JP2021011789A - Filling equipment - Google Patents

Abstract

To provide easy-to-use filling equipment that does not impose an excessive burden on the construction site.SOLUTION: A filling equipment according to one aspect of the present disclosure includes: a container body; a first container that is detachably provided to the container body and contains cement-containing liquid containing cement, water, inorganic acids, aggregates and thickeners; a second container that is detachably provided to the container body and contains an alkaline solution; a mixer that mixes the cement-containing liquid and the alkaline solution to obtain a cement slurry; transfer means for transferring the cement-containing liquid in the first container and the alkaline solution in the second container to the mixer; and a discharge port for discharging cement slurry from the mixer.SELECTED DRAWING: Figure 1

Description

The present disclosure relates to filling equipment.

The post-construction anchor is intended to attach new members to an existing building and integrate them. Conventionally, in the post-construction anchor method, a resin-based material or a cement-based material has been used as a filler. For example, Patent Document 1 discloses a post-construction anchor method and a filler used therein. The filler described in Patent Document 1 is a cement-based material, and contains a cement component, a fine aggregate, and a water-retaining component.

Japanese Unexamined Patent Publication No. 2014-189461

The resin-based material can be filled in the pores while being easily mixed by extruding the synthetic resin solvent and the curing agent, but the decrease in strength due to aged deterioration becomes a problem. While the strength of cement-based materials does not decrease in a normal usage environment, a large kneader or kneading place is required to mix the hydraulic composition constituting the material with water.

The present disclosure has been made in view of the above problems, and provides a filling tool for post-construction anchors using a cement-based material, which is easy to use and does not impose an excessive burden on the construction site. To do.

The filling device according to one aspect of the present disclosure is detachably provided on the container main body and the container main body, and contains a cement-containing liquid containing cement, water, an inorganic acid, an aggregate and a thickener. A first container to be used, a second container detachably provided to the main body of the container and containing an alkaline solution, and a mixer for mixing a cement-containing liquid and an alkaline solution to obtain a cement slurry. , A transfer means for transferring the cement-containing liquid in the first container and the alkaline solution in the second container to the mixer, and a discharge port for discharging the cement slurry from the mixer.

The filling tool is suitable for filling holes with cement slurry in post-construction anchor construction. According to the above filling device, when the cement-containing liquid and the alkaline solution are separately contained in the first and second containers, the cement hydration reaction does not proceed and both are mixed in the mixer. As a result, the hydration reaction of cement can proceed. Further, since the first and second containers are detachably provided with respect to the container body, the burden on the construction site can be sufficiently reduced. For example, if a cement-containing solution or an alkaline solution is prepared in a well-equipped manufacturing factory and the container containing the solution is delivered to the construction site, it is possible to easily replace the container with a container having a low remaining amount. ..

The capacities of the first container and the second container may be appropriately set according to the amount of the cement-containing liquid and the alkaline solution contained in these containers, and assuming that the capacity of the first container is 100 parts by volume. The capacity of the second container is, for example, 1 to 40 parts by volume. The capacity of the first container is, for example, 0.01 to 1 L.

The transfer means includes a first transfer means for transferring the cement-containing liquid in the first container to the mixer, and a second transfer means for transferring the alkaline solution in the second container to the mixer. can do. The transport means may be configured according to the scale of the filling device (for example, the discharge amount per unit time), but the transport means includes a piston that slides with respect to the inner surface of the container body. be able to.

The filling device according to the other aspect of the present disclosure is provided in the container main body portion and the container main body portion, and is a first accommodating portion for accommodating a cement-containing liquid containing cement, water, an inorganic acid, and a thickener. And, it is provided in the main body of the container and separates the second accommodating portion for accommodating the alkaline solution from the cement-containing liquid in the first accommodating portion and the alkaline solution in the second accommodating portion so as not to be mixed. It is provided with a separating means and a discharge port for discharging the cement slurry prepared by releasing the state in which the cement-containing liquid and the alkaline solution are separated from each other and mixing the cement-containing liquid and the alkaline solution.

The filling device is housed in a container body in a state where the cement solution and the alkaline solution are isolated. By releasing the separated state of these two liquids, the two liquids can be mixed in the container body or in the mixer, and the hydraulic filler (cement slurry) can be discharged from the filling device. ..

