Cement, Concrete and Research Literature Online Repositories (Portland Cement Association)

摘要

Cement and concrete are all around us, from sidewalks and buildings to runways and dams, and yet most of us hardly stop to think about the technical knowledge that goes into making this highly used material. Cement, a key ingredient in the quality and manufacture of concrete, has been discovered and rediscovered throughout the ages. Since the early 1900's, the Portland Cement Association's ongoing research has continued providing necessary answers for making cement and concrete longer lasting and, increasingly, more environmentally sustainable.