Mohammad I.M. Alzeer, Hoang Nguyen, Tapio Fabritius, Harisankar Sreenivasan, Ville-Veikko Telkki, Anu M. Kantola, Christopher Cheeseman, Mirja Illikainen, Paivo Kinnunen, On the hydration of synthetic aluminosilicate glass as a sole cement precursor, Cement and Concrete Research, Volume 159, 2022, 106859, ISSN 0008-8846, https://doi.org/10.1016/j.cemconres.2022.106859
On the hydration of synthetic aluminosilicate glass as a sole cement precursor
|Author:||Alzeer, Mohammad I. M.1; Nguyen, Hoang1; Fabritius, Tapio2;|
1Fibre and Particle Engineering Research Unit, University of Oulu, Pentti Kaiteran katu 1, 90014 Oulu, Finland
2Optoelectronics and Measurement Techniques Research Unit, University of Oulu, Pentti Kaiteran katu 1, 90014 Oulu, Finland
3NMR Research Unit, University of Oulu, Pentti Kaiteran katu 1, 90014 Oulu, Finland
4UKCRIC Advanced Infrastructure Materials Laboratory, Department of Civil and Environmental Engineering, Imperial College London, SW7 2BU, UK
|Online Access:||PDF Full Text (PDF, 3.1 MB)|
|Persistent link:|| http://urn.fi/urn:nbn:fi-fe2022050432545
|Publish Date:|| 2022-06-20
This paper reports on the synthesis and characteristics of a novel aluminosilicate glass-based cementitious binder. We investigated the hydration kinetics, degree of reaction, and phase assemblage of the glass via XRD, DTG, ²⁷Al and ²⁹Si MAS NMR, FTIR, SEM/EDS and thermodynamic modelling. The glass exhibits hydraulic properties in which the binder developed impressive compressive strength at early age. The main hydration products are an intermixed of Na and/or Al incorporated in C–S–H gel. Hydrotalcite precipitated with slower rate and thus may generate crystallization pressure on the binder at late stage. The glass reached a high degree of hydration (ca. 73 % based on quantitative ²⁹Si NMR analysis) without using any activators or co-binding systems. Therefore, the developed glass reported herein has high potential as a new low-carbon cementitious binder since it can be synthesised from naturally occurring carbonate free silicate minerals.
Cement and concrete research
|Type of Publication:||
A1 Journal article – refereed
|Field of Science:||
116 Chemical sciences
This work was carried out with the support of the Centre for Material Analysis, University of Oulu, Finland. MIMA is grateful for the support from University of Oulu Kvantum Institute strategic research funding (CARBO-CEM). HN thanks the support from the University of Oulu and the Academy of Finland (Profi5 326291). PK is grateful for the support from the University of Oulu & the Academy of Finland (Profi5 326291), as well as for the Academy of Finland grant no. 322085. VVT acknowledges the financial support of the European Research Council (ERC) under Horizon 2020 (H2020/2018-2022/ERC grant agreement no. 772110). VVT and AMK are grateful to Kvantum Institute of the University of Oulu for financial support.
|EU Grant Number:||
(772110) UFLNMR - Ultrafast Laplace NMR
|Academy of Finland Grant Number:||
322085 (Academy of Finland Funding decision)
© 2022 The Authors. Published by Elsevier Ltd. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/).