Concrete is a mixture of cement, water, sand, gravel, crushed rock, or other aggregates. Sometimes, one or more admixtures are added to change certain characteristics of the concrete, such as workability, durability, and time of hardening.
Top 100 Colleges by Highest Tuition. Here are the top 100 most expensive colleges by tuition for the 2008-2009 school year. The latest numbers can be found in our most expensive colleges ranking. Notes: Some colleges like Bates College, Colby College, Middlebury College, and Union College have a comprehensive fee (tuition + room/board).
The 10 Largest College Campuses in the U.S. Students at Berry College in northwest Georgia enjoy plenty of room to roam. The Berry campus, tucked into the foothills of the Appalachian Mountains, covers more than 27,000 acres. With an enrollment of nearly 2,250, each student at Berry can claim whatâs essentially his or her own 12-acre plot.