CN104499591A - Plate - Google Patents
Plate Download PDFInfo
- Publication number
- CN104499591A CN104499591A CN201410795612.4A CN201410795612A CN104499591A CN 104499591 A CN104499591 A CN 104499591A CN 201410795612 A CN201410795612 A CN 201410795612A CN 104499591 A CN104499591 A CN 104499591A
- Authority
- CN
- China
- Prior art keywords
- sound
- plate
- cavity
- sound insulation
- noise
- 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
Abstract
The invention discloses a plate. The plate comprises three layers; a ceramsite bottom layer is arranged on one side of the plate; a cavity is formed in a middle layer of the plate at intervals; micro pores are formed between the cavity and the ceramsite bottom layer; a cement solid surface is arranged on the other side of the plate; and a reinforcing steel bar screen plate is arranged on the bottom layer of the plate. The plate has the advantages that a plate surface is fluffy so that sound wave absorption can be weakened; a composite board has an integrated structure, is mounted integrally, and is convenient to use and not easy to damage; the cavity can be filled with sound-absorption or sound-insulation materials, and a noise reduction effect is improved; and a sound-insulation plate can be made of light materials such as cement, perlite and ceramsite, material sources are wide, the manufacturing cost is low, and the materials and the cost are saved.
Description
Technical field
The present invention relates to a kind of building board, in particular to a kind of compound sheet material with sound insulation and sound absorption function.
Background technology
The noise that the noise that urban road traffic vehicles produces, building operations produce etc. noise pollution brings very large impact to the work of people, life, bring harm even to the health of people, especially viaduct both sides, road both sides for this reason, and for intercepting noise around building site, need to arrange some sheet materials, to reduce traffic or the interference of live to surrounding resident of building noise, in road design construction in recent years, also pressure arranges sheet material.Many alloy sheets, the aluminium sheet encapsulation damping materials of selecting of current sheet material are made, and sound-absorbing, soundproof effect are limited, and cost is higher; This sound barrier lacks effective sound absorption function, and sound-absorbing, soundproof effect are undesirable, and aluminium sheet cost is higher, is corroded and affects the life-span.
Current, noise has become a kind of main environment pollution, and the acoustic environment problem of building is more and more subject to concern and the attention of people.Suitable material is selected to carry out sound-absorbing to building and sound insulation process is one of the most basic the most frequently used technical measures in building noise control engineering.
Owing to being short in understanding to the means of Noise measarement, " sound-absorbing " and " sound insulation ", as diverse concept, has usually been confused.Glass wool, rock mineral wool one class have good sound absorption qualities but the very poor material of sound insulation value is corruptly called " sound insulation materials ", and some are that the abatvoix that raw material is made is named as " sheet material " and sound insulation problem in order to solve building with string in one's early years.In order to reasonable employment material, improve building Noise measarement effect, have " sound-absorbing " and " sound insulation " these two concepts and understand further and clear and definite necessity.
The difference of material sound-absorbing and material sound insulation is, material sound-absorbing is conceived to the size of sound source side reflection of the acoustic energy, and target is that reflection of the acoustic energy is little.Damping material absorbs the decay of incident acoustic energy, generally only has a few tenths of, and therefore, its sound absorbing power and sound-absorption coefficient can represent decimally; Material sound insulation is conceived to the size of the transmission acoustic energy of incident sound source opposite side, and target is that transmission acoustic energy is little.Sound insulation materials can make transmission sound energy attenuation to the 10-3 ~ 10-4 or less of incident acoustic energy, and for convenience of expressing, its sound transmission loss method of measurement of decibel represents.
The difference of this bi-material in material is:
Damping material is very little to the reflection of incident acoustic energy, this means that acoustic energy easily enters and through this material; The material of this material should be porous, loose and ventilative, Here it is typical porosity damping material, in technique normally with threadiness, graininess or expanded material to form cellular structure; Architectural feature is: have in material a large amount of, interpenetrate, from table to inner micropore, also namely there is certain gas permeability.When sound wave incident is to porous material surface, cause the air vibration in micropore, due to viscous resistance and the conduction of heat of frictional resistance and air, quite a few acoustic energy is converted into heat energy, thus plays sound absorption.
Sound insulation materials to weakening transmission acoustic energy, the propagation of block sound, just can not as damping material porous, loose, ventilative, its material should be heavy and closely knit on the contrary, as class materials such as steel plate, stereotype, brick walls.The requirement of sound insulation materials material is closely knit imporosity or gap; There is larger weight.Because this kind of sound insulation materials is closely knit, be difficult to absorb and reflect through acoustic energy energy strong, so its sound absorption qualities is poor.
