JP2000345633A - Joint structure of joint cross part of alc wall panel - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a joint structure of a joint cross part of an ALC wall panel intended for deodorization which is easy and sure in execution even when a structural skeleton is present, and the waterpoof property, airtightness, and deodorization can be ensured. SOLUTION: An adhesive or adhesive-elastic tape 5 is affixed on at least one side of a butt end surface of a small joint 3 of an adjacent ALC wall panel 1, and an extension part 5a of the elastic tape 5 is folded along a large joint 2 at a joint cross part, and affixed on a butt end surface. An elastic tape 5' is affixed across the joint cross part on the extension part 5a of the elastic tape 5 in an overlapping manner. An adhesive or adhesive and regular-sized elastic sealing material 4 is continuously affixed on at least single surface of the butt end surface of the large joint 2 without being divided at the joint cross part. An adhesive or adhesive shapelss material is executed on a joining part of the elastic tapes 5, 5' and the regular-sized elastic sealing material 4.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a joint structure at an intersection of joints of an ALC (lightweight cellular concrete) wall panel, and more particularly to an ALC wall panel used for a garbage disposal facility for the purpose of preventing odor and leak. Is related to the joint structure of the joint intersection.

[0002]

2. Description of the Related Art Buildings using precast ALC wall panels include ALC wall panels, frames and ALC.
There are various gaps, that is, joints between the wall panels, between the foundation and the ALC wall panel, including the meaning of clearance and the like. ALC wall panel short joint direction joint spacing is 5
Generally, large joints of about 25 mm and small joints of about 0.5 to 3 mm in the longitudinal direction of the ALC wall panel. In this case, the joint spacing in the longitudinal direction of the ALC wall panel is generally about 5 to 25 mm when the joint is used as an expansion joint.

Conventionally, as a waterproof treatment for these joints,
Conventionally, a fixed or irregular sealing material is applied to a portion exposed on the joint surface or a gap inside the joint to waterproof the joint.

On the other hand, in recent years, it has become necessary to prevent odors from leaking from buildings that generate strong odors inside such as garbage incineration plants. It is said that this odor is mainly due to leakage from the above-described joint gap, and in order to ensure deodorization, similar to the conventional sealing performed for the purpose of heat insulation and waterproofing, the joint is formed at the joint. The sealing material is double-coated on both sides of a portion exposed on the surface of the joint portion so as to sandwich the gap portion. In particular, joints where joints are likely to be weak points have been dealt with by applying an amorphous sealing material in single or multiple layers.

[0005]

However, the object of waterproofing is liquid water, and odor propagation is caused by molecular motion of gas molecules having particles much smaller than liquid water, and odor molecules are volatilized. Due to its nature, the same sealing as in the past could not provide a sufficient effect.

In addition, there are restrictions on the place where the amorphous sealing material can be installed due to the existence of the structural frame and the like, and it is extremely difficult to apply the amorphous sealing material to all portions on both sides where the surface of the joint is exposed. In addition, even if a seal is formed, a stable deodorizing effect is not always obtained, and it cannot be guaranteed that airtightness can be secured at all locations.

[0007] Further, when a fixed-type sealing material is used, since the fixed-type sealing material is divided at the joint intersection, waterproofness can be secured but airtightness cannot be secured. Therefore, as a result, airtightness could not be ensured at all the joint intersections, causing odor leakage.

[0008] The present invention is to solve the above problems,
The aim is to provide a joint structure at the intersection of ALC wall panels where the construction can be performed easily and reliably even with the presence of a structural skeleton, and the waterproof, airtight and odor-proof properties can be ensured. It is assumed that.

[0009]

According to the present invention, there is provided a joint structure of a joint of an ALC wall panel according to the present invention, comprising: a large joint having a small face interval between the ALC wall panels of about 5 mm to 25 mm; The edge spacing between ALC wall panels is 0.5
A joint structure at an intersection where a small joint of about 3 mm to 3 mm intersects, wherein at least one surface of a fixed-form elastic sealing material made of a foam having closed cells therein is attached to a small opening of the large joint. At least one side of an elastic tape is stuck to a small edge surface of the small joint, and the fixed elastic sealing material is applied without being divided at a joint of the large joint and the small joint. It is characterized by.

