Can additional water be added to the concrete mix after arrival onsite?
A. Each concrete supplier has different mixing procedures. Some plants add all mix water prior to leaving the plant. Some add a portion at the plant with additional to be added onsite. It is important to determine the applicable procedure prior to placing concrete. No water is to be added that exceeds the amount used for the design mix. Most concrete tickets require contractor waiver signature to add more water, however this should not be allowed.
