Application of micro and nano modifying additives in road construction materials
DOI:
https://doi.org/10.54355/tbus/4.4.2024.0066Keywords:
additives, road-building materials, micro- and nano-additives, nano dispersed materials, nanomaterials, bitumen modification, polymersAbstract
The need for stronger and more sustainable road infrastructure has stimulated research into innovative materials, including micro- and nano-additives, to improve the performance of asphalt and bitumen. This paper aims to summarize the advances in the application of these additives with a focus on improving mechanical, thermal, and environmental properties. The study provides a detailed review of traditional micro-additives such as elastomers and resins, as well as advanced nanomaterials including nano silica, nano clay, and carbon nanoparticles. Methods include analyzing experimental data from recent studies on bitumen modification with biopolymeric materials such as polylactic acid (PLA), which show an increase in molecular weight, softening point, and ductility. The main results show that the use of nano additives improves the durability of the road surface, increases its resistance to cracking, and increases the service life of the material under different climatic conditions. For example, roads modified with nano silica showed a 20-30% improvement in tensile strength and a 15% reduction in deformation. In addition, PLA bitumen modification increased the softening point by 10°C and improved the overall elasticity by 25%. These results emphasize the potential of micro- and nano-additives to create more durable, environmentally friendly, high-performance road materials.
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Copyright (c) 2024 Rassul Tlegenov, Marat Konkanov, Assel Jexembayeva, Kinga Korniejenko
This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.
Funding data
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Ministry of Education and Science of the Republic of Kazakhstan
Grant numbers BR18574214
