JP3359388B2 - Construction method of sound insulation wall - Google Patents
Construction method of sound insulation wallInfo
- Publication number
- JP3359388B2 JP3359388B2 JP19740493A JP19740493A JP3359388B2 JP 3359388 B2 JP3359388 B2 JP 3359388B2 JP 19740493 A JP19740493 A JP 19740493A JP 19740493 A JP19740493 A JP 19740493A JP 3359388 B2 JP3359388 B2 JP 3359388B2
- Authority
- JP
- Japan
- Prior art keywords
- water
- mortar
- weight
- superabsorbent polymer
- parts
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2103/00—Function or property of ingredients for mortars, concrete or artificial stone
- C04B2103/0045—Polymers chosen for their physico-chemical characteristics
- C04B2103/0051—Water-absorbing polymers, hydrophilic polymers
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
- C04B2111/00612—Uses not provided for elsewhere in C04B2111/00 as one or more layers of a layered structure
- C04B2111/0062—Gypsum-paper board like materials
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/52—Sound-insulating materials
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
- Building Environments (AREA)
Description
【０００１】[0001]
【産業上の利用分野】この発明は、モルタル組成物を用
いる遮音壁の施工法に関するものである。BACKGROUND OF THE INVENTION This invention relates to method of applying sound insulating wall using mortar composition.
【０００２】[0002]
【従来の技術】一般に、モルタルは施工現場で水硬性セ
メントおよび砂、砕石等の骨材に水を加えて混練し、下
地張りの上に塗り付けたり、型枠内に流し込んで施工し
養生硬化させる。また、型枠に流し込み施工した場合
は、振動を与えてエア抜きをする必要がある。2. Description of the Related Art In general, mortar is applied to a hydraulic cement and aggregates such as sand and crushed stone at a construction site, kneaded by adding water, applied to a basement, poured into a formwork, cured and cured. Let it. In addition, when casting is performed in a formwork, it is necessary to apply vibration to release air.
【０００３】一方、遮音壁は２枚の石膏ボードを一定間
隔で平行に配置した二重壁や、この二重壁の中間層にロ
ックウール、ガラスウール等の吸音材を充填して遮音性
を高めたものが使用されている。On the other hand, a sound insulating wall is a double wall in which two gypsum boards are arranged in parallel at regular intervals, or a sound absorbing material such as rock wool or glass wool is filled in an intermediate layer of the double wall to improve sound insulating properties. Are used.
【０００４】[0004]
【発明が解決しようとする課題】しかし、従来のモルタ
ルは、水で混練してスラリー状で施工するため、施工現
場を汚す、型枠のわずかな隙間から漏れ出す、型枠に流
し込んだモルタルのエア抜きに手間がかかる等の作業性
に関する問題点があった。However, since the conventional mortar is kneaded with water and applied in a slurry state, the mortar that has been poured into the mold is contaminated at the construction site, leaks from a slight gap in the mold. There are problems with workability, such as taking time and effort to release air.
【０００５】また、石膏ボードの二重壁の中間層に充填
する吸音材は、音の透過損失における質量則に基づき質
量の大きいもの程遮音性能が良く、吸音材にモルタルを
使用すればロックウールやガラスウールよりも遮音性能
が向上することは明白である。しかし、石膏ボードは水
に弱く、モルタルの水分を吸収して膨潤してしまうた
め、吸音材としてモルタルを使用することができなかっ
た。The sound absorbing material to be filled in the intermediate layer of the double wall of the gypsum board has a greater sound insulation performance as the mass is larger based on the mass rule in sound transmission loss. If mortar is used as the sound absorbing material, rock wool is used. It is clear that the sound insulation performance is improved as compared with glass wool. However, the gypsum board is weak to water and absorbs the moisture of the mortar and swells, so that the mortar could not be used as a sound absorbing material.
【０００６】本発明はこのような問題点を解決すること
を目的として、石膏ボードの二重壁の中間層に充填する
吸音材として施工が簡単なモルタル組成物を使用し、遮
音性に優れた遮音壁の施工法を提供しようとするもので
ある。[0006] The present invention aims to solve this problem, the construction as a sound absorbing material filled in the intermediate layer of the double-walled gypsum board using a simple mortar composition, sound insulation It is intended to provide an excellent sound insulation wall construction method.
