JPS62132608A - Method of molding composite concrete product with buffer layer - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

Detailed Description of the Invention (4) A buffer layer characterized by being formed by coating or dispersing a bonding material that promotes adhesive strength on the upper surface of the surface pallet to be laminated in the molding method according to claim 1. Method of forming concrete products.

3 Details of the Invention 11dI Lies (Field of Application of Industry-F) This invention relates to an n11-molding method for coating the surface of a concrete block with a buffer layer having abrasive properties.

<Prior art> The closest prior art to the present invention is the Japanese Patent Publication No. 60-33
0son, whose invention is disclosed in Publication No. 670, spreads a mixture of crushed rubber chips and adhesive on the bottom of a mold,
Immediately place cement on top of it, vibrate the formwork and fill the voids of the mixture with divinyl acetate resin, then fill the fresh concrete on top of it and vibrate it again to solidify and remove the mold. That is to do.

<Problems to be solved by the invention> In the conventional technology, a sticky rubber mixture made by mixing elastic rubber chips and an elastic material with an adhesive is directly poured into a concrete formwork while applying vibration, and then the mold is removed. Flatten it with a VC trowel so that it adheres to the bottom of the frame, and then apply emulsion adhesive on top of it (Step 7: Infiltrate the adhesive into the gaps between the elastic materials to bond them, and make a slump on the top surface.) To finish the top surface, the concrete IJ and the elastic rubber layer are solidified together in the formwork for 1'C, and after hardening, the product is removed from the formwork. was.

In this technique, the rubber chips are bonded to each other or to concrete exclusively within the formwork. Therefore, it is difficult to supply a fixed amount of sticky elastic material to the bottom of the mold in a layered manner, and it takes time and effort to flatten the bottom of the deep mold by tapping the top surface with a trowel. Furthermore, since the resin is filled into the voids after flattening (bonding at step 7), it takes effort and time to form and finish the elastic layer on the surface.

In addition, when the surface shape is uneven, the bottom surface is deep because the formwork has the height of the product, and the workability is poor even though it is possible to fill the bottom surface layer thinly and uniformly, resulting in burying. Lots of ingredients! ’ will be used.

Filling work at Chiro was done using the same mold, and it took a long time for the product to solidify and be removed from the mold, and the mold had to be left alone during that time, making it extremely inefficient. .

The purpose of the present invention is to form a thin and uniform layer on a surface N that has an uneven surface even if it is a sticky material, and to immediately remove the elastic material layer from the formwork and separate the concrete layer and rubber. The object of the present invention is to provide a molding method for firmly bonding elastic layers.

<Means for Solving the Problems> In order to achieve the purpose of one-to-one distribution, the present invention first mixes elastic materials such as rubber chips, which are popular among customers, with the addition of adhesive viscous liquid or viscous powder, and then mixes them in advance. A dish-shaped surface pallet is filled with the required amount to form a coating surface layer, and when molding the product, the dish-shaped surface pallet is supplied to the bottom of the formwork, and dry concrete is immediately supplied to the top surface of the surface pallet and vibrated. Either by pressure forming, or by covering the top of the formwork with a dish-shaped pallet after forming the concrete part, vibration and press forming are performed from the top surface, and the mold is immediately removed from the top or bottom of the formwork in the curing process. This allows it to solidify together with the elastic material layer mixed with the concrete.

This reduces the time required to fill the surface layer during product molding, and even if the surface has unevenness, the surface formation work is performed using a low-height pallet, making it easy to coat thinly. -Efficiency can be significantly improved.

<Function> In the lamination molding method of the present invention, the elastic material rubber to be laminated is placed on a dish-shaped surface pallet that also serves as a bottom plate, and the desired surface pallet is filled with an elastic material prepared by adding adhesive viscous liquid or viscous powder and mixing it to the desired surface pallet. Since the upper surface layer is formed, the surface finish is good, and even if the surface shape is uneven, it can be formed thin and uniformly.

In addition, it is easy to apply adhesives, cement, viscous liquid, etc. directly to the surface of the pallet depending on the shape of the joint with the concrete and if necessary, making it possible to strengthen the bond between the concrete and the covering elastic material. Ta.

<Example> Figure 1 is an overall front view showing the forming situation, Figures 2 to 6 are explanatory diagrams of the joining operation of the elastic material and concrete using a dish-shaped pallet, and Figures 8.9 and 9 show the forming process. FIG.

1 is a resin that binds the elastic material, 5 is a dish-shaped pallet that forms the covering elastic material layer, 11 is a press plate that presses the upper surface of the concrete within the formwork, 13 is a concrete supply hopper, and 16 is a vibrator. .

The elastic materials used here to form the buffer layer include fillers that fill the gaps between the materials and additive materials that improve waterproofness and durability.

Next, the molding method of the present invention will be explained. First, in order to create a buffer layer on the upper surface of the concrete, a mold release agent 6 is applied to the inner surface of the dish-shaped pallets that are sequentially fed onto the roller conveyor 9, and then moved to the table vibrator 15 and mixed with a mixer (not shown). ) to bond the elastic materials A of the rubber chips to each other and create a coating layer that enables bonding with concrete. While hanging, rubber chips are put into the dish-shaped pallet 5, and the concrete to be laminated is smoothed with a trowel to form a predetermined shape surface.

Since the thickness of the buffer layer is approximately 10%, the height of the dish-shaped pallet 5 is also low, so even if there is an uneven shape, it is easy to finish by hitting with a trowel so that it adheres well to the bottom surface.

After the elastic material is formed into the dish-shaped pallet 5 in this manner, it is moved to a rank (not shown) for bonding the buffer layer to promote initial hardening.

