Title:
A method for Predicting Sulfate Durability of Concrete
Author(s):
Carl D. Harmann and Edward Mangotich
Publication:
Symposium Paper
Volume:
100
Issue:
Appears on pages(s):
2135-2152
Keywords:
cements; chemical analysis; concrete durability; oxides; deterioration; fly ash; sulfate attack; sulfate resistance; tests; Materials Research
DOI:
10.14359/2339
Date:
4/1/1987
Abstract:
A laboratory study was conducted to evaluate the effect of replacement of up to 35 percent by weight of the design cement content in a concrete mix with Class C fly ash on sulfate durability characteristics. Seven trial batches, including a control, one Class F, and five Class C ash mixes, and three types of test specimens were used. The test sulfate environment consisted of immersion in a 10 percent pH regulated sodium sulfate solution for more than two years. Weekly measurements of weight change and expansion were used to evaluate sulfate durability. Analyses of the expansion data suggest a calculated chemical compositional relationship called the oxide durability factor may be useful in predicting sulfate durability.