【０００７】[0007]
【課題を解決するための手段】本発明の遮音壁の施工法
は、前記目的を達成するために、水硬性セメントと、該
水硬性セメント；１００重量部に対して高吸水性ポリマ
ー；１０〜７０重量部とを含有してなるモルタル組成
物、あるいはこの組成にさらに水硬性セメント；１００
重量部に対して５００重量部以下の骨材を含有してなる
モルタル組成物を用い、２枚の石膏ボード（１）（１）
を所定間隔で配置して形成された二重壁間の間隙部に、
前記モルタル組成物を充填し、該組成物に含有される高
吸水性ポリマーから徐徐に放出される水分によって硬化
させることによりモルタル中間層（３）を形成すること
を特徴とするものである。In order to achieve the above object, a method for constructing a sound insulating wall according to the present invention comprises: a hydraulic cement; a hydraulic cement; and 100 parts by weight of a superabsorbent polymer. A mortar composition containing 10 to 70 parts by weight;
Objects further hydraulic cement or the composition; 100
Contains not more than 500 parts by weight of aggregate per part by weight
Two pieces of gypsum board (1) (1) using mortar composition
In the gap between the double walls formed at predetermined intervals,
A mortar intermediate layer (3) is formed by filling the mortar composition and curing it with moisture gradually released from the superabsorbent polymer contained in the mortar composition.
【０００８】本発明における水硬性セメントは、モルタ
ル組成物を硬化させて機械的強度を発現させることを目
的として配合されるものである。水硬性セメントの種類
は特に限定されるものではなく、最も一般的に用いられ
るポルトランドセメントの他、白色セメント、アルミナ
セメント、シリカセメント、高炉セメント、フライアッ
シュセメント、耐硫酸セメント等の従来のモルタル組成
物として使用できるものであれば何でも良い。[0008] The hydraulic cement of the present invention is compounded for the purpose of hardening the mortar composition to develop mechanical strength. The type of hydraulic cement is not particularly limited. In addition to the most commonly used Portland cement, conventional mortar compositions such as white cement, alumina cement, silica cement, blast furnace cement, fly ash cement, sulfuric acid cement, etc. Anything can be used as long as it can be used as an object.
【０００９】また、前記高吸水性ポリマーとは、親水基
を有するポリマーで分子間架橋による三次元網目構造を
なし、水に溶解することなく、網目構造を拡げるように
して自重の数１０〜１０００倍程度の多量の水を吸収し
て保持するとともに、吸水後は浸透圧の変化等により徐
徐に水を放出する性質を有するポリマーである。このよ
うなポリマーとして、デンプン系、セルロース系、その
他多糖類系、蛋白質等の天然ポリマー類や、ポリビニル
系、アクリル系、その他の付加重合体、ポリエーテル
系、縮合系等の合成ポリマー類を挙げることができ、そ
の種類は特に限定されない。しかし、前記水硬性セメン
トが強アルカリ性であるため、ｐＨ１２以上でも十分な
吸水性を発現する必要がある。したがって、前記ポリマ
ーのうちで強アルカリ下で吸水性が低下し十分な水量を
保持できないものについては、多価金属イオンを取り込
み難い解離基で高吸水性ポリマーを構成する等して耐塩
性を向上させたものを使用する。このような高吸水性ポ
リマーは吸水前の乾燥状態で粉末状、バルク状、繊維
状、シート状等の様々な形態のものがあるが、水硬性セ
メントおよび骨材と均一に混合するために粉末状のもの
が良く、多量の水に漬けて十分に吸水させて使用する。
高吸水性ポリマーは吸水によりゲル化して体積が膨脹す
るが、水保持力が良いために、水切りして粒子表面に付
着した水分を除去すると粉体と同様に扱うことができ
る。The superabsorbent polymer is a polymer having a hydrophilic group, forms a three-dimensional network structure by intermolecular cross-linking, and expands the network structure without dissolving in water. It is a polymer that absorbs and retains twice as much water, and releases water gradually after water absorption due to changes in osmotic pressure and the like. Examples of such polymers include natural polymers such as starch, cellulose, and other polysaccharides and proteins, and synthetic polymers such as polyvinyl, acryl, and other addition polymers, polyethers, and condensation polymers. And the type is not particularly limited. However, since the hydraulic cement is strongly alkaline, it is necessary to exhibit sufficient water absorption even at a pH of 12 or more. Therefore, among the above-mentioned polymers, those which cannot maintain a sufficient amount of water due to a decrease in water absorption under a strong alkali, improve salt resistance by forming a super water-absorbing polymer with a dissociating group which is difficult to take in polyvalent metal ions. Use the one you let. Such superabsorbent polymers may be in various forms such as powder, bulk, fibrous, sheet, etc. in a dry state before water absorption.However, in order to uniformly mix with hydraulic cement and aggregate, powder is used. It is good in shape, soak it in a large amount of water and absorb it sufficiently before use.
