JP3619776B2 - Insulating concrete product manufacturing method and product - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a heat insulating concrete product that constitutes a wall surface, a bottom surface, and the like of a basement, an underground warehouse, and the like, and a manufacturing method thereof.
[0002]
[Prior art]
Conventionally, as a method of attaching a heat insulating material to a concrete product, a method of attaching after the concrete has been cured or a method of spraying a foam has been common.
[0003]
A concrete product manufactured by such a manufacturing method requires a mounting process and a spraying process after the manufacture of the product, which not only requires labor and time for manufacturing, but also creates gaps and spaces at the interface between the heat insulating material and the concrete. It was easy to cause a decrease in the heat insulation effect.
[0004]
For this reason, the low underground temperature of the outer surface of the heat insulating material is transmitted to the gap and space, and promotes the temperature decrease of the concrete wall surface. As a result, there is a problem that the water vapor in the room is cooled along the wall surface to cause condensation.
[0005]
In addition, the gaps and spaces in the boundary part increased in area, increasing the wet surface and humidity in the basement or underground warehouse.
[0006]
[Problems to be solved by the invention]
The present invention provides a heat insulating concrete product in which a boundary is integrated with an outer surface or an inner and outer surface of the concrete product and there is no room for forming a gap or space at the same time as raw concrete is put into the mold when the concrete product is manufactured. An object of the present invention is to obtain and suppress the floating of the assembly basement by the product due to groundwater.
[0007]
[Means for Solving the Problems]
In order to achieve the above-mentioned object, the present invention erected an opposing steel formwork, and made an impervious foam to face one or both of the opposing faces of the formwork. The foam floats in the opposite direction to the upper end of one or both of the molds between the opposing surfaces of the molds or between the inner surfaces of the foams that are in contact with the opposing surfaces of the two molds. The concrete is cured by the pressure due to its weight and the deformation of the foam due to the heat of hydration of the ready-mixed concrete. The outer surface or inner and outer surfaces of a concrete product that is hardened or solidified in close contact is coated with a water-impermeable foam, and the concrete mortar, cement, etc. is irregularly pressed into the boundary surface of the foam. Rarely the interface It was embodied, the concrete product is an inverse gantry unit block and end plate block to form a outward stepped surface on the outer wall surface top, the small outer wall thickness on stepped surfaces, under stepped surface A heat insulating concrete product that has a large outer wall thickness and engages and puts building foundation concrete or heavy concrete on the outward step surface of the basement assembled by the block,
The above-mentioned first structure in which a small groove for engagement or a small recess for engagement is provided in advance on the inner surface of the water-impermeable foam.
1 Insulating concrete product according to the invention,
The heat-insulating concrete product according to the first or second invention, wherein a levitating-stopping wire is connected to the outward step surface of the basement assembled by the block and facing the foundation concrete on which the bottom plate of the unit block is juxtaposed ,
Consists of.
[0008]
DETAILED DESCRIPTION OF THE INVENTION
The steel molds 1 and 1 that oppose each other on the base plate 7 are erected with bolts 8 and are shown at the upper end of one mold 1 in FIGS. A levitation prevention plate 9 is provided at the upper end of the projection in the opposite direction.
[0009]
1 (a) and 1 (b), a plurality of needle-like protrusions 10 project on the opposing surface 1 ′ of one mold 1 in FIG. 1 and on the opposing surfaces 1 ′ and 1 ′ of both molds 1 and 1 in FIG. A heat-insulating material made of a water-impermeable foam 2 is interviewed or stretched from the lower surface of the levitation prevention plate 9 to the upper surface of the base plate 7 on one opposing surface 1 ′ or both opposing surfaces 1 ′, 1 ′, and The needle-like protrusion 10 is inserted into the outer surface 2 ″ of the foam 2 to support the foam 2 on the opposing surface 1 ′ or 1 ′, 1 ′ while preventing the foam 2 from floating.
[0010]
In this state, the space between the inner surface 2 ′ of one foam 2 and the opposing surface 1 ′ of the other mold 1 or the opposing surfaces 1 ′, 1 ′ of both the molds 1, 1 is in surface contact or tension. Raw concrete is thrown into or poured into the space between the inner surfaces 2 ′ and 2 ′ of the foams 2 and 2.
[0011]
Since the ready-mixed concrete poured or poured has a high fluidity, its own weight is not only perpendicular to the upper surface of the base plate 7, but also exerts a component force on the opposing surface 1 'or the inner surface 2' in a direction perpendicular to the surface, thereby impervious to water The compressive foam 2 is compressed in the horizontal direction, the cement mortar irregularly enters the inner surface 2 'of the foam 2 irregularly (for example, Fig. 2 (b)), and the aging reaction of the ready-mixed concrete over time Heat (55 to 80 ° C.) causes the foam 2 to expand. And the said uneven | corrugated approach stress of this uneven | corrugated inner surface 2 'is canceled by the said reaction heat, an approach pressure and uneven | corrugated deformation | transformation are stabilized, the uneven | corrugated boundary surface 3 is combined, and countless small aggregate 5' in the mortar 5 is combined. Further, since the state where the cement 6 enters the inner surface 2 ′ is maintained, the boundary surface 3 is not separated, and the cured concrete and the foam are integrated at the boundary surface 3.
