JP3617545B2 - Concrete wall board with sound absorbing board - Google Patents

Description

[0001]
[Industrial application fields]
The present invention relates to a concrete wall plate with a sound absorbing plate in which a concrete plate and a porous sound absorbing plate are closely integrated, and a method for producing the same.
[0002]
[Prior art]
Porous sound absorbing plates are installed on the interior and exterior of buildings, ceilings, and balconies that require sound absorption and sound insulation. Conventionally, this sound absorbing plate is generally constructed by attaching a pre-formed porous sound absorbing plate to an already constructed concrete frame using an adhesive, or using an anchor material and mortar, or a metal plate. And a method of fastening using a fastener made of synthetic resin or the like.
[0003]
[Problems to be solved by the invention]
However, in the method of attaching the sound absorbing plate after the construction of the concrete frame as described above, insufficient adhesion due to moisture or dirt of the concrete frame becomes a problem. In addition, if a large amount of water is applied to the sound absorbing plate, it absorbs water and the pore area changes drastically, the sound absorption rate is greatly reduced, and it takes many days to recover its moisture content, and it is also contaminated by white flower. There is also a problem that occurs. Therefore, it is necessary to take various means to prevent the sound absorbing plate from being exposed to water during construction, which makes the construction cumbersome, increases costs, and requires a scaffold for construction. In addition, the problem is that the work is unstable and construction becomes difficult.
[0004]
Therefore, in view of the prefabrication of the building, the present invention is an outer wall plate used in the construction of the wall portion of the building. It is intended to provide a concrete wall plate with a sound absorbing plate and a method for manufacturing the same, which can prevent intrusion into the adhesive surface of the steel, thereby simplifying construction, improving efficiency and reducing costs, and absorbing sound. It is intended to maintain the performance of the plate.
[0005]
[Means for Solving the Problems]
The configuration of the present invention for achieving the above object will be described with reference to the drawings corresponding to the embodiments. The concrete wall plate with a sound absorbing plate according to claim 1 is a lower side portion on the surface side of the concrete plate 1 having a quadrangular shape. In addition, the frame 2 is provided in a projecting manner, and a flange 3 that protrudes longer than the frame 2 is provided on the upper side, and a porous sound absorbing plate 5, 5 is provided between the frame 2 and the flange 3. 1 is provided on the surface facing the frame 2 of the flange edge 3 at a position slightly away from the surface of the sound absorbing plate 1, and a draining groove 6 is provided in the concrete plate 1. The assembled reinforcing bar 4 that reinforces the bond with the concrete of the building is embedded such that the upper half of the reinforcing bar 4 is exposed from the back surface of the concrete plate 1 .
[0006]
The method for producing a concrete wall board with a sound absorbing plate according to claim 2 comprises: a base wall wall 22 movably provided on the top face of the base frame 21 of the required height; There are provided a front mold 24 attached at a required interval, and side molds 25 and 25 attached between the both ends of the base mold 22 and the front mold 24, on the trapezoid 21. The sound absorbing plates 5 and 5 are laid out at a required distance from the base mold 22, the joints between the sound absorbing plates 5 and 5 are filled with the eye material 27, and the upper and lower middles of the front end surface of the trapezoidal frame 21. The drainage ground material 27 is disposed at the position, and water is applied to the sound absorbing plates 5 and 5 by watering. Then, the rebar 4 is disposed on the sound absorbing plates 5 and 5, and the ready-mixed concrete is placed to construct the rebar 4 the lower embedded in the concrete of the, after curing of the pouring concrete, remove the tip mold 24 and side molds 25 and 25, proximal end formwork Extruded 2 into other party, it is characterized in that the demolding the draining groove 6 portion.
[0007]
[Action]
In the wall board with a sound absorbing plate according to the present invention, the rain water that has fallen on the upper part of the concrete board 1 flows down from the front surface of the heel edge 3 among the rain water that has fallen. It also tends to flow toward the plate 5. However, the edge of the flow is cut by the draining groove 6 and falls from the corner of the draining groove 6, and the water is prevented from flowing toward the sound absorbing plate 5.
[0008]
Further, in the manufacturing method, since the concrete is poured after water is sprinkled on the sound absorbing plate 5 and moisture is given to the sound absorbing plate 5, the moisture of the ready concrete may be absorbed by the sound absorbing plate 5. Therefore, the sound-absorbing plate 5 and the concrete are firmly bonded without adding any other attachment means such as an adhesive.
[0009]
【Example】
Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows an embodiment of a wall plate with a sound absorbing plate, and FIG. 2 shows an example of use of the wall plate. Moreover, FIGS. 3-5 shows the Example of the manufacturing method of the same wall board.
[0010]
In FIG. 1, reference numeral 1 denotes a concrete plate having a square or rectangular shape, and a frame 2 having a required width projects outwardly on the lower side of the surface side, which is one side of the concrete plate. Further, on the upper side of the surface side of the concrete plate 1, a flange 3 is provided so as to protrude in the horizontal direction longer than the frame 2. And in this concrete board 1, the braided reinforcing bar 4 which reinforces the coupling | bonding with the concrete of a building is embedded with the half part exposed from the back surface of the concrete board 1. FIG.
[0011]
Further, on the surface side of the concrete plate 1, a large number of porous sound absorbing plates 5, 5 are arranged between the frame 2 and the flange 3 so as to be flush with the protruding end of the frame 2, and the concrete plate 1 is provided on the lower surface of the flange 3 facing the frame 2 at a position slightly away from the surface of the sound-absorbing plate 5 so as to be recessed upward. It has been. Further, a water-repellent agent is applied to the surfaces of the sound absorbing plates 5 and 5.
[0012]
