Additive-incorporated building materials
AssigneeYissum Research Development Company of the Hebrew University of Jerusalem
InventorsYoel SASSON, Hani GNAYEM
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Abstract
Bismuth oxyhalide-added building materials are disclosed. The building material is a binder-containing building material, which sets and harden when mixed with water, such as gypsum and cement-based building material. Methods for applying bismuth oxyhalide—comprising coatings onto surfaces of building materials, to protect them against pollutants, are described.
Claims19
Bismuth oxyhalide-added building material, wherein the bismuth oxyhalide is selected from the group consisting of BiOClyBr1-y [0.6≦y≦0.95];
- Bi(0)doped-BiOCl;
- Bi(0)doped-BiOBr;
- and
- Bi(0)doped-BiOClyBr1-y [0.6≦y≦0.95].
Bismuth oxyhalide-added gypsum according 3, wherein the bismuth oxyhalide-added building material is bismuth oxyhalide-coated gypsum.
A method for preparing bismuth oxyhalide-added building material, wherein the building material is a binder-containing building material which sets and harden when mixed with water, comprising combining the corresponding dry raw material of the building material with water and adding bismuth oxyhalide microspheres during the setting stage of said building material, wherein the bismuth oxyhalide is selected from the group consisting of:
- BiOClyBr1-y [0.6≦y≦0.95];
- Bi(0)doped-BiOCl;
- Bi(0)doped-BiOBr;
- and
- Bi(0)doped-BiOClyBr1-y [0.6≦y≦0.95]
Dependencies are inferred from the claim text.