[0012]
After curing, the bolts 8 are removed, the molds 1 and 1 are separated from the base plate 7 and removed, and thus the bottom plate 4 'and the side walls 4 ", as shown in FIGS. A heat-insulating inverted portal unit block (concrete product 4), a heat-insulating end plate block 4a, or the like in an assembly basement made of 4 "can be formed in one shot. An outward stepped surface 4b is formed at the same level position on the outer wall surface of the inverted portal unit block 4 and the end plate block 4a, and the outer wall thickness on the stepped surface 4b is reduced to a smaller thickness on the outer wall below the stepped surface 4b. A plurality of the unit blocks 4 are juxtaposed on the I beams 12 and 12 partially embedded in the foundation concrete 11, and both ends of the juxtaposed unit blocks 4 are closed by the end plate blocks 4a. The bottom plate 4 ′ of the unit block 4 supported by the I beams 12 and 12 partially removes the foam 2 on the lower surface thereof, and directly supports the bottom plate 4 ′ to the I beams 12 and 12. An anchor bolt 13 provided with an upper end anchor bolt 13 'or an anchor hole for the levitating stop wire 13 in the underground warehouse or basement 4c on the outward step surface 4b of the block 4 or 4a, and the lower end of the wire 13 provided in the foundation concrete 11 is provided. Connect to (Figure 8).
[0013]
Further, as shown in FIG. 11 (a), the building foundation concrete 14 can be engaged and placed on the outward step surface 4b of the basement 4c to stop the basement 4c from rising, and as shown in FIG. By engaging and placing heavy concrete 15 on the step surface 4b, the basement 4c can be prevented from rising due to its weight. The levitation of the basement 4c is due to the rise of the groundwater level 16 and the buoyancy. The buoyancy can be suppressed by the wire 13, the building foundation concrete 14 and / or the heavy concrete 15.
[0014]
The impermeable foam 2 is a closed-cell foamed synthetic resin, for example, a styrofoam plate is used, or the impermeable water is formed on the outer surface of an inorganic water-permeable heat-insulated foam such as a calcium carbonate foam heat insulating plate on the inner surface 2 'side. Adhesive polystyrene sheet can be used as a composite heat insulating material, and rubber or synthetic resin elastic film is bonded to the outer surface (form frame side) of the inorganic water-permeable foam, and this is used as a water-impermeable foam. Can be used. In this case, a small hemispherical tip is used instead of the needle-like projection 10.
[0015]
When the bottom plate 4 ′ shown in FIG. 6 is manufactured, the lower surface steel mold 1 is supported on the base plate 7, and the upper surface steel mold 1 of the bottom plate 4 ′ is held above the bottom plate 4 ′. If the said water-impermeable foam 2 is interviewed between the lower surface steel molds 1, 1, and ready-mixed concrete is poured or poured between the upper surface of the foam 2 and the lower surface of the upper surface steel mold 1. Good.
[0016]
The foam 2 on the steel mold 1 for the lower surface is in contact with the lower surface 2a of the foams 2 and 2 on the side walls 4 "and 4" by the total weight of the concrete on the side walls 4 "and 4" and the bottom plate 4 '. The height t of the upper surface of both ends of the foam 2 of the bottom plate 4 ′ is higher than the thickness (height t ′) of the foam 2 in contact with the lower surface of the bottom plate 4 ′. That is, due to the compression by the total weight, the thickness (height t ′) of the lower surface portion of the bottom plate 4 ′ is formed low.
[0017]
Further, as shown in FIGS. 7 (a), (b), (c), and (d), a horizontal engaging groove or engaging small recess 2b is formed in advance on the inner surface 2 'of the water-impermeable foam 2. It is possible to improve the adhesion or engagement force between the inner surface 2 ′ of the foam 2 and the concrete by allowing the ready-mixed concrete to enter the small concave groove or the small concave portion 2 b. The engaging small recesses 2b may be a plurality of small-diameter arc-shaped recesses arranged in an orderly manner.
[0018]
Therefore, a concrete product 4 composed of both side walls 4 ", 4" and a bottom plate 4 'is buried in the ground, and a low underground temperature in contact with the outer surface 2 "of the foam 2, the side walls 4", 4 "and the bottom plate. When there is a difference in the room temperature inside 4 ', the side walls 4 "and 4" and the bottom plate 4' concrete conduct at room temperature, but the outer surface of the concrete and the underground temperature are grounded because the foam 2 is interposed between them. There is no possibility that the intermediate temperature is blocked by the foam 2 and conducted to the concrete.