Can find out, it is more much higher than adopting the noise reduction of damping material to utilize the effect of sound insulation materials or sound insulating construction noise insulation.This illustrates, when the noise source in a room can be separated, first should adopt soundproof measures; Just sound-absorbing measure is adopted when sound source cannot separate and need to reduce room noise.
Damping material, as being used alone, can absorb and reduce the noise in room, sound source place, but effectively can not completely cut off the noise from the external world.When damping material and sound insulation materials combinationally use, or using the part of damping material as sound insulating construction, its favourable result, generally all shows as the raising of sound-insulating structure sound transmission loss.
In order to reasonably the selection of material, improve the effect of building sound-absorbing and sound insulation process, first sound-absorbing, sound insulation, damping material, sound insulation materials difference being come, should be basic problem primary in building Noise measarement.
Summary of the invention
The object of the invention is to overcome the functional defect that above-mentioned sheet material only emphasizes separately sound insulation or attraction, provide a kind of have simultaneously sound insulation and suction function, excellent noise reduction effect, the sheet material that cost is low.
For realizing described object, the solution of the present invention is: described sheet material comprises three layers:
Side is haydite layer bottom;
Be interval with cavity in intermediate layer, between cavity and haydite layer bottom, be provided with micropore;
Opposite side is solid of cement, and plate body bottom is provided with stiffener web plate;
Further, in the cavity of sheet material, be filled with damping material, comprise the one in glass wool, the cotton Sound-proof material of polyester fiber, centrifugally glass-wool, rock wool, mineral wool, string or its mixture;
Further, in the cavity of sheet material, be filled with sound insulation materials, comprise the one in steel plate, stereotype, brick wall or its combined material.
Sheet material of the present invention can by cement, and the light material such as perlite, haydite is made, cheap, and material source is extensive.
There are some fundamental characteristics and the rule of wallboard sound insulation at present both at home and abroad:
1. sound transmission loss changes with the difference of material; The sound transmission loss of the even closely knit wallboard of individual layer obeys " the sound deadening qualities law " of building acoustics, namely sound transmission loss is directly proportional to the weight of component unit area, surface density often doubles, sound transmission loss approximately improves 4 ~ 5dB. sound wave when being projeced into wallboard, heavy wall than light wall not easily excited vibrational, low frequency excited vibrational easier than high frequency, therefore, heavy wall is better than light wall sound insulation, and the sound insulation of high-frequency ratio low frequency is good.
The surface density of light partition wall is restricted, for improving their sound transmission loss, and application bilayer or MULTILAYER COMPOSITE structure.
2. the setting of air layer; Employing double wall constructs, and between two-layer wall, stay certain air layer gap, due to the elastic layer effect of air layer, the sound transmission loss of total body of wall can be made to exceed mass law.
3. the application of damping material; Damping material is placed in the air layer of double wall, the sound transmission loss of double wall will be improved further. and the thickness of damping material is larger, the sound absorption qualities of damping material better, the raising of sound transmission loss is also just remarkable., damping material is placed in double wall air layer, for lightweight double wall, its effect is than more remarkable in the double wall of heavy.
4. should note the appearance of overhead speaker; If being rigidly connected of solid should be avoided between the air layer of double wall as far as possible--overhead speaker. there is overhead speaker to exist, by destroying the elastic layer effect of air layer, sound transmission loss being declined; The hollow parts of hollowcore slab partition wall or building-block partition wall, although can wall weight be alleviated, but unfavorable to sound insulation. to the building unit of hollowcore slab, building-block and so on and the cavity wall etc. of building by laying bricks or stones, its internal cavity can not think it is the air layer that can play deadening by mistake. because the surrounding of these cavitys is the rigidly connected overhead speakers of a hundred per cent, do not play the elastic reaction of air layer completely. with the hollowcore slab of material compared with solid slab, when surface density is identical, the former sound transmission loss by lower than or be approximately equal to the sound transmission loss of the latter.
5. floated coat can increase sound transmission loss; There is great adverse effect in hole and gap to sound insulation, and hole trickle on body of wall, gap can make high frequency sound insulation decline, and along with the increasing in hole or gap, high frequency sound transmission loss declines gradually, and impact in, low frequency expansion; The hollow block wall of some lightweight aggregates, owing to there is a large amount of mutually through aperture and finedraw in block material, must carry out at surface of wall process of plastering after concrete block masonry, otherwise sound transmission loss is very low, such as, the body of wall of the thick haydite hollow blocks built of certain 190mm, time not plastering in surface, sound transmission loss is lower than 20dB, after the thickness of floated coat is increased to 30mm, the sound transmission loss of body of wall reaches 50dB.
