Mat-Faced Cementitious Article and Method for Preparing Same
AssigneeUnited States Gypsum Company
InventorsMichael P. SHAKE, Qingxia LIU, Salvatore C. IMMORDINO, Dick C. ENGBRECHT, Donald L. ROELFS, Christopher R. NELSON, Wayne J. ROHRBAUGH, Joseph J. FEDORIS
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Abstract
A cementitious composite article comprising (a) a cementitious core, (b) a skim coat cementitious layer in contact with the cementitious core having a density greater than the cementitious core, and (c) a fibrous mat comprising (i) microfibers and (ii) continuous fibers having a length of about 0.6 cm or more, wherein the fibrous mat comprises an inner surface in contact with the skim coat cementitious layer; as well as a method for manufacturing same.
Claims20
A mat-faced cementitious composite article comprising:
- (a) a cementitious core;
- (b) a skim coat cementitious layer in contact with the cementitious core having a density greater than the cementitious core;
- and
- (c) a fibrous mat comprising (i) microfibers and (ii) continuous fibers having a length of about 0.6 cm or more;
- wherein the fibrous mat comprises an inner surface facing the skim coat cementitious layer.
A method of making a mat-faced cementitious article comprising:
- (a) providing a fibrous mat having an inner surface, wherein the fibrous mat comprises (i) microfibers and (ii) continuous fibers having a length of about 0.6 cm or more;
- (b) depositing an aqueous skim coat layer of cementitious slurry on the inner surface of the first fibrous mat;
- and
- (c) depositing an aqueous cementitious core slurry on top of the skim coat slurry to form a mat-faced composite article.
Dependencies are inferred from the claim text.