1. National Research Council of Canada, Construction Research Centre, 1200 Montreal Rd., Ottawa, ON K1A 0R6, CA
2. National Research Council of Canada, Canadian Construction Materials Centre, 1200 Montreal Rd., Ottawa, ON K1A 0R6, CA
3. National Research Council of Canada, Energy Mining and Environment, 1200 Montreal Rd., Ottawa, ON K1A 0R6, CA
4. Seaman Corporation, 1000 Venture Blvd., Wooster, OH 44691, US