[0010] Since the present invention is constructed as described above, airtightness is ensured for the small joint by the elastic tape, and airtightness is ensured for the large joint by the fixed elastic sealing material. Also, at the intersection of the joints of the large joints and the small joints, the fixed elastic sealing material is applied without being divided, so that waterproofness, airtightness, and odor prevention can be secured also at the intersections of the joints.

It is preferable that the elastic tape contains butyl rubber as a main component and has an adhesive property.

[0012] Further, in the case where the elastic tape is extended longer than the small joint length, and the extended portion is bent along the large joint at the joint intersection of the large joint and the small joint. The elastic tape that secures the airtightness of small joints and the fixed elastic sealing material that secures the airtightness of large joints are tightly connected to each other, so that the airtight performance at the joint intersection can be improved. Reliable waterproofness, airtightness, and deodorization can be ensured.

When an elastic tape of the same material as that of the elastic tape is stuck on the bent corner of the elastic tape extension, a minute gap can be filled to further secure the airtight performance.

In the case where an irregularly shaped material is applied in the thickness direction of the ALC wall panel at a portion where the fixed elastic sealing material and the elastic tape are joined, the fitting portion between the fixed elastic sealing material and the elastic tape may be formed. The airtight performance can be further secured by filling the minute gap.

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a joint structure at an intersection of an ALC wall panel according to the present invention will be specifically described with reference to the drawings. FIG. 1 is a perspective view showing a configuration around a joint intersection of a joint structure of an ALC wall panel according to the present invention, and FIG. 2 is a front sectional view of a joint structure of a joint structure of the ALC wall panel according to the present invention. It is.

FIG. 3A is a sectional view taken along the line AA of FIG.
FIG. 3 (b) is a cross-sectional view of a joint structure of a large joint where a small face interval between ALC wall panels is close to about 5 to 25 mm.
It is a figure which shows typically the relationship between the thickness of the fixed-form elastic sealing material in the large joint shown in (a), and the small face spacing of ALC wall panel.

FIG. 4 is a cross-sectional view of the joint structure of the large joint shown in FIG. 3A in the case where a fixed or irregular sealing material is used on both sides of the surface of the ALC wall panel together with a fixed elastic sealing material. .

FIG. 5 is a sectional view taken along the line BB of FIG.
FIG. 6 is a cross-sectional view of a joint structure of a joint having a small joint surface in which a small gap between wall panels is close to about 0.5 mm to 3 mm, and FIG. In addition, the fixed or irregular sealing material is ALC
It is sectional drawing when used on both sides of the wall panel surface.

FIG. 7 is a cross-sectional view showing an example of the joint structure of the joint shown in FIG. 5 in which the fore-edge surface has an uneven portion formed in the in-plane direction of the ALC wall panel, and FIG.
FIG. 4 is a cross-sectional view of a case where a fixed or irregular sealing material is used on both sides of an ALC wall panel surface in combination with an elastic tape in the joint structure of a small joint shown in FIG.

FIG. 9 is a perspective view showing a procedure for constructing the joint in the joint structure of the joint of the ALC wall panel according to the present invention.

In FIGS. 1 and 2, ALCs which constitute an outer wall or an inner wall of a building in which a strong odor is generated, such as a garbage incineration plant, are arranged in a lateral direction and a height direction through joints. (Lightweight cellular concrete) Wall panel 1
A large joint 2 in which the small face interval between the ALC wall panels 1 is close to each other at a distance of about 5 mm to 25 mm, and a small joint face between the ALC wall panels 1 is close to each other at a distance of about 0.5 mm to 3 mm. And a small joint 3 in a direction intersecting with the large joint 2.

As shown in FIGS. 2 and 3 (a), a foam having closed cells inside the ALC wall panel 1 along the entire length of the ALC wall panel 1 over the entire length of the ALC wall panel 1 is provided. A fixed elastic sealing material 4 made of a body is continuously adhered to the small face of the ALC wall panel 1 without being divided at a joint intersection where the large joint 2 and the small joint 3 intersect.

