JP2001282250A - Vibration isolating function material made of concrete - Google Patents
Vibration isolating function material made of concreteInfo
- Publication number
- JP2001282250A JP2001282250A JP2000096380A JP2000096380A JP2001282250A JP 2001282250 A JP2001282250 A JP 2001282250A JP 2000096380 A JP2000096380 A JP 2000096380A JP 2000096380 A JP2000096380 A JP 2000096380A JP 2001282250 A JP2001282250 A JP 2001282250A
- Authority
- JP
- Japan
- Prior art keywords
- concrete
- fibers
- weight
- strength
- fiber
- 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.)
- Pending
Links
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
Landscapes
- Curing Cements, Concrete, And Artificial Stone (AREA)
- Details Of Audible-Bandwidth Transducers (AREA)
- Soundproofing, Sound Blocking, And Sound Damping (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、超高強度コンクリ
ート硬化体からなる、計測機器、オーディオ機器などの
ケース、スピーカシステムの筐体、台座などの防振機能
が要求される部材に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a member made of an ultra-high-strength concrete hardened body, such as a case of measuring equipment and audio equipment, a housing of a speaker system, a pedestal, and the like, which are required to have an anti-vibration function.
【０００２】[0002]
【従来の技術】計測機器、オーディオ機器などのケース
などのように、防振機能を必要とする部材の材料とし
て、例えば金属ダイキャスト材を使用すると、剛性の点
で、比較的要求性能を満たすが、振動の減衰特性に劣る
ため、部材の共振による特定周波数の振動を回避するこ
とが難しかった。また同様に、スピーカシステムは、ス
ピーカユニット本体と、それを保持しつつ音響効果を最
大限に引き出すことを目的としたケースから構成されて
いる。一般に、このケースには、木材や金属ダイキャス
ト材が使用されているが、いずれも振動の減衰特性に劣
るため、筐体の共振による特定周波数の振動が起こりや
すく、電気信号を忠実に音声に変換できにくいという問
題があった。特に、低音用スピーカでは、振動体の重量
が大きいため、筐体の共振は抑えにくいという問題があ
った。2. Description of the Related Art When a metal die-cast material is used as a material of a member requiring an anti-vibration function, such as a case of a measuring instrument, an audio instrument, or the like, a relatively required performance is satisfied in terms of rigidity. However, it is difficult to avoid the vibration at a specific frequency due to the resonance of the member due to the poor vibration damping characteristics. Similarly, the speaker system is composed of a speaker unit main body and a case aiming at maximizing an acoustic effect while holding the main body. In general, wood and metal die-cast materials are used in this case, but since both have poor vibration damping characteristics, vibration at a specific frequency due to resonance of the housing is likely to occur, and electrical signals are faithfully converted to audio. There was a problem that conversion was difficult. In particular, the bass speaker has a problem that it is difficult to suppress the resonance of the housing because the vibrator is heavy.
【０００３】[0003]
【発明が解決しようとする課題】本発明は、計測機器、
オーディオ機器、スピーカシステムのケースなどにおい
て、その機能に有害な共振が極めて少ないケースを提供
することにより、これらの機器の動作を安定させること
を解決課題とする。SUMMARY OF THE INVENTION The present invention relates to a measuring instrument,
It is an object of the present invention to stabilize the operation of audio equipment and a speaker system by providing a case in which resonance that is detrimental to its function is extremely small.
【０００４】[0004]
【課題を解決するための手段】かかる課題を解決すべ
く、本研究者らは鋭意研究した結果、少なくとも、セメ
ント、ポゾラン質微粉末、粒径２ｍｍ以下の骨材、水、
及び減水剤を含む配合物の硬化体からなるコンクリート
製防振機能材料は、上記課題を解決しうることを見出
し、本発明を完成した。また、該配合物には、金属繊維
及び／又は有機質繊維を含んでもよく、更に、無機粉
末、及び繊維状粒子又は薄片状粒子を含んでもよい。Means for Solving the Problems In order to solve such problems, the present inventors have conducted intensive studies, and as a result, at least cement, pozzolanic fine powder, aggregate having a particle size of 2 mm or less, water,
The present inventors have found that a concrete vibration-isolating functional material composed of a cured product of a composition containing a water-reducing agent and a water-reducing agent can solve the above problems, and have completed the present invention. In addition, the composition may include metal fibers and / or organic fibers, and may further include inorganic powder and fibrous particles or flaky particles.