The superabsorbent polymer gels and expands in volume due to water absorption, but has a good water retention ability, and can be treated in the same manner as a powder if water is removed by removing water adhering to the particle surface.
【００１０】前記高吸水性ポリマーの配合量は、水硬性
セメント１００重量部に対して吸水状態で１０〜７０重
量部、すなわち高吸水性ポリマーの自重および吸収した
水の重量の合計で１０〜７０重量部を配合する。これ
は、高吸水性ポリマーが１０重量部未満ではモルタルを
硬化させる水量が不足して硬化不良部分が多くなり、一
方７０重量部を超えると水量が多すぎて却って硬化を阻
害するためである。好ましい高吸水性ポリマーの配合量
は、吸水状態で水硬性セメント１００重量部に対して１
０〜５０重量部であり、特に３０〜４０重量部の範囲が
好ましい。また、使用する高吸水性ポリマーの種類によ
って吸水量が異なるので、高吸水性ポリマーの自重で配
合量を定めることは困難であるが、コストの点で、高吸
水性ポリマーの配合量はその自重で水硬性セメントの１
０％程度以下にとどめることが望ましい。The amount of the superabsorbent polymer is 10 to 70 parts by weight in a water-absorbing state with respect to 100 parts by weight of the hydraulic cement, that is, 10 to 70 parts in total by the weight of the superabsorbent polymer and the weight of the absorbed water. Mix parts by weight. This is because if the amount of the superabsorbent polymer is less than 10 parts by weight, the amount of water for curing the mortar is insufficient and the poorly cured portion is increased, while if it exceeds 70 parts by weight, the amount of water is too large to inhibit the curing. A preferable amount of the superabsorbent polymer is 1 to 100 parts by weight of the hydraulic cement in a water absorbing state.
The amount is from 0 to 50 parts by weight, particularly preferably from 30 to 40 parts by weight. In addition, since the amount of water absorption differs depending on the type of the superabsorbent polymer used, it is difficult to determine the amount of the superabsorbent polymer by its own weight, but in terms of cost, the amount of the superabsorbent polymer is determined by its own weight. Of hydraulic cement with
It is desirable to keep it at about 0% or less.
【００１１】また、前記高吸水性ポリマーの粒径は吸水
状態で２．５ｍｍ以下のものを使用することが望まし
い。言い換えれば、使用する高吸水性ポリマーの吸水力
を勘案して、吸水後の粒径が２．５ｍｍ以下になるよう
に乾燥状態における粒径を選定することが望ましい。こ
れは、比較的粒径の小さな高吸水性ポリマーを使用する
ことによって、前記水硬性セメントおよび骨材との均一
混合を図るとともに、型枠内または遮音壁の中間層への
充填密度を高めるためである。また、後に詳述するよう
にモルタル硬化時に高吸水性ポリマーから水が放出され
ても吸水時の体積を保っているために硬化後に空間を生
じるが、吸水状態における粒径が大きい程この空間も大
きくなり、その結果、モルタルの強度が低下したり、ま
た遮音壁の吸音材として用いたときは遮音性が低下する
おそれがある。この点からも高吸水性ポリマーは粒径の
小さなものを使用することが望ましい。Preferably, the superabsorbent polymer has a particle size of 2.5 mm or less in a water-absorbing state. In other words, it is desirable to select the particle size in a dry state so that the particle size after water absorption is 2.5 mm or less in consideration of the water absorbing power of the superabsorbent polymer used. This is because the use of the superabsorbent polymer having a relatively small particle size enables uniform mixing with the hydraulic cement and the aggregate, and also increases the filling density of the intermediate layer of the formwork or the sound insulating wall. is there. Also, as will be described in detail later, even when water is released from the superabsorbent polymer during mortar curing, a space is created after curing because the volume at the time of water absorption is maintained. As a result, the strength of the mortar may be reduced, and when used as a sound absorbing material for a sound insulating wall, the sound insulation may be reduced. From this point of view, it is desirable to use a superabsorbent polymer having a small particle size.
