JP2002137216A - Method for molding working surface covering block - Google Patents

Abstract

PROBLEM TO BE SOLVED: To assure a weight of an overall block necessary to stably install by molding a bottom block while maintaining a profile and a size of a coating block body molded in a molding cavity of a female mold, and to rotatably load covering soil in a method for molding an executing surface coating block by filling concrete in a bag arranged in the molding cavity of the female mold. SOLUTION: The bag 4 for filling the concrete 6 has an excessively long end 4a not specified by the molding cavity 3. The method for molding the working surface covering block comprises the steps of further filling the concrete 6 in the end 4a, and integrally molding a coating block body 9 specified by the cavity 3 with the bottom block 10 not specified by the cavity 3.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of forming a concrete surface lining block.

[0002]

2. Description of the Related Art Japanese Unexamined Patent Publication No. 2000-117713 discloses a method in which a female molded cavity is provided with a flexible bag having irregularities formed of natural rock, and the bag is filled with concrete. The bag is adapted to the inner surface of the molding cavity while the bag is inflated by the internal pressure of the concrete, and after the concrete is hardened, the bag is removed from the female mold together with the bag to remove the bag. There is disclosed a method for forming a work surface lining block.

[0003]

In the above conventional method,
The size of the mold cavity of the mold used is the size of the block as it is, and it is difficult to manufacture a block arbitrarily adding the weight necessary for stable installation using the same mold. Alternatively, as shown in FIG. 8, a flat installation surface 18 which is the maximum width portion W of the block is formed on the opening surface of the molding cavity, and the flat installation surface 18 which is the maximum width portion W when lining the construction surface. However, there is a problem that the covering soil cannot be sufficiently turned around or behind the block. Also, removing the bag is troublesome.

[0004]

Therefore, a method of forming a construction surface lining block according to a first aspect of the present invention is to provide a method for forming a lining block in a female mold cavity, wherein the bag body has an extra long end which is not restricted by the mold cavity. Concrete is further filled in the extra length end to form a block regulated by the molding cavity, and a bottom block not regulated by the molding cavity is integrally molded.

[0005] The length of the extra length end of the bag body and the amount of concrete to be filled in the extra length end are adjusted to form a bottom block portion having a diameter smaller than the maximum width portion in the extra length end. In addition to appropriately adding the weight required for stable installation, the covering soil is sufficiently rotated around or behind the bottom block portion.

According to a second aspect of the present invention, a bag having air permeability and water permeability is used as the bag, and cement paste is exuded to the outer surface of the bag during the hardening process of the concrete to be filled in the bag. A coating layer is formed on the outer surface by curing the resin, and the bag is integrally embedded in the coating layer for use. The step of removing the bag while removing the bag from the female mold is omitted, and the block forming operation is simplified.

In the first and second aspects of the present invention, a coloring material is held in the bag body to form a colored coating layer on the outer surface of the block, and the block is simultaneously molded and colored to imitate natural rock. Make the blocks easily moldable.

In the first and second aspects of the present invention, a bag made of biodegradable synthetic fiber is used as the bag, and the bag is decomposed by alkali of cement and microorganisms in soil or water. Together with the block,
Prevent environmental pollution due to the degraded and separated bags flowing into rivers.

In the first and second aspects of the present invention, an opening of a bag mouth for filling the concrete into the bag is provided, and the concrete is filled into the bag through the opening. Facilitates the work of filling concrete.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A method for forming a construction surface lining block 1 according to the present invention will be described with reference to FIGS.

The above-mentioned construction surface lining block 1 is used for lining the ground and the road surface, lining river revetment walls, riverbeds, embankments, constructing retaining walls, laying in parks and gardens, and the like. Refers to concrete blocks such as artificial rocks, boulders, and the like that mimic the shape of natural rock. The above-mentioned concrete means a fluid cement kneaded material, and includes concrete made of cement, sand and gravel, mortar containing no gravel, foamed concrete and the like.

As shown in FIG. 1A, the female mold 2 has a molding cavity 3 opening upward, and a flexible bag 4 for filling concrete 6 is arranged in the molding cavity 3.
The molding cavity 3 is a recess formed according to the shape and size of the target construction surface lining block 1.

The molding cavity 3 is terminated at the upper surface of the female mold 2 as shown in FIG. 1, or as shown in FIG. The water surface 23 is raised, and the water impermeable surface 23 prevents the water of the concrete 6 filled in the bag 4 and the lateral flow of the cement paste.

