Volume 2, Issue 2 (January 1980)

    Rapid Determination of the Predominant Form of Calcium Sulfate Found in Portland Cement and Its Effect on Premature Stiffening

    CODEN: CCAOAD

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    Abstract

    The object of this research program was to enable us to predict very rapidly the performance of portland cement in the field in relationship to abnormal setting characteristics. A cement water leach is prepared, and the filtrates are analyzed for calcium and sulfate. A sodium (DI) ethylenediaminetetraacetate acid (EDTA) titration is used for the calcium and a turbidimetric method is used for the sulfate. Based on the results obtained with this chemical procedure, quality control methods that fairly accurately predict whether a cement contains an excessive amount of either anhydrite or plaster of paris have been prepared.


    Author Information:

    Buchanan, CE
    Vice president of operations, Penn-Dixie Industries, Inc., Nazareth, Pa.


    Stock #: CCA10187J

    ISSN: 0149-6123

    DOI: 10.1520/CCA10187J

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    Author
    Title Rapid Determination of the Predominant Form of Calcium Sulfate Found in Portland Cement and Its Effect on Premature Stiffening
    Symposium , 0000-00-00
    Committee C01