Air permeability and sorptivity of concrete modified with viscosity modifying agents
The paper presents the effect of a viscosity modifying admixture (VMA) on the air permeability, sorptivity and strength parameters (compressive and tensile strength) of concrete. The Atlas VM-500 admixture used in the research is a well-known additive that is commonly applied in concrete technology....
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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Polish Academy of Sciences
2022-03-01
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| Series: | Archives of Civil Engineering |
| Subjects: | |
| Online Access: | https://journals.pan.pl/Content/122734/PDF/art13_corr2.pdf |
| _version_ | 1798040781656686592 |
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| author | Wojciech Kubissa Karol Prałat Szymon Kania |
| author_facet | Wojciech Kubissa Karol Prałat Szymon Kania |
| author_sort | Wojciech Kubissa |
| collection | DOAJ |
| description | The paper presents the effect of a viscosity modifying admixture (VMA) on the air permeability, sorptivity and strength parameters (compressive and tensile strength) of concrete. The Atlas VM-500 admixture used in the research is a well-known additive that is commonly applied in concrete technology. Air permeability tests were carried out using the Torrent method. It was found that viscosity modifying admixtures (VMAs) have a significant impact on the permeability of concrete. The lowest values of the ���� coefficient were obtained for specimens that matured in a water environment, and which contained 0.5% of VMA. This amount of additive reduced permeability by 34% when compared to the reference series of concrete. For air-conditioned specimens with 1.2% of VMA, the maximum decrease was 28% when compared to the reference samples. In the case of samples conditioned in an environment with an increased humidity, the maximum decrease occurred with a lower VMA content of 0.5% and amounted to 27% when compared to the reference samples. In addition, it was shown that the addition of 1.2% of VMA improved the compressive strength of concrete by 2.3% during its curing in water. In turn, this amount of VMA deteriorated its strength by 10.4% when the specimens were conditioned in air, and by 8.1% when they were conditioned in high humidity. |
| first_indexed | 2024-04-11T22:12:26Z |
| format | Article |
| id | doaj.art-18dcb773cfb74285a6b8a0f4ec711796 |
| institution | Directory Open Access Journal |
| issn | 2300-3103 |
| language | English |
| last_indexed | 2024-04-11T22:12:26Z |
| publishDate | 2022-03-01 |
| publisher | Polish Academy of Sciences |
| record_format | Article |
| series | Archives of Civil Engineering |
| spelling | doaj.art-18dcb773cfb74285a6b8a0f4ec7117962022-12-22T04:00:31ZengPolish Academy of SciencesArchives of Civil Engineering2300-31032022-03-01vol. 68No 1223240https://doi.org/10.24425/ace.2022.140165Air permeability and sorptivity of concrete modified with viscosity modifying agentsWojciech Kubissa0https://orcid.org/0000-0001-5626-7917Karol Prałat1https://orcid.org/0000-0001-5116-0379Szymon Kania2Warsaw University of Technology, Faculty of Civil Engineering, Mechanics and Petrochemistry, ul. Łukasiewicza 17, 09-400 Płock, PolandWarsaw University of Technology, Faculty of Civil Engineering, Mechanics and Petrochemistry, ul. Łukasiewicza 17, 09-400 Płock, PolandWarsaw University of Technology, Faculty of Civil Engineering, Mechanics and Petrochemistry, ul. Łukasiewicza 17, 09-400 Płock, PolandThe paper presents the effect of a viscosity modifying admixture (VMA) on the air permeability, sorptivity and strength parameters (compressive and tensile strength) of concrete. The Atlas VM-500 admixture used in the research is a well-known additive that is commonly applied in concrete technology. Air permeability tests were carried out using the Torrent method. It was found that viscosity modifying admixtures (VMAs) have a significant impact on the permeability of concrete. The lowest values of the ���� coefficient were obtained for specimens that matured in a water environment, and which contained 0.5% of VMA. This amount of additive reduced permeability by 34% when compared to the reference series of concrete. For air-conditioned specimens with 1.2% of VMA, the maximum decrease was 28% when compared to the reference samples. In the case of samples conditioned in an environment with an increased humidity, the maximum decrease occurred with a lower VMA content of 0.5% and amounted to 27% when compared to the reference samples. In addition, it was shown that the addition of 1.2% of VMA improved the compressive strength of concrete by 2.3% during its curing in water. In turn, this amount of VMA deteriorated its strength by 10.4% when the specimens were conditioned in air, and by 8.1% when they were conditioned in high humidity.https://journals.pan.pl/Content/122734/PDF/art13_corr2.pdftorrent methodair permeabilityviscosity modifying agents (vma)concretes composites |
| spellingShingle | Wojciech Kubissa Karol Prałat Szymon Kania Air permeability and sorptivity of concrete modified with viscosity modifying agents Archives of Civil Engineering torrent method air permeability viscosity modifying agents (vma) concretes composites |
| title | Air permeability and sorptivity of concrete modified with viscosity modifying agents |
| title_full | Air permeability and sorptivity of concrete modified with viscosity modifying agents |
| title_fullStr | Air permeability and sorptivity of concrete modified with viscosity modifying agents |
| title_full_unstemmed | Air permeability and sorptivity of concrete modified with viscosity modifying agents |
| title_short | Air permeability and sorptivity of concrete modified with viscosity modifying agents |
| title_sort | air permeability and sorptivity of concrete modified with viscosity modifying agents |
| topic | torrent method air permeability viscosity modifying agents (vma) concretes composites |
| url | https://journals.pan.pl/Content/122734/PDF/art13_corr2.pdf |
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