| Issue |
E3S Web Conf.
Volume 641, 2025
The 17th International Scientific Conference of Civil and Environmental Engineering for the PhD. Students and Young Scientists – Young Scientist 2025 (YS25)
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|---|---|---|
| Article Number | 01024 | |
| Number of page(s) | 6 | |
| Section | Civil Engineering | |
| DOI | https://doi.org/10.1051/e3sconf/202564101024 | |
| Published online | 12 August 2025 | |
Adhesion and interaction of inorganic binder systems with a biodegradable polymer based on polylactic acid
1 VSB – Technical University of Ostrava, Faculty of Civil Engineering, Department of Building Materials and Diagnostics of Structures, Ludvika Podeste 1875/17, 708 00 Ostrava-Poruba, Czech Republic
2 TESTSTAV, spol. s r.o., Františka Lyska 1599/6, 700 30 Ostrava – Belsky Les, Czech Republic
* Corresponding author: radoslav.gandel@vsb.cz
The interaction of common building materials with materials with diametrically different physical-mechanical properties represents one of the main problems in the creation of new types of composites. Some types of polymers have proven themselves in the past in the form of dispersed reinforcement. However, the overuse of plastics and the problem of their disposal now provides an open door for other alternative ideas. This work deals with the observation of the adhesion of a biodegradable polylactic acid-based polymer with composites such as conventional concrete, high-performance concrete and alkali-activated system under three-point bending test. Results show that adhesion and mechanical performance depend strongly on both the matrix and reinforcement type. Ordinary Portland cement concrete (OPCC) specimens demonstrated the best bond with polylactic acid (PLA) and the highest flexural strength gains, particularly with ribbed PLA (60 %). In contrast, high-performance concrete (HPC) and alkali-activated material (AAM) showed reduced adhesion, with flexural strength decreasing by up to 20 %.
© The Authors, published by EDP Sciences, 2025
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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