The Effect of Superabsorbent Polymer and Nano-Silica on the Properties of Blended Cement
Incorporating superabsorbent polymer (SAP), which has the abilities of absorption and desorption in cement mortar, can achieve the effect of internal curing. It is expected that the incorporation of nano-silica will improve the workability and strength in cement mortar/concrete. Hence, this study ai...
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| Format: | Article |
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MDPI AG
2021-11-01
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| Online Access: | https://www.mdpi.com/2073-4352/11/11/1394 |
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| author | Renuka Senthil Muthalvan Suraj Ravikumar Siva Avudaiappan Mugahed Amran Radhamanohar Aepuru Nikolai Vatin Roman Fediuk |
| author_facet | Renuka Senthil Muthalvan Suraj Ravikumar Siva Avudaiappan Mugahed Amran Radhamanohar Aepuru Nikolai Vatin Roman Fediuk |
| author_sort | Renuka Senthil Muthalvan |
| collection | DOAJ |
| description | Incorporating superabsorbent polymer (SAP), which has the abilities of absorption and desorption in cement mortar, can achieve the effect of internal curing. It is expected that the incorporation of nano-silica will improve the workability and strength in cement mortar/concrete. Hence, this study aims to examine the effect of SAP and nano-silica on the properties of blended cement paste. The experimental investigations via several tests such as consistency, setting time, compressive strength, UPV, and acid test were performed. Based on energy-dispersive X-ray analysis (EDX) test and scanning electron microscopy (SEM) test results, the morphology of hydration products and mineral compositions of cement paste were further analysed, and the mechanism of SAP with 0.2% and 0.3% and NS with lower percentages ranging from 0.5% to 2% on the performance of cement paste was studied. The results exhibited that incorporating SAP in various percentages from 0.5% to 2% prolonged the initial setting time, reduced the fluidity, and increased the water content and formation of pores. In addition, various percentages ranging from 0.5% to 2% of NS were added; thereby, an increase in the hydration process and refining the microstructure was found. The microscopic test results showed that the blended cement paste can effectively improve the denser microstructure and refine the pore structure. |
| first_indexed | 2024-03-10T05:35:09Z |
| format | Article |
| id | doaj.art-26071378cf7f469c85cebed9329c1b79 |
| institution | Directory Open Access Journal |
| issn | 2073-4352 |
| language | English |
| last_indexed | 2024-03-10T05:35:09Z |
| publishDate | 2021-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Crystals |
| spelling | doaj.art-26071378cf7f469c85cebed9329c1b792023-11-22T22:58:57ZengMDPI AGCrystals2073-43522021-11-011111139410.3390/cryst11111394The Effect of Superabsorbent Polymer and Nano-Silica on the Properties of Blended CementRenuka Senthil Muthalvan0Suraj Ravikumar1Siva Avudaiappan2Mugahed Amran3Radhamanohar Aepuru4Nikolai Vatin5Roman Fediuk6Department of Civil Engineering, College of Engineering Guindy, Anna University, Chennai 600025, IndiaDepartment of Civil Engineering, College of Engineering Guindy, Anna University, Chennai 600025, IndiaDepartamento de Ingeniería en Obras Civiles, Universidad de Santiago de Chile, Santiago 9160000, ChileDepartment of Civil Engineering, College of Engineering, Prince Sattam Bin Abdulaziz University, Alkharj 16273, Saudi ArabiaDepartamento de Ingeniería Mecánica, Facultad de Ingeniería, Universidad Tecnologica Metropolitana, Santiago 8330378, ChilePeter the Great St. Petersburg Polytechnic University, 195251 St. Petersburg, RussiaPolytechnic Institute, Far Eastern Federal University, 690922 Vladivostok, RussiaIncorporating superabsorbent polymer (SAP), which has the abilities of absorption and desorption in cement mortar, can achieve the effect of internal curing. It is expected that the incorporation of nano-silica will improve the workability and strength in cement mortar/concrete. Hence, this study aims to examine the effect of SAP and nano-silica on the properties of blended cement paste. The experimental investigations via several tests such as consistency, setting time, compressive strength, UPV, and acid test were performed. Based on energy-dispersive X-ray analysis (EDX) test and scanning electron microscopy (SEM) test results, the morphology of hydration products and mineral compositions of cement paste were further analysed, and the mechanism of SAP with 0.2% and 0.3% and NS with lower percentages ranging from 0.5% to 2% on the performance of cement paste was studied. The results exhibited that incorporating SAP in various percentages from 0.5% to 2% prolonged the initial setting time, reduced the fluidity, and increased the water content and formation of pores. In addition, various percentages ranging from 0.5% to 2% of NS were added; thereby, an increase in the hydration process and refining the microstructure was found. The microscopic test results showed that the blended cement paste can effectively improve the denser microstructure and refine the pore structure.https://www.mdpi.com/2073-4352/11/11/1394cement pastesuperabsorbent polymernano-silicasetting timemicroscopic studiesstrength |
| spellingShingle | Renuka Senthil Muthalvan Suraj Ravikumar Siva Avudaiappan Mugahed Amran Radhamanohar Aepuru Nikolai Vatin Roman Fediuk The Effect of Superabsorbent Polymer and Nano-Silica on the Properties of Blended Cement Crystals cement paste superabsorbent polymer nano-silica setting time microscopic studies strength |
| title | The Effect of Superabsorbent Polymer and Nano-Silica on the Properties of Blended Cement |
| title_full | The Effect of Superabsorbent Polymer and Nano-Silica on the Properties of Blended Cement |
| title_fullStr | The Effect of Superabsorbent Polymer and Nano-Silica on the Properties of Blended Cement |
| title_full_unstemmed | The Effect of Superabsorbent Polymer and Nano-Silica on the Properties of Blended Cement |
| title_short | The Effect of Superabsorbent Polymer and Nano-Silica on the Properties of Blended Cement |
| title_sort | effect of superabsorbent polymer and nano silica on the properties of blended cement |
| topic | cement paste superabsorbent polymer nano-silica setting time microscopic studies strength |
| url | https://www.mdpi.com/2073-4352/11/11/1394 |
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