JPS59130939A - Disposable mold frame construction method - 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] The present invention relates to a method for pouring concrete into a waste form, and more specifically, it involves assembling a waste form using a finishing material that does not adhere well to poured concrete, and using this formwork material. This invention relates to a waste formwork construction method in which poured concrete and formwork are integrally connected by attaching an anchor member to the formwork in advance.

Hereinafter, conventional examples and embodiments of the present invention will be explained using examples in which a heat insulating material such as polystyrene foam is attached to a poured concrete surface, and a finishing material such as a calcium silicate plate is further attached.

Figure 1 is a sectional view showing the framework during concrete pouring in the concrete pouring method using heat insulating material as a waste form.
(1) is concrete formwork, (2) is insulation material such as polystyrene foam, (3) is separator (4), (5)
is a concrete formwork (6) is a pivot foot, (7) is a clamping bracket, and (8) is a concrete formwork (not shown) with a reinforcing bar.
]) is supported on the outer surface. (9) is poured concrete, and if the heat insulating material (2) has good adhesion to the concrete, the insulating material (2) will adhere to the concrete as is.

Figure 2 is a cross-sectional view showing the finished state after removing the formwork (1) and pasting a material such as gypsum board on top of the insulation material (2) with an adhesive (1υ). 01), for example, is one in which a vinyl succinate adhesive is applied to island-shaped neo at appropriate intervals, and a finishing sub-00 is pressure-bonded thereto.

In construction using such conventional methods, the adhesive absorbs moisture, causing problems such as deformation and cracks in the bonded area of the finishing agent, and also the difficulty of requiring a large amount of construction work.

Figure 3 is a cross-sectional view of a construction constructed using a construction method developed to eliminate such IfI points.The insulation material (2) and a finishing material with sufficient strength as a concrete formwork material, for example, 12 mm thick, are used in advance. A waste form is assembled using laminated material θ which has been laminated with calcium silicate plates using adhesive in advance, and concrete is poured.The insulation material (2) is made of polystyrene foam, etc., which has good adhesion to concrete. By applying this, it is possible to save labor during construction and eliminate the inconvenience caused by moisture absorption of the adhesive.

However, the laminated material Oa used in this construction method has the disadvantage that it is expensive because it is bonded in advance.

The present invention was made with the aim of solving the 70 points of the conventional construction method.The present invention was made with the aim of solving the 70 points of the conventional construction method. It is designed to be fastened with an anchor member configured so that it protrudes into the formwork, and the concrete 1.
When the concrete hardens, the insulation and finishing material are held in place by an anchor member whose tip is embedded in the concrete.

The present invention will be explained below.

FIG. 4 is a sectional view showing a framework during concrete pouring according to an embodiment of the present invention, in which (2a) shows the joint of the heat insulating material (2);
10a) is the joint of the finishing material QCI, and (1@ is the tapping screw-like reeding member. Figure 5 is a cross-sectional view showing the arrangement relationship between the heat insulating material (2) and the finishing material (I[). (2)
The joints (2a) and the joints (10a) of finishing material 00 are arranged in a staggered manner, and both ends of each joint are connected by reeding members (13).
This is to prevent the mortar of the concrete installed in FJ from flowing out from 2a).

When concrete is poured into the formwork assembled in this way, the tip of the anchor member 0 protrudes into the formwork for a sufficient length and is threaded, so that the poured concrete is It will hold firmly when cured. Therefore,
After the poured concrete (9) has hardened, remove the holding frame, clamping metal fittings (7), concrete formwork (1), pivot foot (6), etc., and then the insulation material (2) and the two-phase finish ( 1@ is finished in a state where it is cut into the concrete surface, and a large number of steps can be omitted.

Note that the heat insulating material (2) and the finishing material (10) are connected to the anchor member (
If the strength of the panels connected in one step does not have the required strength as a formwork, use appropriate methods such as stacking the concrete formwork (1) on top of the work material (IO 1-) to assemble the formwork. It can be reinforced.

Correct. In the above example, the insulation material and the shingle material were installed only on one side of the concrete to be cast. However, if the exterior and interior materials form the formwork for the interior and exterior surfaces, can be completed at the same time.

The above example shows a configuration in which the formwork is replaced with a panel that overlaps the heat insulating material and the finishing material, and connects them together with an anchor member, and is attached to the poured concrete, but this is not limited to this example. However, various modifications are possible. FIGS. 6(a) to 6(d) are sectional views showing the finished state of concrete after pouring concrete according to an embodiment of the present invention, and FIG.
) is an example of finishing material 0 () being directly attached to the concrete surface, for example, finishing material (1 (l is applied to asbestos cement board, wood wool cement board, calcium silicate board, ACL, etc.) .

In addition, in FIG. 3(b), a sheet 04) for preventing slippage, such as a polyethylene sheet, is interposed between the concrete (9) and the finishing material OQ.

In addition, FIG. 6(c) shows a structure in which a moisture-proof sheet 1- (+4) is inserted between the heat insulating material (2) and the finishing material (10).

In addition, in the same figure ((1), a lath mesh with a rift is layered on top of the insulation material (2) instead of the finishing material, and these are attached to the ashing member (
lad) (shown in Figure 7(d)) in concrete (9)
The structure is such that the outer surface is finished by applying mortar on top of the lath mesh α-uniform.

In this case, the rigid heat insulating side, such as polystyrene foam, disperses the stress during concrete pouring and prevents it from absorbing it, so this combination can provide the necessary strength as a formwork.

