JP2889296B2 - Method of forming fire-resistant partition panel and fire-resistant partition wall - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a fire-resistant partition panel using a honeycomb core, an expandable fire-resistant paint, and a fire-resistant coating composition having a specific composition, which is lightweight and has excellent strength and sound insulation. Further, the present invention relates to a method for forming a fire-resistant partition wall using the fire-resistant partition panel.

(Prior Art) Conventionally, there are the following types of fire-resistant partition walls of buildings.

(1) Cast-in-place concrete Formwork is made, concrete is poured into it, and it is released after hardening.

(2) Concrete blocks Blocks are stacked via mortar to form walls.

(3) Forming board method ALC board and extruded cement board are brought to the site and fixed.

(4) Lightweight steel frame foundation method (stud method) Lightweight steel called a stud is used as the core material of the wall, and the wall material is attached or painted from both sides.

a) Wet method Put a metal lath on the stud, and apply vermiculite plaster, wet rock wool, mortar, etc. from above.

b) Dry method A plaster board, a calcium silicate board, a flexible board, etc. are stuck on a stud.

(5) Non-stud method The strength of the wall is not relying on the studs, but it is built as a wall by adding strength to the combination of boards and the structure.

(Problems to be solved by the invention) However, cast-in-place concrete requires a formwork and a specialty for assembling the formwork, which is troublesome.

A curing period is required until curing, and it takes a construction period.

When viewed as a wall, the weight per unit area is heavier than other walls, and consideration must be given to the structural design.

Since there is no follow-up property with respect to interlayer displacement, it cannot be applied to flexible structures such as high-rise buildings having a steel structure.

When concrete is poured, the working environment at the site becomes dirty.

There are problems such as.

 In addition, the concrete block is heavy, so the transport work is troublesome.

Since there is no follow-up property with respect to interlayer displacement, it cannot be applied to flexible structures such as high-rise buildings having a steel structure.

Since joints between blocks appear, the surface cannot be decorated unless the surface is finished with mortar or the like.

It is difficult to process wall through-holes.

There are problems such as.

In addition, the molded plate method is lighter in weight and has better heat insulation properties than concrete and blocks, but it is difficult to connect ceilings, walls, doors, windows, through pipes, etc., and to process the inside and outside corners.

Unless the joint treatment is completed, the fire resistance is poor or the sound insulation effect is not sufficient.

There are problems such as.

In addition, the lightweight steel frame foundation method generally finishes as a lightweight wall and follows the interlayer displacement. Furthermore, in the case of the wet method, since an integral wall without joints is formed, there is no problem of deterioration in sound insulation and fire resistance at joints. In addition, it has excellent workability in complicated arrangements and has adaptability. However, in the case of the wet construction method, a curing period is required until hardening, and it takes a construction period.

During the application of wet materials, the working environment on site becomes dirty.

In the case of the dry method, it is difficult to perform processing such as cutting on a complicated connection portion.

Unless the joint treatment is completed, the fire resistance is poor or the sound insulation effect is not sufficient.

Because of the use of studs, two types of construction work are required: hardware work and refractory coating or installation.
Process management becomes complicated.

There are problems such as.

In addition, the non-stud method is a method in which the advantages of the dry method are adopted as the above-mentioned improvement work, and the construction of a lightweight steel frame base (stud) is unnecessary, and a wall is constructed by combining plate materials. However, in this method, the work of laminating thin plates has become mainstream, and improvement in workability has been required.

(Method for Solving the Problems) The present inventors have conducted intensive studies to solve the above problems, and as a result, by combining a honeycomb core, a fireproof paint, and a fireproof coating material, a fireproof material which has not existed in the past has been obtained. Invented a lightweight fire-resistant partition panel excellent in heat resistance and sound insulation, and also invented a method of forming a fire-resistant partition wall integrally formed using the panel.

That is, hydraulic cement, synthetic resin emulsion,
A mixture of aluminum hydroxide powder, carbonate, lightweight aggregate and water is used as a surface material, and a foam core is coated or impregnated with a honeycomb core between which a foam material is coated or impregnated. It is a fire-resistant partition panel formed by curing.

Here, the honeycomb core used in the present invention includes paper, metal (for example, aluminum, stainless steel, titanium, and the like), GR, and the like.
A thin honeycomb sheet made of a thin sheet of P is used as a core material, and its cell structure is a hexagonal shape, a circular shape, a rib shape, etc., for example, in various shapes specified in JIS A 6931. Yes, all materials and shapes that can achieve the object of the present invention are included.

In addition, in order to reinforce the panel, inside the surface material or on the surface layer, metal lath, inorganic or organic net,
Sheets, papers, fibers and the like may be used in combination.

 Hereinafter, the present invention will be described with reference to examples.

(Example 1) Figs. 1 to 5 are perspective views showing a method for manufacturing a fireproof partition panel of the present invention. First, a paper honeycomb core as shown in FIG. 1 was impregnated with a foaming fire-resistant paint specified in JIS K 5661 and dried. Next, a hydraulic cement was placed in a formwork having the size of the panel to be produced as shown in FIG.
A kneaded product obtained by adding a synthetic resin emulsion and water to a powder composed of an aluminum hydroxide powder, a carbonate, and a lightweight aggregate and kneading the mixture was poured. Next, before the poured kneaded material was cured and dried, a metal lath having a size of a mold was placed on the surface thereof. Next, the honeycomb core having the size of the mold was placed on the metal lath and pushed into the kneaded material together with the metal lath as shown in FIG. Further, as shown in FIG. 4, a metal lath was placed on the honeycomb core, and as shown in FIG. 5, the above kneaded material was troweled on the honeycomb core until it reached the honeycomb core.
After this was cured and dried, the mold was removed. FIG. 6 shows a sectional view of the completed fireproof partition panel.