As shown in FIGS. 2A and 2B, a bottomed bag provided with a bag opening 7 for filling concrete 6 is used as the bag 4.

As shown in FIG. 2C, the bag body 4 is developed in a flat sheet shape, and formed into a bag shape by providing a means for squeezing the peripheral edge of the sheet. For example, a bag having the bag opening 7 is formed by squeezing the cord 8 inserted along the periphery of the sheet.

The bag 4 is made of a woven fabric having good adaptability to the inner surface of the molding cavity 3, that is, a permeable cloth formed by braiding natural or synthetic fibers having flexibility. . Alternatively, a porous air-permeable and water-permeable bag is used. Alternatively, a bag 4 made of a metal film such as aluminum or stainless steel, a resin film such as vinyl, rubber, or the like and having no air permeability is used.

The bag 4 is swelled by the concrete 6 to be filled, and can be folded flat in a normal state where no concrete is filled. Due to the flexibility of the bag body 4, it is possible to form the construction surface lining block 1 that appropriately reproduces the shape of the molding cavity 3 of the female mold 1.

In order to further improve the good adaptability to the molding cavity 3, a bag 4 having elasticity in addition to flexibility is used. For example, a bag 4 formed of a woven fabric of a synthetic fiber such as nylon, polyester, or acrylic fiber or a woven fabric of a natural fiber, or a rubber typified by a rubber balloon having both flexibility and elasticity as shown in FIG. 2B. The bag body 4 made of is used.

The bag 4 having both flexibility and elasticity
Since the bag 4 expands due to the internal pressure of the filled concrete 6 and the bag 4 expands following the shape of the inner surface 5 of the molding cavity 3, the fineness of the inner surface 5 of the molding cavity 3 is small. The construction surface lining block 1 which appropriately reproduces the shape can be formed.

Next, as shown in FIG. 1B, fluid concrete 6 is filled into the bag body 4 from the bag mouth 7 and the bag body 4 is pressed by the internal pressure of the concrete 6 by the flexibility of the bag body 4. The bag body 4 is inflated, and is adapted to the inner surface 5 of the molding cavity 3. That is, the outer shape of the bag body 4 is regulated by the molding cavity 3 to form the lining block body 9.

As shown in FIG. 1 and FIG. 7A, the concrete 6 is filled until reaching the end of the molding cavity 3 (opening surface 3a), or as shown in FIG. Filling is performed to a level that does not reach the surface 3a), and a lining block body 9 having a required size is formed. The bottom of the lining block main body 9 is the maximum width W of the lining block 1.

The bag 4 filled with the concrete 6 while being restricted by the molding cavity 3 in the molding cavity 3 has an extra long end 4a which is not restricted by the molding cavity 3. The end of the extra length end 4a is a bag mouth 7 for filling the concrete 6 described above.

Following the filling of the concrete 6, FIG.
As shown in the figure, the concrete 6 is further filled in the extra length end 4a without being restricted by the molding cavity 3. Using the bag 4 having both the flexibility and the elasticity, the concrete 6 is filled to a required height while extending the extra length end 4a upward.

The concrete 6 filled in the extra length end 4a retains its outer shape by the extra length end 4a, and is regulated by the molding cavity 3 and is formed at the bottom of the lining block main body 9 which is molded according to the shape. In addition, the extra length end 4a is not regulated by the molding cavity 3.
The bottom block part 10 is formed therein. The lining block main body 9 and the bottom block 10 are separated by a maximum width portion W.

The bag end 4b of the extra long end 4a of the bag 4 not filled with the concrete 6 is hung on a support rod 24 indicated by a chain line in FIG. The concrete bag 6 is hardened with the bag 4 thus suspended. Alternatively, a hook such as a hook is attached to the support rod 24, and the bag 4 filled with the concrete 6 is suspended by the hook.

Hanging of the bag body 4 keeps the extra-long end 4a, which is not restricted by the molding cavity 3, in a tensioned state, and suppresses the lateral expansion of the fluid concrete 6 in the extra-long end 4a. The suspension does not mean that the bag body 4 is lifted into the air and separated from the inner surface 5 of the molding cavity 3.

As the bag 4, a bag having air permeability and water permeability, for example, a bag formed from the woven fabric of the natural fiber or the chemical fiber, or a bag formed from a porous sheet or a porous film is used.

