MECHANICAL AND CHEMICAL ACTIVATION OF BLAST FURNACE SLAG AND ITS INFLUENCE ON THE MECHANICAL PROPERTIES OF THE RESULTING CEMENT PASTE
The usage of waste materials is a very important global topic. The large amount of waste everywhere in the world needs to be processed or disposed. Landfilling is not an option anymore, because of European legislation and restrictions. A lot of studies are trying to develop new options or possibilit...
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Czech Technical University in Prague
2021-04-01
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| Series: | Acta Polytechnica CTU Proceedings |
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| Online Access: | https://ojs.cvut.cz/ojs/index.php/APP/article/view/7197 |
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| author | Jan Horych Pavel Tesárek Zdeněk Prošek |
| author_facet | Jan Horych Pavel Tesárek Zdeněk Prošek |
| author_sort | Jan Horych |
| collection | DOAJ |
| description | The usage of waste materials is a very important global topic. The large amount of waste everywhere in the world needs to be processed or disposed. Landfilling is not an option anymore, because of European legislation and restrictions. A lot of studies are trying to develop new options or possibilities of using waste materials. This research is trying to find a way to process blast furnace slag. A high-speed mill was used for the mechanical activation. Chemical activation was used as the next step of activation. There are many materials that could be used, but in this study we used slaked lime and water-glass. Slaked lime had a positive effect on mechanical properties. Samples had higher compressive strength but the effect was limited only for 5 wt. %. Another used material was water-glass, but in this case, there was a significant negative effect. Compressive strength and flexural strength were significantly reduced. |
| format | Article |
| id | doaj-art-55df61cde3d84db0ab4ab3042d56524e |
| institution | DOAJ |
| issn | 2336-5382 |
| language | English |
| publishDate | 2021-04-01 |
| publisher | Czech Technical University in Prague |
| record_format | Article |
| series | Acta Polytechnica CTU Proceedings |
| spelling | doaj-art-55df61cde3d84db0ab4ab3042d56524e2025-08-20T03:14:50ZengCzech Technical University in PragueActa Polytechnica CTU Proceedings2336-53822021-04-0130303510.14311/APP.2021.30.00304435MECHANICAL AND CHEMICAL ACTIVATION OF BLAST FURNACE SLAG AND ITS INFLUENCE ON THE MECHANICAL PROPERTIES OF THE RESULTING CEMENT PASTEJan Horych0Pavel Tesárek1Zdeněk Prošek2Czech Technical University in Prague, Faculty of Civil Engineering, Department of Mechanics, Thákurova 7, 166 29 Prague 6, Czech RepublicCzech Technical University in Prague, Faculty of Civil Engineering, Department of Mechanics, Thákurova 7, 166 29 Prague 6, Czech RepublicCzech Technical University in Prague, Faculty of Civil Engineering, Department of Mechanics, Thákurova 7, 166 29 Prague 6, Czech RepublicThe usage of waste materials is a very important global topic. The large amount of waste everywhere in the world needs to be processed or disposed. Landfilling is not an option anymore, because of European legislation and restrictions. A lot of studies are trying to develop new options or possibilities of using waste materials. This research is trying to find a way to process blast furnace slag. A high-speed mill was used for the mechanical activation. Chemical activation was used as the next step of activation. There are many materials that could be used, but in this study we used slaked lime and water-glass. Slaked lime had a positive effect on mechanical properties. Samples had higher compressive strength but the effect was limited only for 5 wt. %. Another used material was water-glass, but in this case, there was a significant negative effect. Compressive strength and flexural strength were significantly reduced.https://ojs.cvut.cz/ojs/index.php/APP/article/view/7197activationblast furnace slagcement replacementslaked limewater-glass. |
| spellingShingle | Jan Horych Pavel Tesárek Zdeněk Prošek MECHANICAL AND CHEMICAL ACTIVATION OF BLAST FURNACE SLAG AND ITS INFLUENCE ON THE MECHANICAL PROPERTIES OF THE RESULTING CEMENT PASTE Acta Polytechnica CTU Proceedings activation blast furnace slag cement replacement slaked lime water-glass. |
| title | MECHANICAL AND CHEMICAL ACTIVATION OF BLAST FURNACE SLAG AND ITS INFLUENCE ON THE MECHANICAL PROPERTIES OF THE RESULTING CEMENT PASTE |
| title_full | MECHANICAL AND CHEMICAL ACTIVATION OF BLAST FURNACE SLAG AND ITS INFLUENCE ON THE MECHANICAL PROPERTIES OF THE RESULTING CEMENT PASTE |
| title_fullStr | MECHANICAL AND CHEMICAL ACTIVATION OF BLAST FURNACE SLAG AND ITS INFLUENCE ON THE MECHANICAL PROPERTIES OF THE RESULTING CEMENT PASTE |
| title_full_unstemmed | MECHANICAL AND CHEMICAL ACTIVATION OF BLAST FURNACE SLAG AND ITS INFLUENCE ON THE MECHANICAL PROPERTIES OF THE RESULTING CEMENT PASTE |
| title_short | MECHANICAL AND CHEMICAL ACTIVATION OF BLAST FURNACE SLAG AND ITS INFLUENCE ON THE MECHANICAL PROPERTIES OF THE RESULTING CEMENT PASTE |
| title_sort | mechanical and chemical activation of blast furnace slag and its influence on the mechanical properties of the resulting cement paste |
| topic | activation blast furnace slag cement replacement slaked lime water-glass. |
| url | https://ojs.cvut.cz/ojs/index.php/APP/article/view/7197 |
| work_keys_str_mv | AT janhorych mechanicalandchemicalactivationofblastfurnaceslaganditsinfluenceonthemechanicalpropertiesoftheresultingcementpaste AT paveltesarek mechanicalandchemicalactivationofblastfurnaceslaganditsinfluenceonthemechanicalpropertiesoftheresultingcementpaste AT zdenekprosek mechanicalandchemicalactivationofblastfurnaceslaganditsinfluenceonthemechanicalpropertiesoftheresultingcementpaste |