JPH11323705A - Adhesion-reinforcing material for engineering and construction - Google Patents

Abstract

PROBLEM TO BE SOLVED: To plan to enhance anchoring effects of additional disposing mortar in engineering and construction works, bring joint effects of finishing materials to be good and prevent flaking. SOLUTION: In a double raschel-knit fabric prepared by a warp knitting device having two arranged rows of needles, piles 1a, 1b are formed and arranged by knitting on the both sides of the knit fabric and brought to be an adhesive reinforcing material. In forming spirals knitted by the warp knitting device arranged in two rows, the piles are preferably brought to continuously engage with perpendicularly standing pile yarns on both side faces of the knit fabric.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an adhesive reinforcing material used for attaching mortar or the like in civil engineering or construction work, and more particularly to a bonding reinforcing material.
The present invention relates to the above-mentioned adhesive reinforcing material having a three-dimensional net structure.

[0002]

2. Description of the Related Art Conventionally, in civil engineering and construction work, a fiber sheet has been used to reinforce adhesion at the time of attaching mortar and to prevent peeling of an exterior finish of a building, and various reinforcing materials have been proposed. For example, in JP-A-6-280130, a double raschel knitted fabric knitted in a double raschel warp knitting machine, more specifically, a knitted fabric comprising a connecting loop for connecting a front material, a lining and a front and back knitted fabric, It has been proposed that the nap is provided by cutting from the center and the bonding effect with the mortar is measured by an anchor effect inside the mortar. In Japanese Patent Application Laid-Open No. 9-291451, the connecting loop of the double Russell knitted fabric is provided at the center. There has been proposed a method in which an anchor effect is achieved by using a material obtained by fusing with a hot plate and forming a pile tip in a spherical shape in place of a material cut by a cutting machine or a knife of a cutting machine. Attempts have also been made to use a sheet obtained by half-cutting a knitted fabric having pile yarns on one side and bonding two base fabric surfaces to each other.

[0003]

However, the fiber sheet according to each of the above proposals is a warp knitted fabric knitted by a double Russell knitting machine, but uses cut pile yarns for connection. There is a disadvantage that the anchor effect is provided only on one side of the knitted fabric, and that the two layers are laminated and bonded with the pile portion facing outward, which requires many steps and is costly.
Further, these three-dimensional raised nets are composed of a raised part and a knitted fabric base cloth, and the base cloth forms a boundary portion of mortar or the like, which has been a factor of breaking due to impact. .

Accordingly, the present invention focuses on these conventional drawbacks and problems, and in order to solve these problems, further finds a new configuration in a three-dimensional net structure, thereby making it possible to add mortar and the like in civil engineering and construction work. An object of the present invention is to enhance an anchor effect, improve a joining effect of a finishing material, and prevent the peeling of the finishing material.

[0005]

That is, a three-dimensional net according to the present invention which meets the above-mentioned object is a double raschel knitted fabric knitted by a warp knitting device in which needles are arranged in two rows. It is characterized by being formed and arranged by knitting. Here, in knitting piles in a double raschel knitted fabric knitted by a warp knitting device in which the needles are arranged in two rows, it is preferable that the pile yarns be upright on both sides of the knitted fabric and be continuously engaged. is there.

A third aspect of the present invention relates to a specific embodiment of the present invention, wherein the reinforcing material is formed in two front and rear rows in a double raschel knitted fabric knitted by a warp knitting apparatus in which needles are arranged in two rows. A number of parallel chain stitch rows that are knitted and extended every few lines and do not face front and back, and a loop pile that is knitted directly between the two rows and engages with the chain stitch row in one of the front and rear sides And alternately and oppositely to the opposite loops of the chain stitch row at the zigzag position that does not face the front and back two rows, swinging in a zigzag shape and traversing in a zigzag manner, from the binding yarn that connects the two chain stitch rows. A chain stitch row and a continuous pile row are alternately arranged on both sides of the knitted fabric, and are arranged at positions not directly facing each other.

Further, according to the present invention, in the above-described knitted fabric, two or more planar ground structures having large voids are arranged in parallel in front and rear in the knitted fabric, and a plurality of connecting structures for connecting the two ground structures are provided. It is also a preferred embodiment that the yarns are knitted and arranged. As a specific embodiment, in a double Russell knitted fabric knitted by a warp knitting device in which needles are arranged in two rows, the yarns are arranged every several courses facing directly before and after. It is configured by arranging a parallel stitch row that is laterally swung in the wale direction and knitted and extends, and a connecting pile that connects the two rows of needles in front and back.