As shown in FIG. 2 and FIG. 5, a small joint 3 in the height direction of each ALC wall panel 1 of the small joint 3 is provided substantially at the center of the ALC wall panel 1 in the thickness direction. The elastic tape 5 is stuck over the entire length.

As shown in FIG. 3 (b), the fixed elastic sealing material 4 has a thickness of about twice as large as the small face interval of the large joint 2 before being compressed and placed on the large joint 2. It is compressed and used when it is attached to the joint 2 and placed. The width of the standard elastic sealing material 4 is from 20 mm to 5
About 0 mm is desirable.

The fixed elastic sealing material 4 is a predetermined joint 2
, Which is easily compressed and deformed in order to facilitate the construction at the small face spacing, and uses the restoring force of the fixed elastic sealing material 4 to make contact with the small face of the adjacent ALC wall panel 1 of the large joint 2. In order to eliminate minute gaps, it is restored quickly after compression deformation.

The restoring force of the compressed standard elastic sealing material 4 is perpendicular to the small surface of the ALC wall panel 1 at the joint 2 so as to eliminate a small gap between the small surface of the ALC wall panel 1 and the standard elastic sealing material 4. Acts in the direction. Further, the fixed elastic sealing material 4 of the present embodiment is made of a foam having closed cells, and has a lower gas permeability than the base material of the ALC wall panel 1.

As the material, various materials can be used as long as they have the above-mentioned characteristics. In particular, a product (trade name "Complicealer N") manufactured by Nitto Defense Construction Co., Ltd. is preferable.

The elastic tape 5 is extended longer than the length of the small joint 3 corresponding to the small edge surface of each ALC wall panel 1. As shown in FIGS. 2 and 9, the large joint 2 and the small joint 3 are connected to each other. Are extended and bent along the joints 2 at the joint intersection where they intersect, and are adhered to the small face of the ALC wall panel 1.

The width of the elastic tape 5 is from 50 mm to 80 mm
The thickness of the elastic tape 5 is desirably slightly larger than the gap between the small faces in the small joint 3, for example, about 0.7 mm to 3.5 mm. The length of the extended portion 5a extended longer than the length of the joint 3 of the elastic tape 5 is 2
It is desirable to secure about 0 mm or more.

As shown in FIGS. 2 and 9, the extended portion 5a of the elastic tape 5 is bent and overlapped on the bent corner portion of the portion attached to the fore-edge surface of the ALC wall panel 1 to straddle the small joint 3. The elastic tape 5 'of the same kind as the elastic tape 5 is stuck. It is desirable that both surfaces of the elastic tape 5 'have tackiness or adhesiveness.

As shown in FIG. 9, the fixed elastic sealing material 4 is not divided at the joint intersection where the large joint 2 and the small joint 3 intersect with each other by being superimposed on the elastic tapes 5 and 5 '. And stick it together. In addition, an irregularly shaped material is applied in the thickness direction of the ALC wall panel 1 at a portion where the fixed elastic sealing material 4 and the elastic tapes 5 and 5 'are connected.

As the elastic tape 5, an elastic material such as rubber or foam can be used. As the rubber-like elastic tape 5, a synthetic rubber having a Mooney viscosity of 30 to 90, preferably 40 to 80 can be used. For example, butyl rubber, polyisoprene, polyisobutylene, chloroprene, nitrile butadiene, These mixed materials can be applied. Particularly, those containing butyl rubber as a main component are preferable.

The foamed elastic tape 5 is preferably a closed cell and has an apparent density of 0.05 to 0.60.
(G / cm ³ ), more preferably 0.125 to
It is good to be about 0.310 (g / cm ³ ).

As materials, butyl rubber, phenol,
A material containing epoxy, chloroprene, neoprene, polyethylene, or the like as a main component, a mixture thereof, or the like can be used.

Weight fraction of solid phase at apparent density Ws,
And the volume fraction Vs are calculated from the following equation.

[0036]

(Equation 1)

It is preferable that the elastic tape 5 has adhesiveness to the elastic tape 5 itself. However, when a material having no adhesiveness is used, an adhesive is applied to the surface or a double-sided tape is attached. May be used.

