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Title:Use of fly ash and phosphogypsum for the synthesis of belite-sulfoaluminate clinker
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)
Files:URL URL - Source URL, visit https://doi.org/10.3989/mc.2019.11617
 
.pdf PDF - Presentation file, download (2,01 MB)
MD5: F950374D96628AAC841264F827325DA6
 
Language:English
Typology:1.01 - Original Scientific Article
Organization:Logo ZAG - Slovenian National Building and Civil Engineering Institute
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.
Keywords:clinker, microstructure, fly ash, gypsum, calcium sulphoaluminate
Publication status:Published
Publication version:Version of Record
Publication date:09.02.2019
Publisher:Instituto Técnico de la Construcción y del Cemento
Year of publishing:2019
Number of pages:str. 1-12
Numbering:Vol. 69, iss. 333
PID:20.500.12556/DiRROS-17192 New window
UDC:620.1/.2
ISSN on article:0465-2746
DOI:10.3989/mc.2019.11617 New window
COBISS.SI-ID:2428775 New window
Copyright:© 2019 CSIC.
Note:Nasl. z nasl. zaslona; Opis vira z dne 13. 2. 2019; Številka članka : 176;
Publication date in DiRROS:27.10.2023
Views:848
Downloads:402
Metadata:XML DC-XML DC-RDF
:
DOLENEC, Sabina, ŽIBRET, Lea, FIDANCHEVSKA, Emilija, JOVANOV, V., ANGJUSHEVA, Biljana and DUCMAN, Vilma, 2019, Use of fly ash and phosphogypsum for the synthesis of belite-sulfoaluminate clinker. Materiales de construcción [online]. 2019. Vol. 69, no. 333, p. 1–12. [Accessed 17 March 2025]. DOI 10.3989/mc.2019.11617. Retrieved from: https://dirros.openscience.si/IzpisGradiva.php?lang=eng&id=17192
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Record is a part of a journal

Title:Materiales de construcción
Shortened title:Mater. constr.
Publisher:Instituto Técnico de la Construcción y del Cemento
ISSN:0465-2746
COBISS.SI-ID:517336089 New window

Document is financed by a project

Funder:Other - Other funder or multiple funders
Project number:C3330-17-529035
Name:Raziskovalci-2.0-ZAG-529035
Funder:Other - Other funder or multiple funders
Project number:TU1301
Name:NORM for Building materials
Acronym:NORM4BUILDING

Licences

License:CC BY 4.0, Creative Commons Attribution 4.0 International
Link:http://creativecommons.org/licenses/by/4.0/
Description:This is the standard Creative Commons license that gives others maximum freedom to do what they want with the work as long as they credit the author.

Secondary language

Language:Spanish
Abstract:Uso de cenizas volantes y fosfoyesos en la síntesis de clínkeres belíticos de sulfoaluminatos. En este estudio se han utilizado cenizas volantes y fosfoyeso como Naturally Occurring Radioactive Materials (NORM) para la síntesis de clínkeres belíticos de sulfoaluminatos. Se ha investigado la influencia de la composición de la materia prima y de las diferentes temperaturas de cocción. Los clínkeres y cementos se examinaron mediante difracción de rayos X y microscopía electrónica de barrido equipada con espectroscopía de energía dispersiva de rayos X. Los valores de compresión de los cementos se determinaron a la edad de 28 días. Las fases constituyentes de los clínkeres se identificaron como ye’elimita, fase-ß de la belita, ternesita y gehlenita, mientras que el principal producto de hidratación de la pasta de cemento se identificó como ettringita. Los resultados muestran que los cementos belíticos de sulfoaluminatos pueden ser fabricados con una resistencia a compresión de 45.9 N/mm2 mediante una cocción de la materia prima (70 % en peso de marga, 10 % de bauxita y 20 % de fosfoyeso) a una temperatura de 1320°C/1h.
Keywords:klinker, mikrostruktura, elektrofiltrski pepel, sadra, kalcijev sulfoaluminat


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