Studies About the Hydration of Hybrid “Alkaline-Belite” Cement

The mechanical performance of a hybrid cement containing 48% fly ash, 48% mineralized belite clinker, 1. 5% gypsum and 2.5% Na2SO4 was analyzed and the hydration products were identified. The findings showed that the newly designed cement met European standard EN 197-1 compositional, mechanical and...

Full description

Bibliographic Details
Main Authors: M. J. Sánchez-Herrero, Ana Fernández-Jiménez, A. Palomo
Format: Article
Language:English
Published: Frontiers Media S.A. 2019-04-01
Series:Frontiers in Materials
Subjects:
Online Access:https://www.frontiersin.org/article/10.3389/fmats.2019.00066/full
_version_ 1811269487366766592
author M. J. Sánchez-Herrero
Ana Fernández-Jiménez
A. Palomo
author_facet M. J. Sánchez-Herrero
Ana Fernández-Jiménez
A. Palomo
author_sort M. J. Sánchez-Herrero
collection DOAJ
description The mechanical performance of a hybrid cement containing 48% fly ash, 48% mineralized belite clinker, 1. 5% gypsum and 2.5% Na2SO4 was analyzed and the hydration products were identified. The findings showed that the newly designed cement met European standard EN 197-1 compositional, mechanical and setting time requirements (cement type IVB). The hydration products forming in this blended “alkaline-belite” cement (as it was determined through XRD, 29Si and 27Al MAS NMR and electron microscopy) consisted in a mix of cementitious gels: C-(A)-S-H and N-(C)-A-S-H, which interacted and over time evolved toward the latter with no detriment to the mechanical strength developed by the cement.
first_indexed 2024-04-12T21:42:57Z
format Article
id doaj.art-1f0f892bafc246de8ab5c9ed6ad81d3d
institution Directory Open Access Journal
issn 2296-8016
language English
last_indexed 2024-04-12T21:42:57Z
publishDate 2019-04-01
publisher Frontiers Media S.A.
record_format Article
series Frontiers in Materials
spelling doaj.art-1f0f892bafc246de8ab5c9ed6ad81d3d2022-12-22T03:15:43ZengFrontiers Media S.A.Frontiers in Materials2296-80162019-04-01610.3389/fmats.2019.00066449690Studies About the Hydration of Hybrid “Alkaline-Belite” CementM. J. Sánchez-HerreroAna Fernández-JiménezA. PalomoThe mechanical performance of a hybrid cement containing 48% fly ash, 48% mineralized belite clinker, 1. 5% gypsum and 2.5% Na2SO4 was analyzed and the hydration products were identified. The findings showed that the newly designed cement met European standard EN 197-1 compositional, mechanical and setting time requirements (cement type IVB). The hydration products forming in this blended “alkaline-belite” cement (as it was determined through XRD, 29Si and 27Al MAS NMR and electron microscopy) consisted in a mix of cementitious gels: C-(A)-S-H and N-(C)-A-S-H, which interacted and over time evolved toward the latter with no detriment to the mechanical strength developed by the cement.https://www.frontiersin.org/article/10.3389/fmats.2019.00066/fullhybrid cementbelitic cementalkaline cementNMR-MASXRD
spellingShingle M. J. Sánchez-Herrero
Ana Fernández-Jiménez
A. Palomo
Studies About the Hydration of Hybrid “Alkaline-Belite” Cement
Frontiers in Materials
hybrid cement
belitic cement
alkaline cement
NMR-MAS
XRD
title Studies About the Hydration of Hybrid “Alkaline-Belite” Cement
title_full Studies About the Hydration of Hybrid “Alkaline-Belite” Cement
title_fullStr Studies About the Hydration of Hybrid “Alkaline-Belite” Cement
title_full_unstemmed Studies About the Hydration of Hybrid “Alkaline-Belite” Cement
title_short Studies About the Hydration of Hybrid “Alkaline-Belite” Cement
title_sort studies about the hydration of hybrid alkaline belite cement
topic hybrid cement
belitic cement
alkaline cement
NMR-MAS
XRD
url https://www.frontiersin.org/article/10.3389/fmats.2019.00066/full
work_keys_str_mv AT mjsanchezherrero studiesaboutthehydrationofhybridalkalinebelitecement
AT anafernandezjimenez studiesaboutthehydrationofhybridalkalinebelitecement
AT apalomo studiesaboutthehydrationofhybridalkalinebelitecement