Concrete structure repaired and reinforced using textile grid reinforcement and highly durable inorganic binder and method of repairing and reinforcing the same

A method of repairing and reinforcing a concrete structure using a textile grid reinforcement and a highly durable inorganic binder, the method comprising:

• a) forming a textile grid reinforcement coated with a coating material to improve adhesiveness with an old concrete structure;
• b) mixing and making a highly durable inorganic binder according to a use environment of the old concrete structure and repair and reinforcement purposes;
• c) placing the textile grid reinforcement on a surface of the old concrete structure;
• d) fixing the textile grid reinforcement to the old concrete structure using a grid fixing unit;
• e) pouring shotcrete formed of the highly durable inorganic binder on the textile grid reinforcement to form a mortar layer in which the textile grid reinforcement is embedded;
• and
• f) hardening the mortar layer to complete repairing and reinforcing of the old concrete structure,
• wherein the highly durable inorganic binder of the operation b) is a chloride penetration resistant inorganic binder having chloride penetration resistance performance or a chemical resistant inorganic binder having chemical resistance performance,
• wherein the grid fixing unit of the operation d) comprises:
• a U-shaped anchor pin as a body driven into the old concrete structure, and
• a driving impact buffer provided at an upper end of the anchor pin so as to protect the textile grid reinforcement from a driving impact when the anchor pin is driven;
• and
• the grid fixing unit passes through an upper portion of a grid weft and warp intersection when the textile grid reinforcement is placed, and is fixedly driven into the old concrete structure.

A concrete structure repaired and reinforced using a textile grid reinforcement and a highly durable inorganic binder, the concrete structure comprising:

• an old concrete structure to be repaired and reinforced;
• a textile grid reinforcement adhered to a surface of the old concrete structure to repair and reinforce the old concrete structure and coated with a coating material to improve adhesiveness with the surface of the old concrete structure;
• a highly durable inorganic binder mixed as an inorganic binder so as to have chloride penetration resistance performance or chemical resistance performance according to a use environment of the old concrete structure and repair and reinforcement purposes, and configured to adhere the textile grid reinforcement to the old concrete structure;
• and
• a grid fixing unit configured to fix the textile grid reinforcement when the textile grid reinforcement is placed on the old concrete structure,
• wherein the highly durable inorganic binder is a chloride penetration resistant inorganic binder having chloride penetration resistance performance or a chemical resistant inorganic binder having chemical resistance performance,
• wherein the grid fixing unit comprises a U-shaped anchor pin as a body driven into the old concrete structure, and a driving impact buffer provided at an upper end of the anchor pin so as to protect the textile grid reinforcement form a driving impact when the anchor pin is driven;
• the grid fixing unit passes through an upper portion of a grid weft and warp intersection when the textile grid reinforcement is placed, and is fixedly driven into the old concrete structure;
• the grid fixing unit is driven into the old concrete structure by an explosive or pneumatic tacker such that the textile grid reinforcement is firmly fixed to the old concrete structure;
• and
• the old concrete structure is a concrete structure from which a degraded portion is pre-removed, and in the case where a reinforcing bar embedded in the old concrete structure is corroded, a degraded cross section is removed up to a depth of the reinforcing bar, and an additional reinforcing bar is arranged.