[0019]
Moreover, even if the underground warehouse or the basement 4c by the combination of the unit block 4 and the end plate block 4a receives buoyancy due to the groundwater, it is suppressed by the wire 13, the building foundation concrete 14, and the heavy concrete 15.
[0020]
7 (b) and (d), 10 'in FIG. 7 is a mounting bolt hole in place of the needle-like protrusion 10, 17 in FIG. 8 is a pillow concrete of the I beam 12, and 18 in FIG. 11 (b) and (b). Is a reinforcing bar of the foundation concrete 11 or the building foundation concrete 14, 19 is a foundation chestnut that supports the foundation concrete 11 and the pillow concrete 17, 20 in FIG. 10 is a turnbuckle for fastening the wire 13, and 21 in FIG. , 22 is a fixing bolt between the steel bar 21 and the outward stepped surface 4b, 23 is a reinforcing bar of heavy concrete 15, and 24 in FIG. 8 is a building.
[0021]
【The invention's effect】
Since the present invention can closely spreadable without gaps or voids insulation by water-impermeable foam on the outer surface of the concrete product on was due to the aforementioned products, the condensation on the inner wall when externally temperature is low internal There is no possibility that it will occur, and there is an effect that the above-mentioned water-impermeable foam can be rapidly produced by one-bonding to the outer surface or inner / outer surface of the concrete product. In addition, the basement in which the above concrete product is assembled is safe because the floating due to groundwater is suppressed.
[Brief description of the drawings]
FIG. 1 (a) is a front view of a base plate and an opposing mold frame according to the present invention.
(B) The figure is a longitudinal front view of a state in which ready-mixed concrete is put into the inner surface of the water-impermeable foam and the opposite surface of the other mold.
FIG. 2 (a) is a longitudinal front view of a state in which a bolt is removed and an opposing mold frame is removed.
(B) The figure is an enlarged vertical sectional view of the boundary surface.
FIG. 3 is a longitudinal front view of a state in which ready-mixed concrete is thrown into an opposing surface of an opposing mold.
FIG. 4 is a plan view of a concrete product assembly basement.
FIG. 5 is a front view of FIG. 4;
6 is a longitudinal sectional view taken along line 4A-A in FIG.
FIG. 7 (a) is a longitudinal sectional view showing an engagement state between the inner surface and ready-mixed concrete by forming a recess for engagement on the inner surface of the impermeable foam.
(B) The figure is a front view taken along the line BB in FIG.
(C) FIG. (B) is an enlarged longitudinal sectional view taken along line CC.
(D) The figure is (b) a plan view taken along line DD.
FIG. 8 is a longitudinal sectional view of a building and an assembly basement.
FIG. 9 is an end view of the basement, the foundation concrete, and the levitation stop wire.
10 is a side view of FIG. 9. FIG.
FIG. 11 (a) is a longitudinal sectional view of the basement floating restrained state by building foundation concrete.
(B) The figure is a detailed longitudinal sectional view of the lower part of the basement and the foundation concrete.
FIG. 12 is an enlarged step view of a state in which heavy concrete is engaged and placed on the outward step surface.
[Explanation of symbols]
1 Form 1 'Opposite surface 2 Impervious foam 2' Inner surface 2 "Outer surface 3 Boundary surface 4 Concrete product (reverse portal unit block)
4a End plate block 4b Outward stepped surface 4c Basement 5 Mortar 6 Cement 11 Foundation concrete 13 Lifting prevention wire 14 Building foundation concrete 15 Heavy concrete

Claims (3)

An opposing steel mold is erected, an impermeable foam is interviewed on one or both of the opposing surfaces of the mold, and the inner surface of one of the foams and the opposing surface of the other mold Between the inner surfaces of the foams that are in contact with the opposing surfaces of the two or both molds, the foams are prevented from floating by an anti-floating plate protruding in the opposite direction at the upper ends of one or both of the molds. Concrete is injected, and the interface between the concrete hardened by the pressure due to the weight of the ready-mixed concrete and the foam deformation caused by the heat of hydration of the ready-mixed concrete and the foam is brought into close contact with each other,
The outer surface or inner / outer surface of the hardened or solidified concrete product is coated with a water-impermeable foam, and the mortar / cement of the concrete is irregularly pressed into the boundary surface of the foam so that the boundary surface is integrated. Become
The concrete product is an inverted portal unit block and an end plate block. An outward stepped surface is formed on the upper part of the outer wall surface, the outer wall thickness on the step surface is reduced, and the outer wall thickness below the step surface is increased. Formed into
A heat insulating concrete product in which building foundation concrete or heavy concrete is engaged and placed on the outward step surface of the basement assembled by the block. Water-impermeable foam insulation concrete product according to claim 1, wherein the pre-engagement horizontal small grooves or dimples for engaging provided on the inner surface of. In the outward stepped surface of the basement assembled by the block, heat-insulating concrete products 請 Motomeko 1 or 2, wherein the concatenation of the floating stopper wire toward the underlying concrete juxtaposed the bottom plate of the unit blocks.

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