Research Article

A Neural Network-Based Prediction of Superplasticizers Effect on the Workability and Compressive Characteristics of Portland Pozzolana Cement-Based Mortars

Table 9

Coefficient of correlation values of target variables.

Target variablesTrainingValidationTestingCombination

Compressive strength at 1st day0.986470.985140.932450.95632
Compressive strength at 3rd day0.992350.987450.962100.97230
Compressive strength at 7th day0.994120.982130.950210.95542
Compressive strength at 14th day0.965200.965410.978540.94021
Compressive strength at 28th day0.900140.988140.982060.91566
Slump flow at 0 min0.912540.976540.965420.93654
Slump flow at 30 min0.925410.965210.975410.96541
Slump flow at 60 min0.936500.997540.967420.98785
Slump flow at 90 min0.998510.986310.987450.99856
Slump flow at 120 min0.946320.998830.983220.95120