JPH08120947A - Confirming method for floating of mortar - Google Patents

Abstract

PURPOSE: To judge whether a hole is suitable for the filling of repairing resin or not by drawing out viscous liquid resin after filling and hardening it into a rubber-like state for modelling the inside of the hole. CONSTITUTION: After liquid resin 10 is injected into a repairing hole 3 drilled in a concrete building frame through a mortar 2 and hardened into a rubber like state, the hardened resin 10 is drawn out for observing the state of the hole 3. Two-liquid silicone is suitable for the injected resin, and the resin which does not excessively adhere to a contact part and has easily drawable rubber character is used. Preferably, a metal bar 11 is inserted into the injected resin at the same time as the injection of the resin for facilitating the drawing out of the resin after hardening. In addition to that, a cylindrical synthetic paper is inserted in the hole 3 and rubbed with a pencil or the like for making the copy of the surface state of the hole, and when that the drilled hole is suitable for injecting the resin can therefore be confirmed, a pin is driven into the hole and then the resin is injected for carrying out repairing work.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for confirming mortar floating in a work for repairing mortar floating.

[0002]

2. Description of the Related Art When a gap between a mortar which is a finishing layer of a concrete building and a concrete skeleton, that is, a so-called mortar float occurs, a hole from the mortar to the concrete skeleton is bored, and an epoxy resin is filled in the hole. Injecting or injecting a resin and at the same time inserting an anchor pin to perform repair work to integrate the mortar and the body.

In this repair work, it is important to accurately know the thickness of the mortar, the position of the float, the size of the float, and the presence or absence of other defects. Also, the chips generated during the drilling work are removed from the holes before the resin is injected, but if they are not completely removed, the floating gaps are clogged, or if the missing mortar remains, the injected resin Will hinder the flow of.

One of the purposes of finishing the surface of the concrete skeleton with mortar is to obtain the smoothness of the finished surface, and the thickness of the mortar generally differs depending on the location. Therefore, the desired repair cannot be performed unless the thickness of the mortar and the floating state are confirmed by observing the inside of the hole opened for repair.

The conventional method for confirming the inside of a hole is to insert a metal rod in the form of an earpick into a hole that has been punched, and judge by the feeling when the tip of the metal rod is caught in a floating portion, or A method of observing using an endoscope is known. However, the former of the prior art has many problems depending on the worker's intuition and cannot accurately judge the situation of the hole, and the latter has the problem that the whole situation cannot be grasped because only the local part is imaged. This is why there is a need for a method that allows more accurate and easy confirmation of holes.

[0006]

The problem to be solved by the present invention is to make a hole suitable for injecting a resin for repair by making a mold or locating the condition of the hole made in the concrete structure through the mortar. It is to provide a method of confirming whether or not.

[0007]

The first means for solving the problems in the present invention is to inject a viscous liquid resin or a liquid resin together with a stick material into a hole made in a concrete skeleton through a mortar, It is characterized in that the liquid resin is cured into a rubber-like shape and then drawn out to form the inside of the hole, and the second means is to put a cylindrical paper in the hole made in the concrete body through the mortar. It is characterized by inserting and rubbing or pressing the paper to copy the inside of the hole.

[0008]

EXAMPLE FIG. 1 shows holes made in a concrete skeleton through a mortar, 1 being a concrete skeleton,
Reference numeral 2 is a mortar, and 3 is a repair hole, and a gap 4 is generated between the concrete skeleton 1 and the mortar 2. In addition, 5 is a cutting powder, and 6 is a chipped piece in which a part of the mortar is chipped.

FIG. 2 shows a first method of observing a hole, which is a method of molding the condition of the hole using a resin. The liquid resin 10 is injected into the perforated hole 3 and cured into a rubber-like shape, which is then withdrawn and the condition of the hole is observed. The resin to be injected is preferably a two-liquid type silicon or the like, and one having a rubber-like property that does not adhere to the contact portion so much and is easily pulled out is used. It should be noted that after the curing, it is preferable that the metal rod 11 is inserted at the same time as the resin is injected so that the resin can be easily drawn out.

FIG. 3 shows a second method of observing a hole, which is a method of copying the condition of the hole on a cylindrical paper. Hole 3
The state of the hole surface is copied by inserting a cylindrical paper 20 into the inside and rubbing it with a pencil or the like, or the state is copied by pressing the paper as pressure sensitive paper and pressing it against the hole surface.

The paper used should be as thin and durable as possible. In particular, synthetic paper is optimal because it is thin, has high tensile stress, and has water resistance.

When it is confirmed that the drilled hole is suitable for injecting the resin, a repair work is performed by driving a pin into the hole and then injecting the resin.

[0013]

INDUSTRIAL APPLICABILITY The present invention is to mold or copy the inner surface of a hole to be drilled for repair, and accurately and easily determine whether or not the hole is suitable for injecting resin for repair. It can be judged.

[Brief description of drawings]

FIG. 1 is a sectional view of a hole made in a concrete skeleton through a mortar.

FIG. 2 is a sectional view of an embodiment for carrying out the first method of the present invention.

FIG. 3 is a sectional view of an embodiment for carrying out the second method of the present invention.

[Explanation of symbols]

 1 Concrete body 2 Mortar 3 Hole for repair 4 Gap 5 Chips 6 Missing piece 10 Resin 11 Metal rod 20 Cylindrical paper

Claims (3)

[Claims] 1. A method for confirming a condition of a hole to be drilled for repair in a work for repairing a floating mortar, wherein a viscous liquid resin is injected into a hole made in a concrete skeleton through the mortar, A method for confirming the floating of mortar, which comprises hardening the liquid resin into a rubber shape and then drawing it out to form the inside of the hole. 2. The method for confirming the floating of mortar according to claim 1, wherein the rod material is inserted at the same time when the liquid resin is injected into the hole. 3. A method for confirming a condition of a hole to be drilled for repair in a work for repairing a floating mortar, comprising inserting a tubular paper into a hole made in a concrete skeleton through the mortar, and A method of confirming mortar floating, which is characterized by copying the inside of the hole by friction or pressure.