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Technical Journal, Vol. 19 No. 1, 2025.

Original scientific paper

https://doi.org/10.31803/tg-20250108082640

Investigation and Optimization of Adhesive Structure Formation on Shell Limestone Surfaces

Andrii Kolesnykov ; Odessa State Academy of Civil Engineering and Architecture, Construction and Technological Institute, Department of Chemistry and Ecology, Didrihsona st., 4, 65029 Odesa, Ukraine
Mykola Khlytsov ; Odessa State Academy of Civil Engineering and Architecture, Construction and Technological Institute, Department of Processes and Apparatuses in the Technology of Building Materials, Didrihsona st., 4, 65029 Odesa, Ukraine
Svitlana Semenova orcid id orcid.org/0000-0002-5309-5854 ; Odessa State Academy of Civil Engineering and Architecture, Construction and Technological Institute, Department of Chemistry and Ecology, Didrihsona st., 4, 65029 Odesa, Ukraine
Mario Šercer ; Development and Training Centre for the Metal Industry - Metal Centre Čakovec, Bana Josipa Jelačića 22 D, 40000 Čakovec, Croatia *

* Corresponding author.

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Abstract

The article is devoted to the study of the adhesive interaction of restorative compositions with shell limestone as a highly porous material of complex structure. The key physicochemical and mechanical factors determining adhesion are analyzed, including molecular forces, hydrogen bonds, electrostatic interactions, acid-base interactions, as well as the effect of humidity on adhesion. Elements of fractal geometry are used to describe the processes of adaptation of compositions to porous surfaces, a criterion of ideal adhesive contact is introduced. Models of structure formation are considered, including the Smoluchowski equation, diffusion-limited and cluster-cluster aggregation. It is shown how optimization of the restorative composition due to the selection of the necessary fractal parameters can improve its adhesive characteristics. Recommendations are given for the use of various methods for optimizing adhesion processes in restoration. It is also possible to use the obtained results in modern additive technologies.

Keywords

adhesion; fractal dimension; porous structure; restorative compositions; shell limestone; structure formation

Hrčak ID:

327624

URI

https://hrcak.srce.hr/327624

Publication date:

14.3.2025.

Visits: 643 *