User's guide to the virtual cement and concrete testing laboratory Jeffery W. Bullard - Gaithersburg, Md. U.S. Dept. of Commerce, National Institute of Standards and Technology [2003] Title from title screen (viewed on Feb. 13, 2008) Subjects--Topical Terms: Cement--Testing--Computer simulationMicrostructure--Testing--Computer simulationConcrete--Testing--Computer simulation GPO Item No.: 0247-D (online) Gov. Doc. Class. No.: C 13.58:6968