The physical-mechanical behavior and chemical bonding nature of poly-N-vinylpyrrolidone modified cement concrete
In this study, the various amounts of poly-N-vinylpyrrolidone (PVPr) were added to the cement paste, and some parameters - flowing, initial and final setting points, water absorption, compressive strength, and flexural strength were determined. The concrete containing 0.8% PVPr exhibited high water...
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| Format: | Article |
| Language: | English |
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Elsevier
2024-02-01
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| Series: | Heliyon |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S240584402402070X |
| _version_ | 1797267717699403776 |
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| author | Shamo Z. Tapdiqov Elvin Y. Malikov Seadat F. Humbatova Fariz F. Ahmed Sevda Sh. Kazımova Ayaz M. Gulamirov Samire M. Mammadova Jamila E. Guliyeva |
| author_facet | Shamo Z. Tapdiqov Elvin Y. Malikov Seadat F. Humbatova Fariz F. Ahmed Sevda Sh. Kazımova Ayaz M. Gulamirov Samire M. Mammadova Jamila E. Guliyeva |
| author_sort | Shamo Z. Tapdiqov |
| collection | DOAJ |
| description | In this study, the various amounts of poly-N-vinylpyrrolidone (PVPr) were added to the cement paste, and some parameters - flowing, initial and final setting points, water absorption, compressive strength, and flexural strength were determined. The concrete containing 0.8% PVPr exhibited high water absorption, specifically, at 14 and 28 days, increased from 15.65% to 20.71% and from 16.74% to 21.67%, respectively. The final setting time increased from 238 min to 261 min. It was determined that the compressive strength of the cement mortar increased from 54.8 MPa to 58.5 MPa when the PVPr content was 0.8–1.0%. The flexural strength also improved due to the presence of PVPr, increasing from 11.58 MPa to 14.27 MPa. According to the FTIR characterization, the PVPr macromolecule interacts with Ca2+ and Al3+ ions. TGA analysis reveals that the chemical interaction of PVPr with calcium and aluminum ions limits its mass loss up to 4–5% until 400 °C. |
| first_indexed | 2024-03-08T00:00:27Z |
| format | Article |
| id | doaj.art-1648d40eef3246719c254b2effe52b45 |
| institution | Directory Open Access Journal |
| issn | 2405-8440 |
| language | English |
| last_indexed | 2024-04-25T01:21:02Z |
| publishDate | 2024-02-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Heliyon |
| spelling | doaj.art-1648d40eef3246719c254b2effe52b452024-03-09T09:26:58ZengElsevierHeliyon2405-84402024-02-01104e26039The physical-mechanical behavior and chemical bonding nature of poly-N-vinylpyrrolidone modified cement concreteShamo Z. Tapdiqov0Elvin Y. Malikov1Seadat F. Humbatova2Fariz F. Ahmed3Sevda Sh. Kazımova4Ayaz M. Gulamirov5Samire M. Mammadova6Jamila E. Guliyeva7SOCAR Oilgasresearchproject Institute, Azerbaijan; Corresponding author.Faculty of Chemistry, Baku State University, AzerbaijanNanostructured Metal-polymer Catalysts, Institute of Catalysis and Inorganic Chemistry, Azerbaijan Republic Ministry of Science and Education, AzerbaijanSOCAR Oilgasresearchproject Institute, AzerbaijanSOCAR Oilgasresearchproject Institute, AzerbaijanDepartment of Nuclear Spectroscopy and Radiochemistry, National Nuclear Research Centre, AzerbaijanNanostructured Metal-polymer Catalysts, Institute of Catalysis and Inorganic Chemistry, Azerbaijan Republic Ministry of Science and Education, AzerbaijanNanostructured Metal-polymer Catalysts, Institute of Catalysis and Inorganic Chemistry, Azerbaijan Republic Ministry of Science and Education, AzerbaijanIn this study, the various amounts of poly-N-vinylpyrrolidone (PVPr) were added to the cement paste, and some parameters - flowing, initial and final setting points, water absorption, compressive strength, and flexural strength were determined. The concrete containing 0.8% PVPr exhibited high water absorption, specifically, at 14 and 28 days, increased from 15.65% to 20.71% and from 16.74% to 21.67%, respectively. The final setting time increased from 238 min to 261 min. It was determined that the compressive strength of the cement mortar increased from 54.8 MPa to 58.5 MPa when the PVPr content was 0.8–1.0%. The flexural strength also improved due to the presence of PVPr, increasing from 11.58 MPa to 14.27 MPa. According to the FTIR characterization, the PVPr macromolecule interacts with Ca2+ and Al3+ ions. TGA analysis reveals that the chemical interaction of PVPr with calcium and aluminum ions limits its mass loss up to 4–5% until 400 °C.http://www.sciencedirect.com/science/article/pii/S240584402402070XCementPoly-N-vinylpyrrolidoneModifiedChemical interactionElectrostatic forceCompressive strength |
| spellingShingle | Shamo Z. Tapdiqov Elvin Y. Malikov Seadat F. Humbatova Fariz F. Ahmed Sevda Sh. Kazımova Ayaz M. Gulamirov Samire M. Mammadova Jamila E. Guliyeva The physical-mechanical behavior and chemical bonding nature of poly-N-vinylpyrrolidone modified cement concrete Heliyon Cement Poly-N-vinylpyrrolidone Modified Chemical interaction Electrostatic force Compressive strength |
| title | The physical-mechanical behavior and chemical bonding nature of poly-N-vinylpyrrolidone modified cement concrete |
| title_full | The physical-mechanical behavior and chemical bonding nature of poly-N-vinylpyrrolidone modified cement concrete |
| title_fullStr | The physical-mechanical behavior and chemical bonding nature of poly-N-vinylpyrrolidone modified cement concrete |
| title_full_unstemmed | The physical-mechanical behavior and chemical bonding nature of poly-N-vinylpyrrolidone modified cement concrete |
| title_short | The physical-mechanical behavior and chemical bonding nature of poly-N-vinylpyrrolidone modified cement concrete |
| title_sort | physical mechanical behavior and chemical bonding nature of poly n vinylpyrrolidone modified cement concrete |
| topic | Cement Poly-N-vinylpyrrolidone Modified Chemical interaction Electrostatic force Compressive strength |
| url | http://www.sciencedirect.com/science/article/pii/S240584402402070X |
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