JPH0536592B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION <<Industrial Application Field>> The present invention particularly relates to a method of filling mortar between the outer wall of a building and a sash.

《Prior art and problems》 When attaching a sash to the concrete surface of a building's exterior wall, while checking the erecting of the sash, the ends of the sash are welded and fixed to anchor bars that protrude from the end face of the exterior wall, and these The space is filled with mortar.

However, since the outside of the sash frame has a complex shape and the gap between it and the concrete outer wall is narrow, it is difficult to fill every inch of the gap with hard-mixed mortar, while with soft-mixed mortar, ,
Particularly when filling the rising part of the sash, the sag would sag, resulting in a decrease in work efficiency.

Furthermore, after a building is completed, water leakage occurs due to insufficient filling of mortar around the sash, dry shrinkage clutches, etc. Therefore, when filling mortar around the sash, we check the filling rate and use mortar containing a waterproofing agent, but as mentioned above, it is difficult to completely fill the mortar. At the same time, a contraction clutch occurs, so it is difficult to say that this is an effective means for preventing water leakage.

This invention was made in view of the above-mentioned conventional problems.The purpose of this invention is to introduce a thread-like reinforcing material into the filled mortar while applying vibration, so that it can be applied to the outer wall and the sash of the structure. To provide a method for filling mortar which prevents water leakage by filling mortar up to the point where it prevents shrinkage clutches from occurring.

<Means for Solving the Problems> In order to achieve the above object, the present invention fills mortar between the outer wall of the structure and the sash, and then irregularly inserts filamentous materials made of synthetic fibers, etc. The thread-like reinforcing material in the form of a 3D entangled lump is pushed into the mortar, and by applying vibration to the mortar, the thread-like reinforcing material enters the mortar, and the space created by the vibration is replenished with mortar. This seals the joint between the exterior material and the exterior material.

<<Operation>> The filling method according to the present invention allows the filamentous reinforcing material to enter the filling mortar while applying vibration, so that it is possible to fill the mortar between the outer wall of the structure and the sash and to allow the filamentous reinforcing material to enter the mortar. This can be done at the same time, and the mortar is filled into every corner of the space to prevent water leakage, and the thread-like reinforcing material filled in the mortar absorbs shrinkage due to drying of the mortar and eliminates the cause of cracks. can be contained.

In addition, if a water-absorbing material is used as the thread-like reinforcing material, it will absorb excess water in the mortar and
The condition is similar to that of filling mortar with a low water-to-cement ratio, and shrinkage due to mortar drying can be reduced.

In addition, if a water-absorbing material is used as the back-up material for the sealing material, even if the sealing material ages and rainwater enters from this area, the back-up material (such as spongy rubber or synthetic resin) ) part retains moisture, and the filled mortar part beyond that has a moderate amount of moisture to compensate, reducing the risk of water leakage.

<<Example>> A construction method according to a preferred embodiment of the present invention will be described with reference to the drawings.

First, in FIG. 1, a temporary frame 11 is attached to the outer periphery of the space 3 between the outer wall 1 and the sash 2 of the structure to prevent the filling mortar 5 from leaking. Thereafter, adhesive 12 is applied to the end surface of the outer wall 1 filled with mortar 5 using a conventional construction method in order to increase the adhesive force with the mortar 5.
is applied, and the mortar 5 is immediately filled into the gap 3 before the adhesive 12 dries. After filling the mortar 5, a lump-like filamentous reinforcing material 7 made of filaments made of synthetic fibers or the like is irregularly intertwined three-dimensionally as shown in the figure is pushed into the mortar, and the opening on the mortar filling side is pushed into the mortar by a vibrator 8. When vibration is applied to the mortar 5, the filamentous reinforcing material gradually enters the mortar.

In this case, to check the degree of filling of the mortar, the filamentous reinforcing material 7 is introduced into the mortar while applying vibration until mortar slag comes out from inside the sash.

The gap 3 can be filled with mortar 5 having a high water-cement ratio, and since vibration is applied to the mortar, the mortar 5 is spread throughout the gap 3.

Further, the filamentous reinforcing material 7 is preferably formed from a filamentous material having water-absorbing properties, and in this case, the filamentous reinforcing material absorbs excess moisture in the mortar and becomes as if it were filled with mortar 5 with a low water-to-cement ratio. This makes it possible to reduce shrinkage of the mortar 5 due to drying.

In FIG. 2, if a space is created in the space 3 due to the application of vibration by the vibrator 8, mortar 6 may be replenished into this space. After the filling mortar 5 in the gap 3 has hardened, the temporary frame 11 is removed and a base mortar for the exterior material 4 such as tiles is applied. At this time, at the joint between the exterior material and the sash 2, a space between the back-up material 9 and the sealing material 10, which will be applied later, is secured with styrofoam or the like.

After the base mortar has dried, the styrene is removed and a back-up material 9 made of spongy rubber, synthetic resin, etc. is attached to that part. Thereafter, an exterior material 4 such as a tile is mounted on the base mortar, and a sealing material 10 is injected onto the back-up material 9 at the joint between the exterior material 4 and the sash 2, and the work is completed.

<<Effects of the Invention>> As explained in the above embodiments, the present invention can strengthen the outer wall of a structure by pushing a lump-like filament reinforcing material in which filaments are irregularly intertwined three-dimensionally into a filled mortar while vibrating it. It is possible to densely fill the mortar between the slats and the sash and to allow the filamentous reinforcing material to enter the mortar at the same time, and by applying vibration, the mortar can be filled to every corner between the slats. The filamentous reinforcing material filled in the mortar can absorb the shrinkage caused by drying of the mortar and contain the causes of cracks.

In addition, if a water-absorbing material is used as the thread-like reinforcing material, it will absorb excess water in the mortar and
The condition is similar to that of filling mortar with a low water-to-cement ratio, and shrinkage due to mortar drying can be reduced.

In addition, if a water-absorbing material such as spongy rubber is used as the back-up material for the sealing material, even if the sealing material ages and rainwater enters from this area, the back-up material will retain moisture. However, the filled mortar portion beyond that point will have an appropriate amount of moisture to compensate, reducing the risk of water leakage.

[Brief explanation of drawings]

The drawings are plan views showing the construction order of the embodiment of this invention, and Fig. 1 is an explanatory diagram showing the insertion of filamentous reinforcing material while vibrating it after filling mortar between the outer wall of the building and the bottom of the sash. FIG. 2 is an explanatory view of using a water-absorbing material as a backup material for the sealing material after filling the created cavity with mortar. 1... Outer wall, 2... Satsushi, 3... Between, 4...
... Exterior material, 5 ... Filling mortar, 6 ... Replenishment mortar, 7 ... Thread reinforcement material, 9 ... Backup material,
10... Seal material, 11... Temporary frame, 12... Adhesive.

Claims (1)

[Scope of Claims] 1. After filling mortar between the outer wall of the structure and the sash, a lump-like filament reinforcing material made of filaments made of synthetic fibers etc. intertwined in an irregular three-dimensional manner is pushed into the mortar. , by applying vibration to the mortar, the thread-like reinforcing material enters the mortar, and the space created by the vibration is replenished with mortar;
A mortar filling method characterized by sealing the joint between the sash and the exterior material. 2. The mortar filling method according to claim 1, wherein the filamentous reinforcing material has water absorbency. 3. The mortar filling method according to claim 1 or 2, wherein a water-absorbing material such as spongy rubber is used as a backup material for the sealing material.