Fabric reinforced cement
AssigneeMilliken & Company
InventorsJoseph R. Royer, Randolph S. Kohlman, Samuel E. Graham
Life of this patent
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Abstract
The present disclosure relates to cementitious articles that are reinforced with a fabric made at least partially of high modulus polyolefin monofilament fibers. Preferably, the polypropylene monofilament yarns have a 3% secant modulus of elasticity of at least 100 g/denier. The high modulus polypropylene fabric has an intrinsic resistance to the alkaline conditions present in a cementitious composite, as well as a low elongation at break. The high modulus polypropylene may contain a nucleating agent to facilitate the process of obtaining desired draw ratio.
Claims34
A reinforced cementitious article, said article being reinforced by at least one layer of fabric selected from the group consisting of a bi-directional fabric and a multi-directional fabric, said fabric layer comprising at least some continuous high modulus polypropylene yarns having a 3% secant modulus of elasticity of at least 100 grams per denier wherein said continuous high modulus polypropylene yarns comprises polyethylene in an amount of no more than 10%.
A reinforced cementitious article, said article being reinforced by at least one layer of fabric, selected from the group consisting of a bi-directional fabric and a multi-directional fabric, said fabric layer comprising at least some continuous high modulus polypropylene monofilament yarns having a 3% secant modulus of elasticity of at least 100 grams per denier wherein said continuous high modulus polypropylene yarns comprises polyethylene in an amount of no more than 10%.
Dependencies are inferred from the claim text.