1. Lafarge, 810 Crescent Centre, Suite 180, Franklin, TN 37067, US, e-mail: Mark.Niemuth@Lafarge-NA.com
2. Lafarge, Center of Technical Services, 334 Avro Ave., Pointe-Claire, QC, CA, H9R 5W5, e-mail: Laurent.Barcelo@Lafarge-NA.com
3. Purdue Univ. School of Civil Engineering, 550 Stadium Mall Dr., West Lafayette, IN 47907, US, e-mail: wjweiss@purdue.edu