F - Mech Eng,Light,Heat,Weapons – 16 – L
Patent
F - Mech Eng,Light,Heat,Weapons
16
L
18/636.6
F16L 9/08 (2006.01) B29C 47/00 (2006.01) C04B 16/06 (2006.01) D01D 5/20 (2006.01) D01D 5/253 (2006.01) E04C 5/04 (2006.01) E04C 5/07 (2006.01) E04H 12/12 (2006.01) E04H 17/20 (2006.01) E21D 11/00 (2006.01)
Patent
CA 1147115
ABSTRACT OF THE DISCLOSURE Reinforcing material for hydraulic substances such as cement, mortar, concrete or the like and a method for producing it. The reinforcing material consists essentially of an elongated product of a synthetic resin having pro- trusions on its surface and which was obtained by extruding and subsequent stretching. The method comprises mixing a polyethylene having a melt index of not more than 0.01 at 190 C under a load of 2.16 Kg with a polyethylene having a melt index of more than 0.01 thereby to obtain a polyethylene mixture having a melt index of 0.01 to 10, melt-extruding the polyethylene mixture under such conditions as to give an extruded product having a jagged surface and stretching the extruded product, whereby the reinforcing material having protrusions on its surface is obtained. Hydraulic substances with the re- inforcing material incorporated therein are useful for production of concrete panels, concrete pipe, concrete channels, tetrapods, sleepers, tunnels, etc.
405769
Fetherstonhaugh & Co.
Mitsui Petrochemical Industries Ltd.
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