In each of the above embodiments, an example was shown in which a tapping screw-like anchor member 0→ was used, but this reeling force member can lock the insulation material, which is a foamed plastic with low mechanical strength, without breaking it. However, it does not need to be strong enough to be screwed in; it just needs to be able to withstand the tensile stress required to secure the insulation and finishing material to the concrete after concrete is placed. Therefore, its shape is different from ordinary self-tapping screws, with a thinner core.
On the other hand, this figure shows an embodiment in which a thread having a high thread and a coarse pitch is suitable, and the one shown in FIG. Also, the one shown in the same figure (1)) is applied when the work of fastening the heat insulating board (2) and the finishing material + IC) can be done from both sides, and the anchor member (], 31)) is used, for example. It is a plastic molded product, and has a groove θ6) for holding it in concrete, a flat head 07), and 0 holes on the ribs into which tapping screws 08) are screwed.

In addition, FIG. 6(c) shows an anchor member (13c) that can be used for both initial and post-installation of finishing materials, and is made of, for example, a plastic molded product.
A hexagonal wrench hole (A) for screwing (18c) into the heat insulating material (2), a flat head 07), and a ribbed hole 0@ into which a tapping screw 08) is screwed are formed. In addition, FIG. 6(d) is a perspective view of the reeling force member (13(1)) applied to the embodiment shown in FIG. 6(d).
A wire rod with a diameter of 10 mm is wound spirally with a pitch of 10 mm, and the head is formed into a circular shape with a diameter of 3 Q and a culm of 3 Q a, and is hardened. By grasping the straight part (17a) with a tool and screwing it in, the lath net 0
0 and the heat insulating material (2) can be fastened together. In addition, in the same figure (e), for example, a flat plate with a thickness of 1 to 16 m (6 to 10 m in width) is twisted to form a threaded part, and the other part is bent to form a head (1 piece). It can be used for the same purpose as (13d).

As explained above, the present invention is directed to a waste form construction method in which concrete is poured by assembling a waste form using two-phase steel, heat insulating material, etc. or a combination of these. In addition to assembling a waste form frame pass by overlapping them, anchor members configured to protrude a predetermined length into the waste form frame are attached to the tip of the waste form frame at appropriate intervals, and the waste form is When the frame is composed of two overlapping members on two sides, these are attached so as to be fastened together, and then concrete is poured. The tip of the anchor member is fixed to the hardened concrete, and the concrete is placed through the member made by scraping the waste formwork or the anchor member!・Since it can be attached directly to the surface, it can be used with finishing materials that have poor adhesion to concrete, insulation materials,
The desired combination of waterproofing sheets, insulation materials, fitting materials, moisture-proof sheets, etc. can be stacked and attached to the poured concrete surface, making it possible to use concrete that could not previously be used as a disposal material. -1. Assembling a waste form from two or more types of materials and placing it on the concrete surface without any pre-processing such as finishing materials with poor adhesion, insulation materials, adhesion, pasting, etc. This method has extremely great practical effects, such as reducing the number of man-hours and reducing costs.

[Brief explanation of drawings]

Figure 1 is a cross-sectional view showing a framework using a conventional heat insulating material as a waste form, Figure 2 is a cross-sectional view showing a state in which a finishing material is attached to the -L of the heat insulating material, and Figure 3 is a cross-sectional view showing a conventional heat insulating material. A cross-sectional view showing the state after construction of a construction method using a laminated material of concrete and finishing material as a waste form, FIG. 4 is a cross-sectional view showing the framework at the time of pouring concrete 1 of one embodiment of the present invention Figure 5 is a sectional view showing the insulation material and the arrangement of the two-phase joints; Figures 6 (a) to (d)
7A to 7E are cross-sectional views showing an anchor after construction according to the present invention, and FIGS. 7A to 7E are views showing an embodiment of the anchor portion to which the present invention is applied. Seam of code explanatory material, (3), separator, (4), (5
) Cone (7) Tightening metal fittings, (8) Reinforcement, (
9) Concrete, 00...Special L material, (IQa)
... Joint of finishing material, (I+) ... Adhesive. Laminated material of θ, Ql, (13a,) ~ (18e)
・Anchor parts. (14) Moisture-proof net, θ■ Lath mesh, α0/groove, α
η Flat head, θ8) Tapping screw, (1...ribbed hole, (A) hex wrench hole. Patent applicant Earthnics Co., Ltd. Figure 1 Figure 2 Figure 3 Figure 4 Figure 5 6 figures + 5 (1

Claims (3)

[Claims] (1) In the waste form construction method, in which a waste form is assembled using finishing materials, heat insulating materials, etc. or a combination of these and concrete is poured, the waste form is assembled using finishing materials, heat insulating materials, etc. or a combination of these. At the same time, on this waste form, anchor members configured such that their tip portions protrude a predetermined length into the waste form are placed at appropriate intervals, and the waste form overlaps members on two sides. If the concrete is made up of concrete, it is attached so as to be fastened together, and then the concrete is placed inside the waste formwork.
1- A waste formwork construction method characterized by pouring. (2) The waste form frame construction method according to claim 1, characterized in that a moisture-proof sheet is placed on the inner surface of the waste form frame or between members on two sides of the waste form frame. (3) The waste form frame construction method according to claim 1, wherein the waste form frame is constructed of a heat insulating material and a lath mesh superimposed on the outer surface of the heat insulating material.