Does the time when the forms are stripped have any effect on the color of the concrete? As nearly as we can tell, all the mix proportions were the same.
Yes, it is important to determine the time when it is best to strip the forms for a given project and then maintain that same age for stripping with all of the architectural concrete forms. Differences in color will be obtained between surfaces that are stripped at various ages. Buff-colored concrete buttresses support stadium roof in Norfolk, Virginia's cultural, recreational and convention center. The concrete, consisting of white cement and tan sand and gravel, has a rough-sawn board finish made by casting against patterned fiber-glass-reinforced plastic.