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.

Issue Section:
Research Papers
Keywords:
cements, calcium sulfates, portland cements, stiffening

References

1.
Hansen
,
W. C.
, “
Quick and False Set in Portland Cements
,”
Materials Research and Standards
 0025-5394, Vol.
1
, No.
10
,
10
1961
, pp.
791
-
797
.
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