6. the plate of unlike material can avoid " coincideing " phenomenon; Wallboard by sound wave excite carry out flexural vibrations time, coincidence effect can be there is in certain frequency range, forming sound insulation low ebb. coincidence frequency is not only relevant with surface density with wallboard rigidity, and increase with thickness of slab, frequency moves down, the wallboard on double-layer plate composite wall two sides, select the plate of two kinds of different-thickness or unlike material, can prevent two plates from Anastomosis Phenomena occurring simultaneously, the identical paddy of two panels be staggered mutually, thus improves the sound insulation value of body of wall.
Sound-absorbing, to same space, changes the characteristic of room sound field.The Main Function of sound-absorbing is the reverberation sound in absorption chamber, inoperative to direct sound, and that is sound-absorbing can improve tonequality, but bad to noise reduction capability effect; And damping material is that sound insulation is then based on compact substance with the material of porous, evacuation;
Sound insulation, relative two spaces, the Main Function of sound insulation cuts off sound exactly from a space to another space, prevents the interference of noise.The specific requirement of sound insulation materials material is: closely knit imporosity, have larger weight.
But when carrying out noise reduction process be all generally inhale, sound insulation combines and administers, namely sound insulation is used to cut off external noise and room noise passes in outside, reconcile indoor reverberation sound with sound-absorbing again. the space enclosing structure of building as the sound insulation on body of wall, door, window, floor and roof, be directly involved in outdoor traffic, construction and neighbours' domestic noise import the outside propagation effect surrounding environment with the indoor strong noise such as plant produced noise of equipment, machine room and discotheque into.Therefore, building sound insulation materials is that the technology obtaining quiet acoustic environment ensures, indoor low ambient noise is also the primary condition of indoor good tonequality, and sound insulation is exactly reduce the sound pressure level level from sound source to destination, from dynamic role angle, soundproof measures is divided into initiatively and passive two kinds; Even if but normal employing is passive method---the energy ezpenditure that-acoustic energy is converted into another kind of form falls.
Beneficial effect of the present invention is:
1. invention uses sound-absorbing and sound insulation principle simultaneously, and adopt composite construction, soundproof effect is very remarkable;
2. sheet material is structure as a whole, and integral installation is easy to use, not fragile, and interval arranges cavity and both can absorb and abate the noise, and has the advantages such as make composite plate have suitable intensity and quality is light;
3. material source of the present invention is extensive, and cost is low, economizes on the use of funds.
Detailed description of the invention
Specific embodiment below, illustrates the present invention further, and the solution of the present invention is: sheet material comprises three layers:
Side is haydite layer bottom;
Be interval with cavity in intermediate layer, between cavity and pearl rock stratum bottom, be provided with micropore;
Opposite side is solid of cement, and plate body bottom is provided with stiffener web plate;
Further, in the cavity of sheet material, be filled with damping material, comprise the one in glass wool, the cotton Sound-proof material of polyester fiber, centrifugally glass-wool, rock wool, mineral wool, string or its mixture;
Further, in the cavity of sheet material, be filled with sound insulation materials, comprise the one in steel plate, stereotype, brick wall or its composite member.
Sheet material of the present invention can by cement, and the light material such as perlite, haydite is made, cheap, and material source is extensive.
The foregoing is only preferred embodiment of the present invention, be not used for limiting scope of the present invention, all equal changes of doing according to the scope of the invention and modification, all fall into the scope that the present invention is contained.
Claims (3)
1. a sheet material, is characterized in that, comprises three layer construction: side is haydite layer bottom; Be interval with cavity in intermediate layer, between cavity and haydite bottom, be provided with micropore; Opposite side is solid of cement, and plate body bottom is provided with stiffener web plate.
2. sheet material according to claim 1, is filled with the one in glass wool, polyester fiber cotton, Sound-proof material, centrifugally glass-wool, rock wool, mineral wool, string or its mixture in described cavity.
