Method of delivery of agents providing freezing and thawing resistance to cementitious compositions
AssigneeConstruction Research & Technology GmbH
InventorFrank Ong
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Abstract
A method of delivering an admixture providing freeze-thaw resistance to a cementitious composition is provided which includes the addition of a viscosity modifying admixture containing at least one of polymeric microspheres, at least partially degradable polymeric particles, or gas generating additives to cementitious compositions. The polymeric microspheres, at least partially degradable polymeric particles, and gas generating additives provide void spaces in the material matrix, and such void spaces act to increase freeze-thaw durability of the material.
Claims41
A method of delivering an admixture providing freeze-thaw resistance to a cementitious composition comprising adding to the cementitious composition a viscosity modifying admixture containing at least one of polymeric microspheres, at least partially degradable polymeric particles, or mixtures thereof, wherein the viscosity modifying admixture containing the polymeric microspheres or the degradable polymer particles is added as a single admixture to the cementitious composition.
A non-conventional frost durability admixture comprising a viscosity modifying admixture containing at least one of polymeric microspheres, at least partially degradable polymeric particles, or mixtures thereof.
A method of delivering an admixture providing freeze-thaw resistance to a cementitious composition comprising adding to the cementitious composition a viscosity modifying admixture containing a gas generating additive, wherein the viscosity modifying admixture containing the gas generating additive is added as a single admixture to the cementitious composition.
A non-conventional frost durability admixture comprising a viscosity modifying admixture containing a gas generating additive.
Dependencies are inferred from the claim text.