In one aspect, the isolation means comprises a membrane that separates the cement-containing solution from the alkaline solution. The filling device according to this aspect can be provided with a mechanism for releasing the state in which the cement-containing liquid and the alkaline solution are separated by breaking or removing the membrane. The filling device according to this aspect may have, for example, a structure in which the container main body is made of a flexible material and the film is broken by applying a force from the outside of the container main body.

In the present disclosure, the viscosity of the cement slurry is a non-Newtonian fluid from the viewpoint of suppressing deformation (sagging) due to the weight of the cement slurry after filling and achieving good fluidity during filling of the cement slurry. preferable. That is, the viscosity of the cement-containing liquid measured under the conditions of a temperature of 20 ° C. and a shear rate of 10 s ^-1 is, for example, 1 to 200 Pa · s, and is measured under the conditions of a temperature of 20 ° C. and a shear rate of 0.1 s ^-1. The viscosity of the cement slurry is, for example, 500 to 5000 Pa · s.

According to the present disclosure, there is provided a filling tool for post-construction anchors using a cement-based material, which is easy to use and does not impose an excessive burden on the construction site.

FIG. 1 is a cross-sectional view schematically showing a filling device according to the first embodiment of the present disclosure. 2 (a) to 2 (c) are perspective views schematically showing parts constituting the filling device according to the second embodiment of the present disclosure. FIG. 3A is a cross-sectional view schematically showing a state in which the openings of the first and second containers shown in FIG. 2C are sealed, and FIG. 3B is a third view in the sealed state. It is a front view which shows typically the opening of 1st and 2nd container. FIG. 4 is a cross-sectional view schematically showing the filling device according to the third embodiment of the present disclosure. FIG. 5 is a cross-sectional view schematically showing a state in which the membrane of the filling device shown in FIG. 4 is broken.

Hereinafter, a plurality of embodiments of the present disclosure will be described. The same components will be designated by the same reference numerals unless there is a reason for convenience, and duplicate description will be omitted. The configurations described in the following plurality of embodiments may be combined as appropriate.

<First Embodiment>
FIG. 1 is a cross-sectional view schematically showing a filling device according to the first embodiment. The filling device 10 shown in this figure uses a hydraulic cement slurry as a filling material. The filling device 10 includes a first container 1 containing a cement-containing liquid, a second container 2 containing an alkaline solution, a mixer 3 for mixing the cement-containing liquid and the alkaline solution, and an outlet of the mixer 3. A nozzle 7 provided in the container 7 and a container main body 8 are provided. The first container 1 and the second container 2 are detachably provided with respect to the container main body 8. The cement slurry is prepared by mixing the cement-containing solution and the alkaline solution in the mixer 3, and the cement slurry is discharged from the nozzle 7. In the filling device 10, the discharge amount of the cement slurry per unit time is, for example, about 0.01 to 10 L / min.

The filling tool 10 is applied to the post-construction anchor method, and is specifically used in the step of injecting cement slurry into the holes. The post-construction anchor method includes the following steps.
(A) Drill a hole at a predetermined position in an existing building.
(B) Clean the inner surface of the hole.
(C) Check the depth of the hole.
(D) A predetermined amount of cement slurry is injected into the pores.
(E) Anchor streaks are embedded in the holes containing the cement slurry.
(F) The cement slurry is hardened to fix the anchor streaks.
In the post-construction anchor method, in order to construct an anchor with sufficient strength, it is important to form a hole with a specified depth and to reliably inject a specified amount of cement slurry into this hole. ..

The filling device 10 has a first transfer means for transferring the cement-containing liquid in the first container 1 to the mixer 3 and a second transfer means for transferring the alkaline solution in the second container 2 to the mixer 3. And. In the present embodiment, the first transfer means includes a first piston 1a that slides with respect to the inner surface of the first container 1 and a flow path 1d provided at the tip portion 1c of the first container 1. .. In the present embodiment, the second transfer means includes a second piston 2a that slides with respect to the inner surface of the second container 2 and a flow path 2d provided at the tip portion 2c of the second container 2. .. The tip 1c of the first container 1 and the tip 2c of the second container 2 are detachably connected to the mixer 3. Instead of such a configuration, the first and second containers 1 and 2 and the mixer 3 may be connected via hoses (not shown), respectively.