According to a sixth aspect of the present invention, as a specific embodiment of the reinforcing member, in a knitted fabric knitted by a warp knitting device in which needles are arranged in two rows, the needles face each other in two front and rear rows. A large number of parallel chain stitch rows that are knitted and extended, and alternately and oppositely engage with opposite loops of chain stitch rows at zigzag positions that do not face each other in the front and rear chain stitch rows, and lie in a zigzag shape. And a zigzag position in the chain stitch line directly opposite to the chain stitch line facing the chain stitch line engaged with the binding yarn and the chain stitch line connecting the both chain stitch lines. Alternately in the opposing loops of the chain stitch row,
In addition, it is characterized in that it is engaged in the opposite direction, swings sideways in a zigzag shape, connects the two chain stitch rows, and arranges a binding yarn crossing the binding yarn in an X shape.

[0009]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a schematic plan view showing one embodiment of the reinforcing material of the present invention, and FIG. 2 is a schematic plan view at the time of knitting the knitted fabric of FIG.

In these figures, reference numerals 2a and 2b denote two rows of front and rear chains, and a plurality of parallel chain stitch rows knitted and extended to face front and back. Reference numeral 3 denotes a zigzag that does not face the front and rear chain stitch rows 2a and 2b. A binding thread that alternately and oppositely engages the opposite loop of the chain stitch row at the position and swings in a zigzag manner to join both chain stitch rows;
And the binding yarn 3 constitute a basic double Russell knitted fabric. During the knitting of the double Russell knitted fabric, one of the front and rear chain stitch rows 2a or 2b is engaged between the two chain stitch rows 2a and 2b to form loop piles 1a and 1b, and loops are formed on both sides of the knitted fabric. The piles 1a and 1b are alternately arranged at positions not directly facing each other. In this case, the length of the loop pile is preferably about 2 to 7 mm.

FIG. 3 is a structural diagram shown in FIG. 4. In the formation by knitting of the loop pile as described above, the pile in which the loop piles 1a and 1b stand upright and continuously engage on both sides of the knitted fabric. With this, a chain stitch row and a continuous loop pile row are alternately arranged on both sides of the knitted fabric, and the pile has a structure protruding from both sides of the knitted fabric. When using the reinforcing material of the present invention in which the above-mentioned loop pile is arranged, it is preferable that the knitted fabric is widened in the width direction and shaped by heat setting or resin processing in order to improve stabilization and workability. is there.

In the knitted fabric of FIG. 1, the reinforcing material of the present invention is attached to the net attaching mortar which is first attached in the working process, and the attached mortar or the exterior finishing mortar is attached. The finishing mortar provides a high anchoring effect by loop piles knitted on both sides of the knitted fabric.

[0014] Further, by interposing the reinforcing material of the present invention between the net attaching mortar and the exterior finishing mortar, a basic fabric-like boundary surface is formed. The yarn 3 is almost empty and does not form a boundary surface in the knitted fabric. Therefore, it is unlikely that the mortar is broken by the knitted fabric.

FIG. 5 shows an embodiment of the invention according to claim 4.
FIG. 6 shows the organization diagram, where 13 is a chain stitch row knitted between the front and rear needles, and 13a and 13b are facing the front and back in the front and rear chain stitch rows at every several courses.
Specifically, the loop stitches are arranged by waving in the wale direction every 1 to 30 courses, preferably every 1 to 10 courses, and the chain stitch row 13 is a connecting loop pile for directly connecting and connecting two rows of needles. The knitted fabric is formed by these stitches 13a and 13b and the connecting loop pile 13. This knitted fabric is also subjected to post-processing for stabilizing the knitted fabric, as described above, but most of the base fabric-like boundary surface is a void, and it is unlikely that the mortar is broken by the knitted fabric.

FIG. 7 is a structural diagram shown in FIG. 8, which shows still another embodiment of the knitted fabric of the present invention.
Is a chain stitch row knitted and extended in front and back in two front and rear rows, and 23 is a chain stitch row loop 22b at a zigzag position that does not face the chain stitch row 22a and then alternately and in the opposite direction to 22a. And swayed in a zigzag manner to connect the two chain stitch rows 22a, 22b and 22a. Also, 33 is alternately and sequentially engaged with the chain stitch row loops 32a, 32b at zigzag positions that do not face each other in the chain stitch row 32b, and swings in a zigzag shape so as to traverse the chain stitch rows 32b, 32a, Next, the binding yarn is sequentially bound to 32b. The binding yarns 23 and 33 cross each other in an X shape, and the front and rear chain stitch rows 22a, 22b or 32a, 32b
Is tied. The binding yarn enables the formation of a loop pile. Even in this knitted fabric, there is a void at the boundary surface of the base fabric, and the knitted fabric does not cause mortar breakage.

