GLASS-REINFORCED PLASTIC REINFORCEMENT (VERSIONS) Russian patent published in 2002 - IPC

FIELD: construction engineering, particularly, glass-reinforced plastic reinforcement. SUBSTANCE: according to the first version, glass-reinforced plastic reinforcement has strength rod from high-strength polymer material and winding with steps. Steps are made in the form of bundle of threads impregnated with binder and wound by spiral with tension equals to 1/2-1/10 of diameter of bundle pressing in surface of strength rod. Diameter of bundle winding amounts up to 2d, where d is diameter of strength rod. In reinforcement made according to the second version, steps are made in the form of bundle of threads impregnated with binder and wound by spiral with tension equals to 1/2-1/10 of diameter of bundle pressing in surface of strength rod, with spiral grooves alternating with steps made on strength rod. Diameter of bundle winding amounts up to 2d. In reinforcement made according to the third version, steps are made in the form of bundle of threads impregnated with binder and wound by spiral on rod with tension equals to 1/2-1/10 of diameter of bundle pressing in surface of strength rod. In this case, rod is provided with one more bundle of threads with winding wound opposite to that of the first bundle, and diameter of the first bundle amounts to 2d. Said reinforcement is used in reinforcing of heat-insulating wall structures, cast-in-situ reinforced-concrete and prefabricated structures, for use in structural members of buildings in the form of separate rods, in reinforcing of ground of bases of buildings and structures, including bases of main highways and roads, for anchorage in ground of retaining walls and structures. EFFECT: increased anchorage characteristics of reinforcement due to specific design. 5 cl, 8 dwg