The first piston 1a is driven by a manual, electric, hydraulic, pneumatic (blanger) or other power source, and is configured so that the amount of the cement-containing liquid transferred to the mixer 3 can be adjusted. The second piston 2a is driven by a manual, electric, hydraulic, pneumatic (blanger) or other power source, and is configured to be able to adjust the amount of the alkaline solution transferred to the mixer 3. The first piston 1a and the second piston 2a may be configured by one axis (the shaft 1b and the shaft 2b are integrally formed), or may be composed of two axes (the shaft 1b and the shaft 2b are independent of each other). It may be formed). In the case of uniaxial configuration, since the moving distances of the first piston 1a and the second piston 2a are the same, the mixing ratio of the two liquids depends on the cross-sectional area of the first container 1 and the second container 2. It is decided. On the other hand, when it is composed of two axes, the mixing ratio of the two liquids can be arbitrarily set by controlling both of them independently.

Hereinafter, each configuration of the filling device 10 will be described.

The first container 1 contains a cement-containing liquid. The second container 2 contains an alkaline solution. The first container 1 and the second container 2 are detachably provided with respect to the container main body 8. For this reason, by preparing a cement-containing liquid and an alkaline solution in a well-equipped manufacturing factory and delivering another first container 1 and a second container 2 containing the cement-containing liquid and the second container 2 to the construction site, the remaining amount is reduced. The replacement work with the first container 1 and the second container 2 can be easily performed. The first container 1 and the second container 2 may be separable or integrated.

The capacities of the first container 1 and the second container 2 may be appropriately set according to the amounts of the cement-containing liquid and the alkaline solution contained in these containers. Assuming that the amount of the cement-containing liquid used for preparing the cement slurry is 100 parts by volume, the amount of the alkaline solution used is, for example, about 1 to 40 parts by volume. Therefore, the capacity of the second container 2 may be sufficiently smaller than the capacity of the first container 1. That is, assuming that the capacity of the first container 1 is 100 parts by volume, the capacity of the second container 2 may be, for example, 1 to 40 parts by volume, and the lower limit is 1.2 parts by volume or 1.4 parts by volume. The upper limit value may be 38 parts by volume or 37 parts by volume. The capacity of the first container 1 is, for example, 0.01 to 1 L, the lower limit value may be 0.02 L or 0.04 L, and the upper limit value may be 0.9 L or 0.8 L. The capacity of the second container 2 is, for example, 0.001 to 0.4 L, the lower limit value may be 0.0012 L or 0.0015 L, and the upper limit value may be 0.38 L or 0.37 L.

The mixer 3 is, for example, a static mixer. The static mixer does not require power and has the effect of saving space and energy. The mixer 3 may be any as long as it can sufficiently and uniformly mix the cement-containing liquid and the alkaline solution. For example, the mixer 3 is composed of a tank for accommodating the cement-containing liquid and the alkaline solution and a propeller for stirring the liquid in the tank. It may be what is done.

The nozzle 7 is for discharging the cement slurry, and is detachably provided with respect to the tip of the mixer 3. The shape of the discharge port 7a of the nozzle 7 may be appropriately set depending on the viscosity and discharge rate of the cement slurry, the mode of the filling hole, and the like. As described above, in the post-construction anchor method, it is important to reliably inject a predetermined amount of cement slurry into the holes. Therefore, for example, it is preferable to supply the cement slurry to the bottom of the pores so that no voids are formed in the pores when the cement slurry is filled. That is, it is preferable to insert the nozzle 7 into the hole and supply the cement slurry to the hole with the discharge port 7a of the nozzle 7 close to the bottom of the hole. The nozzle 7 has an elongated shape, for example, as shown in FIG. The length of the nozzle 7 is, for example, 30 to 450 mm or 45 to 420 mm. The outer diameter of the nozzle 7 is, for example, 3 to 65 mm or 7 to 60 mm.

Hereinafter, the cement-containing liquid, the alkaline solution and the cement slurry will be described.

(Cement-containing liquid)
Cement-containing liquids include cement, water, inorganic acids and thickeners, aggregates. The cement-containing liquid becomes a hydraulically rigid cement slurry when mixed with an alkaline solution.

