Issue |
MATEC Web of Conferences
Volume 11, 2014
International Congress on Materials & Structural Stability
|
|
---|---|---|
Article Number | 01001 | |
Number of page(s) | 3 | |
Section | Materials & Pathologies | |
DOI | https://doi.org/10.1051/matecconf/20141101001 | |
Published online | 28 April 2014 |
Specific Examples of Hybrid Alkaline Cement
Department of cement and materials recycling, Eduardo Torroja Institute of construction sciences, (IETcc-CSIC), Madrid, Spain
Hybrid alkaline cements are obtained by alkali-activating cementitious blends in the Na2O-CaO-SiO2-Al2O3-H2O system. The present paper discusses the results of activating different cementitious blends containing a low OPC clinker content (<30%) and a high content of supplementary cementitious materials (such as Fly ash). To obtain useful early mechanical strengths (> 15MPa a 2 days) different alkaline activators were used (liquid and solid). The reaction products obtained were also characterised by XRD, SEM/EDX and 27Al and 29Si NMRMAS. The results showed that the main reaction product was a mix of cementitious gels C-A-S-H and (N,C)-A-S-H, and that their relative proportions were strongly influenced by the calcium content in the initial binder
© Owned by the authors, published by EDP Sciences, 2014
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 2.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.