This data set has been downloaded from the UCL machine learning repository

https://archive.ics.uci.edu/ml/datasets/Concrete+Compressive+Strength

Citation Request:

NOTE: Reuse of this database is unlimited with retention of copyright notice for Prof. I-Cheng Yeh and the following published paper:

I-Cheng Yeh, "Modeling of strength of high performance concrete using artificial neural networks," Cement and Concrete Research, Vol. 28, No. 12, pp. 1797-1808 (1998). 
