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Method Overview

The purpose of repairing cracks that occur in concrete structures is to prevent corrosion of the reinforcing steel. The main objective is to restore the protective, non-conductive cover around the rebar using cementitious materials. In crack repair, what is required is not excessively high adhesive strength, but rather the restoration of the structure to its original condition.

By using ultra-fine particle cement injection material, it is now possible to inject into cracks ranging from small to large.In addition, various materials can be selected and used in combination depending on the cause of the cracks, and it can be used not only to fill cracks, but also as an injection method to improve and prevent deterioration of concrete structures.

◆Crack full injection system

The bevel plug has a built-in check valve that is normally closed. By inserting the included valve release pin, the check valve will be opened.

①Inlet

Using a hand gun, inorganic injection material is injected into the plug at the appropriate pressure.

②Material leak port

By inserting a check valve opening pin, it functions as a leak check port for the material filled inside the crack.

③Air vent

By inserting the check valve release pin, the air inside the crack is released, releasing the internal pressure that inhibits injection. Check for material leaks from plugs close to the injection port (usually from bottom to top), and move from those plugs in order.