【００１２】前記骨材は水硬性セメントおよび高吸水性
ポリマーに任意に配合され、砂、砂利、砕石等の重量骨
材、パーライト、ひる石等の軽量骨材等の従来のモルタ
ル組成物として使用できるものであれば何でも使用でき
る。しかし、骨材を配合する場合でも、水硬性セメント
１００重量部に対して５００重量部を超えて配合すると
硬化が困難になるため、５００重量部以下とする必要が
ある。好ましい骨材の配合量は骨材の比重によって異な
り、例えば砂であれば水硬性セメント１００重量部に対
して５０〜４００重量部の範囲が好ましく、特に１００
〜３００重量部とするのが好ましい。また、軽量のパー
ライトであれば１０〜５０重量部が好ましい。The above-mentioned aggregate is optionally mixed with hydraulic cement and superabsorbent polymer and used as a conventional mortar composition such as heavy aggregate such as sand, gravel and crushed stone, and lightweight aggregate such as pearlite and vermiculite. Anything that can be used can be used. However, even when the aggregate is blended, if it is more than 500 parts by weight with respect to 100 parts by weight of the hydraulic cement, it becomes difficult to harden. The preferred amount of the aggregate depends on the specific gravity of the aggregate. For example, in the case of sand, the amount is preferably in the range of 50 to 400 parts by weight, more preferably 100 to 100 parts by weight of hydraulic cement.
It is preferable that the amount be 300 parts by weight. In the case of a lightweight pearlite, the content is preferably 10 to 50 parts by weight.
【００１３】また、前述されたようなモルタル組成物
に、防カビ剤等を適宜添加することも好ましい。It is also preferable to appropriately add a fungicide or the like to the mortar composition as described above.
【００１４】本発明の遮音壁に使用する石膏ボード
（１）は、通常、壁材として用いるものであれば何でも
使用でき、材質、厚さ等は特に限定されない。また、２
枚の石膏ボード（１）で二重壁を構築する方法も特に限
定されず、従来のようにクリップで２枚の石膏ボード
（１）を留める方法や枠板を用いる２×４工法等を例示
できる。さらに、遮音壁の二重壁間の間隙部すなわちモ
ルタル中間層（３）の厚さも限定されず、一般住宅用、
音楽室用等の用途に応じて適宜設定すれば良い。The gypsum board (1) used for the sound-insulating wall of the present invention can be any material which is usually used as a wall material, and the material, thickness and the like are not particularly limited. Also, 2
The method for constructing the double wall with the two gypsum boards (1) is not particularly limited, and examples thereof include a method of fastening the two gypsum boards (1) with a clip as in the related art and a 2 × 4 construction method using a frame plate. it can. In addition, the thickness of the gap between the double walls of the sound insulation wall, that is, the thickness of the mortar intermediate layer (3) is not limited, and it is used for ordinary houses,
What is necessary is just to set suitably according to the use, such as for a music room.
