Sulfate resistance of ordinary Portland cement with fly ash
DOI:
https://doi.org/10.3989/mc.1989.v39.i213.813Keywords:
fly ash, sulfate resistance, flexural strength, x-ray analysis, mortars (material)Abstract
Low calcium fly ash has demonstrated to be an effective pozzolan to improve sulfate resistance of ordinary portland cement (type I). In this paper physico-chemical effects that produce this pozzolan in the mortar exposed to sulfate attack are studied. Dilution and dispersion affects are analyzed using mixes of cement with an inert mineral admixture. Mineralogical changes of mortar are studied using X-ray diffraction and the help of scanning electron microscope. The results show that fly ash delays mortar cracking phenomenon due to less content of unstable compounds in sulfate environment, greater available space to be occupied by expansive compounds and less CH present in the mortars.
Downloads
Download data is not yet available.
Downloads
Published
1989-03-30
How to Cite
Irassar, E. F., & Batic, O. R. (1989). Sulfate resistance of ordinary Portland cement with fly ash. Materiales De Construcción, 39(213), 11–20. https://doi.org/10.3989/mc.1989.v39.i213.813
Issue
Section
Research Articles
License
Copyright (c) 1989 Consejo Superior de Investigaciones Científicas (CSIC)

This work is licensed under a Creative Commons Attribution 4.0 International License.
© CSIC. Manuscripts published in both the printed and online versions of this Journal are the property of Consejo Superior de Investigaciones Científicas, and quoting this source is a requirement for any partial or full reproduction.All contents of this electronic edition, except where otherwise noted, are distributed under a “Creative Commons Attribution 4.0 International” (CC BY 4.0) License. You may read here the basic information and the legal text of the license. The indication of the CC BY 4.0 License must be expressly stated in this way when necessary.
Self-archiving in repositories, personal webpages or similar, of any version other than the published by the Editor, is not allowed.