EFFECT OF COLOR VARIATION OF CONCRETE ON ITS FREEZING AND THAWING RESISTANCE FLAMING GORGE DAM, 1961

摘要

Distinct differences in color between interior and exterior concrete and color variations of interior concrete were reported during con¬crete placing operations at Flaming Gorge Dam in the spring of 196l. Generally, concrete containing pozzolan presented a dark, muddy appearance while exterior concrete without pozzolan was of the usual grey color. In order to determine what effect, if any, these color variations had on properties of the concrete, field-fabricated 6-by 12-inch cylinders along with samples of project cement, pozzolan, and water were shipped to the Denver laboratories for testing in concrete.