The cement is not particularly limited, and may be, for example, ordinary Portland cement, early-strength Portland cement, ultra-early-strength Portland cement, moderate heat Portland cement, low heat Portland cement, blast furnace cement, fly ash cement, silica fume cement, alumina cement and the like. .. Cement may be used alone or in combination of two or more.

The water is not particularly limited, but for example, tap water, distilled water, deionized water and the like can be used. The water content is preferably 20 to 100 parts by mass, more preferably 25 to 90 parts by mass, and further preferably 30 to 80 parts by mass with respect to 100 parts by mass of cement.

The inorganic acid preferably contains metaphosphoric acid, phosphorous acid, phosphoric acid, or phosphonic acid. Examples of inorganic acids containing metaphosphoric acid, phosphite, phosphoric acid, or phosphonic acid include diphosphorus pentoxide, diphosphoric acid, triphosphoric acid, aminotrimethylenephosphonic acid, 2-aminoethylphosphonic acid, 1-. Hydroxyethylidene-1,1-diphosphonic acid, ethylenediaminetetramethylenephosphonic acid, tetramethylenediaminetetramethylenephosphonic acid, hexamethylenediaminetetramethylenephosphonic acid, diethylenetriaminepentamethylenephosphonic acid, phosphonobutanetricarboxylic acid, N- (phosphonomethyl) imino It may be diacetic acid, 2-carboxyethylphosphonic acid, 2-hydroxyphosphonocarboxylic acid or the like. As the inorganic acid, one kind may be used alone or two or more kinds may be used in combination. The content of the inorganic acid is preferably 0.1 to 20 parts by mass, more preferably 0.1 to 15 parts by mass, still more preferably 0.1 to 10 parts by mass, and particularly preferably 0, with respect to 100 parts by mass of cement. .3 to 10 parts by mass.

The thickener preferably contains xanthan gum, daiyutan gum, starch ether, guar gum, polyacrylamide, carrageenan gum, agar, and clay mineral bentonite. The thickener may be used alone or in combination of two or more. Further, a cellulose-based, protein-based, latex-based, or water-soluble polymer-based thickener can be used in combination with the above-mentioned thickener.

As the aggregate, fine aggregate, coarse aggregate and the like can be used. The fine aggregate is not particularly limited, and river sand, land sand, sea sand, crushed sand, silica sand, hard blast furnace slag fine aggregate, blast furnace slag fine aggregate, copper slag fine aggregate, electric furnace oxidized slag fine aggregate, etc. are used. can do. The coarse aggregate is not particularly limited, and gravel, crushed stone, blast furnace slag coarse aggregate, electric furnace oxidized slag coarse aggregate and the like can be used. As defined in JIS A 0203: 2014 "Concrete terminology", a fine aggregate is an aggregate that passes through all 10 mm mesh sieves and 85% or more by mass through a 5 mm mesh sieve. It is an aggregate that stays at 85% or more in mass on a 5 mm net sieve. When the cement-containing liquid contains only fine aggregate as the aggregate, the content of the aggregate in the cement-containing liquid is, for example, 80% by mass or less, and 75% by mass, based on the total mass of the cement and the aggregate. It may be less than or equal to 70% by mass or less. When the cement-containing liquid contains fine aggregate and coarse aggregate as aggregate, the content of the aggregate in the cement-containing liquid is, for example, 90% by mass or less based on the total mass of the cement and the aggregate. It may be 87% by mass or less or 85% by mass or less. The content ratio of the fine aggregate in the aggregate is preferably 20 to 80% by mass, more preferably 30 to 70% by mass, and further preferably 40 to 55% by mass.

In addition to cement, water, inorganic acids and thickeners, the cement-containing liquid may contain inks, pigments, dispersants, coagulation regulators, swelling agents, shrinkage reducing agents, gypsum, defoaming agents and the like.

(Alkaline solution)
The alkaline solution is not particularly limited as long as it has a pH greater than 7 and 14 or less, but a solution having a pH of 9 or more and 14 or less is preferable. The alkaline solution may be, for example, a solution containing sodium hydroxide, amine, alkanolamine, sodium orthosilicate, lithium hydroxide, aminomethylpropanol, calcium hydroxide and the like.