【００１５】前述のしたようなモルタル組成物の各材料
は、所定配合量を良く攪拌し、型枠内に充填して施工す
る。充填方法は、空隙を作らず高密度に充填でき、しか
も手早く作業できる空気圧送法が好ましい。モルタル組
成物を充填したのちは、高吸水性ポリマーから徐徐に水
分が放出され、この水分によってモルタルが硬化する。
なお、モルタルの養生期間は通常の水で混練したモルタ
ルと同程度の約２日間を要する。[0015] Each material of the mortar composition as described above is well mixed in a predetermined mixing amount, and filled in a mold for construction. As a filling method, a pneumatic feeding method which can be filled at a high density without forming a void and can be operated quickly is preferable. After filling the mortar composition, water is gradually released from the superabsorbent polymer, and the water hardens the mortar.
The curing period of the mortar requires about two days, which is about the same as that of mortar kneaded with ordinary water.
【００１６】また、遮音壁の施工に際しては、前記型枠
を２枚の石膏ボード（１）（１）で構築した二重壁と
し、その間隙部に同様のモルタル組成物を同じ要領で充
填し、硬化させてモルタル中間層（３）を形成すれば良
い。When the sound insulation wall is constructed, the formwork is a double wall constructed of two gypsum boards (1) and (1), and the gap is filled with the same mortar composition in the same manner. The mortar intermediate layer (3) may be formed by curing.
【００１７】[0017]
【作用】本発明に使用する高吸水性ポリマーは多量の水
を吸収しかつ水保持力が良いため、吸水状態のハイドロ
ゲル化したポリマーは粉体と同様に扱うことができ、こ
れを粉体である水硬性セメントおよび骨材に配合して、
粉体状態のままで混合攪拌しモルタル組成物を調製でき
る。また、水硬性セメント；１００重量部に対してこの
ような吸水状態の高吸水性ポリマー１０〜７０重量部を
配合し、あるいはさらに５００重量部以下の骨材を配合
することにより、従来の水で混練したモルタルと同等の
組成となる。The superabsorbent polymer used in the present invention absorbs a large amount of water and has a good water retaining ability, so that a hydrogelated polymer in a water-absorbing state can be treated in the same manner as a powder. Blended with hydraulic cement and aggregate
The mortar composition can be prepared by mixing and stirring in the powder state. Also, by mixing 10 to 70 parts by weight of such a water-absorbing superabsorbent polymer with 100 parts by weight of a hydraulic cement; It has the same composition as the kneaded mortar.
【００１８】前述のような粉体状のモルタル組成物は、
型枠内に充填することにより容易に施工することがで
き、浸透圧により高吸水性ポリマーから徐徐に水分が放
出され、て高吸水性ポリマー粒子に接している部分から
硬化が始まり、放射状に硬化部分が拡がる。放出される
水分は微量ずつであるから、水硬性セメントおよび骨材
の粒子の間を湿気が浸透するように拡がって全体に硬化
が進行する。The powdery mortar composition as described above is
It can be easily installed by filling in the mold, the water is gradually released from the superabsorbent polymer by the osmotic pressure, and curing starts from the part in contact with the superabsorbent polymer particles, and it cures radially The part expands. Since a small amount of water is released, the water spreads between the particles of the hydraulic cement and the aggregate so that moisture penetrates, and the hardening proceeds as a whole.
【００１９】また、遮音壁の施工法においては、２枚の
石膏ボード（１）（１）を所定間隔で配置して形成され
た二重壁間の間隙部に、前述の粉体状のモルタル組成物
を充填し、高吸水性ポリマーに保持されている水分が徐
徐に放出されて硬化が進行し、モルタル中間層（３）が
形成される。このとき、水分の放出は微量ずつであり、
液状の水がモルタル中間層（３）から石膏ボード（１）
（１）に滲み出すようなことはないから、モルタル組成
物に含まれる水分によって石膏ボード（１）（１）が侵
されることがない。このような石膏ボード（１）（１）
の二重壁間にモルタル中間層（３）を形成した遮音壁
は、音響透過損失における質量則により、吸音材として
ロックウールやグラスウールを使用する場合よりも遮音
性に優れる。In the method of constructing a sound insulating wall, the powdery mortar composition described above is placed in a gap between double walls formed by arranging two gypsum boards (1) and (1) at predetermined intervals. The mortar intermediate layer (3) is formed by filling the material and gradually releasing the moisture retained in the superabsorbent polymer to promote curing. At this time, the release of water is very small,
Liquid water from mortar mid layer (3) to gypsum board (1)
Since there is no bleeding into (1), the gypsum boards (1) and (1) are not affected by moisture contained in the mortar composition. Such a gypsum board (1) (1)
The sound insulating wall in which the mortar intermediate layer (3) is formed between the double walls has better sound insulating properties than the case where rock wool or glass wool is used as the sound absorbing material due to the mass rule in sound transmission loss.