On the other hand, in order to cover and mold the buffer layer A of the rubber chips 4, the tray-shaped pallet 5 which has been initially cured is placed on the fixing rod 19 of the tray-shaped pallet, and is moved through the lifting cylinder 20 as shown in FIG. It is fixed to the bottom of the formwork 17.

Next, as shown in Figure 3, attach the conc IJ to the upper surface 5' of the old pallet.
- In order to stack concrete, the sliding cylinder 14 is moved differentially without applying vibrations, and concrete is fed into the formwork 17 until it is filled to the top surface of the formwork, and the sliding hopper is returned to its normal position as shown in Fig. 5. The press plate 11 is lowered to vibrate and pressurize to finish the upper surface as shown in the figure. ○Next, the press plate 11 is returned to the press device 10, and the lifting cylinder 20 is differentially moved in order to demold the molded product. Dish-shaped pallet in formwork 5
Push up the bottom surface with a rond and remove it to the top of the formwork.

The demolded product F is immediately moved to a curing room by an off-bearer (not shown). Subsequently, the dish-shaped pallet 5 to be molded next is placed on the fixing rod 19 on the upper surface of the mold, and the dish-shaped pallet 5 is fixed to the bottom of the mold in the manner described above, and the next molding is performed.

When the dish-shaped pallet is peeled off from the product F after the initial curing of the product formed in this way is completed, the concrete IJ-G layer C and the buffer layer of elastic material are firmly bonded to each other, resulting in a concrete product with an elastic surface. F can be done.

An example of an instant demolding method using a plate-shaped pallet has been described above, but the forming method of the present invention does not necessarily limit the plate-shaped pallet to the lower part of the formwork, for example, concrete is first formed on the lower surface. Then, cover the top surface with a tray-shaped pallet filled with a layer of rubber chips, press it with a press plate, and remove it from the top of the formwork or turn it over and release it from the bottom. stop and fi the concrete
The range of applications is extremely wide, such as layering, then lowering to the bottom and layering another different material in the space formed.

Furthermore, in the molding method of the present invention, it is easy to mold and finish the rubber tip into a porous buffer layer in advance by using a dish-shaped pallet, so water-permeable products that also have elasticity can be molded efficiently. In addition, in order to make the bond stronger, a hydrophilic resin or emulsion is applied to the top surface of the dish-shaped pallet as shown in Figure 7.
It can be formed freely depending on the intended use of the product, such as by applying cement powder, dispersing cement powder, and providing an uneven shape that increases the bonding area and increases peel resistance.

An example of the composition of the elastic material A and the concrete IJ-C of the above embodiment is shown below.

[Elastic material]

Crushed tire rubber chips (particle size 1.5-3.0 mm)
00t Polyester resin 118F Naphthene cobalt 6v Methyl ethyl ketone peroxide 12F Calcium carbonate
10 (1 [Concrete] Cement 100 fl
f water
No. 37076 crushed stone (particle size 5'Xn-13%)
] 687? sand
30fi2r (Effects of the Invention) The molding method of the present invention is to fill a required amount of the elastic material layer into a dish-shaped pallet, etc., and then shape the surface portion into a shape of 5y.
Then, when molding the product, all you have to do is connect the surface pallet 1 to the concrete part, so b! Since the process of forming the elastic material layer within the form frame is omitted, even elastic materials that are highly viscous and difficult to fill can be filled and formed in advance, allowing you to freely adjust the adhesive and gel time according to the material used. Can be set.

This makes it easy to form concrete and non-concrete concrete, and since it is an instant tax type using Basabafu concrete, equipment costs for formwork etc. are greatly reduced, production costs are significantly reduced, and the economic effect is extremely high. There is 〇

[Brief explanation of drawings]

Figure 1 is an overall front view showing the molding situation, Figures 2 to 6 are explanatory diagrams of the molding operation, Figure 7 is another example of filling with rubber chips, and Figures 8 and 9 are the molded products. FIG. 1O is a sectional view of a three-layered product. A: Buffer layer of elastic moon, C: Concrete, 2: Emulsion, 3:
・Cement, 7... Front mold agent nozzle, 12...
・・・Parent Bottsk-118・・・Elevating board. Patent applicant Chiyoda Giken Kogyo Co., Ltd. Schiff 17I ;141:1 1'? Trout 5 Zue 21 1'I I 4+9 1-7F

Claims (4)

[Claims] (1) A covering layer that can be bonded to concrete within a pallet by filling a surface pallet with a mixture of granular or fragmentary elastic material and adhesive or viscous liquid to the required thickness to form the surface. The above-mentioned surface pallet is supplied to the bottom or top surface of an instant demolding concrete forming form, and is laminated with concrete within the same form, and pressure vibration forming is performed during or at the end of the lamination of the above-mentioned surface pallet and concrete. The elastic material layer is integrated and immediately demolded, and the concrete layer is hardened in the curing process.
A method for forming a composite concrete product with a buffer layer characterized by increasing the mutual bonding strength of the above-mentioned materials and the bonding strength with the buffer layer. (2) A method for forming a composite concrete product with a buffer layer, which is characterized in that the elastic material layer is porous in the forming method according to claim 1. (3) A method for molding a composite concrete product with a buffer layer, characterized in that the elastic material is a crushed rubber tire in the molding method according to claim 1. (4) A method for forming a composite concrete product with a buffer layer, characterized in that a bonding material that promotes adhesive strength is applied or dispersed on the upper surface of the covering layer of a surface pallet in the forming method according to claim 1. .