Differences in basic standards of common cements Review Article

Considering that norms relating to cement are applied according to geographic scope, political or economic, can produce significant differences between them. In order to analyze the regulatory differences that may occur, this paper studied the regulations of the common basic standards for cement NCh (Chile), ASTM and UNE applied in Spain. These differences manifest themselves in different classifications of cement, differences in specification, differences in the tests performed to fulfill given specifications, differences in the degree of development of regulations and its relation to legal codes and enforced. I conclude that the regulations present differences in the case of the ASTM and UNE regulations, makes for greater harmonization difficult time. Cement standards including additions, contribute a product with lower environmental impact.