The alkaline solution can appropriately contain a thickener for adjusting the viscosity. Thickeners include xanthan gum, daiyutan gum, starch ether, guagam, polyacrylamide, carrageenan gum, agar, clay mineral bentonite, cellulosic, protein, latex, and water-soluble polymer thickeners. It can be used alone or in combination of two or more.

The viscosity of the cement slurry is preferably a non-Newtonian fluid from the viewpoint of suppressing deformation (sagging) due to the weight of the cement slurry after filling and achieving good fluidity during filling of the cement slurry. That is, the viscosity of the cement-containing liquid measured under the conditions of a temperature of 20 ° C. and a shear rate of 10 s- ¹ is, for example, 1 to 200 Pa · s, and the lower limit may be 5 Pa · s or 10 Pa · s, and the upper limit may be. The value may be 190 Pa · s or 180 Pa · s. The viscosity of the cement-containing liquid measured under the conditions of a temperature of 20 ° C. and a shear rate of 0.1 s- ¹ is, for example, 500 to 5000 Pa · s, the lower limit may be 600 Pa · s or 650 Pa · s, and the upper limit may be. The value may be 4500 Pa · s or 4000 Pa · s. The viscosity of the cement-containing liquid can be adjusted, for example, by adjusting the water-cement ratio or the blending amount of the thickener.

(Cement slurry)
The pot life of the cement slurry discharged from the nozzle 7 is adjusted by changing the water-cement ratio of the cement-containing liquid and the alkaline solution, the dissolved mass of the alkaline solution, the type of solute, the amount of gypsum, the concentration of the inorganic acid, and the like. be able to. The pot life may be, for example, 30 seconds to 300 minutes, the lower limit may be 40 seconds or 60 seconds, and the upper limit may be 250 minutes or 200 minutes.

The cement slurry may contain a coloring component in addition to the cement-containing solution and the alkaline solution. Examples of the coloring component include paints and pigments. The coloring component may be added in any step until the cement slurry is obtained. For example, the coloring component may be contained in a cement-containing solution or an alkaline solution, or may be directly added to the mixer 3. From the viewpoint of preparing a sufficiently uniformly colored cement slurry in the mixer 3, it is preferable that the cement-containing liquid used in a larger amount than the alkaline solution contains the coloring component in advance.

<Second embodiment>
2 (a) to 2 (c) are cross-sectional views schematically showing parts constituting the filling device according to the second embodiment of the present disclosure. The filling device 20 according to the present embodiment includes a mixer 13 (FIG. 2 (a)), a container body 18 (FIG. 2 (b)), a first container 11 and a second container 12 (FIG. 2 (FIG. 2). c)) and. The cement-containing liquid is contained in the first container 11, and the alkaline solution is contained in the second container 12. The filling device 20 also uses a water-hardening cement slurry as a filling material. Hereinafter, the difference between the filling device 20 and the filling device 10 according to the first embodiment will be described.

As shown in FIG. 2C, the second container 12 is contained in the first container 11. The first and second containers 11 and 12 are detachably provided with respect to the container main body 18. That is, the filling device 20 is configured so that the first and second containers 11 and 12 can be inserted into the container body 18 with the piston 15 and the shaft 16 of the container body 18 removed. The first and second containers 11, 12 are made of a flexible material (for example, a laminated film containing polyethylene terephthalate or polypropylene), and by pushing the piston 15, the first and second containers 11, 12 are used. The cement-containing liquid and the alkaline solution in the container are pushed out to the mixer 13 via the tip portion 11b of the container. When the first and second containers 11 and 12 are housed in the container body 18, the tip end 11b of the container projects outward from the opening 18a of the container body 18 (see FIG. 3A).

When the filling device 20 is unused, the openings 11a and 12a of the first and second containers 11 and 12 are sealed with a single film F (isolating means) (FIGS. 3A and 3A and FIGS. 3 (b)). Since the openings 11a and 12a are sealed with the film F, the state in which the cement-containing solution and the alkaline solution are separated is maintained. The film F is, for example, a laminated film of a base film and a sealant film. Examples of the base film include paper, resin film and metal leaf. The film F is provided with an overhanging portion Fa on the peripheral edge portion. The film F can be peeled off by the user pinching the overhanging portion Fa with a finger and pulling it.