In the knitted fabric of each reinforcing material having the above-mentioned structure, at the time of knitting, the yarn materials used for the chain stitch row forming yarn and the loop pile yarn and the binding yarn are appropriately selected according to the use and purpose. In addition to natural fibers such as cotton, inorganic fibers or ceramic fibers such as glass fiber, rock wool, carbon fiber, whisker, silicon carbide fiber, alumina fiber, zirconia fiber, nylon, aramid, polyester, and polyacrylic synthetic Organic fibers such as fibers are usually used, and each of the above-mentioned yarn materials is not limited to one type, and a plurality of combinations are possible. In particular, long fiber filaments are preferable.

Thus, the reinforcing material made of the knitted fabric obtained by the above structure is obtained by applying mortar to the surface of a concrete base or a mortar base, and integrally attaching the knitted fabric in an unhardened state of the mortar, and forming a loop thereof. By fixing the tile to the concrete foundation so that the pile is buried, the loop pile penetrates into the inside of the mortar layer, holding each layer with an anchor effect,
Prevents cracking, peeling and spalling of finishing materials.

[0019]

The present invention comprises a reinforcing material as described above,
The loop pile projecting to both sides of the double-cellal knitted fabric has a high anchoring effect, and the base fabric-like boundary surface is net-like and has a large gap. Further, in the reinforcing material of the present invention, since the loop pile is formed and arranged by knitting, a step of cutting at the center of the knitted fabric, a step of drawing out the loop pile,
There is no need to perform a step of attaching a knitted fabric base cloth or the like, which has a remarkable effect of improving productivity and reducing costs.

[Brief description of the drawings]

FIG. 1 is a schematic plan view in which loop piles are arranged on both sides of a double raschel knitted fabric according to the present invention.

FIG. 2 is a schematic plan view of the double raschel knitted fabric during knitting.

FIG. 3 is a perspective view of a knitted fabric according to claim 2 of the present invention.

FIG. 4 is an organization chart of the knitted fabric according to FIG. 3;

FIG. 5 is a perspective view of a knitted fabric according to claim 4 of the present invention.

6 is an organization chart of the knitted fabric according to FIG. 5;

FIG. 7 is a schematic plan view of a knitted fabric according to claim 6 of the present invention.

FIG. 8 is an organization diagram of the knitted fabric according to FIG. 7;

[Explanation of symbols]

 1a, 1b Loop pile 2a, 2b Chain stitch row 3 Binding yarn

Continued on the front page (72) Inventor Ryoji Kanemaru 35-1 Iwatake, Fukuno-cho, Higashi-Tonami-gun, Toyama Pref.

Claims (6)

[Claims] 1. A double raschel knitted fabric knitted by a warp knitting device in which needles are arranged in two rows, wherein loop piles are formed on both sides of the knitted fabric by knitting and arranged, and are used for civil engineering and construction. Adhesive reinforcement. 2. The adhesive reinforcement for civil engineering and construction according to claim 1, wherein the loop piles arranged on both sides of the knitted fabric are piles which are engaged upright and continuously. 3. A double Russell knitted fabric knitted by a warp knitting device in which needles are arranged in two rows, two rows in front and rear, and every one to several in the same row, and do not face front and back. A number of parallel chain stitch rows that are knitted and extended; a loop pile that is knitted directly between the two rows and engages with the chain stitch row in either the front or rear, and a zigzag position that does not face the front and rear two rows. It consists of binding yarns that alternately and oppositely engage with the opposite loops of the chain stitch row and swing in a zigzag manner to join the two chain stitch rows, and on both sides of the knitted fabric, a chain stitch row. 3. The adhesive reinforcing material for civil engineering and construction according to claim 1, wherein the continuous pile rows and the continuous pile rows are arranged alternately and at positions not directly facing each other. 4. The civil engineering and construction equipment according to claim 1, wherein two planar ground structures having large voids are arranged in parallel, and a plurality of binding yarns for knitting the two ground structures are knitted and arranged. Adhesive reinforcement. 5. In a double Russell knitted fabric knitted by a warp knitting device in which needles are arranged in two rows, parallel chain stitch rows extending laterally in the wale direction every several courses facing directly back and forth. And a connecting pile for connecting the two rows of needles to face each other front and rear.
Or the civil engineering and construction adhesive reinforcing material according to 4. 6. A double Russell knitted fabric knitted by a warp knitting device in which needles are arranged in two rows, and a large number of parallel chain stitch rows extending in two rows of front and rear knitted and opposed to each other. And a binding yarn that alternately engages and opposes the opposite loops of the chain stitch row at the zigzag position that does not face the front and rear chain stitch rows and zigzags to connect the two chain stitch rows. And, in the chain stitch row directly opposite to the chain stitch row engaged with the binding yarn, alternately with the opposite loop of the chain stitch row at the zigzag position that does not face the chain stitch row before and after the chain stitch row, Civil and construction adhesives, characterized in that they are engaged in the opposite direction and swing sideways in a zigzag manner to join the two chains of stitches, and to arrange a binding yarn crossing the binding yarn in an X shape. Reinforcement.