As shown in FIGS. 4 and 6, another fixed or irregular sealing material 6 may be used on both sides of the ALC wall panel 1 of the small joint 3 and the large joint 2.

The fixed or irregular sealing material 6 used in combination may be applied in a single layer or in multiple layers. In FIGS. 4 and 6, multiple and elastic tapes 5 or fixed elastic sealing members are used. 4 shows an example in which both sides of the surface of the ALC wall panel 1 are sandwiched between the ALC wall panels 1.

Further, the fore-edge surface of the ALC wall panel 1 does not have to be constituted by only one plane. 7 and 8
As shown in the figure, when the protruding shape 7 protruding inward of the panel surface is present on the fore-edge surface of the ALC wall panel 1,
7 and 8 may be applied to the protruding portion 7, or may be provided on a small base surface portion other than the protruding portion 7 and formed of a flat surface. Further, it may be applied over the fore-edge base portion and the projection-shaped portion 7.

It is not necessary that the entire surface of both sides of the elastic tape 5 be in contact with the fore-edge surface of the ALC wall panel 1 in the small joint 3, but both sides of the elastic tape 5 when viewed from a direction perpendicular to the fore-edge surface. At least a part of the surface must be provided so as to be continuously in contact in the longitudinal direction of the fore-edge surface.

Also, at the joint intersection where the large joint 2 and the small joint 3 intersect, the joint between the elastic tape 5 and the elastic tape 5 ', which is in contact with each other, the joint between the elastic tape 5 and the fixed elastic sealing material 4, and By applying an adhesive or sticky amorphous material, for example, an amorphous sealing material or an adhesive, to the joint between the elastic tape 5 'and the fixed elastic sealing material 4, it is possible to further eliminate minute gaps.

According to the above configuration, airtightness of the large joint 2 is ensured by the fixed elastic sealing material 4, and airtightness of the small joint 3 is ensured by the elastic tape 5. In addition, at the intersection between the joints 2 and the joints 3, the fixed elastic sealing material 4 is applied without being divided, so that waterproofness, airtightness, and deodorization can be secured even at the joints.

Further, the elastic tape 5 has an extended portion 5a which is extended longer than the length of the small joint 3, and the extended portion 5a
Is bent along the large joint 2 at the intersection of the large joint 2 and the small joint 3, so that the elastic tape 5 for securing the tightness of the small joint 3 and the tightness of the large joint 2 are secured. Since the fixed elastic sealing material 4 is closely contacted and connected, the airtightness at the joint intersection can be improved,
More reliable waterproofness, airtightness, and deodorization can be secured.

Further, the elastic tape 5 'made of the same material as the elastic tape 5 is stuck on the bent corner of the extension 5a of the elastic tape 5, so that minute gaps are securely filled to further secure airtightness. I can do it.

Further, by providing the irregularly shaped material in the thickness direction of the ALC wall panel at the portion where the fixed elastic sealing material 4 and the elastic tape 5 are joined, the fixed portion between the fixed elastic sealing material 4 and the elastic tape 5 can be formed. Even minute gaps can be reliably filled to further secure airtightness.

[0047]

As described above, the present invention has the above-described structure and operation, so that the construction can be easily and reliably performed even when a structural body or the like is present, and the waterproofness, airtightness, and odor prevention can be ensured. A joint structure at the joint of the ALC wall panel can be provided.

That is, small joints between the ALC wall panels are sealed with an elastic tape, and large joints are sealed with a fixed elastic sealing material. Also, at the intersection of the joints of the large joints and the small joints, the fixed elastic sealing material is applied without being divided, so that waterproofness, airtightness, and odor prevention can be secured also at the intersections of the joints.

In the case where the elastic tape is extended longer than the small joint length and the extended portion is bent along the large joint at the intersection of the large joint and the small joint, The elastic tape that ensures the airtightness of the joint and the fixed elastic sealing material that ensures the airtightness of the large joint are closely connected, so that the airtight performance at the intersection of the joints can be improved, so more reliable waterproofing Airtightness and deodorization can be secured.

Further, when an elastic tape of the same material as the elastic tape is stuck on the bent corner of the elastic tape extension, a minute gap can be filled to further secure the airtight performance.

