JPS5927042A - Construction of heat insulating wall in concrete building - 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 provides insulation for preventing dew condensation from forming on indoor wall surfaces due to temperature differences in the outside air when constructing the inner and outer walls of concrete buildings such as government offices, corporate banks, hotels, and condominiums. This is a construction method in which a heat insulating piece is glued to one side of the interior base material, then the heat insulating piece is attached to the indoor wall of a concrete building using plaster bond, and a hole is drilled into the interior base material after it has been pasted. A insulation wall construction method for concrete buildings in which a semi-fluid urea resin foam is filled into the gap between the interior base material and the concrete wall through small holes to obtain a heat insulation effect. It is related to.

Conch than before! j -) Indoor 1t11 with 8m outer wall
By attaching various types of insulation materials to the walls, it is possible to block the direct conduction of the temperature difference in the outside air into the building, thereby preventing the formation of condensation on the walls (+1! Condensation occurs not only in the winter when the outside temperature is low, but also in the summer, especially during the rainy season, when hot and humid outdoor air enters the room and can cause condensation on the backs of dressers and other areas. Condensation occurs when it comes into contact with cold wall surfaces such as inside closets, corner areas, basement warehouses, etc.
When condensation forms on the walls, it not only stains the indoor walls, but also accelerates the damage and decay of the walls, and also damages the clothing and food stored indoors, significantly impairing the livability of the room. It is something. For this reason, the conventional method of constructing insulation walls is to correct the unevenness that has occurred on the interior and exterior walls of the interior and exterior walls after the concrete has been poured and hardened, and to smooth the walls by applying a certain thickness of mortar to create a vertical wall surface. Alternatively, after preparing the base by pasting non-woven fabric on the indoor wall surface, install a petrochemical insulation material such as standard urethane foam board or styrene foam board to a certain thickness for the wall. After the entire surface was glued, an interior base material was attached to the surface. According to this method, it is extremely difficult to adhere a solid plate-shaped insulation material to the entire wall surface without any gaps, and there are gaps due to heat shrinkage, especially at the tangents between the wall and the ceiling and at the four corners of the wall. As a result, the insulation performance is significantly reduced, the work procedure is complicated, and the cost is relatively high. Furthermore, since these insulation materials are petrochemical products, they are highly flammable and self-combustible in the event of a fire, and their heat and 8 properties are extremely high, so there is almost no way to extinguish the fire. Another construction method is to raise plaster bonds at regular intervals on the guide side wall surface after the concrete has been poured and hardened, and then glue the interior base material vertically to it to form the wall. However, according to this, there is nitrogen between the concrete outer wall and the interior base layer, so as the air between them changes with the temperature of the outside air, the plaster bond that connects the two The insulation effect is negligible because the parts become cold bridges and cause dew condensation.

Ki P and Akira placed a hole in the joint between the concrete wall and the interior base material for a certain period of time, and during that time, used a small piece of insulation and plaster bond to strongly adhere the two, allowing the bonded part to become a cold bridge. In addition to preventing this with a heat insulating piece, the urea resin foam is injected into the gap between the interior base material and the concrete wall through a small hole drilled in the interior base material by on-site foaming. All gaps are sealed, making it easy to achieve insulation and airtightness. After drying and curing of the foam, the concrete wall, interior base material, and insulation piece form an integral wall to prevent air convection. The urea resin foam has self-extinguishing and flame-retardant properties, and is an excellent heat insulating wall with few smoke-emitting parts and extremely low thermal conductivity.

To explain this using an example, hard adhesion (2) of acrylic non-woven fabric or asbestos cloth etc.
) are pasted onto flat small pieces of insulation pieces (3) at regular intervals and adhered with adhesive, and then apply plaster bond (4) appropriately on the strong adhesive (2) R7II of the insulation pieces (3). After mounding the soil, adhere these gypsum bond (4) surfaces to the interior walls Mi (61) of the interior and exterior walls (6) of the concrete building, and attach the interior base material fi+ to the interior walls (6). Then, apply plaster bond (4) so that it becomes a vertical inner wall surface (7).
), press and adjust the adhesive part appropriately, and attach the plaster bond (4).
When the i1+ on the interior base side is hardened and strongly adhered to the interior base side (1), a suitable number of small circular injection holes (8) are drilled at appropriate locations on the interior base side (1), and semi-fluid water is poured through the injection holes (8). urea resin foam (9) is injected into the gap (1o) created between the interior base material fsl and the indoor wall surface (6) by in-situ foaming, In the figure, till is the injection hose, 02) is the floor, and (13) is the closed pore material.