In the course of hardening the concrete 6 filled in the bag 4 using the above-described bag 4 having air permeability, as shown in FIG. Exudes to

The coating layer 6a is formed on the outer surface of the bag 4, that is, on the outer surface of the block 1 by the hardening of the exudable cement paste, and the block 1 in which the bag 4 is integrally embedded in the coating layer 6a. Is molded. The block 1 formed by using the bag 4 having air permeability is used while the bag 4 is integrally embedded in the coating layer 6a.

As the bag 4 embedded in the coating layer 6a, a bag made of biodegradable synthetic fiber is used. As an example of the biodegradable synthetic fiber, Lactron (registered trademark) manufactured by Kanebo Synthetic Fiber Co., Ltd., which is a polylactic acid fiber made from lactic acid obtained from starch such as corn, is used. Alternatively, biodegradable synthetic fibers other than corn are used.

The bag 4 made of the biodegradable synthetic fiber is
The bag 4 is easily degraded by the alkali of the cement and further decomposed into carbon dioxide and water by the action of microorganisms in the soil or water to assimilate with the concrete 6, so that the bag 4 is integrally formed in the coating layer 6a. Even if the block 1 is used while being buried, that is, without removing the bag 4, there is no fear of causing environmental pollution such as deterioration of fibers of the bag, separation and flow into a river.

Next, as shown in FIG. 1D, the hardened concrete 6 is removed from the female mold 2 together with the bag body 4 to form a construction surface lining block 1 having a predetermined shape. Residual end 4b of bag body 4 not filled with concrete
By pulling up, the construction surface lining block 1 can be easily removed from the female mold 2.

When curing is promoted in a suspended state in which the bag mouth remaining end 4b is suspended from the support rod 24, the support rod 24
Is lifted, and the above-mentioned mold release is performed in the suspended state. The bag mouth remaining end 4b may be cut as shown in the drawing after the mold is released, or may be left without being cut.

When a bag having no air permeability is used as the bag 4, the bag 4 is removed by a tool or the like after the mold is released.

As shown in FIG. 1E, a bottom block 10 having a diameter smaller than the maximum width W formed in the extra length end 4a is mounted on a work surface 17, and a soil covering 17 is provided around the bottom block 10. ′ (Soil or sand, etc.) is sufficiently swirled to embed the bottom block portion 10 and the lining block portion main body 9.
And lining the construction surface 17 stably.

Conventionally, when a block simulating natural rock is formed using only the female mold 2, as shown in FIG. 8A, a flat bottom surface which becomes the maximum width W at the opening surface 3 a of the forming cavity 3 is used. 18 are formed, and sufficient earth covering 1 is provided around and behind the block 1 to install and install the bottom surface 18.
7 '(soil or sand) could not be turned around, and it was difficult to secure the stability of installation, and it was difficult to secure weight.

When the block 1 having the lining block body 9 and the bottom block 10 is to be formed in the same manner as the lining block 1 of the present invention, as shown in FIG. A split mold 21 having 20 has to be used, which has a problem of high cost.

The size of the bottom block 10 can be freely set depending on the length of the extra length end 4a of the bag body 4 to be used and the filling amount of the concrete 6, and by increasing the size of the bottom block 10, The weight required for stable installation of the block 1 can be arbitrarily added while the outer shape of the lining block portion main body 9 of the construction surface lining block 1 is kept as it is. That is, it is possible to form the construction surface lining block 1 having various volumes and weights suitable for use conditions without replacing the female mold 2.

Further, the construction surface lining block 1 uses a bag body 4 having air permeability and is used while the bag body 4 is buried in the coating layer 6a formed on the outer surface of the block 1.
The work of removing the bag 4 can be omitted.

As shown in FIG. 4A, the concrete 6
The coloring material 11 is held in the bag body 4 used for filling the bag, the colored coating layer 6a 'is formed on the outer surface of the bag body 4, and the construction surface lining block 1 is colored simultaneously with the molding.

For example, a bag 4 having air permeability and water permeability, for example, a woven fabric is used as the bag 4, and the bag 4 holds a coloring material 11 such as a pigment. As a specific means, the bag body is immersed in a solution of the coloring material 11 such as a pigment to impregnate the coloring material 11 into the woven fabric. Alternatively, the coloring material 11 is applied to the bag body or is embedded therein.