【０００５】[0005]
【発明の実施の形態】以下、本発明について詳細に説明
する。本発明において用いられるセメントの種類は限定
されない。普通ポルトランドセメント、早強ポルトラン
ドセメント、中庸熱ポルトランドセメント、低熱ポルト
ランドセメント等の各種ポルトランドセメントや高炉セ
メント、フライアッシュセメント等の混合セメントを使
用することができる。BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, the present invention will be described in detail. The type of cement used in the present invention is not limited. Various portland cements such as ordinary Portland cement, early-strength Portland cement, medium heat Portland cement, low heat Portland cement, and mixed cements such as blast furnace cement and fly ash cement can be used.
【０００６】本発明において、コンクリートの早期強度
を向上しようとする場合は、早強ポルトランドセメント
を使用することが好ましく、コンクリートの流動性を向
上しようとする場合は、中庸熱ポルトランドセメントや
低熱ポルトランドセメントを使用することが好ましい。In the present invention, it is preferable to use an early-strength Portland cement in order to improve the early strength of concrete, and to use a medium-heat Portland cement or a low-heat Portland cement in order to improve the fluidity of concrete. It is preferred to use
【０００７】ポゾラン質微粉末としては、シリカフュー
ム、シリカダスト、フライアッシュ、スラグ、火山灰、
シリカゾル、沈降シリカ等が挙げられる。一般に、シリ
カフュームやシリカダストでは、その平均粒径は、１．
０μｍ以下であり、粉砕等をする必要がないので本発明
のポゾラン質微粉末として好適である。The pozzolanic fine powder includes silica fume, silica dust, fly ash, slag, volcanic ash,
Silica sol, precipitated silica and the like. Generally, in silica fume and silica dust, the average particle size is 1.
Since it is 0 μm or less and it is not necessary to grind, it is suitable as the pozzolanic fine powder of the present invention.
【０００８】ポゾラン質微粉末を配合することにより、
そのマイクロフィラー効果およびセメント分散効果によ
りコンクリートが緻密化し、圧縮強度が向上する。一
方、ポゾラン質微粉末の添加量が多くなると単位水量が
増大するので、ポゾラン質微粉末の添加量はセメント１
００重量部に対して５〜５０重量部が好ましい。By blending pozzolanic fine powder,
Due to the microfiller effect and the cement dispersing effect, the concrete is densified and the compressive strength is improved. On the other hand, when the amount of pozzolanic fine powder added increases, the unit water volume increases.
The amount is preferably 5 to 50 parts by weight based on 00 parts by weight.
【０００９】本発明においては粒径２ｍｍ以下の骨材が
用いられる。ここで、骨材の粒径とは、８５％（重量）
累積粒径である（２ｍｍより大きい骨材が含まれていて
も良い）。骨材の粒径が２ｍｍを超えると、強度が低下
する。なお、コンクリートの分離抵抗性、硬化後の強度
等から、最大粒径が２ｍｍ以下の骨材を用いることが好
ましく、最大粒径が１．５ｍｍ以下の骨材を用いること
がより好ましい。In the present invention, an aggregate having a particle size of 2 mm or less is used. Here, the particle size of the aggregate is 85% (weight).
It is a cumulative particle size (an aggregate larger than 2 mm may be included). If the particle size of the aggregate exceeds 2 mm, the strength decreases. It is preferable to use an aggregate having a maximum particle size of 2 mm or less, more preferably an aggregate having a maximum particle size of 1.5 mm or less, from the viewpoint of the separation resistance of the concrete, the strength after hardening, and the like.
