Cementville

The Alamo Cement Company was chartered in 1880 after Englishman William Loyd discovered what he believed to be a natural cement rock near San Antonio. With the help of chemist George H. Kalteyer, who confirmed that the rock's lime and clay could produce Portland cement, Loyd organized a group of investors to form the Alamo Portland and Roman Cement Company, the first Portland cement plant west of the Mississippi and one of the earliest in the United States.The original plant was powered by steam engine and ground ten barrels of cement daily.