Self-leveling material-added fiber, self-leveling material containing the same, and method for manufacturing the self-leveling material.

JP7863444B2Active Publication Date: 2026-05-21DAIWA BOSEKI KK
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Patent Information

Authority / Receiving Office
JP · JP
Patent Type
Patents
Current Assignee / Owner
DAIWA BOSEKI KK
Filing Date
2022-03-30
Publication Date
2026-05-21

AI Technical Summary

Technical Problem

Self-leveling materials in civil engineering are prone to initial cracking during the hardening process due to weather conditions and substrate influence, and existing solutions focusing on fiber specific gravity fail to adequately suppress cracking without impairing fluidity.

Method used

Incorporation of polyolefin resin fibers with a cross-sectional shape featuring three or more protrusions and a specific length-to-width ratio (0.5 to 3) into the self-leveling material, ensuring good dispersion and maintaining fluidity while suppressing cracking.

Benefits of technology

The solution effectively suppresses initial cracking during the hardening process of self-leveling materials without reducing their fluidity, particularly in cement-based materials, by enhancing fiber dispersion and capture of the self-leveling composition.

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Patent Text Reader

Abstract

To provide a self-leveling material-added fiber capable of suppressing initial cracking in a hardening process of a self-leveling material without impairing flowability of the self-leveling material, a self-leveling material including the same, and a method for producing the self-leveling material.SOLUTION: The present invention relates to a self-leveling material-added fiber containing a polyolefin resin, wherein the self-leveling material-added fiber has three or more convex parts in a shape of the fiber cross-section, and the convex parts have a ratio Lt / Wt of a length Lt to a maximum width Wt of 0.5 or more and 3 or less.SELECTED DRAWING: Figure 1
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