Mechanical Performance of Concrete Exposed to Sewage—The Influence of Time and pH
Contact of concrete with aggressive factors, technological structures, reduces their durability through microstructural changes. This work presents the results of research on determining the influence of post grit chamber sewage and sewage from the active sludge chamber in three different environmen...
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2021-05-01
|
| Series: | Minerals |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2075-163X/11/5/544 |
| _version_ | 1797533446719930368 |
|---|---|
| author | Justyna Czajkowska Maciej Malarski Joanna Witkowska-Dobrev Marek Dohojda Piotr Nowak |
| author_facet | Justyna Czajkowska Maciej Malarski Joanna Witkowska-Dobrev Marek Dohojda Piotr Nowak |
| author_sort | Justyna Czajkowska |
| collection | DOAJ |
| description | Contact of concrete with aggressive factors, technological structures, reduces their durability through microstructural changes. This work presents the results of research on determining the influence of post grit chamber sewage and sewage from the active sludge chamber in three different environments, i.e., acidic, neutral, and alkaline, on the structure and compressive strength of concrete. Compressive strength tests were carried out after 11.5 months of concrete cubes being submerged in the solutions and compared. To complete the studies, the photos of the microstructure were done. This made it possible to accentuate the relationship between the microstructure and performance characteristics of concrete. The time of storing the cubes in both acidic environments (sewage from post grit chamber and active sludge chamber) has a negative influence on their compressive strength. The compressive strength of cubes decreases along with the time. Compressive strength of cubes increases with increasing pH of the environment. |
| first_indexed | 2024-03-10T11:14:39Z |
| format | Article |
| id | doaj.art-e340f7fe39b14e188aef9482346d70df |
| institution | Directory Open Access Journal |
| issn | 2075-163X |
| language | English |
| last_indexed | 2024-03-10T11:14:39Z |
| publishDate | 2021-05-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Minerals |
| spelling | doaj.art-e340f7fe39b14e188aef9482346d70df2023-11-21T20:32:57ZengMDPI AGMinerals2075-163X2021-05-0111554410.3390/min11050544Mechanical Performance of Concrete Exposed to Sewage—The Influence of Time and pHJustyna Czajkowska0Maciej Malarski1Joanna Witkowska-Dobrev2Marek Dohojda3Piotr Nowak4Institute of Environmental Engineering, Warsaw University of Life Science, Nowoursynowska 159, 02-776 Warsaw, PolandInstitute of Environmental Engineering, Warsaw University of Life Science, Nowoursynowska 159, 02-776 Warsaw, PolandInstitute of Civil Engineering, Warsaw University of Life Science, Nowoursynowska 159, 02-776 Warsaw, PolandInstitute of Civil Engineering, Warsaw University of Life Science, Nowoursynowska 159, 02-776 Warsaw, PolandInstitute of Environmental Engineering, Warsaw University of Life Science, Nowoursynowska 159, 02-776 Warsaw, PolandContact of concrete with aggressive factors, technological structures, reduces their durability through microstructural changes. This work presents the results of research on determining the influence of post grit chamber sewage and sewage from the active sludge chamber in three different environments, i.e., acidic, neutral, and alkaline, on the structure and compressive strength of concrete. Compressive strength tests were carried out after 11.5 months of concrete cubes being submerged in the solutions and compared. To complete the studies, the photos of the microstructure were done. This made it possible to accentuate the relationship between the microstructure and performance characteristics of concrete. The time of storing the cubes in both acidic environments (sewage from post grit chamber and active sludge chamber) has a negative influence on their compressive strength. The compressive strength of cubes decreases along with the time. Compressive strength of cubes increases with increasing pH of the environment.https://www.mdpi.com/2075-163X/11/5/544sewagedurabilityacidssulfate attackconcrete strengthcompressive strength test |
| spellingShingle | Justyna Czajkowska Maciej Malarski Joanna Witkowska-Dobrev Marek Dohojda Piotr Nowak Mechanical Performance of Concrete Exposed to Sewage—The Influence of Time and pH Minerals sewage durability acids sulfate attack concrete strength compressive strength test |
| title | Mechanical Performance of Concrete Exposed to Sewage—The Influence of Time and pH |
| title_full | Mechanical Performance of Concrete Exposed to Sewage—The Influence of Time and pH |
| title_fullStr | Mechanical Performance of Concrete Exposed to Sewage—The Influence of Time and pH |
| title_full_unstemmed | Mechanical Performance of Concrete Exposed to Sewage—The Influence of Time and pH |
| title_short | Mechanical Performance of Concrete Exposed to Sewage—The Influence of Time and pH |
| title_sort | mechanical performance of concrete exposed to sewage the influence of time and ph |
| topic | sewage durability acids sulfate attack concrete strength compressive strength test |
| url | https://www.mdpi.com/2075-163X/11/5/544 |
| work_keys_str_mv | AT justynaczajkowska mechanicalperformanceofconcreteexposedtosewagetheinfluenceoftimeandph AT maciejmalarski mechanicalperformanceofconcreteexposedtosewagetheinfluenceoftimeandph AT joannawitkowskadobrev mechanicalperformanceofconcreteexposedtosewagetheinfluenceoftimeandph AT marekdohojda mechanicalperformanceofconcreteexposedtosewagetheinfluenceoftimeandph AT piotrnowak mechanicalperformanceofconcreteexposedtosewagetheinfluenceoftimeandph |