【００２０】また、高吸水性ポリマーの周囲は硬化期間
の早期に硬化するため、水分放出によっても高吸水性ポ
リマーの体積収縮は殆どなく、水分が抜けた跡が空間と
なっている。モルタル施工後は、前記空間に水分が可逆
的に吸収−放出されるため、結露を防止できる。Further, since the periphery of the superabsorbent polymer is cured at an early stage of the curing period, the volume of the superabsorbent polymer hardly shrinks due to the release of water, and the traces of the released water form a space. After the mortar is applied, moisture is reversibly absorbed and released into the space, so that dew condensation can be prevented.
【００２１】[0021]
【実施例】次に、本発明のモルタル組成物およびモルタ
ル施工法ならびに遮音壁の施工法の具体的一実施例につ
いて、図面を参照しつつ説明する。Next, a specific example of a mortar composition, a mortar application method and a sound insulation wall application method of the present invention will be described with reference to the drawings.
【００２２】本実施例のモルタル組成物において、水硬
性セメント、骨材および高吸水性ポリマーとして後掲の
表１に示す材料を用いた。なお、高吸水性ポリマーにつ
いては、予め乾燥状態のものを大量の水に３０秒時間浸
漬して平衡状態に達するまで十分に吸水させたのち、水
を切っておいた。In the mortar composition of this example, the materials shown in Table 1 below were used as hydraulic cement, aggregate and superabsorbent polymer. The superabsorbent polymer was previously immersed in a large amount of water for 30 seconds to sufficiently absorb water until an equilibrium state was reached, and then the water was removed.
【００２３】[0023]
【表１】 [Table 1]
【００２４】一方、遮音壁に用いる石膏ボードとして、
縦１ｍ×横１ｍ×厚さ１０ｍｍのものを使用し、図１に
示されているように、２枚の石膏ボード（１）（１）を
木製クリップ（２）を用いて８ｃｍの間隙部を有する二
重壁を製作し、上下および左右側面にそれぞれ型枠を設
けた（図示省略）。さらに、石膏ボード（１）の上端近
くに吸音材を充填するための孔を設けた。On the other hand, as a gypsum board used for a sound insulation wall,
As shown in FIG. 1, two gypsum boards (1) and (1) were used to remove a gap of 8 cm using a wooden clip (2). A double-wall was manufactured, and a mold was provided on each of the upper, lower, left and right side surfaces (not shown). Further, a hole for filling the sound absorbing material was provided near the upper end of the gypsum board (1).
【００２５】次に、前記モルタル材料を表１に示す割合
で配合して攪拌したところ、粉体と全く同じように良好
に攪拌することができ、比重１．０の粉末状態のモルタ
ル組成物を得た。そして、このモルタル組成物を前記石
膏ボード（１）の孔から空気圧送して二重壁の間隙部に
充填した。充填後２日間養生させたところ、モルタル組
成物は完全に硬化してモルタル中間層（３）が形成さ
れ、石膏ボード（１）（１）にも水による膨潤等の異常
は認められなかった。Next, when the mortar material was blended in the ratio shown in Table 1 and stirred, the mortar composition in a powder state having a specific gravity of 1.0 could be stirred just as well as the powder. Obtained. Then, the mortar composition was supplied by air pressure from the hole of the gypsum board (1) to fill the gap between the double walls. After curing for 2 days after filling, the mortar composition was completely cured to form the mortar intermediate layer (3), and no abnormality such as swelling due to water was found on the gypsum boards (1) and (1).
