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Ettringite binder for dense mortar, comprising calcium sulphates and a mineral compound of calcium aluminates

  • US 20060118006A1
  • Filed: 04/24/2003
  • Published: 06/08/2006
  • Est. Priority Date: 04/24/2002
  • Status: Active Grant
First Claim
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1. An ettringite binder for dense mortar comprising calcium sulphates and a calcium aluminate mineral compound, characterized in that such a calcium aluminate mineral compound comprises calcium C and aluminium A oxides, soluble and combined into one or more crystallized and/or amorphous mineralogical phases, in such proportions that:

  • the useful C/A molar ratio of the calcium aluminate mineral compound ranges from 1.2 to 2.7;

    the sum in weight of the useful (C+A) phases accounts for at least 30% of the total weight of the mineral compound.

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