【００１０】骨材としては、川砂、陸砂、海砂、砕砂、
珪砂及びこれらの混合物を使用することができる。骨材
の配合量は、コンクリートの作業性や分離抵抗性、硬化
後の強度やクラックに対する抵抗性等から、セメント１
００重量部に対して５０〜２５０重量部が好ましく、８
０〜１８０重量部がより好ましい。[0010] Aggregates include river sand, land sand, sea sand, crushed sand,
Silica sand and mixtures thereof can be used. The amount of the aggregate is determined based on the workability and separation resistance of the concrete, the strength after hardening and the resistance to cracks, etc.
50 to 250 parts by weight, preferably 8 parts by weight,
0 to 180 parts by weight is more preferred.
【００１１】減水剤としては、リグニン系、ナフタレン
スルホン酸系、メラミン系、ポリカルボン酸系の減水
剤、ＡＥ減水剤、高性能減水剤又は高性能ＡＥ減水剤を
使用することができる。それらの中でも、高性能減水剤
又は高性能ＡＥ減水剤を使用することが好ましい。減水
剤の添加量は、コンクリートの流動性や分離抵抗性、硬
化後の強度、さらにはコスト等から、セメント１００重
量部に対して、固形分換算で、０．５〜４．０重量部が
好ましい。As the water reducing agent, a lignin-based, naphthalenesulfonic acid-based, melamine-based, polycarboxylic acid-based water reducing agent, an AE water reducing agent, a high performance water reducing agent or a high performance AE water reducing agent can be used. Among them, it is preferable to use a high performance water reducing agent or a high performance AE water reducing agent. The amount of the water reducing agent to be added is 0.5 to 4.0 parts by weight in terms of solid content with respect to 100 parts by weight of cement in view of the fluidity and separation resistance of concrete, the strength after hardening, and the cost. preferable.
【００１２】本発明において、水／セメント比は、コン
クリートの流動性や分離抵抗性、硬化体の強度や耐久性
等から、１０〜３０％が好ましく、１５〜２５％がより
好ましい。In the present invention, the water / cement ratio is preferably from 10 to 30%, more preferably from 15 to 25%, from the viewpoint of the fluidity and separation resistance of concrete, the strength and durability of the cured product, and the like.
【００１３】本発明においては、硬化体の曲げ強度を高
める観点から、配合物に金属繊維及び／又は有機質繊維
を含ませることが好ましい。金属繊維としては、鋼繊
維、アモルファス繊維等が挙げられるが、中でも鋼繊維
は強度に優れており、またコストや入手のし易さの点か
らも好ましいものである。金属繊維は、径０．０１〜
１．０ｍｍ、長さ２〜３０ｍｍのものが好ましい。径が
０．０１ｍｍ未満では繊維自身の強度が不足し、張力を
受けた際に切れやすくなる。径が１．０ｍｍを超える
と、同一配合量での本数が少なくなり、コンクリートの
曲げ強度が低下する。長さが３０ｍｍを超えると、混練
の際ファイバーボールが生じやすくなる。長さが２ｍｍ
未満ではマトリックスとの付着力が低下し曲げ強度が低
下する。In the present invention, from the viewpoint of increasing the bending strength of the cured product, it is preferable that the compound contains metal fibers and / or organic fibers. Examples of the metal fiber include a steel fiber and an amorphous fiber. Among them, the steel fiber is excellent in strength, and is preferable from the viewpoint of cost and availability. Metal fibers have a diameter of 0.01 to
Those having a length of 1.0 mm and a length of 2 to 30 mm are preferred. If the diameter is less than 0.01 mm, the strength of the fiber itself is insufficient, and the fiber tends to be cut when subjected to tension. If the diameter exceeds 1.0 mm, the number of pieces with the same blending amount decreases, and the flexural strength of concrete decreases. If the length exceeds 30 mm, fiber balls tend to be formed during kneading. Length 2mm
If it is less than 3, the adhesive strength to the matrix decreases, and the bending strength decreases.
