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).
Long Island's largest private college, it originated in 1935 as an extension of New York University (NYU) under the name Nassau College â Hofstra Memorial of New York University at Hempstead, Long Island; in 1939, the institution separated from the NYU system and gained independence as Hofstra College, and in 1963, it gained university status.