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).
Colleges With The Largest Undergraduate Population: U.S. News & World Report 2013 Ranking. College can feel like a big place. Even more so if you're someone who went from a small town with a few hundred total high school students to a state university with 20,000 students. But that's nothing compared to some other schools on a list from U.S. News & World Report. The magazine ranked the colleges with the largest undergraduate student populations, compiling a short list in which all of the schools have more than 37,000 students. Most of the list features big state schools, like Ohio State University and Texas A&M University, but also has one private institution.