Zobrazeno 1 - 10
of 100
pro vyhledávání: '"Andreea HEGYI"'
Autor:
Carmen Teodora Florean, Mihail Chira, Horațiu Vermeșan, Timea Gabor, Andreea Hegyi, Claudia Alice Crișan, Cristina Câmpian
Publikováno v:
Materials, Vol 17, Iss 16, p 3895 (2024)
The aim of this paper was to examine the effects of adding TiO2 nanoparticles to cementitious compositions and partially substituting natural aggregates with recycled aggregates consisting of glass, brick, slag, or textolite, and to examine the mater
Externí odkaz:
https://doaj.org/article/99cabc61c2f24a5d9c421f03673d920d
Autor:
Carmen Teodora Florean, Alexandra Csapai, Horatiu Vermesan, Timea Gabor, Andreea Hegyi, Vlad Stoian, Willi Andrei Uriciuc, Cristian Petcu, Marius Cîmpan
Publikováno v:
Materials, Vol 17, Iss 13, p 3098 (2024)
This study evaluated the potential of incorporating TiO2 nanoparticles (NT) into cementitious composites to provide self-cleaning and self-sanitising properties, as well as the partial replacement of natural aggregates with recycled glass (RGA), cera
Externí odkaz:
https://doaj.org/article/32476c7a3abf484286a91ce1cc089c61
Publikováno v:
European Journal of Materials Science and Engineering, Vol 8, Iss 1, Pp 11-21 (2023)
As research regarding the production and optimization of geopolymer materials is constantly increasing and is fundamentally motivated by the need, identified both in the global ecological context and at national level, new materials can be developed
Externí odkaz:
https://doaj.org/article/1cbd8b99885441d28cc2695e47e080a3
Autor:
Carmen Teodora Florean, Horațiu Vermeșan, Timea Gabor, Bogdan Viorel Neamțu, Gyorgy Thalmaier, Andreea Hegyi, Alexandra Csapai, Adrian-Victor Lăzărescu
Publikováno v:
Materials, Vol 17, Iss 9, p 2014 (2024)
The aim of this study is to analyze the effect of the addition of TiO2 nanoparticles (NTs) on the physical and mechanical properties, as well as the microstructural changes, of cementitious composites containing partially substituted natural aggregat
Externí odkaz:
https://doaj.org/article/72ade3670c334536b1b000a93f21d3e6
Publikováno v:
Materials, Vol 17, Iss 2, p 485 (2024)
In light of the urgent need to develop environmentally friendly materials that, at some point, will allow the reduction of concrete and, consequently, cement consumption—while at the same time allowing the reuse of waste and industrial by-products
Externí odkaz:
https://doaj.org/article/b406267e8e1f47bea0cce94e195a14e0
Publikováno v:
Materials, Vol 16, Iss 18, p 6189 (2023)
Soil pollution with heavy metals is a problem for the whole geosystem. The aim of the research is to identify new solutions for extracting heavy metals from polluted soils so that they can be further exploited. To this end, investigations of the phys
Externí odkaz:
https://doaj.org/article/e11c336803604aad9a43a6148b2bf8e6
Autor:
Cristian Petcu, Cornelia Florentina Dobrescu, Claudiu Sorin Dragomir, Adrian Alexandru Ciobanu, Adrian Victor Lăzărescu, Andreea Hegyi
Publikováno v:
Materials, Vol 16, Iss 17, p 6015 (2023)
This case study focuses on twelve compacted clay soil samples to understand their fundamental physical and thermal properties. For each sample, the density, thermal conductivity, thermal diffusivity, specific heat, and drying shrinkage were assessed.
Externí odkaz:
https://doaj.org/article/f70452c1e90b443282d6709374c4205f
Autor:
Cristian Petcu, Andreea Hegyi, Vlad Stoian, Claudiu Sorin Dragomir, Adrian Alexandru Ciobanu, Adrian-Victor Lăzărescu, Carmen Florean
Publikováno v:
Materials, Vol 16, Iss 15, p 5458 (2023)
Worldwide, the need for thermal insulation materials used to increase the energy performance of buildings and ensure indoor thermal comfort is constantly growing. There are several traditional, well-known and frequently used thermal insulation materi
Externí odkaz:
https://doaj.org/article/883dce47d2674cbe9aed7eb358f44d71
Publikováno v:
Materials, Vol 16, Iss 14, p 4903 (2023)
This research investigates the feasibility of developing clay composites using natural materials and incorporating waste by-products suitable for plastering diverse support structures. The study identified a versatile composition suitable for a wide
Externí odkaz:
https://doaj.org/article/e3f8e2a821174d6bb6f11bf01616ed4f
Autor:
Andreea Hegyi, Adrian-Victor Lăzărescu, Adrian Alexandru Ciobanu, Brăduţ Alexandru Ionescu, Elvira Grebenişan, Mihail Chira, Carmen Florean, Horaţiu Vermeşan, Vlad Stoian
Publikováno v:
Materials, Vol 16, Iss 10, p 3741 (2023)
Starting from the context of the principles of Sustainable Development and Circular Economy concepts, the paper presents a synthesis of research in the field of the development of materials of interest, such as cementitious composites or alkali-activ
Externí odkaz:
https://doaj.org/article/658620d333644c459da501dc9ca4eaa9