Patent ID: 8968464
Filing Date: 2015-03-03
Classification: C04B

Abstract:
1. A plastic refractory material or refractory mortar, which hardens when dried which comprises: 20 to 40% by weight of a filler comprising blown closed-cell volcanic ash that is furnished with a surface water protection layer, 2 to 8% by weight of a fiber support structure comprising ceramic fibers, mineral fibers having a softening point greater than 950° C., carbon fibers and/or wollastonite, 1 to 6% by weight inorganic-organic hybrid binding agent that comprises compounded nanoparticles 50 to 100 nm in size as a dispersion in water, wherein at least one nanoparticle comprises a plurality of silicic acid particles and an acrylate polymer. 3 to 15% by weight of a modified silica comprising a mixture of silicon dioxide, kaolin or kaolinite, and balance water.