The sound absorbing plate 5 is made of lightweight porous concrete having a bulk specific gravity of 0.2 to 0.4. Preferably, calcium oxalate-based hydrate is used as a base material, and small pores having a diameter of about 0.1 to 1 mm are in communication with each other, and in addition to sound absorption, sound insulation and heat insulation are good. The thickness of the sound absorbing plate is 40 to 100 mm, preferably 50 to 70 mm. The planar shape of the sound-absorbing plate is generally a quadrangle or a rectangle, but it may be a triangle or a polygon, as long as it is a shape suitable for forming a normal joint between each other. Any shape can be used.
[0013]
The use example of the wall plate with the sound absorbing plate will be described. As shown in FIG. 2, the wall plate A of the present invention has its lower end placed on the upper end of another outer wall plate 11 assembled outside the building housing 10. And the upper end portion of the assembled reinforcing bar 4 is connected to the reinforcing bar 13 of the housing 10. Then, the wall concrete 15 is placed on the back side of the concrete plate 1 and the assembled rebar 4 is embedded in the concrete, and the slab concrete 16 of the building is also extended and placed on the upper surface of the flange. The wall plates A of the present invention are installed in the same manner as described above with a plurality of the wall plates A aligned in the horizontal direction.
[0014]
Next, the Example of the manufacturing method of the said wall board A with a sound-absorbing board is described with reference to FIGS. In FIG. 3, reference numeral 20 denotes a mold base, on which a base frame 21 having a required height is placed. On the base frame 21, a low-end base frame 22 that forms the lower end surface of the wall plate A is formed at the base end of the base frame 21 by a hydraulic jack 23 provided on the frame base 21. It is mounted so that it can reciprocate in the direction of the arrow from the base end side to the tip end side. In addition, a high-end mold frame 24 that forms the upper end surface of the wall plate A is detachably attached to the mold table 20 at a predetermined interval ahead of the tip of the table mold frame 21. On the upper side, side molds 25, 25 that form both side surfaces of the wall plate A are detachably attached between both side ends of the proximal mold 22 and the distal mold 24.
[0015]
In forming the wall plate A, a protective sheet 26 (foamed polystyrene, polyurethane, etc.) of the sound absorbing plates 5 and 5 is laid on the trapezoidal frame 21 ahead of the base end mold 22, and the required number of sound absorbing plates is provided thereon. 5 and 5 are laid out at a required distance from the base mold 22, and joints 26 such as kneaded mortar and plaster plaster are buried in the joints between the sound absorbing plates 5 and 5, Prevents leakage of paste when placing ready-mixed concrete later. Next, a drain joint material 27 (foamed synthetic resin material or the like) for forming the drain groove 6 is attached to the upper and lower intermediate portions of the tip surface of the trapezoidal frame 21.
[0016]
After that, water is sprinkled on the sound absorbing plates 5 and 5 arranged. This watering is an important step in the present invention. That is, the sound absorbing plate 5 has a specific gravity of 0.2 to 0.4 and is extremely light and porous. Therefore, when the raw concrete is placed, the sound absorbing plate 5 absorbs moisture of the concrete, and the concrete and the sound absorbing plate 5 Therefore, an appropriate amount of moisture is applied to the sound absorbing plate in advance. The amount of water sprayed is 1,000 to 2,500 g, preferably 1500 to 2000 g, per 1 m ² of the sound absorbing plate.
[0017]
After watering, a plurality of support nails 28 and 28 are erected on the sound absorbing plates 5 and 5, coupled to the upper ends thereof, and the assembled rebar 6 is disposed at a position slightly away from the sound absorbing plates 8 and 8, The ready-mixed concrete is placed in the molds 22, 24, 25, and the exposed portion of the braided reinforcing bar 4 is embedded in the concrete. In addition, the assembled rebar 4 may be arranged using a spacer or the like.
[0018]
After the cast concrete is hardened, as shown in FIG. 4, the distal end mold 24 and the side molds 25, 25 are removed, and subsequently, as shown in FIG. The wall plate A that has been formed by pushing the mold 22 forward is shifted forward. As a result, the drainage ground material 27 forming the drainage groove 6 and the concrete can be separated from each other, and the demolding is completed, and the wall board A is manufactured.
[0019]
【The invention's effect】
As described above, according to the wall plate with a sound absorbing plate according to the present invention, since the draining groove is provided on the lower surface of the ridge protruding from the upper end of the concrete plate, the sound absorbing plate is more than the rim when raining. The water flowing into the water is cut off from the drain groove and falls downward, and enters the bonding surface between the sound-absorbing plate and the concrete plate, so that it is possible to prevent performance degradation due to moisture content of the sound-absorbing plate. In addition, the upper half of the braided bar is exposed and embedded in the concrete plate, so it can be integrated with the building frame, etc., making the construction more economical.
[0020]
In addition, according to the method for producing a concrete wall board with a sound absorbing plate according to the present invention, since the concrete is placed after absorbing moisture by watering the sound absorbing plate, the adhesion between the sound absorbing plate and the concrete plate is integrally strong. Moreover, it is possible to easily form a frame, a flange edge, and a water drain groove of a concrete board, and it is easy and easy to manufacture as a whole, and a concrete wall board with a sound absorbing board can be provided at low cost.
[Brief description of the drawings]
FIG. 1 is a side view showing an embodiment of a wall plate with a sound absorbing plate of the present invention.
FIG. 2 is a side sectional view showing the same use example.
FIG. 3 is a longitudinal sectional view showing a manufacturing process for forming the same frame.
FIG. 4 is a longitudinal sectional view showing a state when placing the concrete.
FIG. 5 is a longitudinal sectional view showing a completed state of the demolding.
[Explanation of symbols]
A Wall plate with sound absorbing plate 1 Concrete plate 2 Frame 3 Hook edge 4 Assembly rebar 5 Sound absorbing plate 6 Drainage groove 10 Housing 11 Outer wall plate 13 Reinforcement 16 Slab concrete 20 Mold base 21 Stand frame 22 Base frame 23 Jack 24 Tip Formwork 25 Side formwork 26 Joint material 27 Drainage joint material 28 Support nail

