Investigation of the mechanical strength of cement mortars containing novel synthesised chitosan/hydromagnesite stromatolite nano-composite Ispitivanje mehaničke čvrstoće cementnih mortova koji sadrže novi sintetizirani nanokompozit kitozan/hidromagnezit stromatolit

KARAKUŞ S., Özbay A. E. Ö., Pehlivan A. O., YAZGAN A. U., Karapınar I. S., TAŞALTIN N., ...More

Gradevinar, vol.77, no.5, pp.449-458, 2025 (SCI-Expanded, Scopus) identifier identifier

  • Publication Type: Article / Article
  • Volume: 77 Issue: 5
  • Publication Date: 2025
  • Doi Number: 10.14256/jce.3083.2020
  • Journal Name: Gradevinar
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Aerospace Database, Aqualine, Aquatic Science & Fisheries Abstracts (ASFA), Communication Abstracts, ICONDA Bibliographic, Metadex, Directory of Open Access Journals, Civil Engineering Abstracts
  • Page Numbers: pp.449-458
  • Keywords: cement, hydromagnesite stromatolite, mechanical performance, microstructure, nano-composites
  • Istanbul University-Cerrahpasa Affiliated: Yes

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.