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Method Overview

The purpose of repairing cracks that have occurred in concrete structures is to prevent corrosion of the internal steel.The main focus is on restoring the non-conductive coating on the rebar using cementitious materials.Furthermore, what is required for crack repair is not excessive adhesive strength, but rather restoring the structure to its original state.

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.