Evaluation of paving stone production quality

The results of tests carried out for the company involved in the production of paving stones. The study used the Pareto-Lorenz diagram. After analyzing the production process 10 discrepancies were identified. The Pareto-Lorenz diagram shows that the highest value is cumulative deficiency "uneven concrete mix to fill the form on the structural layer and a top." The results indicate that another cause of incompatibilities in terms of the cumulative value is the "poorly chosen concrete mix".