International
Concrete Repair Institute
ICRI, International Concrete Repair Institute, devoted to repairs,
manufacturers, engineers, distributors, owners with a common goal:
prolonging the useful life of concrete.
World
Of Concrete Trade Show
Historical
Timeline of Concrete
http://www.auburn.edu/academic/architecture/bsc/classes/bsc314/timeline/timeline.htm
Interesting timeline showing how concrete has been used throughout
history
