The authors would like to thank all of the members of the Partnership for High Performance Concrete Technology at NIST, Dr. James Filliben of the NIST Statistical Engineering Division, Prof. David Lange of the University of Illinois at Urbana-Champaign, Ms. Marcia Simon of the Federal Highway Administration, and Mr. Jake Philip of the Nuclear Regulatory Commission, for their contributions to the various computational tools that have been described in this paper.