Such a fire-resistant partition panel is lightweight compared to its thickness, and when heated from one side, the surface material prevents the back surface temperature from rising, and when the temperature inside the panel rises, the fire-resistant paint foams further. The rise of the back surface temperature could be delayed.

Example 2 In the manufacture of the fire-resistant partition panel of Example 1, the mold was removed by curing and drying in the state shown in FIG. In such a panel, a kneaded product obtained by kneading a powder composed of hydraulic cement, a synthetic resin emulsion powder, an aluminum hydroxide powder, a carbonate, and a lightweight aggregate with water in a mold is poured, and furthermore, a glass fiber is formed on the surface thereof. Was placed on the net as shown in Fig. 7 and pressed. When the mold was removed after curing and drying, a fire-resistant partition panel similar to that of Example 1 was completed.

(Example 3) As shown in Fig. 8, a pair of facing end portions of the fire-resistant partition panel in Example 1 was manufactured without applying a surface material. Next, such a fire-resistant partition panel was arranged at a place where a partition wall for a building was to be formed as shown in FIG. 9, and the floor and ceiling were attached via a runner. Next, the ends of the metal laths are engaged with each other at the joint of the fireproof partition panel. Further, as shown in FIG. 10, a kneaded material obtained by kneading a powder made of hydraulic cement, a synthetic resin emulsion, aluminum hydroxide powder, carbonate, and lightweight aggregate with water, was coated on the surface and finished to a smooth surface. . After the kneaded material at the seam portion was cured and dried, the entire wall became an integral jointless fireproof partition wall.

(Effect) The fire-resistant partition panel of the present invention has the strength required as a wall while being lightweight, and since the total thickness can be freely set at the time of manufacturing a panel at a factory, the gypsum board or the calcium silicate board is used. As described above, a fireproof partition wall can be formed with only one sheet without taking complicated steps on site such as overlapping and bonding. At this time, a jointless fireproof partition wall can be formed by a simple method utilizing the advantages of both the dry method and the wet method in the conventional method for forming a fireproof partition wall.
In particular, since the joints are completely eliminated, defects such as a decrease in sound insulation performance caused by the joints, which are seen in the conventional molded plate construction method, can be completely prevented. In addition, even if the thickness of the surface material occupies less than the entire thickness of the fire-resistant partition wall due to the honeycomb core impregnated with the hollow fire-retardant paint, the fire-retardant paint foams at the time of heating to maintain the heat insulating property. Has the effect of not deteriorating the fire resistance performance. Furthermore, it is also possible to apply a coating to the surface to impart design properties.

[Brief description of the drawings]

FIG. 1 shows a honeycomb core impregnated with a fire-retardant paint used in the present invention. FIG. 2 shows a state where the kneaded material of the present invention has been poured into a mold. FIG. 3 shows a state where the metal lath and the honeycomb core are pushed into the kneaded material. FIG.
A metal lath has been placed on top of it. Fifth
In the figure, the kneaded material is further ironed from above. FIG. 6 is a sectional view of the fireproof partition panel of the present invention. FIG. 7 shows a state in which the panel cured and dried in the state of FIG. 3 is placed on a kneaded material poured into a mold, placed with a glass fiber net, and pressed into the kneaded material together with the net. FIG. 8 shows a case where the surface material is not applied to a pair of facing ends of the fire-resistant partition panel of the present invention. FIG. 9 shows the fire-resistant partition panel of the present invention arranged at a portion forming a fire-resistant partition wall of a building. FIG. 10 shows a state in which a molded plate formed of the kneaded product of the present invention is inserted into a joint portion of a fire-resistant partition wall formed by arranging the fire-resistant partition panels of the present invention. a: honeycomb core b: mold c: kneaded material d: metal lath e: glass fiber net

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-48-91888 (JP, A) JP-A-50-67835 (JP, A) JP-A-61-77687 (JP, A) (58) Field (Int.Cl. ⁶ , DB name) E04B 1/94

Claims (3)

(57) [Claims] 1. A hydraulic cement, a synthetic resin emulsion,
A kneaded material obtained by adding water to a mixture of aluminum hydroxide powder, carbonate, and lightweight aggregate is used as a surface material, and a honeycomb core coated or impregnated with a foaming fire-resistant paint between the surface materials is used for the kneading. A fire-resistant partition panel characterized by being sandwiched by being pushed into an object. 2. A hydraulic cement, a synthetic resin emulsion,
A kneaded material obtained by adding water to a mixture of aluminum hydroxide powder, carbonate, and lightweight aggregate is used as a surface material, and a honeycomb core coated or impregnated with a foaming fire-resistant paint between the surface materials is used for the kneading. The honeycomb core is sandwiched by being pushed into an article, and the honeycomb partition panel is characterized in that only the portion of the honeycomb core protrudes from an end portion, and the kneaded material is filled and filled in the joint portion. A method for forming a fire-resistant partition wall. 3. A hydraulic cement, a synthetic resin emulsion,
A kneaded product obtained by adding water to a mixture of aluminum hydroxide powder, carbonate, and lightweight aggregate is used as a surface material, and a honeycomb core coated or impregnated with a foaming fire-resistant paint between the surface materials is kneaded. A method for manufacturing a fire-resistant partition panel, characterized in that an object is sandwiched by being pushed in before being cured and dried.