【００１４】金属繊維の配合量は凝結後のコンクリート
体積の４％未満が好ましく、より好ましくは３．５％未
満である。金属繊維の含有量は、流動性と硬化体の曲げ
強度の観点から定められる。一般に、金属繊維の含有量
が多くなると曲げ強度が向上するが、一方、流動性を確
保するために単位水量も増大するので、金属繊維の含有
量は前記の量が好ましい。The amount of the metal fibers is preferably less than 4%, more preferably less than 3.5% of the concrete volume after setting. The content of the metal fiber is determined from the viewpoint of fluidity and bending strength of the cured product. In general, as the content of the metal fiber increases, the bending strength improves, but on the other hand, the unit water amount also increases in order to secure fluidity. Therefore, the content of the metal fiber is preferably the above-mentioned amount.
【００１５】有機質繊維としては、ビニロン繊維、ポリ
プロピレン繊維、ポリエチレン繊維、アラミド繊維、炭
素繊維等が挙げられる。有機質繊維は、径０．０１〜
１．０ｍｍ、長さ２〜３０ｍｍのものが好ましい。有機
質繊維の含有量は、凝結後のコンクリート体積の１０％
未満が好ましく、７％未満がより好ましい。なお、本発
明においては、金属繊維と有機質繊維を併用することは
差し支えない。The organic fibers include vinylon fiber, polypropylene fiber, polyethylene fiber, aramid fiber, carbon fiber and the like. Organic fibers have a diameter of 0.01 to
Those having a length of 1.0 mm and a length of 2 to 30 mm are preferred. Organic fiber content is 10% of concrete volume after setting
Is preferably less than 7%, more preferably less than 7%. In the present invention, it is possible to use metal fibers and organic fibers in combination.
【００１６】本発明においては、硬化体の充填密度を高
める観点から、平均粒径３〜２０μｍ、より好ましくは
平均粒径４〜１０μｍの無機粉末を含ませることが好ま
しい。無機粉末としては、石英粉末、石灰石粉末、Ａｌ
2Ｏ3等の酸化物粉末、ＳｉＣ等の炭化物粉末等、ＳｉＮ
等の窒化物粉末等が挙げられるが、中でも、石英粉末
は、コストや硬化体の品質安定性の点から好ましい。な
お、石英粉末としては、石英や非晶質石英、オパール質
やクリストバライト質のシリカ含有粉末等が挙げられ
る。無機粉末の配合量は、コンクリートの流動性、硬化
体の強度等から、セメント１００重量部に対して５０重
量部以下が好ましく、２０〜３５重量部がより好まし
い。In the present invention, from the viewpoint of increasing the packing density of the cured product, it is preferable to include an inorganic powder having an average particle size of 3 to 20 μm, more preferably 4 to 10 μm. As the inorganic powder, quartz powder, limestone powder, Al
Oxide powder such as 2 O 3 , carbide powder such as SiC, SiN
And the like, and among them, quartz powder is preferable in terms of cost and quality stability of the cured product. Examples of the quartz powder include quartz, amorphous quartz, and opal and cristobalite silica-containing powders. The amount of the inorganic powder is preferably 50 parts by weight or less, more preferably 20 to 35 parts by weight, based on 100 parts by weight of cement, from the viewpoint of the fluidity of the concrete, the strength of the hardened body, and the like.
