A method of determining a measure of concrete strength performance quality for concrete produced at a production facility, the method comprising:
- producing a plurality of batches of concrete, each batch being produced based on a corresponding formulation;
- determining, for each of the plurality of batches of concrete produced at the production facility, a first difference between a measured quantity of cementitious actually used in producing the respective batch of concrete and a first quantity of cementitious specified in the corresponding formulation, thereby generating a plurality of first differences;
- determining a first standard deviation based on the plurality of first differences;
- determining, for each of the plurality of batches, a second difference between a measured quantity of water actually used in producing the respective batch of concrete and a second quantity of water specified in the corresponding formulation, thereby generating a plurality of second differences;
- determining a second standard deviation based on the plurality of second differences;
- determining a measure of concrete strength performance quality for the production facility based on the first standard deviation and the second standard deviation;
- and
- determining a measure of a cost of adjusting the formulation based on the measure of concrete strength performance quality.