Patent ID: 6824607
Filing Date: 2004-11-30
Classification: C04B

Abstract:
A cement-bound material having a mineral binding agent and at least one of mineral filler and mineral aggregates, the material comprising:a) a mass hydrophobing agent selected from the group consisting of: stearates; siliconates; silanes; and siloxanes, wherein the mass hydrophobing agent is present in an amount ranging from 0.5 to 20% by weight with regard to the weight of the mineral binding agent; b) a corrosion inhibitor which is capable of migrating and which is selected from the group consisting of: nitrites; benzoates; amino alcohols; and sodium monofluorophosphates, wherein the corrosion inhibitor is present in an amount ranging from 0.1 to 20 kg per m3 of the cement-bound material; and c) flexible fibers with a height-width ratio of 10 to 1000, a tensile strength of 0.8 to 4.0 GPa and a modulus of elasticity of 20 to 230 GPa, wherein the fibers are present in an amount of 0.1 to 4.0% by total volume.