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Biostability of Road Cement-Mineral Materials Reinforced with Dispersed Fibre
https://orcid.org/http://orcid.org/0000-0002-0649-4342
https://orcid.org/http://orcid.org/0000-0001-9680-6698
https://orcid.org/http://orcid.org/0000-0002-8877-5366
Modification of building and road materials with fibres is a promising area of construction material science. This type of dispersed reinforcement can increase several performance indicators. However, a small number of works consider biodamage of such materials. This work studies biostability of road cement-sand materials modified with cellulose (a natural fibre) in the conditions simulating culture fluids of molds of the Aspergillus niger and Penicillium genus. The relationships between the bending strength loss of fibre-cement-sand materials and the holding time in the tested media of carboxylic acids were obtained. It was found that the maximum decrease in strength after biodamage reaches 40% (from the initial). It was shown that the mixture of acids simulating the culture fluid of molds of the Aspergillus niger genus has the greatest ability to biodegrade road cement-sand materials modified with cellulose fibre. It is recommended to use this method of determining the hardness of the test materials when designing and constructing the regional and local highways, especially those connecting agricultural, livestock, and other complexes.
Biostability of Road Cement-Mineral Materials Reinforced with Dispersed Fibre
https://orcid.org/http://orcid.org/0000-0002-0649-4342
https://orcid.org/http://orcid.org/0000-0001-9680-6698
https://orcid.org/http://orcid.org/0000-0002-8877-5366
Modification of building and road materials with fibres is a promising area of construction material science. This type of dispersed reinforcement can increase several performance indicators. However, a small number of works consider biodamage of such materials. This work studies biostability of road cement-sand materials modified with cellulose (a natural fibre) in the conditions simulating culture fluids of molds of the Aspergillus niger and Penicillium genus. The relationships between the bending strength loss of fibre-cement-sand materials and the holding time in the tested media of carboxylic acids were obtained. It was found that the maximum decrease in strength after biodamage reaches 40% (from the initial). It was shown that the mixture of acids simulating the culture fluid of molds of the Aspergillus niger genus has the greatest ability to biodegrade road cement-sand materials modified with cellulose fibre. It is recommended to use this method of determining the hardness of the test materials when designing and constructing the regional and local highways, especially those connecting agricultural, livestock, and other complexes.
Biostability of Road Cement-Mineral Materials Reinforced with Dispersed Fibre
https://orcid.org/http://orcid.org/0000-0002-0649-4342
https://orcid.org/http://orcid.org/0000-0001-9680-6698
https://orcid.org/http://orcid.org/0000-0002-8877-5366
Modification of building and road materials with fibres is a promising area of construction material science. This type of dispersed reinforcement can increase several performance indicators. However, a small number of works consider biodamage of such materials. This work studies biostability of road cement-sand materials modified with cellulose (a natural fibre) in the conditions simulating culture fluids of molds of the Aspergillus niger and Penicillium genus. The relationships between the bending strength loss of fibre-cement-sand materials and the holding time in the tested media of carboxylic acids were obtained. It was found that the maximum decrease in strength after biodamage reaches 40% (from the initial). It was shown that the mixture of acids simulating the culture fluid of molds of the Aspergillus niger genus has the greatest ability to biodegrade road cement-sand materials modified with cellulose fibre. It is recommended to use this method of determining the hardness of the test materials when designing and constructing the regional and local highways, especially those connecting agricultural, livestock, and other complexes.
Biostability of Road Cement-Mineral Materials Reinforced with Dispersed Fibre
Lecture Notes in Civil Engineering
Vatin, Nikolai (editor) / Vdovin, Evgenii (author) / Stroganov, Victor (author) / Amel’chenko, Maxim (author) / Kraus, Eduard (author) / Fazleev, Ilshat (author)
International Scientific Conference on Socio-Technical Construction and Civil Engineering ; 2021 ; Kazan, Russia
2021-06-29
8 pages
Article/Chapter (Book)
Electronic Resource
English
Cement Composites’ Biostability
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