Journal Published Online: 01 January 1980
Volume 2, Issue 2

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

CODEN: CCAGDP

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
Penn-Dixie Industries, Inc., Nazareth, Pa.
Pages: 5
Price: $25.00
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Stock #: CCA10187J
ISSN: 0149-6123
DOI: 10.1520/CCA10187J