites, mechanical performance, microstructure

HOW TO CITE THIS ARTICLE:

Karakuş, S., Özsoy Özbay, A. E., Pehlivan, A. O., Yazgan, A. U., Karapınar, I. S., Taşaltın, N., Kilislioğlu, A.: Investigation of the mechanical strength of cement mortars containing novel synthesised chitosan/hydromagnesite stromatolite nano-composite, GRAĐEVINAR, 77 (2025) 5, pp. 449-458, doi: https://doi.org/10.14256/JCE.3083.2020

OR:

Karakuş, S., Özsoy Özbay, A. E., Pehlivan, A. O., Yazgan, A. U., Karapınar, I. S., Taşaltın, N., Kilislioğlu, A. (2025). Investigation of the mechanical strength of cement mortars containing novel synthesised chitosan/hydromagnesite stromatolite nano-composite, GRAĐEVINAR, 77 (5), 449-458, doi: https://doi.org/10.14256/JCE.3083.2020

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Authors:
S. Karakus
Selcan Karakuş
Istanbul University-Cerrahpasa, Turkey
Faculty of Engineering, Department of Chemistry
A2. Elif Ozsoy Ozbay
Ayşe Elif Özsoy Özbay
Maltepe University, Turkey
Faculty of Engineering and Natural Sciences
Department of Civil Engineering
A. Onur Pehlivan
Ahmet Onur Pehlivan
Turkish-German University, Turkey
Faculty of Engineering, Department of Civil Engineering
A. Utku Yazgan
Ahmet Utku Yazgan
Maltepe University, Turkey
Faculty of Engineering and Natural Sciences
Department of Civil Engineering
IIL SANRI KARAPINAR WEB
Işıl Sanrı Karapınar
Maltepe University, Turkey
Faculty of Engineering and Natural Sciences
Department of Civil Engineering
NEVN TAALTIN WEB
Nevin Taşaltın
Maltepe University, Turkey
Faculty of Engineering and Natural Sciences
Department of Electrical and Electronics Engineering

Ayben Kilislioğlu
Kadir Has University, Turkey
Faculty of Engineering and Natural Sciences
Department of Electrical and Electronics Engineering