Patent ID: 6732482
Filing Date: 2004-05-11
Classification: C04B,C23F,E04C

Abstract:
A concrete structure comprisingfresh concrete a plurality of metal elements in contact with said fresh concrete, and a compound capable of sequestering chloride ions selected from the group consisting of 3Me(II)OÂ·R2O3Â·Me(II)(anion)2Â·nH2O where n=0 to 24 and 3Me(II)OÂ·R2O3Â·Me(II)(anion)Â·nH2O where n=0 to 18, wherein Me(II)(anion) is one or more cations selected from the group consisting of Ca, Ba, Sr, Mn and Zn; R2 is Al2, Fe2 or Cr2; anion is NO2, NO3, CO3, BO4, or OH, but when R2 is Al2, then Me(II) is not Ca, disposed within said concrete.