Effect of Wood Fillers on Strength and Biodegradation of Caustic Magnesite

Authors

  • Vladimir Erofeev Department of Building Materials Science, Federal State Budget Educational Institution of Higher Education “Moscow State University of Civil Engineering (National Research University)“, Yaroslavskoye shosse, 26, Moscow, 129337, Russia
  • Irina Stepina Department of Building Materials Science, Federal State Budget Educational Institution of Higher Education “Moscow State University of Civil Engineering (National Research University)“, Yaroslavskoye shosse, 26, Moscow, 129337, Russia
  • Renat Badamshin Surveying company OOO PSK-PLUS, Sovetskaya st., 105A, Saransk, Russia
  • Victor Afonin Department of Automated Systems of Information Processing and Control National Research Mordovian State University named after N. P. Ogarev; ul. Bolshevistskaya, 68, Saransk, 430005, Russia
  • Vasily Smirnov Department of Biochemistry and Biotechnology National Research Lobachevsky State University of Nizhny Novgorod, Gagarin Ave., 70, Nizhny Novgorod, Nizhny Novgorod Region, 603104, Russia
  • Svetlana Samchenko Department of Building Materials Science, Federal State Budget Educational Institution of Higher Education “Moscow State University of Civil Engineering (National Research University)“, Yaroslavskoye shosse, 26, Moscow, 129337, Russia
  • Irina Kozlova Department of Building Materials Science, Federal State Budget Educational Institution of Higher Education “Moscow State University of Civil Engineering (National Research University)“, Yaroslavskoye shosse, 26, Moscow, 129337, Russia

Keywords:

Composite materials, Caustic magnesite, Wood fillers, Caustic magnesite composites, Strength, Filamentous fungi, Fungistatic and fungicidal properties, Bioresistance coefficient

Abstract

During their usage, caustic magnesite composites are susceptible to aggressive microbial action. This paper investigated the resistance of wood-filled caustic magnesite composites in a standard filamentous fungi medium. Caustic magnesite composites based on caustic magnesite, filled with wood sawdust from lime, ash, pine, and aspen trees were studied. The compositions were cured using magnesium chloride. The findings showed that composites filled with fine-fraction wood powders exhibited improved strength and resistance properties of caustic magnesite. If this requirement is met, then optimal conditions are created for the formation of an improved matrix in composites with filler and film phase. Tests in the standard medium showed that wood-filled caustic magnesite composites were fungistatic, but not fungicidal. This means that in case of external contamination, wood-filled caustic magnesite composites are susceptible to biodegradation. Tests demonstrated that exposure to the standard fungal medium resulted in an increased mass content and decreased strength of the samples.

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Published

2025-05-28 — Updated on 2025-06-03

How to Cite

Erofeev, V., Stepina, I., Badamshin, R., Afonin, V., Smirnov, V., Samchenko, S., & Kozlova, I. (2025). Effect of Wood Fillers on Strength and Biodegradation of Caustic Magnesite . BioResources, 20(3), 5790–5800. Retrieved from https://ojs.bioresources.com/index.php/BRJ/article/view/24358

Issue

Vol. 20 No. 3 (2025)

Section

Research Article or Brief Communication