首页>
外国专利>
A crack repair method that automatically controls the pressure of the injection device and at the same time injects high-quality crack repair agent and injects an appropriate amount of crack repair agent according to the crack specification to prevent damage to the structure
A crack repair method that automatically controls the pressure of the injection device and at the same time injects high-quality crack repair agent and injects an appropriate amount of crack repair agent according to the crack specification to prevent damage to the structure
The present invention relates to a construction method for repairing cracks in concrete, and to be more specific, it is a repair method for restoring durability of cracks that occur frequently when applied to cracks in concrete structures, etc., and check the cracks. After face treatment, sealing with putty agent, drilling an insertion hole for installing a packer, inserting a packer into the insertion hole and installing it so that the upper part of the packer protrudes, and installing an injection device into the packer It is connected to the upper part of the valve and injects a high-quality crack repair agent at high pressure by automatically controlled air pressure, allowing faster injection than low pressure. A crack repair agent can be injected, and after the packer is removed, a crack repair agent is additionally injected into the insertion hole from which the packer is removed, cured, and then coated with a surface protection material to finish. Cracks that can prevent damage to the structure by filling the adhesion strength and durability, while automatically controlling the pressure of the injection device for durability and workability, injecting a high-quality crack repair agent and injecting an appropriate amount of the crack repair agent according to the crack specifications A technical field related to a repair method is disclosed. In addition, in the present invention, the latex mixed with the curing agent and the putty agent serves to fill the voids of the epoxy resin and the voids of the concrete structure, thereby improving adhesion with the concrete structure, excellent waterproofing and long-term durability. can In addition, the present invention includes an epoxy resin, a filler, a curing agent, a fiber, etc. in the putty agent to improve adhesion to the vicinity of the cracked site, and at the same time to increase excellent waterproofness and long-term durability. In addition, the present invention seals cracks because alkoxysilane and silica sol or nanosilicate penetrate into cracks and react with calcium hydroxide of cement existing in cracks, and further penetrates into capillaries of cement and impregnates to form a water repellent layer Excellent waterproofing effect can be obtained. In addition, the present invention injects a crack repair agent into cracks at high pressure through an injection device, so that it is possible to inject a crack repair agent into fine cracks without interference of foreign substances, so that excellent repair of cracks in concrete can be made more quickly and easily. effect can be obtained.
展开▼
