Quality Control and Acceptance Criteria for Concrete and its Ingredients (Yugoslav Experience)

Control tests of concrete and its ingredients are conducted on different levels during the production, acceptance and maintenance. The existing Yugoslav criteria of algorithm, and their theoretical foundation is also pointed out in the paper. Programs for the computer processing of the testing results of concrete, cement and aggregate properties have been carried out. Some recent research aspects show significant influence of time dependence in series of test results on quality criteria.