【００１７】本発明においては、硬化体の靱性を高める
観点から、平均粒度が１ｍｍ以下の繊維状粒子又は薄片
状粒子を含ませることが好ましい。ここで、粒子の粒度
とは、その最大寸法の大きさ（特に、繊維状粒子ではそ
の長さ）である。繊維状粒子としては、ウォラストナイ
ト、ボーキサイト、ムライト等が、薄片状粒子として
は、マイカフレーク、タルクフレーク、バーミキュライ
トフレーク、アルミナフレーク等が挙げられる。繊維状
粒子又は薄片状粒子の配合量は、コンクリートの流動
性、硬化体の強度や靱性等から、セメント１００重量部
に対して３５重量部以下が好ましく、１０〜２５重量部
がより好ましい。なお、繊維状粒子においては、硬化体
の靱性を高める観点から、長さ／直径の比で表される針
状度が３以上のものを用いるのが好ましい。In the present invention, from the viewpoint of increasing the toughness of the cured product, it is preferable to include fibrous particles or flaky particles having an average particle size of 1 mm or less. Here, the particle size of a particle is the size of its maximum dimension (in particular, its length for fibrous particles). Examples of the fibrous particles include wollastonite, bauxite, and mullite, and examples of the flaky particles include mica flake, talc flake, vermiculite flake, and alumina flake. The blending amount of the fibrous particles or flaky particles is preferably 35 parts by weight or less, more preferably 10 to 25 parts by weight, based on 100 parts by weight of cement, from the viewpoint of the fluidity of the concrete, the strength and the toughness of the cured product. From the viewpoint of enhancing the toughness of the cured product, it is preferable to use fibrous particles having a needleiness expressed by a length / diameter ratio of 3 or more.
【００１８】本発明においては、コンクリートの混練方
法は特に限定するものではない。また、混練に用いる装
置も特に限定するものではなく、オムニミキサ、パン型
ミキサ、二軸練りミキサ、傾胴ミキサ等の慣用のミキサ
を使用することができる。In the present invention, the method for kneading concrete is not particularly limited. The apparatus used for kneading is not particularly limited, and a conventional mixer such as an omni mixer, a pan-type mixer, a biaxial kneading mixer, and a tilting mixer can be used.
【００１９】上記混練したコンクリートを成形し、養生
・硬化させることで、本発明の防振機能材料を製造する
ことができる。 また、コンクリートの養生方法も特に
限定するものではなく、常温養生や蒸気養生等を行えば
よい。By shaping, curing and hardening the kneaded concrete, the anti-vibration material of the present invention can be manufactured. Also, the method of curing the concrete is not particularly limited, and may be room temperature curing, steam curing, or the like.
【００２０】なお、本発明のコンクリートは流動性に優
れるので、成形方法は特に限定されず、射出成型、流し
込み成形など慣用の成形方法で行うことができる。Since the concrete of the present invention is excellent in fluidity, the molding method is not particularly limited, and it can be carried out by a conventional molding method such as injection molding or cast molding.
【００２１】[0021]
【実施例】以下、実施例を挙げて本発明を説明する。 （使用材料） １）セメント ；低熱ポルトランドセメント（太平洋セメント社製） ２）ポゾラン質微粉末；シリカフューム（平均粒径０．７μｍ） ３）骨材 ；珪砂４号と珪砂５号の２：１（重量比）混合品 ４）金属繊維 ；鋼繊維（直径：０．２ｍｍ、長さ：１５ｍｍ） 有機質繊維 ；ビニロン繊維（直径：０．６ｍｍ、長さ：１５ｍｍ） ５）高性能ＡＥ減水剤；ポリカルボン酸系高性能ＡＥ減水剤 ６）水 ；水道水 ７）無機粉末 ；石英粉（平均粒径７μｍ） ８）繊維状粒子 ；ウォラストナイト（平均長さ０．３ｍｍ、長さ／直径の 比４）The present invention will be described below with reference to examples. (Materials used) 1) Cement; Low heat Portland cement (manufactured by Taiheiyo Cement Corporation) 2) Pozzolanic fine powder; Silica fume (average particle size 0.7 μm) 3) Aggregate: 2: 1 of silica sand 4 and silica sand 5 Weight ratio) Mixed product 4) Metal fiber; Steel fiber (diameter: 0.2 mm, length: 15 mm) Organic fiber; Vinylon fiber (diameter: 0.6 mm, length: 15 mm) 5) High-performance AE water reducing agent; Poly Carboxylic acid-based high-performance AE water reducing agent 6) Water; tap water 7) Inorganic powder; quartz powder (average particle size 7 μm) 8) Fibrous particles; 4)
【００２２】（試験方法） １）フロー値 下記の実施例に記載した材料を、二軸練りミキサに一括
投入して混練し、混練直後のフロー値を、JIS R5201に
準じ測定した。ただし、１５回の落下運動は行わずに測
定した。(Test method) 1) Flow value The materials described in the following examples were put into a biaxial kneading mixer at once and kneaded, and the flow value immediately after kneading was measured according to JIS R5201. However, the measurement was performed without performing the falling motion 15 times.
