Letter | Published:

Set-retarding Effects of Sugars in Portland Cement Pastes

Nature 212, 502–503 (1966) | Download Citation

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Abstract

DURING an investigation of the retardation of setting in Portland cement pastes by a series of sugars, the disaccharide αα-trehalose was found to possess only weak retarding properties, while all the other sugars studied were powerful set-retarding agents. The reason for the distinctive behaviour of αα-trehalose may help to explain the mechanisms by which organic materials retard the setting reactions in the Portland cement–water system.

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References

  1. 1

    Bruere, G. M., Nature, 199, 32 (1963).

  2. 2

    Hansen, W. C., Proc. Third Int. Symp. on the Chemistry of Cement, London (1952).

    • 3

      Hansen, W. C., Amer. Soc. Test. Mat. Special Technical Publication No. 266, 3 (1960).

      • 4

        Steinour, H. H., Amer. Soc. Test. Mat. Special Technical Publication No. 266, 25 (1960).

        • 5

          Taplin, J. H., Proc. Fourth Int. Symp. on the Chemistry of Cement, Washington (1960).

          • 6

            Sowden, J. C., Adv. in Carbohydrate Chem., 12, 35 (1957).

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          1. Division of Applied Mineralogy, C.S.I.R.O. Chemical Research Laboratories, Melbourne

            • G. M. BRUERE

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          https://doi.org/10.1038/212502a0

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