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Fabric reinforced cement

A technology for reinforced cement and fabric reinforcement, applied in the directions of nonwovens, textiles and papermaking, thin material processing, etc., can solve the problems of easy corrosion or degradation, insufficient tensile modulus, panels, composite materials and sheet tensile reinforcements, etc.

Inactive Publication Date: 2007-02-28
MILLIKEN & CO
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Unfortunately, these materials have serious drawbacks: they are prone to corrosion or degradation when they enter the environment of use (i.e. they act as reinforcing materials in that environment)
[0010] Typical polypropylene fabrics, although inherently resistant to the alkaline conditions found in cementitious materials and do not corrode, do not have sufficient tensile modulus for their use as tensile fabrics for cementitious products, panels, composites, and boards. Stretch reinforcement

Method used

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Embodiment Construction

[0024] All patents and applications mentioned herein are hereby incorporated by reference in their entirety.

[0025] The present invention relates to fabric reinforcements comprising high modulus polyolefin monofilament yarns for cementitious products, composites, panels and boards. This high modulus monofilament yarn is polyolefin based and consists primarily of polypropylene. High modulus yarns, optionally including nucleating agents, are made according to the teachings herein.

[0026] The term "polypropylene" is intended to include any polymeric composition comprising propylene monomers, either alone or in combination with other randomly selected and oriented polyolefins, dienes or other monomers such as ethylene, butene and the like ) in mixtures or copolymers. The term also includes different configurations and arrangements of the monomeric components (eg, syndiotactic, isotactic, and the like). Thus, as applied to fibers, the term is intended to include actual stran...

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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 100g / 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.

Description

[0001] Cross References to Related Applications [0002] This application is a continuation-in-part of US Patent Application Serial No. 10 / 786,272, filed February 25, 2004, entitled "Fabric Reinforced Cement," which is hereby incorporated by reference in its entirety. technical field [0003] The present invention relates generally to reinforced cementitious articles, and in particular, the present invention relates to cementitious articles, panels, composites and boards reinforced with fabrics comprising high modulus polypropylene yarns which Highly alkaline conditions are inherently tolerant. Background technique [0004] The use of reinforcing materials for cementitious products, composites, boards and panels is well known in the cement and construction industries. In general, cement tends to be strong under compression, but tends to crumble and fail easily under tension, shear, bending, curing or shrinkage forces and must therefore be reinforced. For example, roads usi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D02G3/00B32B7/00D04H3/00E04C2/06
CPCY10T428/24107Y10T428/249952Y10T428/24058E04C2/06Y10T428/24099Y10T428/249924Y10T428/24124
Inventor J·R·罗耶S·E·格雷姆R·S·科尔曼
Owner MILLIKEN & CO
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