ROD FOR CONCRETE REINFORCEMENT AND METHOD OF ITS MANUFACTURING Russian patent published in 2010 - IPC B32B17/04 C04B26/14 C08L63/00 E04C5/07 

FIELD: construction.

SUBSTANCE: rod is described, which is made of polymer binder and fibrous filler (wt %) 49.8 - 69.13. As fibrous filler, threads of glass basalt fibres are used. Polymer binder contains the following components (wt %): epoxide resin ED-20 - 14.1-27.6, isomethyl tetrahydrophthalic anhydride - 13.6-22.1, product of reaction between epoxide aliphatic resin TEG-1 and urethane rubber - 0.12-0.42, accelerator UP-606/2 - 0.05-0.08. Method for manufacturing of rod consists in the fact that at least one thread of fibrous filler may be used to shape at least one reinforcing cord, besides mass fraction of reinforcing cords shall not exceed 30% of overall filler mass. Threads and cords are thermally treated, impregnated with polymer binder, squeezed and combined into a single rod by means of helical winding by wrapping cord. Shaped rod is pulled through three heat chambers in the mode of stepped heating. Speed of pulling is 0.055-0.067 m/s.

EFFECT: high strength properties of armature rod.

5 cl, 7 ex, 1 tbl