Influence of Dispersing Method on the Quality of Nano-Admixtures Homogenization in Cement Matrix
In recent years, a nano-modification of the cement composites allowed to develop a number of new materials. The use of even small amount of nano-admixture makes possible not only to improve the physico-mechanical properties of the cement materials, but also to obtain the composite with high usabilit...
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MDPI AG
2020-10-01
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| Online Access: | https://www.mdpi.com/1996-1944/13/21/4865 |
| _version_ | 1797549309212753920 |
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| author | Elżbieta Horszczaruk Paweł Łukowski Cyprian Seul |
| author_facet | Elżbieta Horszczaruk Paweł Łukowski Cyprian Seul |
| author_sort | Elżbieta Horszczaruk |
| collection | DOAJ |
| description | In recent years, a nano-modification of the cement composites allowed to develop a number of new materials. The use of even small amount of nano-admixture makes possible not only to improve the physico-mechanical properties of the cement materials, but also to obtain the composite with high usability, optimised for the given application. The basic problem of nano-modification of the cement composites remains the effectiveness of dispersing the nanomaterials inside the cement matrix. This paper deals with the effect of the type and size of the nanoparticles on the tendency to their agglomeration in the cement matrix. The main techniques and methods of dispersing the nanomaterials are presented. It has been demonstrated, on the basis of the results of testing of three nanomodifiers of 0D type (nano-SiO<sub>2</sub>, nano-Fe<sub>3</sub>O<sub>4</sub> and nano-Pb<sub>3</sub>O<sub>4</sub>), how the structure and properties of the nanomaterial affect the behaviour of the particles when dissolving in the mixing water and applying a superplasticiser. The nanoparticles had similar size of about 100 nm but different physico-chemical properties. The methods of dispersing covered the use of high-speed mechanical stirring and ultrasonication. The influence of the method of nano-modifier dispersing on the mechanical performance of the cement composite has been presented on the basis of the results of testing the cement mortars modified with 3% admixture of nano-SiO<sub>2</sub>. |
| first_indexed | 2024-03-10T15:12:51Z |
| format | Article |
| id | doaj.art-45acffaf84c04c5faafdf22592c78418 |
| institution | Directory Open Access Journal |
| issn | 1996-1944 |
| language | English |
| last_indexed | 2024-03-10T15:12:51Z |
| publishDate | 2020-10-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Materials |
| spelling | doaj.art-45acffaf84c04c5faafdf22592c784182023-11-20T19:08:50ZengMDPI AGMaterials1996-19442020-10-011321486510.3390/ma13214865Influence of Dispersing Method on the Quality of Nano-Admixtures Homogenization in Cement MatrixElżbieta Horszczaruk0Paweł Łukowski1Cyprian Seul2Department of Reinforced Concrete Structures and Concrete Technology, Faculty of Construction and Environmental Engineering, West Pomeranian University of Technology in Szczecin, 71-310 Szczecin, PolandDepartment of Building Materials Engineering, Faculty of Civil Engineering, Warsaw University of Technology, 00-637 Warsaw, PolandDepartment of Geotechnics, Faculty of Construction and Environmental Engineering, West Pomeranian University of Technology in Szczecin, 71-310 Szczecin, PolandIn recent years, a nano-modification of the cement composites allowed to develop a number of new materials. The use of even small amount of nano-admixture makes possible not only to improve the physico-mechanical properties of the cement materials, but also to obtain the composite with high usability, optimised for the given application. The basic problem of nano-modification of the cement composites remains the effectiveness of dispersing the nanomaterials inside the cement matrix. This paper deals with the effect of the type and size of the nanoparticles on the tendency to their agglomeration in the cement matrix. The main techniques and methods of dispersing the nanomaterials are presented. It has been demonstrated, on the basis of the results of testing of three nanomodifiers of 0D type (nano-SiO<sub>2</sub>, nano-Fe<sub>3</sub>O<sub>4</sub> and nano-Pb<sub>3</sub>O<sub>4</sub>), how the structure and properties of the nanomaterial affect the behaviour of the particles when dissolving in the mixing water and applying a superplasticiser. The nanoparticles had similar size of about 100 nm but different physico-chemical properties. The methods of dispersing covered the use of high-speed mechanical stirring and ultrasonication. The influence of the method of nano-modifier dispersing on the mechanical performance of the cement composite has been presented on the basis of the results of testing the cement mortars modified with 3% admixture of nano-SiO<sub>2</sub>.https://www.mdpi.com/1996-1944/13/21/4865cement compositedispersing methodsnano-modifiers |
| spellingShingle | Elżbieta Horszczaruk Paweł Łukowski Cyprian Seul Influence of Dispersing Method on the Quality of Nano-Admixtures Homogenization in Cement Matrix Materials cement composite dispersing methods nano-modifiers |
| title | Influence of Dispersing Method on the Quality of Nano-Admixtures Homogenization in Cement Matrix |
| title_full | Influence of Dispersing Method on the Quality of Nano-Admixtures Homogenization in Cement Matrix |
| title_fullStr | Influence of Dispersing Method on the Quality of Nano-Admixtures Homogenization in Cement Matrix |
| title_full_unstemmed | Influence of Dispersing Method on the Quality of Nano-Admixtures Homogenization in Cement Matrix |
| title_short | Influence of Dispersing Method on the Quality of Nano-Admixtures Homogenization in Cement Matrix |
| title_sort | influence of dispersing method on the quality of nano admixtures homogenization in cement matrix |
| topic | cement composite dispersing methods nano-modifiers |
| url | https://www.mdpi.com/1996-1944/13/21/4865 |
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