Structure formation of firing material with fly ash aggregate and binder made of sodium-calcium silicate
The work aims to study the possibility of using artificial aggregate based on high-calcium fly ash in firing material on a sodium-calcium silicate binder developed as a thermal insulation material. The specimens were made by molding from the aggregate and the binder, firing the specimens at a maximu...
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| Format: | Article |
| Language: | English |
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Taylor & Francis Group
2025-12-01
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| Series: | Cogent Engineering |
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| Online Access: | https://www.tandfonline.com/doi/10.1080/23311916.2025.2537330 |
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| author | Sergey Korotaev Nikolai Vatin Kseniia Usanova Yurii Barabanshchikov |
| author_facet | Sergey Korotaev Nikolai Vatin Kseniia Usanova Yurii Barabanshchikov |
| author_sort | Sergey Korotaev |
| collection | DOAJ |
| description | The work aims to study the possibility of using artificial aggregate based on high-calcium fly ash in firing material on a sodium-calcium silicate binder developed as a thermal insulation material. The specimens were made by molding from the aggregate and the binder, firing the specimens at a maximum temperature of 760 °C, and holding them for 10 min. In the fired samples with fly ash aggregate, shrinkage cracks up to 70 μm wide were recorded in the area of contact of the aggregate grains with the binder. The occurrence of cracks is due to insufficient swelling of the binder during firing, which did not allow compensating for the shrinkage of the binder during firing. Insufficient swelling of the binder during firing, in turn, is due to the interaction of the sodium silicate solution, which is a component of the binder, with the surface of the fly ash aggregate, which affected the decrease in the hydration of the suspension glass particles. Further research to find a component of the firing binder based on a sodium silicate solution, replacing the sodium-calcium silicate glass powder and capable of providing intensive swelling of the binder during firing are relevant for heat-insulating material with ash aggregate. |
| format | Article |
| id | doaj-art-32f3ed65d22b4f4eac09bf5884317183 |
| institution | DOAJ |
| issn | 2331-1916 |
| language | English |
| publishDate | 2025-12-01 |
| publisher | Taylor & Francis Group |
| record_format | Article |
| series | Cogent Engineering |
| spelling | doaj-art-32f3ed65d22b4f4eac09bf58843171832025-08-20T02:54:39ZengTaylor & Francis GroupCogent Engineering2331-19162025-12-0112110.1080/23311916.2025.2537330Structure formation of firing material with fly ash aggregate and binder made of sodium-calcium silicateSergey Korotaev0Nikolai Vatin1Kseniia Usanova2Yurii Barabanshchikov3Department of Buildings, Structures and Highways, National Research Mordovia State University, Saransk, The Republic of Mordovia, RussiaHydrotechnical Construction Faculty, Tashkent Institute of Irrigation and Agricultural Mechanization Engineers, Tashkent, UzbekistanScientific and Technological Complex for Digital Engineering in Construction, Peter the Great St. Petersburg Polytechnic University, St. Petersburg, RussiaScientific and Technological Complex for Digital Engineering in Construction, Peter the Great St. Petersburg Polytechnic University, St. Petersburg, RussiaThe work aims to study the possibility of using artificial aggregate based on high-calcium fly ash in firing material on a sodium-calcium silicate binder developed as a thermal insulation material. The specimens were made by molding from the aggregate and the binder, firing the specimens at a maximum temperature of 760 °C, and holding them for 10 min. In the fired samples with fly ash aggregate, shrinkage cracks up to 70 μm wide were recorded in the area of contact of the aggregate grains with the binder. The occurrence of cracks is due to insufficient swelling of the binder during firing, which did not allow compensating for the shrinkage of the binder during firing. Insufficient swelling of the binder during firing, in turn, is due to the interaction of the sodium silicate solution, which is a component of the binder, with the surface of the fly ash aggregate, which affected the decrease in the hydration of the suspension glass particles. Further research to find a component of the firing binder based on a sodium silicate solution, replacing the sodium-calcium silicate glass powder and capable of providing intensive swelling of the binder during firing are relevant for heat-insulating material with ash aggregate.https://www.tandfonline.com/doi/10.1080/23311916.2025.2537330Firing materialcoarse aggregatefly ash aggregatesodium-calcium silicate bindershrinkage cracksthermal insulation |
| spellingShingle | Sergey Korotaev Nikolai Vatin Kseniia Usanova Yurii Barabanshchikov Structure formation of firing material with fly ash aggregate and binder made of sodium-calcium silicate Cogent Engineering Firing material coarse aggregate fly ash aggregate sodium-calcium silicate binder shrinkage cracks thermal insulation |
| title | Structure formation of firing material with fly ash aggregate and binder made of sodium-calcium silicate |
| title_full | Structure formation of firing material with fly ash aggregate and binder made of sodium-calcium silicate |
| title_fullStr | Structure formation of firing material with fly ash aggregate and binder made of sodium-calcium silicate |
| title_full_unstemmed | Structure formation of firing material with fly ash aggregate and binder made of sodium-calcium silicate |
| title_short | Structure formation of firing material with fly ash aggregate and binder made of sodium-calcium silicate |
| title_sort | structure formation of firing material with fly ash aggregate and binder made of sodium calcium silicate |
| topic | Firing material coarse aggregate fly ash aggregate sodium-calcium silicate binder shrinkage cracks thermal insulation |
| url | https://www.tandfonline.com/doi/10.1080/23311916.2025.2537330 |
| work_keys_str_mv | AT sergeykorotaev structureformationoffiringmaterialwithflyashaggregateandbindermadeofsodiumcalciumsilicate AT nikolaivatin structureformationoffiringmaterialwithflyashaggregateandbindermadeofsodiumcalciumsilicate AT kseniiausanova structureformationoffiringmaterialwithflyashaggregateandbindermadeofsodiumcalciumsilicate AT yuriibarabanshchikov structureformationoffiringmaterialwithflyashaggregateandbindermadeofsodiumcalciumsilicate |