【００２３】２）圧縮強度 下記の実施例に記載した材料を、二軸練りミキサに一括
投入して混練し、型枠に打設後、２０℃で４８時間前置
きし、続けて９０℃で４８時間蒸気養生して、直径5c
m、高さ10cmの円筒形供試体を作成した。この供試体
を、JIS A1108に従って耐圧機により圧縮強度を測定し
た。2) Compressive strength The materials described in the following examples were put into a biaxial kneading mixer at a time and kneaded, kneaded, placed in a mold, placed at 20 ° C. for 48 hours, and subsequently placed at 90 ° C. for 48 hours. Time steam curing, diameter 5c
A cylindrical specimen having a height of 10 cm and a height of 10 cm was prepared. The compressive strength of this sample was measured by a pressure machine in accordance with JIS A1108.
【００２４】３）弾性率 上記２）で作成した別の供試体にひずみゲージを張付
け、最大荷重の１／３の荷重点における応力とひずみか
ら弾性率を算出した。3) Elastic Modulus A strain gauge was attached to another specimen prepared in 2) above, and the elastic modulus was calculated from the stress and strain at a load point of 1/3 of the maximum load.
【００２５】４）曲げ強度 下記の実施例に記載した材料を、二軸練りミキサに一括
投入して混練し、型枠に打設後、２０℃で４８時間前置
きし、続けて９０℃で４８時間蒸気養生して、直方体供
試体（4×4×16cm）を作成した。この供試体を用いて、
インストロン型試験機により、JIS R5201に従って曲げ
強度を測定した。4) Bending strength The materials described in the following examples were put into a biaxial kneading mixer at a time and kneaded. The resulting mixture was poured into a mold, placed at 20 ° C. for 48 hours, and then placed at 90 ° C. for 48 hours. A rectangular parallelepiped specimen (4 × 4 × 16 cm) was prepared by steam curing for a time. Using this specimen,
The bending strength was measured by an Instron type testing machine according to JIS R5201.
【００２６】５）減衰能 上記４）で作成した別の直方体供試体（4×4×16cm）に
AEピックアップを固定し、このAEピックアップの波形か
ら、振動の減衰能を調べた。パーチクルボードを基準と
して、これより短時間で振動が減衰したものを○で表
し、該基準よりも長い時間で振動が減衰したものを×で
表した。5) Attenuation Ability to another rectangular parallelepiped specimen (4 × 4 × 16 cm) created in 4) above
The AE pickup was fixed, and the vibration damping ability was examined from the waveform of the AE pickup. With respect to the particle board, the one in which the vibration was attenuated in a shorter time than this was represented by ○, and the one in which the vibration was attenuated in a longer time than this reference was represented by x.
【００２７】６）比圧縮強度、比曲げ強度および比弾性
率 供試体の寸法と質量を測定し、単位容積重量を算出し
た。この単位容積重量で、圧縮強度、曲げ強度および弾
性率を除して、比圧縮強度，比曲げ強度および比弾性率
を求めた。以上、実施例の結果は表１および表２に示し
た。また、表２に記載の比較例の材料については、各物
性を常法により測定し、その結果を表２に示した。6) Specific Compressive Strength, Specific Bending Strength and Specific Elastic Modulus The dimensions and mass of the test specimen were measured to calculate the unit volume weight. The compressive strength, flexural strength, and elastic modulus were divided by the unit weight to obtain specific compressive strength, specific flexural strength, and specific elastic modulus. As described above, the results of the examples are shown in Tables 1 and 2. Further, for the materials of the comparative examples described in Table 2, each physical property was measured by a conventional method, and the results are shown in Table 2.
