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Self-Generating Zeolite-Cement Composites

Published online by Cambridge University Press:  15 February 2011

Judith L. Larosa,
Stephen Kwan and
Michael W. Grutzeck
Judith L. Larosa
Affiliation:
Materials Research Laboratory, The Pennsylvania State University, University Park, PA 16802
Stephen Kwan
Affiliation:
Materials Research Laboratory, The Pennsylvania State University, University Park, PA 16802
Michael W. Grutzeck
Affiliation:
Materials Research Laboratory, The Pennsylvania State University, University Park, PA 16802
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Abstract

Zeolites can be synthesized in mixtures containing 80 wt% Class F fly ash and 20 wt% ordinary Portland cement if they are mixed with a concentrated NaOH solution and cured at temperatures of 60–90° C. Zeolite Y and NaP-type zeolite were grown in situ in a coexisting calcium silicate hydrate matrix. Those samples made with NaOH, which contained the zeolites, had higher compressive and flexural strengths than equivalent samples made with water.

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References

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