The coloring material 11 may be any material as long as it is used for coloring the construction surface lining block 1, but an inorganic or organic pigment or dye is used.

As shown in FIG. 4B, when the cement paste containing water oozes out from the weave of the bag body 4 and the covering layer 6a is formed, the moisture contained in the cement paste contains the coloring contained in the bag body 4. The material 11 is eluted, and a colored coating layer 6a 'is formed on the outer surface of the bag 4. That is, the construction surface lining block 1
The outer surface of the block 1 is colored at the same time as the molding.

When the bag 4 does not have air permeability, the colored coating layer 6a 'is formed on the outer surface of the block 1 from which the bag 4 has been removed.

As means for injecting the concrete 6 into the bag body 4, an opening 13 is provided at the bag mouth 7, and the opening 13 is provided.
The filling of concrete into the bag body is performed via the. For example, a funnel 19 is used as the opening tool 13, the funnel 19 is fitted into the bag mouth, the fastening ring 22 is fitted around the outer periphery of the bag mouth, and the concrete 6 is maintained by the funnel 19 while maintaining the open state of the bag mouth 7. Inject.

Alternatively, as shown in FIGS. 5A and 5B, a ring or the like is attached to the bag mouth 7 as the opening tool 13. For example, as shown in FIG.
3a, and an outer fitting ring 13b is attached to the outer periphery of the bag mouth 7.

The opening edge of the bag mouth of the bag body 4 is sandwiched between the two rings 13a and 13b, and rigidity is given to the bag mouth 7 to stably maintain the opening state. 6 facilitates filling. Or, as shown in FIG. 5B,
When the bag 4 having elasticity is used, only the inner fitting ring 13a may be attached to keep the opening of the bag mouth 7 open.

Further, as shown in FIG. 4A, in addition to the above structure, before the concrete 6 is completely hardened, a retaining tool 14 such as a U-shaped fitting is inserted from the bag opening 7 or the bag 4 is pierced. Then, a part of the anchor 14 is embedded in the concrete 6, and the anchor 14 is integrally attached to the bottom block 10.

After the concrete 6 has hardened, the fasteners 14 are passed through the warp 15a and / or the weft 15b of the net 15 formed of a metal wire having a lattice structure, and the applicant has disclosed in Japanese Patent Publication No. 7-11121. As shown, a block unit in which a plurality of construction surface lining blocks 1 are integrally attached is formed.

Alternatively, the net 15 is placed on the unhardened construction surface lining block 1, and the end of the anchor 14 is unthreaded while the anchor 14 is passed over the warp 15 a and the weft 15 b of the net 15. After the concrete 6 is hardened, the plurality of construction surface lining blocks 1 integrated with the net 15 are inserted from the female mold 2 into the bag body 4 after the concrete 6 is hardened.
The entire block unit is removed to form the block unit.

As shown in FIG. 6A, one anchor 14 is attached to one construction surface lining block 1 and
Through the warp 15a and / or the weft 15b of the net 15.

As shown in FIG. 6B, as a modification included in FIG. 6A, one end of the anchor 14 is embedded in one of the adjacent construction surface covering blocks 1 and the other end is covered with the other construction surface covering. The above-mentioned block unit is formed by being embedded in the processing block 1.

In the block unit, a net 15 is laid on the construction surface 17 and a cover 17 '(such as soil or sand) is driven between the construction surface lining blocks 1 for installation.

[0054]

According to the present invention, by using a bag and a female mold together, the outer shape and size of the lining block main body that can be regulated and exposed by the molding cavity are maintained while maintaining the outer shape and size. Form a small-diameter bottom block within the extra length end of the bag body without regulating by the part, and adjust the size of the bottom block to secure the weight of the entire block required for stable installation At the same time, cover soil is sufficiently fed into the bottom block portion.

Further, by using a bag having air permeability, a coating layer is formed by cement paste oozing on the outer surface of the bag, and the bag is integrally embedded in the coating layer to form a cover. It can be used as it is without removal.

Using a bag made of biodegradable synthetic fiber, a work surface lining block that can be used without adversely affecting the environment is molded in a state in which the bag is integrally embedded in the coating layer.

Further, a colored coating layer is formed on the outer surface of the block by the coloring material held in the bag body, and the entire surface of the construction surface lining block is colored simultaneously with molding.