【００２６】また、前記遮音壁の比較例として、同じ二
重壁の間隙部に前記モルタル組成物の代わりにロックウ
ールを４ｋｇ／ｍ3の密度で充填したものと、二重壁の
みで中間層が中空になったものを用意した。As a comparative example of the sound insulating wall, the same double wall is filled with rock wool at a density of 4 kg / m 3 instead of the mortar composition in the gap portion, and the intermediate layer is formed only by the double wall. A hollow one was prepared.
【００２７】次に、これら３種類の遮音壁について、常
法により音響透過損失を測定し、遮音性を評価した。そ
の結果を図２に示す。Next, the sound transmission loss of these three types of sound insulation walls was measured by a conventional method, and the sound insulation was evaluated. The result is shown in FIG.
【００２８】図２の結果から、石膏ボード（１）（１）
の二重壁の間隙部にモルタル組成物を充填することによ
って優れた遮音性が得られることを確認しえた。From the results of FIG. 2, the gypsum board (1) (1)
It was confirmed that excellent sound insulation was obtained by filling the mortar composition into the gap between the double walls.
【００２９】[0029]
【発明の効果】以上のように、本発明の遮音壁の施工方
法に用いるモルタル組成物は、水硬性セメントと、該水
硬性セメント；１００重量部に対して高吸水性ポリマ
ー；１０〜７０重量部を含有してなるものであり、ある
いはこの組成にさらに水硬性セメント；１００重量部に
対して５００重量部以下の骨材を含有してなるものであ
る。そして、前記モルタル組成物を石膏ボードの二重壁
の中間層に充填し、該組成物に含有される高吸水性ポリ
マーから徐徐に放出される水分によって硬化させるもの
であるから、施工時には材料の配合から石膏ボードへの
充填まで粉体のみを処理すれば良い。その結果、従来の
スラリー状のモルタルに比べて、材料の配合、充填、エ
ア抜き等のあらゆる作業が簡単になり、石膏ボードから
の漏れもなくなる。また、施工現場は殆ど汚れず、清掃
作業も極めて簡単になる。As described above, the construction method of the sound insulation wall of the present invention is as described above.
The mortar composition used in the method comprises a hydraulic cement and the hydraulic cement; 100 parts by weight of a superabsorbent polymer; and 10 to 70 parts by weight. Cement: a cement containing not more than 500 parts by weight of aggregate per 100 parts by weight. Then, the mortar composition is applied to a double wall of gypsum board.
Is filled in the intermediate layer of the composition and cured by the water gradually released from the superabsorbent polymer contained in the composition, so that only powder is treated from the compounding of the material to the filling of the gypsum board at the time of construction. Just do it. As a result, as compared with the conventional mortar in a slurry state, all operations such as compounding, filling and bleeding of the material are simplified, and leakage from the gypsum board is eliminated. Further, the construction site is hardly soiled, and the cleaning work is extremely simple.
【００３０】また、前記モルタル組成物中の水分は配合
段階では高吸水性ポリマーに保持されており、充填後に
徐々に放出されて硬化するため、養生中に水分が型枠に
滲み出すようなことがない。したがって、型枠として水
に弱い石膏ボードを使用することも可能であり、従来は
不可能とされていた、石膏ボードの二重壁の中間層に吸
音材として前記モルタル組成物を使用をすることがで
き、遮音性の優れた遮音壁を容易に施工できる。Further, the water in the mortar composition is retained in the superabsorbent polymer during the compounding step, and is gradually released and hardened after filling, so that the water does not seep into the mold during curing. There is no. Therefore, it is also possible to use a gypsum board that is weak to water as a mold, and the use of the mortar composition as a sound absorbing material in the intermediate layer of the double wall of the gypsum board, which was conventionally impossible. This makes it easy to construct sound-insulating walls with excellent sound insulation.
【００３１】さらに、高吸水性ポリマーから水が放出さ
れた跡が空間となるため、施工後はこの空間に水分が可
逆的に吸収−放出されて結露防止効果も得られる。Furthermore, since the trace of water released from the superabsorbent polymer becomes a space, water is reversibly absorbed and released into this space after construction, and an effect of preventing dew condensation can be obtained.