【００２８】実施例１ （配合条件） 低熱ポルトランドセメント；１００重量部 シリカフューム ；３２．５重量部 骨材 ；１２０重量部 高性能ＡＥ減水剤 ；１重量部（固形分） 水／セメント比 ；２２％ Example 1 (Blending conditions) Low heat Portland cement; 100 parts by weight Silica fume; 32.5 parts by weight Aggregate: 120 parts by weight High-performance AE water reducing agent; 1 part by weight (solid content) Water / cement ratio: 22%
【００２９】実施例２ （配合条件） 低熱ポルトランドセメント；１００重量部 シリカフューム ；３２．５重量部 骨材 ；１２０重量部 高性能ＡＥ減水剤 ；１重量部（固形分） 水／セメント比 ；２２％ 鋼繊維 ；コンクリート中の体積の２％ Example 2 (Blending conditions) Low heat Portland cement; 100 parts by weight Silica fume; 32.5 parts by weight Aggregate: 120 parts by weight High-performance AE water reducing agent; 1 part by weight (solid content) Water / cement ratio: 22% Steel fiber; 2% of the volume in concrete
【００３０】実施例３ （配合条件） 低熱ポルトランドセメント；１００重量部 シリカフューム ；３２．５重量部 骨材 ；１２０重量部 石英粉 ；３０重量部 ウォラストナイト ；２４重量部 高性能ＡＥ減水剤 ；１重量部（固形分） 水／セメント比 ；２２％ ビニロン繊維 ；コンクリート中の体積の４％ Example 3 (Blending conditions) Low heat Portland cement; 100 parts by weight Silica fume; 32.5 parts by weight Aggregate; 120 parts by weight Quartz powder; 30 parts by weight Wollastonite; 24 parts by weight High-performance AE water reducing agent; Parts by weight (solid content) Water / cement ratio: 22% Vinylon fiber; 4% of volume in concrete
【００３１】[0031]
【表１】 [Table 1]
【００３２】[0032]
【表２】 [Table 2]
【００３３】表２の結果から分かるように、比較例に比
べ、全ての実施例は、比圧縮強度、及び比曲げ強度が格
段に高いのみならず、短時間で振動が減衰して減衰能に
も優れている。As can be seen from the results in Table 2, all of the examples have not only a significantly higher specific compression strength and a specific bending strength, but also a shorter damping of the vibrations in a short time than the comparative examples. Is also excellent.
【００３４】[0034]
【発明の効果】本発明に係るコンクリート製防振機能材
料は、計測機器、オーディオ機器、スピーカシステムの
筐体や台座等に使用した場合、強度、剛性、靭性などの
機械的性質に優れるのみならず、適度な内部損失も兼ね
備えているため、これらの機器にとって有害な共振を小
さくでき、機器の動作の安定性が向上する。The concrete anti-vibration material of the present invention has excellent mechanical properties such as strength, stiffness, and toughness when used in a housing or pedestal of a measuring instrument, audio equipment, or speaker system. In addition, since the device also has an appropriate internal loss, resonance harmful to these devices can be reduced, and the operation stability of the devices is improved.
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.7 識別記号 ＦＩ テーマコート゛(参考） Ｃ０４Ｂ 18:14 Ｃ０４Ｂ 20:00 Ｂ 20:00 24:26 Ｅ 24:26 14:48 Ｄ 14:48 16:06 Ｅ 16:06 Ａ Ｂ 14:38 Ａ 14:38 14:06 Ｚ 14:06 14:38 Ｃ 14:38 14:20） Ａ 14:20） Ｇ１０Ｋ 11/16 Ｊ ──────────────────────────────────────────────────の Continued on the front page (51) Int.Cl. 7 Identification symbol FI Theme coat ゛ (Reference) C04B 18:14 C04B 20:00 B 20:00 24:26 E 24:26 14:48 D 14:48 16 : 06 E 16:06 AB 14:38 A 14:38 14:06 Z 14:06 14:38 C 14:38 14:20) A 14:20) G10K 11/16 J
Claims (6)
末、粒径２ｍｍ以下の骨材、水、及び減水剤を含む配合
物の硬化体からなるコンクリート製防振機能材料。1. A concrete vibration damping material comprising at least a hardened product of a compound containing at least cement, fine pozzolanic powder, aggregate having a particle diameter of 2 mm or less, water and a water reducing agent.