[Brief description of the drawings]

FIGS. 1A to 1E are cross-sectional views showing a method of forming a lining block according to the present invention in the order of steps.

FIG. 2A shows a bag formed of a woven cloth or the like and having air permeability, B shows a rubber bag having no air permeability, and C shows a bag which can be developed into a sheet. Perspective view.

FIG. 3 is an enlarged cross-sectional view showing a state in which a cover layer is formed on the surface of the bag using a breathable and water-permeable bag.

FIG. 4A is a sectional view showing a state in which a coloring material is contained in the bag body, and FIG.

FIG. 5A is an enlarged sectional view of a main part showing a state in which an inner fitting ring and an outer fitting ring are attached to a bag mouth as an opening tool of the bag body;
B is a partially cutaway perspective view showing a state in which only an inner fitting ring is attached to the bag opening, and C is an enlarged sectional view of a main part showing a state in which a funnel is attached to the bag opening.

FIG. 6A shows a state where the construction surface lining block is attached to the net via a retaining tool integrally embedded therein, and B shows two construction surface lining blocks attached to the net via one retaining tool. FIG. 3 is a side view showing a mounted state.

FIG. 7A shows a state in which the lining block main body and the bottom block are integrally formed in a state where the inside of the molding cavity is filled, and FIG. 7B shows the case where the lining block main body and the bottom block are not filled in the forming cavity. Sectional drawing which shows the state which was integrally molded.

8A is a cross-sectional view illustrating a conventional method of forming a lining block having a flat bottom surface using only a female mold, and FIG. 8B is a cross-sectional view illustrating a forming method of forming the block three-dimensionally using a split mold. .

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Construction surface lining block 2 Female type 3 Mold cavity 3a Opening surface 4 Bag body 4a Extra length end 4b Bag mouth residual end 5 Inner surface 6 Concrete 6a Coating layer 6a 'Colored coating layer 7 Bag mouth 8 String 9 Coating block Part body 10 Bottom block part 11 Colorant 13 Opening tool 13a Inner fitting ring 13b Outer fitting ring 14 Retaining tool 15 Net 15a Warp 15b Weft 17 Work surface 17 'Cover soil 18 Installation surface 19 Funnel 20 Injection 21 Split type 22 Fastening ring 23 Impermeable surface 24 support rod w maximum width

──────────────────────────────────────────────────の Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme court ゛ (Reference) E02B 3/14 301 E02B 3/14 301 E02D 29/02 303 E02D 29/02 303 F term (Reference) 2D018 EA01 2D048 AA29 4G052 AB04 AB18 AB22 AB26 AB42 AB46 AB51 AC01 4G053 BB11 BC11 CA03 CA04 CA05 CA06 CA16 CA21 CA23 EA50 EB03 4G058 GA01 GB04 GC03 GC07 GD11 GE01

Claims (5)

[Claims] A flexible bag is disposed in a female mold cavity, concrete is filled in the bag, and the bag is inflated by the internal pressure of the concrete to form the cavity in the mold cavity. In the molding method of the construction surface lining block, which is adapted to the inner surface of the construction surface and is released from the female mold together with the bag after the concrete is hardened, the bag has an extra long end which is not restricted by the molding cavity. A method for forming a lining block with a construction surface, characterized in that the extra length end is further filled with the concrete and a bottom block portion not regulated by the molding cavity is formed. 2. A flexible bag is disposed in a female mold cavity, concrete is filled in the bag, and the bag is inflated by the internal pressure of the concrete while the bag is inflated with the mold cavity. In the method of forming a construction surface lining block that is adapted to the inner surface of the construction surface and is released from the female mold together with the bag after the concrete is hardened, using a bag having air permeability as the bag, During the hardening process of the concrete to be filled in the bag, the cement paste is exuded on the outer surface of the bag, a coating layer is formed on the outer surface by hardening of the cement paste, and the bag is integrally embedded in the coating layer. A method of forming a lining block for a construction surface, characterized in that the block is provided for use. 3. The method according to claim 1, wherein a coloring material is held in the bag body to form a colored coating layer on the outer surface. 4. The method according to claim 1, wherein a bag made of biodegradable synthetic fiber is used as the bag. 5. A bag mouth opening for filling the concrete into the bag body, and the bag body is filled with concrete through the opening member. The method for forming the lining block according to the above description.