The present invention is constructed using a construction method such as Narijo, and the insulation piece (3) is made of a material with excellent insulation effect such as a polystyrene board or urethane board of a certain thickness, and one side of the insulation piece is coated with acrylic nonwoven fabric or asbestos. It is a small flat piece to which a strongly bonded feather (2) of cloth or the like is pasted, and the interior base material +11 to which this is glued has a fixed standard such as length, width, and thickness, so the insulation piece (3) is When gluing, it is possible to avoid the trouble of gluing each part separately by gluing it across the joints on the interior base side (1), and the ceiling and floor surfaces that touch the top and bottom of the interior wall surface (6) If the insulation pieces (3) are glued at intervals, □The urea resin foam to be injected between them (
9) is filled without any gaps, resulting in a defect-free heat insulating wall.

Also, the plaster bond (4) raised on the surface of the adhesive (2) is
Even if the interior wall surface (6) to be bonded to this interior wall surface (6) has some irregularities, the interior base material fl is raised by an appropriate amount by pressing adjustment so that it forms a vertical interior wall surface (7). After adhering the interior base material +11 to the entire surface of the indoor wall surface (6) in this way, an appropriate number of holes are drilled at appropriate locations on the interior base material +1+, and a small circular injection hole (8) is inserted at the site. Semi-jlf by foaming
By injecting the dynamic urea resin foam (9), the gap (10) created between the interior lower wall (1) and the interior (111 wall r1+1to+) will be filled without any gaps. After curing, interior base I (1) and ♀ inner 411
Wall mi +61 (!:, The heat insulating heather (3) and the plaster bond (4) contain the urea resin foam (9) and become an integral heat insulating wall. And the inner wall surface (7)" -
After pasting a closed hole material (131) such as cheesecloth or synthetic resin film on the injection hole (8) that appeared in the hole, tie a beautiful table lumber on the inner wall surface (7). The interior of the room is beautified and the insulation wall has an excellent insulation effect.

[Brief explanation of the drawing]

Figure 1 is a slope view showing the construction order of wood h℃ [j], where part A is when the 1lJr thermal piece is bonded, and part B is when stone and K bond are raised on the adhesive surface of the insulation piece. It indicates the time. J Figure 2 is a partially enlarged cross-sectional view just before adhering the interior base material to the indoor wall surface, and Figure 3 is a partially enlarged cross-sectional view showing the state in which the urea resin foam is injected after the interior finishing material has been adhered. FIG. 4 is a partially enlarged sectional view at the time of completion of construction, FIG. 5 is an inner wall surface view after completion of processing, and FIG. 6 is an enlarged slope view of the heat insulating piece. In the diagram, (1)...Interior base material, (2)...
・Strong adhesion phase, (3)...Insulation piece, (4)...
...Gypsum bond, (5) ...Internal and external walls of concrete buildings, +61 ...Indoor fullll
Wall surface, (7)...Inner wall surface, (8)...
Injection hole, (9)...Urea resin foam, (10)
······gap. Patent applicant Teruo Sato 193, $P,,'n Thickness 8 S σ Name Z η

Claims (1)

[Claims] On one side of the interior base material, small flat insulation pieces with a strong adhesive such as acrylic non-woven fabric or mineral cotton cloth are glued at regular intervals with adhesive, and the adhesive side of the insulation piece is After filling an appropriate amount of gypsum bond on top, these gypsum bond surfaces are adhered to the indoor wall surfaces of the interior and exterior walls of the concrete building, and the interior base material is affixed to the indoor wall surface.
0 Press the adhesive part of the plaster bond appropriately so that it becomes a vertical inner wall surface, and align it. Once the plaster bond has hardened and the interior base material is strongly adhered, it will fit in the appropriate place on the interior base material. A suitable number of small circular injection holes are drilled, and semi-fluid urea resin foam is foamed through the injection holes on-site to form interior base materials and indoor spaces (l
A method of constructing insulation walls in concrete buildings by injecting gap force into the gap.