Increasing the Biostability of Concrete by the Introduction Of Additives
To increase the resistance to fungal corrosion and improve the performance of concrete cement stone, it is proposed to introduce calcium stearate and active metal nitrates in an amount of 0.5% by weight of cement into the cement mixture at the manufacturing stage. To determine the degree of corrosio...
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
EDP Sciences
2023-01-01
|
| Series: | E3S Web of Conferences |
| Online Access: | https://www.e3s-conferences.org/articles/e3sconf/pdf/2023/40/e3sconf_escp2023_03005.pdf |
| _version_ | 1797756312268832768 |
|---|---|
| author | Rumyantseva Varvara Konovalova Viktoriya Narmaniya Boris Korinchuk Mikhail |
| author_facet | Rumyantseva Varvara Konovalova Viktoriya Narmaniya Boris Korinchuk Mikhail |
| author_sort | Rumyantseva Varvara |
| collection | DOAJ |
| description | To increase the resistance to fungal corrosion and improve the performance of concrete cement stone, it is proposed to introduce calcium stearate and active metal nitrates in an amount of 0.5% by weight of cement into the cement mixture at the manufacturing stage. To determine the degree of corrosion damage of cement stone by fungal microorganisms Aspergillus niger, porosity, density, water absorption and strength were determined. It has been found that the introduction of a hydrophobic additive of calcium stearate into the cement mixture during the manufacture of concrete reduces water absorption, reduces porosity and increases strength. Additives of nitrates of active metals do not affect the characteristics of the cement stone of concrete. As a result of 6 months of fungal corrosion, the water absorption, porosity and density of cement stone containing calcium stearate did not change, and the strength decreased by 4%. Metal nitrates do not prevent damage to the cement stone by microorganisms, but slow down the flow of aggressive substances to the surface of the reinforcement in concrete. The combined introduction of calcium stearate and nitrates into the cement mixture will improve the characteristics of concrete, increase its corrosion resistance and ensure the safety of reinforcement in concrete. |
| first_indexed | 2024-03-12T17:58:31Z |
| format | Article |
| id | doaj.art-81a42d8267c242c195a3ab036b1da069 |
| institution | Directory Open Access Journal |
| issn | 2267-1242 |
| language | English |
| last_indexed | 2024-03-12T17:58:31Z |
| publishDate | 2023-01-01 |
| publisher | EDP Sciences |
| record_format | Article |
| series | E3S Web of Conferences |
| spelling | doaj.art-81a42d8267c242c195a3ab036b1da0692023-08-02T13:16:17ZengEDP SciencesE3S Web of Conferences2267-12422023-01-014030300510.1051/e3sconf/202340303005e3sconf_escp2023_03005Increasing the Biostability of Concrete by the Introduction Of AdditivesRumyantseva Varvara0Konovalova Viktoriya1Narmaniya Boris2Korinchuk Mikhail3Ivanovo State Polytechnic University, Department of Natural Sciences and Technosphere SafetyIvanovo State Polytechnic University, Department of Natural Sciences and Technosphere SafetyMoscow State University of Civil Engineering (National Research University)Ivanovo State Polytechnic University, Department of Natural Sciences and Technosphere SafetyTo increase the resistance to fungal corrosion and improve the performance of concrete cement stone, it is proposed to introduce calcium stearate and active metal nitrates in an amount of 0.5% by weight of cement into the cement mixture at the manufacturing stage. To determine the degree of corrosion damage of cement stone by fungal microorganisms Aspergillus niger, porosity, density, water absorption and strength were determined. It has been found that the introduction of a hydrophobic additive of calcium stearate into the cement mixture during the manufacture of concrete reduces water absorption, reduces porosity and increases strength. Additives of nitrates of active metals do not affect the characteristics of the cement stone of concrete. As a result of 6 months of fungal corrosion, the water absorption, porosity and density of cement stone containing calcium stearate did not change, and the strength decreased by 4%. Metal nitrates do not prevent damage to the cement stone by microorganisms, but slow down the flow of aggressive substances to the surface of the reinforcement in concrete. The combined introduction of calcium stearate and nitrates into the cement mixture will improve the characteristics of concrete, increase its corrosion resistance and ensure the safety of reinforcement in concrete.https://www.e3s-conferences.org/articles/e3sconf/pdf/2023/40/e3sconf_escp2023_03005.pdf |
| spellingShingle | Rumyantseva Varvara Konovalova Viktoriya Narmaniya Boris Korinchuk Mikhail Increasing the Biostability of Concrete by the Introduction Of Additives E3S Web of Conferences |
| title | Increasing the Biostability of Concrete by the Introduction Of Additives |
| title_full | Increasing the Biostability of Concrete by the Introduction Of Additives |
| title_fullStr | Increasing the Biostability of Concrete by the Introduction Of Additives |
| title_full_unstemmed | Increasing the Biostability of Concrete by the Introduction Of Additives |
| title_short | Increasing the Biostability of Concrete by the Introduction Of Additives |
| title_sort | increasing the biostability of concrete by the introduction of additives |
| url | https://www.e3s-conferences.org/articles/e3sconf/pdf/2023/40/e3sconf_escp2023_03005.pdf |
| work_keys_str_mv | AT rumyantsevavarvara increasingthebiostabilityofconcretebytheintroductionofadditives AT konovalovaviktoriya increasingthebiostabilityofconcretebytheintroductionofadditives AT narmaniyaboris increasingthebiostabilityofconcretebytheintroductionofadditives AT korinchukmikhail increasingthebiostabilityofconcretebytheintroductionofadditives |