When an irregularly shaped material is applied in the thickness direction of the ALC wall panel at a portion where the fixed elastic sealing material and the elastic tape are joined, a minute gap is formed between the fixed elastic sealing material and the elastic tape. And airtightness can be further secured.

Therefore, it is possible to prevent the intrusion of rainwater and the like, and it is possible to secure high airtightness by using an elastic tape and a fixed elastic sealing material made of a material having a low gas permeability. Since the propagation of the odor generated by the molecular motion can be prevented, a high odor prevention can be secured.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a configuration around a joint intersection of a joint structure of a joint of an ALC wall panel according to the present invention.

FIG. 2 is a front sectional view of a joint structure at a joint of an ALC wall panel according to the present invention.

3A is a cross-sectional view taken along the line AA in FIG. 2, and FIG. 3B is a cross-sectional view of a joint structure of a large joint in which a small face interval between ALC wall panels is close to about 5 mm to 25 mm; FIG. 4 is a diagram schematically showing the relationship between the thickness of the fixed elastic sealing material at the large joint shown in FIG.

FIG. 4 is a cross-sectional view of the joint structure of the large joint shown in FIG. 3A, in which a fixed or irregular sealing material is used on both sides of the surface of the ALC wall panel together with a fixed elastic sealing material.

FIG. 5 is a sectional view of a joint structure of a small joint in which a small face having a small face spacing between ALC wall panels close to about 0.5 mm to about 3 mm is formed as a plane. is there.

FIG. 6 is a cross-sectional view showing a case where a fixed or irregular sealing material is used on both sides of an ALC wall panel surface together with an elastic tape in the joint structure of the small joint shown in FIG. 5;

FIG. 7 is a cross-sectional view showing an example of a case where the fore-edge surface has an uneven portion formed in the height direction of the ALC wall panel in the joint structure of the joint shown in FIG.

8 is a cross-sectional view of the joint structure of the joint shown in FIG. 7, in which a fixed or irregular sealing material is used on both sides of an ALC wall panel surface together with an elastic tape.

FIG. 9 is a perspective view showing a procedure of constructing the joint in the joint structure of the joint of the ALC wall panel according to the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... ALC wall panel 2 ... Large joint 3 ... Small joint 4 ... Regular elastic sealing material 5, 5 '... Elastic tape 5a ... Extension part 6 ... Sealing material 7 ... Projection shape part

Continuation of the front page (72) Inventor Minoru Yokota 2-6-3 Otemachi, Chiyoda-ku, Tokyo New Nippon Steel Corporation (72) Inventor Yasunori Kato 2-6-3, Otemachi, Chiyoda-ku, Tokyo New Nippon Steel Corporation F term (reference) 2E001 DA01 DC02 DH21 FA03 FA51 GA76 GA82 HA07 HE01 LA03 LA04 LA09 LA16 MA04 MA11 MA17

Claims (5)

[Claims] 1. A joint at a joint where a small joint having a small gap between ALC wall panels of about 5 mm to 25 mm and a small joint having a small gap between ALC wall panels of about 0.5 mm to 3 mm intersects. At least one surface of a fixed elastic sealing material made of a foam having closed cells therein is attached to the fore face of the joint, and at least one face of an elastic tape is provided on the fore face of the joint. A joint structure of the ALC wall panel, wherein the fixed elastic sealing material is applied without being divided at a joint of the large joint and the small joint. 2. The joint structure of an ALC wall panel according to claim 1, wherein the elastic tape has butyl rubber as a main component and has an adhesive property. 3. The elastic tape is extended to be longer than the small joint length, and the extension is bent along the large joint at a joint intersection of the large joint and the small joint. The method according to claim 1 or 2, wherein
The joint structure at the joint intersection of the ALC wall panel according to 1. 4. The joint at the joint of the ALC wall panel according to claim 3, wherein an elastic tape of the same material as the elastic tape is stuck on a bent corner of the elastic tape extension. Construction. 5. An irregular-shaped member is provided in a thickness direction of the ALC wall panel at a portion where the fixed-shaped elastic sealing material and the elastic tape are joined to each other.
The joint structure at the joint intersection of the ALC wall panel according to any one of the above.