Synthesis of High-Performance CSA Cements as Low Carbon OPC Alternative

Starting from natural raw materials, cements based calcium sulphoaluminate (CSA) clinkers have been successfully obtained as an eco-friendly alternative to ordinary Portland cement. CSA-based cements with ye’elimite as the main phase have been produced over the years and are widely used today. In th...

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Main Authors: Bogdan-Catalin Marin, Georgeta Voicu, Stefania Stoleriu
Format: Article
Language:English
Published: MDPI AG 2021-11-01
Series:Materials
Subjects:
Online Access:https://www.mdpi.com/1996-1944/14/22/7057
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author Bogdan-Catalin Marin
Georgeta Voicu
Stefania Stoleriu
author_facet Bogdan-Catalin Marin
Georgeta Voicu
Stefania Stoleriu
author_sort Bogdan-Catalin Marin
collection DOAJ
description Starting from natural raw materials, cements based calcium sulphoaluminate (CSA) clinkers have been successfully obtained as an eco-friendly alternative to ordinary Portland cement. CSA-based cements with ye’elimite as the main phase have been produced over the years and are widely used today. In this regard, the present paper considers the study of hydration processes for CSA pastes prepared with a water/cement ratio of 0.5 according to the EN-197 standard and their characterization by thermal analysis (DTA-TG), X-ray diffraction analysis (XRD), and scanning electron microscopy coupled with energy dispersive X-ray spectroscopy (SEM-EDX). A mechanical strength of 60.9 MPa was the greatest achieved for mortars hardened for 28 days.
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spelling doaj.art-513a38040f444ef6b0f8cb3578a3d5562023-11-23T00:13:02ZengMDPI AGMaterials1996-19442021-11-011422705710.3390/ma14227057Synthesis of High-Performance CSA Cements as Low Carbon OPC AlternativeBogdan-Catalin Marin0Georgeta Voicu1Stefania Stoleriu2Department of Science and Engineering of Oxide Materials and Nanomaterials, Faculty of Applied Chemistry and Materials Science, University Politehnica of Bucharest, 1-7 Gheorghe Polizu Street, 011061 Bucharest, RomaniaDepartment of Science and Engineering of Oxide Materials and Nanomaterials, Faculty of Applied Chemistry and Materials Science, University Politehnica of Bucharest, 1-7 Gheorghe Polizu Street, 011061 Bucharest, RomaniaDepartment of Science and Engineering of Oxide Materials and Nanomaterials, Faculty of Applied Chemistry and Materials Science, University Politehnica of Bucharest, 1-7 Gheorghe Polizu Street, 011061 Bucharest, RomaniaStarting from natural raw materials, cements based calcium sulphoaluminate (CSA) clinkers have been successfully obtained as an eco-friendly alternative to ordinary Portland cement. CSA-based cements with ye’elimite as the main phase have been produced over the years and are widely used today. In this regard, the present paper considers the study of hydration processes for CSA pastes prepared with a water/cement ratio of 0.5 according to the EN-197 standard and their characterization by thermal analysis (DTA-TG), X-ray diffraction analysis (XRD), and scanning electron microscopy coupled with energy dispersive X-ray spectroscopy (SEM-EDX). A mechanical strength of 60.9 MPa was the greatest achieved for mortars hardened for 28 days.https://www.mdpi.com/1996-1944/14/22/7057calcium sulphoaluminate (CSA) cementshydrationraw materialscompressive strength
spellingShingle Bogdan-Catalin Marin
Georgeta Voicu
Stefania Stoleriu
Synthesis of High-Performance CSA Cements as Low Carbon OPC Alternative
Materials
calcium sulphoaluminate (CSA) cements
hydration
raw materials
compressive strength
title Synthesis of High-Performance CSA Cements as Low Carbon OPC Alternative
title_full Synthesis of High-Performance CSA Cements as Low Carbon OPC Alternative
title_fullStr Synthesis of High-Performance CSA Cements as Low Carbon OPC Alternative
title_full_unstemmed Synthesis of High-Performance CSA Cements as Low Carbon OPC Alternative
title_short Synthesis of High-Performance CSA Cements as Low Carbon OPC Alternative
title_sort synthesis of high performance csa cements as low carbon opc alternative
topic calcium sulphoaluminate (CSA) cements
hydration
raw materials
compressive strength
url https://www.mdpi.com/1996-1944/14/22/7057
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