【図１】本発明の実施例にかかる遮音壁の断面図であ
る。FIG. 1 is a sectional view of a sound insulating wall according to an embodiment of the present invention.
【図２】本発明の実施例および比較例の遮音壁の遮音性
を示すグラフである。FIG. 2 is a graph showing the sound insulating properties of the sound insulating walls of Examples and Comparative Examples of the present invention.
１…石膏ボード ３…モルタル中間層 1: Gypsum board 3: Mortar middle layer
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.7 識別記号 ＦＩ Ｃ０４Ｂ 103:32 Ｃ０４Ｂ 111:52 111:52 (58)調査した分野(Int.Cl.7，ＤＢ名) C04B 2/00 - 32/02 C04B 40/00 - 40/06 ──────────────────────────────────────────────────の Continuation of the front page (51) Int.Cl. 7 identification code FI C04B 103: 32 C04B 111: 52 111: 52 (58) Investigated field (Int.Cl. 7 , DB name) C04B 2/00- 32/02 C04B 40/00-40/06
Claims (2)
隔で配置して形成された二重壁間の間隙部に、水硬性セ
メントと、該水硬性セメント；１００重量部に対して高
吸水性ポリマー；１０〜７０重量部とを含有するモルタ
ル組成物を充填し、前記高吸水性ポリマーから徐徐に放
出される水分によって硬化させることによりモルタル中
間層（３）を形成することを特徴とする遮音壁の施工
法。1. A hydraulic cement and a hydraulic cement; 100 parts by weight in a gap between double walls formed by arranging two gypsum boards (1) and (1) at predetermined intervals. Forming a mortar intermediate layer (3) by filling a mortar composition containing the superabsorbent polymer with water and 10 to 70 parts by weight, and curing the mortar composition with moisture gradually released from the superabsorbent polymer. Characteristic sound insulation wall construction method.
隔で配置して形成された二重壁間の間隙部に、水硬性セ
メントと、該水硬性セメント；１００重量部に対して高
吸水性ポリマー；１０〜７０重量部および骨材；５００
重量部以下とを含有するモルタル組成物を充填し、前記
高吸水性ポリマーから徐徐に放出される水分によって硬
化させることによりモルタル中間層（３）を形成するこ
とを特徴とする遮音壁の施工法。2. A hydraulic cement and a hydraulic cement; 100 parts by weight in a gap between double walls formed by arranging two gypsum boards (1) and (1) at predetermined intervals. Superabsorbent polymer; 10-70 parts by weight and aggregate; 500
Method of applying a sound insulation wall, characterized in that filling the mortar composition containing less parts by weight, to form a mortar intermediate layer (3) by curing the moisture gradually released from the superabsorbent polymer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19740493A JP3359388B2 (en) | 1993-08-09 | 1993-08-09 | Construction method of sound insulation wall |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19740493A JP3359388B2 (en) | 1993-08-09 | 1993-08-09 | Construction method of sound insulation wall |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0781994A JPH0781994A (en) | 1995-03-28 |
| JP3359388B2 true JP3359388B2 (en) | 2002-12-24 |
Family
ID=16373953
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19740493A Expired - Fee Related JP3359388B2 (en) | 1993-08-09 | 1993-08-09 | Construction method of sound insulation wall |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3359388B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2017020167A (en) * | 2015-07-07 | 2017-01-26 | 大成建設株式会社 | Sound absorbing member |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3664826B2 (en) * | 1996-11-08 | 2005-06-29 | 三菱電機株式会社 | Ultrasonic flaw detector |
| CN110616824B (en) * | 2019-10-08 | 2021-02-02 | 台州学院 | Anti-seismic wind-resistant combined wall |
| CN117107974B (en) * | 2023-10-25 | 2024-01-30 | 中国建筑西南设计研究院有限公司 | High-performance floor sound insulation system and construction method thereof |
-
1993
- 1993-08-09 JP JP19740493A patent/JP3359388B2/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2017020167A (en) * | 2015-07-07 | 2017-01-26 | 大成建設株式会社 | Sound absorbing member |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0781994A (en) | 1995-03-28 |
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