Patent ID: 8480781

Claim:
A method of forming a honeycomb structure comprising contacting a first honeycomb segment on at least one of its outer surfaces with a cement composition comprised of inorganic fibers, a carrier fluid and a colloidal inorganic sol, wherein the fibers constitute at least about 10% by weight of the solids of the cement composition and the fibers have a multi-modal length distribution such that a portion of the fibers have lengths of at least 10 microns up to 1000 microns, and at least one other portion of the fibers are longer fibers having lengths of greater than 1 millimeter, wherein the longer fibers constitute from 3 to 30 percent of the total weight of the inorganic fibers, mechanically contacting a second honeycomb segment with the first honeycomb segment such that the cement composition is interposed between said honeycomb segments such that said honeycomb segments are adhered, firing the adhered segments sufficiently to convert the colloid to a binding phase that bonds the fibers of the cement together and bonds the cement to the honeycomb segments to form the honeycomb structure.