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Use of Fly Ash and Cu-Slag from Mexico to Make Alkali Cements and Hybrid Cements

Published online by Cambridge University Press:  01 March 2016

M. Rendón Belmonte ,
A. Palomo Sánchez ,
A. Fernández Jiménez ,
A. Torres Acosta ,
M. Martínez Madrid  and
J. T. Pérez Quiroz
M. Rendón Belmonte
Affiliation:
Materials Laboratory, Mexican Institute of Transport, P.O. Box 76700, Querétaro, México
A. Palomo Sánchez
Affiliation:
Eduardo Torroja Institute (CSIC), P.O. Box 19002, 28080 Madrid, Spain
A. Fernández Jiménez
Affiliation:
Eduardo Torroja Institute (CSIC), P.O. Box 19002, 28080 Madrid, Spain
A. Torres Acosta
Affiliation:
Materials Laboratory, Mexican Institute of Transport, P.O. Box 76700, Querétaro, México
M. Martínez Madrid
Affiliation:
Materials Laboratory, Mexican Institute of Transport, P.O. Box 76700, Querétaro, México
J. T. Pérez Quiroz
Affiliation:
Materials Laboratory, Mexican Institute of Transport, P.O. Box 76700, Querétaro, México
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Abstract

This paper focus on evaluating the ability to use Mexican fly ash (FA) and copper slag (CS) to produce alkali cements (0% OPC) or hybrid cements (20% OPC + 80% fly ash). The alkali activators used were two: 8 M NaOH solution for alkali cements and NaCl with sodium silicate for hybrid cement (HYC). Results of mechanical testing and characterization of the reaction products formed after 2 and 28 days are presented and discussed. Mechanical strength in some cases exceeded 20 MPa, at 2 days curing. The chemical characterization techniques used were X-Ray Diffraction (XRD) and scanning electron microscopy (SEM).

Keywords

compositeadditiveschemical composition
Type
Articles
Information
MRS Online Proceedings Library (OPL) , Volume 1813: Symposium 6C – Effect of SCM and Smart additives on the properties of concrete structures—2015 , 2016 , imrc2015-o015
Copyright
Copyright © Materials Research Society 2016 

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References

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