DOUBLE-COMPONENT SYNTHETIC FIBRES FOR USE IN CEMENT-BASED CONSTRUCTION MATERIALS Russian patent published in 2011 - IPC D01F6/04 D01F8/04 E04C5/07 C04B16/06 C04B16/12 

Abstract RU 2423560 C2

FIELD: construction.

SUBSTANCE: fibre has an average diameter from 0.15 to 2.0 mm, is double-component of core/shell type and is made of polyolefines or other thermoplastic polymers. The fibre is produced by coextrusion with drawing ratio from 5 to 15. On completion of drawing the fibre has surface, which is structured or corrugated continuously or with intervals. Depth of structuring makes more than 10% of the average fibre diameter, and the maximum distance between tops in the formed structure in axial direction makes from 0.5 mm to 3 mm. Such fibres are applied to increase rupture strength, to improve behaviour after fracture or in general for mechanical strengthening of cement-based construction materials, in particular, concrete.

EFFECT: bundles with synthetic film may be introduced into a construction material without defects.

10 cl, 9 dwg

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RU 2 423 560 C2

Authors

Kaufmann Jozef

Shvitter Ojgen

Dates

2011-07-10Published

2006-09-21Filed