維を含む請求項１に記載のコンクリート製防振機能材
料。2. The concrete vibration damping material according to claim 1, wherein the composition contains metal fibers and / or organic fibers.
長さ２〜３０ｍｍの鋼繊維である請求項２に記載のコン
クリート製防振機能材料。3. The metal fiber has a diameter of 0.01 to 1.0 mm,
The concrete anti-vibration material according to claim 2, which is a steel fiber having a length of 2 to 30 mm.
ｍ、長さ２〜３０ｍｍのビニロン繊維、ポリプロピレン
繊維、ポリエチレン繊維、アラミド繊維、炭素繊維から
選ばれる一種以上の繊維である請求項２に記載のコンク
リート製防振機能材料。4. The organic fiber has a diameter of 0.005 to 1.0 m.
The concrete vibration damping material according to claim 2, wherein the material is one or more fibers selected from vinylon fibers, polypropylene fibers, polyethylene fibers, aramid fibers, and carbon fibers having a length of 2 to 30 mm.
粉末を含む請求項１〜４のいずれかに記載のコンクリー
ト製防振機能材料。5. The concrete vibration damping material according to claim 1, wherein the composition contains an inorganic powder having an average particle size of 3 to 20 μm.
粒子又は薄片状粒子を含む請求項１〜５のいずれかに記
載のコンクリート製防振機能材料。6. The concrete vibration damping material according to claim 1, wherein the composition contains fibrous particles or flaky particles having an average particle size of 1 mm or less.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000096380A JP2001282250A (en) | 2000-03-31 | 2000-03-31 | Vibration isolating function material made of concrete |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000096380A JP2001282250A (en) | 2000-03-31 | 2000-03-31 | Vibration isolating function material made of concrete |
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| Publication Number | Publication Date |
|---|---|
| JP2001282250A true JP2001282250A (en) | 2001-10-12 |
Family
ID=18611155
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2000096380A Pending JP2001282250A (en) | 2000-03-31 | 2000-03-31 | Vibration isolating function material made of concrete |
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| JP (1) | JP2001282250A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109133748A (en) * | 2018-09-26 | 2019-01-04 | 大连地拓重工有限公司 | A kind of haydite concrete vibration-isolating platform and preparation method thereof |
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|---|---|---|---|---|
| JPS60239351A (en) * | 1984-05-11 | 1985-11-28 | 電気化学工業株式会社 | Composition for working machine body |
| JPS61201652A (en) * | 1985-03-05 | 1986-09-06 | 住友セメント株式会社 | Baffle for speaker and manufacture |
| JPH01244808A (en) * | 1988-03-28 | 1989-09-29 | Showa Shell Sekiyu Kk | Manufacture of cement molded matter having high strength and precise structure |
| JPH05163050A (en) * | 1991-12-13 | 1993-06-29 | Denki Kagaku Kogyo Kk | Cement admixture and cement composition |
| JPH0744539U (en) * | 1993-01-27 | 1995-11-21 | ジオスター株式会社 | spacer |
| JPH08291423A (en) * | 1995-04-19 | 1996-11-05 | Chisso Corp | Inorganic material filled fiber, its production and concrete molding produced by using the fiber |
| JPH11246255A (en) * | 1997-11-27 | 1999-09-14 | Bouygues Sa | Metallic fiber reinforced concrete, cement matrix and premix thereof |
| JPH11209163A (en) * | 1998-01-26 | 1999-08-03 | Taiheiyo Cement Corp | Cement based hardened body and its production |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109133748A (en) * | 2018-09-26 | 2019-01-04 | 大连地拓重工有限公司 | A kind of haydite concrete vibration-isolating platform and preparation method thereof |
| CN109133748B (en) * | 2018-09-26 | 2021-11-09 | 大连地拓重工有限公司 | Ceramsite concrete vibration isolation platform and preparation method thereof |
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