| Title: | Use of fly ash and phosphogypsum for the synthesis of belite-sulfoaluminate clinker |
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| Authors: | ID Dolenec, Sabina (Author)
ID Žibret, Lea (Author)
ID Fidanchevska, Emilija (Author)
ID Jovanov, V. (Author)
ID Angjusheva, Biljana (Author)
ID Ducman, Vilma (Author) |
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| Files: |  URL - Source URL, visit https://doi.org/10.3989/mc.2019.11617
 PDF - Presentation file, download (2,01 MB)
MD5: F950374D96628AAC841264F827325DA6
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| Language: | English |
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| Typology: | 1.01 - Original Scientific Article |
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| Organization: |  ZAG - Slovenian National Building and Civil Engineering Institute
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| Abstract: | Fly ash and phosphogypsum were used as Naturally Occurring Radioactive Materials (NORM) by-products for the synthesis of belite-sulfoaluminate clinkers. The influence of raw mixture composition and firing temperature was investigated. Clinkers and cements were examined by X-ray powder diffraction and scanning electron microscopy with energy dispersive X-ray spectroscopy. The compressive strength of the cements was determined after 28 days. Clinker phases identified included ye’elimite, ß-phase of belite, ternesite and gehlenite, while the main hydration product of the cement pastes was ettringite. The results showed that belite-sulfoaluminate cements can be fabricated with a compressive strength of 45.9 N/mm2 by firing the raw mixture (70 wt.% marl, 10 wt.% bauxite and 20 wt.% phosphogypsum) at a temperature of 1320°C/1h. |
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| Keywords: | clinker, microstructure, fly ash, gypsum, calcium sulphoaluminate |
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| Publication status: | Published |
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| Publication version: | Version of Record |
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| Publication date: | 09.02.2019 |
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| Publisher: | Instituto Técnico de la Construcción y del Cemento |
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| Year of publishing: | 2019 |
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| Number of pages: | str. 1-12 |
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| Numbering: | Vol. 69, iss. 333 |
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| PID: | 20.500.12556/DiRROS-17192  |
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| UDC: | 620.1/.2 |
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| ISSN on article: | 0465-2746 |
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| DOI: | 10.3989/mc.2019.11617 |
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| COBISS.SI-ID: | 2428775 |
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| Copyright: | © 2019 CSIC. |
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| Note: | Nasl. z nasl. zaslona;
Opis vira z dne 13. 2. 2019;
Številka članka : 176;
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| Publication date in DiRROS: | 27.10.2023 |
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| Views: | 714 |
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| Downloads: | 341 |
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| Metadata: |    |
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