Claims (2)

A frame is provided on the lower side of the surface of the concrete plate that forms a quadrilateral, and a flange that protrudes longer than the frame is provided on the upper side, and a porous sound absorbing plate is provided between the frame and the flange. Adhering to the concrete plate integrally, the surface facing the frame of the rim is provided with a drainage groove at a position slightly away from the surface of the sound absorbing plate , and in the concrete plate, the concrete of the building A concrete wall board with a sound-absorbing plate, characterized in that a braided reinforcing bar that reinforces the connection is embedded with its upper half exposed from the back surface of the concrete board. A base end mold that is movably provided on the upper surface on the base end side of the trapezoidal frame at a required height, a front end mold that is attached to the front end of the trapezoidal frame at a predetermined interval, a base end mold, and a front end mold A side mold frame that is mounted between both ends of the frame, and a sound absorbing plate is laid out on the above-mentioned trapezoidal frame at a predetermined distance from the base mold frame, and the joint between the sound absorbing plates is a joint material. In addition to filling in, and placing a drain joint material in the middle of the top and bottom of the tip of the trapezoid frame, watering the sound absorbing plate to give moisture, and then placing the braided reinforcing bar on the sound absorbing plate and placing ready-mixed concrete characterized by the lower set of reinforcing bars embedded in the concrete, after hardening of the pouring concrete, remove the tip mold and the side mold, extruded base end formwork to other party, to demolding the draining groove portion The manufacturing method of the concrete wall board with a sound-absorbing board.

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