The mixer 13 shown in FIG. 2A is detachably provided with respect to the outer circumference of the tip end portion 11b of the first container 11. The mixer 13 has an elongated shape, the length of which is, for example, 30-450 mm or 45-420 mm. The outer diameter of the mixer 13 is, for example, 3 to 65 mm or 7 to 60 mm. As described above, in the post-construction anchor method, it is important to reliably inject a predetermined amount of cement slurry into the holes. Therefore, for example, it is preferable to supply the cement slurry to the bottom of the pores so that no voids are formed in the pores when the cement slurry is filled. That is, it is preferable that the mixer 13 is inserted into the hole and the cement slurry is supplied to the hole with the discharge port 13a of the mixer 13 close to the bottom of the hole. Further, a scale or the like may be provided on the outer surface of the container main body 18 or the outer surface of the shaft 16 so that it can be confirmed that a predetermined amount of cement slurry has been supplied into the holes.

<Third Embodiment>
FIG. 4 is a cross-sectional view schematically showing the filling device according to the third embodiment of the present disclosure. The filling device 30 shown in this figure also uses a hydraulic cement slurry as a filling material. When the filling device 30 is unused, the cement-containing solution and the alkaline solution are separated by a membrane 23 (isolating means) in the container body 25. When the filling device 30 is used, the film 23 is broken and the cement-containing liquid and the alkaline solution are mixed in the container main body 25 to prepare a cement slurry. Hereinafter, the specific configuration of the filling device 30 will be described mainly as being different from the filling device 10 according to the first embodiment.

The filling device 30 includes a first accommodating portion 21 for accommodating the cement-containing liquid, a second accommodating portion 22 for accommodating the alkaline solution, and a film 23 for separating the cement-containing liquid and the alkaline solution in the container body 25. A pushing mechanism 24 for destroying the 23, a spacer 26 for preventing the pushing mechanism 24 from accidentally breaking the film 23, an upper lid 27 for closing one opening of the tubular container body 25, and a container body. A discharge port 28 provided at the tip of the 25 and a cap 29 for closing the discharge port 28 are provided.

The container body 25 is made of a tubular member made of a flexible material. The container body portion 25 includes a first accommodating portion 21 and a second accommodating portion 22. The total capacity of the container body 25 (the sum of the capacity of the first storage unit 21 and the capacity of the second storage unit 22) is, for example, 0.01 to 1.4 L. The capacity of the first accommodating portion 21 is, for example, 0.01 to 1 L, the lower limit value may be 0.02 L or 0.04 L, and the upper limit value may be 0.8 or 0.9 L. The capacity of the second accommodating portion 22 is, for example, 0.001 to 0.4 L, the lower limit value may be 0.0012 L or 0.0015 L, and the upper limit value may be 0.37 L or 0.38 L. ..

The cement-containing liquid is contained in the first storage portion 21. Assuming that the amount of the cement-containing liquid is smaller than that of the first storage portion 21, as shown in FIG. 4, the cement-containing liquid and air coexist in the first storage portion 21. When air (gas phase portion) is present in the first accommodating portion 21, the cement-containing liquid and the alkaline solution are likely to be uniformly mixed by shaking the filling device 30 after breaking the membrane 23. The alkaline solution is contained in the second accommodating portion 22. The amount of the alkaline solution may be substantially the same as the volume of the second accommodating portion 22, or may be less than the volume of the second accommodating portion 22.

The film 23 separates the first accommodating portion 21 and the second accommodating portion 22. The material of the film 23 may be any material that is resistant to the cement-containing liquid and the alkaline solution and can be broken. Examples of the material of the film 23 include synthetic resin, natural resin, aluminum, silicate, aluminosilicate, iron, stainless steel, titanium alloy, nickel alloy, glass and the like.

The pushing mechanism 24 is for destroying the film 23. The pushing mechanism 24 has a cylindrical rod portion 24a and a tip portion 24b having an outer diameter larger than that of the rod portion 24a. The rod portion 24a reaches the inside of the second accommodating portion 22 and the vicinity of the film 23 through the hole 27a provided in the upper lid 27. By arranging the annular spacer 26 between the tip portion 24b and the upper lid 27, it is possible to prevent the pushing mechanism 24 from accidentally destroying the film 23. A packing is attached to the inner peripheral surface of the hole 27a of the upper lid 27 to prevent the alkaline solution from leaking.

