JPH055996U - Mortar top coating concrete structure construction tool - Google Patents

Abstract

(57) [Abstract] [Purpose] It is an object of the present invention to provide a tool capable of forming groove-like irregularities on the surface of a base mortar in order to eliminate a peeling accident of the surface mortar. [Structure] A tool for forming groove-shaped irregularities on the surface of a mortar of a concrete structure whose surface is coated with mortar. This tool 6 has projections 8 and 8 on the back surface of a leveling plate 7 having a handle 9. It is configured by projecting.

Description

[Detailed description of the device]

[0001]

[Industrial application]

 The present invention relates to a construction tool for forming groove-like irregularities on the surface of a base mortar in order to eliminate peeling of mortar for attaching tiles and the like.

[0002]

[Prior art and its problems]

 Conventionally, when forming a wall surface of a tile, a base mortar is applied to the surface of a concrete skeleton, a mortar with a paste is applied to the surface of the base mortar, and a tile is attached through the mortar with a paste. If the adhesive strength of the attached mortar is weak, there is a problem that the attached mortar peels from the base mortar and the tile falls.

[0003]

[Means for Solving the Problems]

 The present invention was devised in view of the above conventional problems, and an object thereof is to provide a tool for forming irregularities on the surface of a base mortar in order to eliminate the peeling of the adhesive mortar from the base mortar. The gist of this is a tool for forming groove-like irregularities on the surface of the mortar of a concrete structure whose surface is coated with mortar.The tool has a protrusion on the back surface of a leveling plate having a handle. It is constructed by projecting.

[0004]

[Action]

 Before the base mortar applied to the surface of the concrete skeleton hardens, hold the handle by hand on the surface of the base mortar and bring the plate into contact with the surface of the base mortar with a slight inclination. By moving the leveling plate, the protrusions bite into the surface of the base mortar, and groove-like irregularities are formed by the protrusions on the surface of the base mortar. After that, when the adhesive mortar is applied to the surface of the base mortar, the adhesive mortar digs into the formed groove, and is firmly integrated with the base mortar to obtain a concrete structure without peeling.

[0005]

【Example】

 Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a cross-sectional configuration diagram of a concrete structure in which tiles are attached to the surface. A concrete mortar 1 has a surface coated with a base mortar 2, and a surface of the base mortar 2 further has a bonded mortar 3. The tiles 4 and 4 are applied and then adhered through the adhered mortar 3, and conventionally, when a tile fall accident occurs, the adhered mortar 3 should be separated from the base mortar 2 and fall. In order to firmly integrate the adhesive mortar 3 with the base mortar 2, the grooves 5, 5, 5 are opened on the surface of the base mortar 2 before the base mortar 2 is hardened. The adhesive mortar 3 is infiltrated into the inside of 5, 5 and 5 so that the adhesive mortar 3 is firmly integrated with the base mortar 2.

In order to form the groove 5, a construction tool 6 as shown in FIG. 2 is used in this example, and the construction tool 6 is formed on the surface of a flattened leveling plate 7 by hand. A handle 9 that can be gripped by is provided, and columnar projections 8 are vertically provided in two steps vertically at predetermined intervals on the back surface side.

By holding the handle 9 of the construction tool 6 by hand, as shown in FIG. 3, the leveling plate 7 is pressed against the surface of the base mortar before the base mortar 2 is cured, and the leveling plate 7 is laterally moved. By moving, the protrusions 8 and 8 can bite into the base mortar 2 to form the two-level grooves 5 and 5 on the surface of the base mortar 2, and the lower leveling plate 7 can be placed in order. Grooves 5, 5, 5 can be formed on the surface of the base mortar 2 one after another by moving in the lateral direction. When the leveling plate 7 is brought into contact with the surface of the base mortar 2, if the leveling plate 7 is slightly inclined with respect to the base mortar 2 and the moving direction is floated, the leveling plate 7 moves. The surface of the groove formed by the protrusions 8 and 8 can be smoothed and pressed by the smoothing plate 7 to form the grooves 5 and 5 in a dovetail-shaped cross section.

By thus forming the grooves 5, 5, 5 on the surface of the base mortar 2 and then applying the sticking mortar 3 on this surface, the sticking mortar 3 is placed in the grooves 5, 5, 5. The clinging mortar 3 does not enter into the base mortar and is not peeled off. In this example, the back surface of the leveling plate 7 is illustrated as having two protrusions 8 and 8 provided in a protruding manner, but the protrusions 8 and 8 may be provided in three and four steps. Good and the intervals can be arbitrary.

[0009]

[Effect of the device]

 The present invention is a tool for forming groove-shaped irregularities on the surface of the mortar of a concrete structure whose surface is coated with mortar, the tool projecting protrusions on the back surface of a slab having a handle. By setting it, the leveling plate is pressed against the surface of the base mortar with the handle by hand before hardening the base mortar, and in that state the leveling plate is moved in the horizontal direction and the base is set by the protrusions. It is possible to satisfactorily form groove-shaped irregularities on the surface of the mortar, and the adhesive mortar applied to the surface is bitten into the groove-shaped irregularities, and the adhesive mortar is firmly integrated with the base mortar. Therefore, it is possible to obtain a concrete structure that is free from peeling accidents.

[Brief description of drawings]

FIG. 1 is a cross-sectional configuration diagram of a concrete structure in which tiles are attached to the surface.

FIG. 2 is a perspective configuration view from the back side of the construction tool of the present invention.

FIG. 3 is an explanatory view of an operation at the time of construction for forming groove-shaped irregularities on the surface of the base mortar using the tool of FIG.

[Explanation of symbols]

 1 Concrete frame 2 Base mortar 3 Cement mortar 4 Tile 5 Groove 6 Construction tool 7 Leveling plate 8 Protrusion 9 Handle

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor, Harumi Jun Fujii, 5-1-1, Koiehoncho, Tokoname City, Aichi Prefecture

Claims (1)

Claims for utility model registration 1. A tool for forming groove-shaped irregularities on the surface of the mortar of a concrete structure whose surface is coated with mortar, provided that the tool has a handle. A mortar overcoated concrete structure construction tool, characterized in that it is formed by projecting projections on the back surface of a slab.