By pushing the pushing mechanism 24 toward the container body 25 after removing the spacer 26, the film 23 is broken at the tip of the rod 24a, and the state in which the cement-containing liquid and the alkaline solution are separated is released. FIG. 5 is a cross-sectional view schematically showing a state in which the film 23 of the filling device 30 is broken. When the pushing mechanism 24 is returned to the original position, the alkaline solution in the second accommodating portion 22 flows into the first accommodating portion 21 through the broken portion of the membrane 23. By shaking the filling device 30, the cement-containing liquid and the alkaline solution are mixed in the container main body 25 to prepare a cement slurry. In order to prevent the rod portion 24a from accidentally coming out of the hole 27a, a protrusion may be provided at a predetermined position on the side surface of the rod portion 24a.

After shaking the filling device 30 well, the cap 29 is removed, and the cement slurry can be discharged from the discharge port 28 by applying a force from the outside to the flexible container body 25. After removing the cap 29, an elongated nozzle (for example, a nozzle similar to the nozzle 7 shown in FIG. 1) may be connected to the discharge port 28 so that the post-construction anchor method can be carried out more preferably.

1,11 ... first container, 1a ... first piston (first transfer means), 1d, 2d ... flow path, 2,12 ... second container, 2a ... second piston (second transfer) Means), 3, 13 ... Mixer, 7 ... Nozzle, 7a ... Discharge port, 13a ... Discharge port, 15 ... Piston (transfer means), 8, 18, 25 ... Container body, 10, 20, 30 ... Filling device , 11b ... Tip, 21 ... First accommodating portion, 22 ... Second accommodating portion, 23 ... Membrane (isolating means), 24 ... Pushing mechanism, 24a ... Rod portion, 27 ... Top lid, 28 ... Discharge port, F … Film (separation means).

Claims (11)

With the container body
A first container that is detachably provided to the container body and contains a cement-containing liquid containing cement, water, an inorganic acid, an aggregate, and a thickener.
A second container that is detachably provided to the container body and contains an alkaline solution, and
A mixer that mixes the cement-containing solution and the alkaline solution to obtain a cement slurry, and
A transfer means for transferring the cement-containing liquid in the first container and the alkaline solution in the second container to the mixer, and
A discharge port for discharging the cement slurry from the mixer, and
A filling device. The cement slurry has a viscosity measured at a temperature of 20 ° C. and a shear rate of ^{10s -1} is 1~200Pa · s, tamp of claim 1. The cement slurry has a viscosity measured at a temperature of 20 ° C. and a shear rate of 0.1s ^-1 is 500~5000Pa · s, tamp of claim 1 or 2. The filling device according to any one of claims 1 to 3, wherein the capacity of the first container is 100 parts by volume, and the capacity of the second container is 1 to 40 parts by volume. The filling device according to claim 4, wherein the capacity of the first container is 0.01 to 1 L. The transfer means includes a first transfer means for transferring the cement-containing liquid in the first container to the mixer, and a second transfer means for transferring the alkaline solution in the second container to the mixer. The filling device according to any one of claims 1 to 5, which includes a transport means. The filling device according to any one of claims 1 to 5, wherein the transfer means includes a piston that slides with respect to the inner surface of the container body. With the container body
A first accommodating portion provided in the container body and accommodating a cement-containing liquid containing cement, water, an inorganic acid, an aggregate and a thickener.
A second accommodating portion provided in the container body and accommodating an alkaline solution,
An isolation means that isolates the cement-containing solution in the first housing and the alkaline solution in the second storage so that they do not mix with each other.
A discharge port for discharging the cement slurry prepared by mixing the cement-containing liquid and the alkaline solution after the state in which the cement-containing liquid and the alkaline solution are separated from each other is released.
A filling device. The filling device according to claim 8, wherein the isolation means includes a membrane that separates the cement-containing solution and the alkaline solution. The filling device according to claim 9, further comprising a mechanism for releasing the state in which the cement-containing liquid and the alkaline solution are separated by breaking the membrane. The filling device according to claim 9 or 10, wherein the container body is made of a flexible material, and the film is broken by applying a force from the outside of the container body.

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