3. sheet material according to claim 1, is filled with the one in steel plate, stereotype, brick wall or its composition in described cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410795612.4A CN104499591A (en) | 2014-12-19 | 2014-12-19 | Plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410795612.4A CN104499591A (en) | 2014-12-19 | 2014-12-19 | Plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104499591A true CN104499591A (en) | 2015-04-08 |
Family
ID=52941032
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410795612.4A Pending CN104499591A (en) | 2014-12-19 | 2014-12-19 | Plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104499591A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105041473A (en) * | 2015-08-21 | 2015-11-11 | 成都博世德能源科技股份有限公司 | Three-grade efficient noise-elimination air filtering system used for combustion gas turbine |
| CN105089810A (en) * | 2015-08-21 | 2015-11-25 | 成都博世德能源科技股份有限公司 | Three-stage efficient silencing air filtering unit for gas turbine |
| CN105089808A (en) * | 2015-08-21 | 2015-11-25 | 成都博世德能源科技股份有限公司 | Air inlet device for high-efficiency noise elimination of combustion gas turbine |
| CN105089803A (en) * | 2015-08-21 | 2015-11-25 | 成都博世德能源科技股份有限公司 | High-efficiency sound-muffling three-level air filtration system |
| CN105089807A (en) * | 2015-08-21 | 2015-11-25 | 成都博世德能源科技股份有限公司 | Efficient silencing air filter device for cyclic utilization of gas turbine |
| CN105114182A (en) * | 2015-08-21 | 2015-12-02 | 成都博世德能源科技股份有限公司 | Efficient energy-saving rotary blade type silencing air filtering device |
| CN106914570A (en) * | 2015-12-28 | 2017-07-04 | 青岛宏达锻压机械有限公司 | Electric screw press inhales noise isolating tone level platform |
| CN112119452A (en) * | 2018-05-16 | 2020-12-22 | 伊戈尔·耶姆里 | Sound-insulating element |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202430849U (en) * | 2011-12-29 | 2012-09-12 | 魏代云 | Sound insulation composite board |
| CN202450678U (en) * | 2011-12-31 | 2012-09-26 | 吴小东 | Sound-proof floor of building |
| CN102926476A (en) * | 2012-11-30 | 2013-02-13 | 王荷琴 | Sound insulation board |
| AU2014100430A4 (en) * | 2014-04-29 | 2014-06-05 | Nester, Valory DR | The improved acoustically resistant composite board |
| CN204023820U (en) * | 2014-08-29 | 2014-12-17 | 四川正升声学科技有限公司 | Lap jointing type sound absorption module |
-
2014
- 2014-12-19 CN CN201410795612.4A patent/CN104499591A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202430849U (en) * | 2011-12-29 | 2012-09-12 | 魏代云 | Sound insulation composite board |
| CN202450678U (en) * | 2011-12-31 | 2012-09-26 | 吴小东 | Sound-proof floor of building |
| CN102926476A (en) * | 2012-11-30 | 2013-02-13 | 王荷琴 | Sound insulation board |
| AU2014100430A4 (en) * | 2014-04-29 | 2014-06-05 | Nester, Valory DR | The improved acoustically resistant composite board |
| CN204023820U (en) * | 2014-08-29 | 2014-12-17 | 四川正升声学科技有限公司 | Lap jointing type sound absorption module |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105041473A (en) * | 2015-08-21 | 2015-11-11 | 成都博世德能源科技股份有限公司 | Three-grade efficient noise-elimination air filtering system used for combustion gas turbine |
| CN105089810A (en) * | 2015-08-21 | 2015-11-25 | 成都博世德能源科技股份有限公司 | Three-stage efficient silencing air filtering unit for gas turbine |
| CN105089808A (en) * | 2015-08-21 | 2015-11-25 | 成都博世德能源科技股份有限公司 | Air inlet device for high-efficiency noise elimination of combustion gas turbine |
| CN105089803A (en) * | 2015-08-21 | 2015-11-25 | 成都博世德能源科技股份有限公司 | High-efficiency sound-muffling three-level air filtration system |
| CN105089807A (en) * | 2015-08-21 | 2015-11-25 | 成都博世德能源科技股份有限公司 | Efficient silencing air filter device for cyclic utilization of gas turbine |
| CN105114182A (en) * | 2015-08-21 | 2015-12-02 | 成都博世德能源科技股份有限公司 | Efficient energy-saving rotary blade type silencing air filtering device |
| CN106914570A (en) * | 2015-12-28 | 2017-07-04 | 青岛宏达锻压机械有限公司 | Electric screw press inhales noise isolating tone level platform |
| CN112119452A (en) * | 2018-05-16 | 2020-12-22 | 伊戈尔·耶姆里 | Sound-insulating element |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102926476A (en) | Sound insulation board | |
| CN104499591A (en) | Plate | |
| US5661273A (en) | Soundproof wall | |
| CN201665927U (en) | Low frequency damping and sound insulation structure | |
| CN105369936A (en) | Metal sheet light partition wall | |
| AU2016378080B2 (en) | Acoustic drywall panel | |
| CN105220785B (en) | Composite heat insulation sound insulation plate | |
| RU2582137C2 (en) | Sound absorbing element | |
| CN108342999A (en) | A kind of environmentally friendly denoising device for overpass | |
| CN206591666U (en) | Absorbing sound and lowering noise partition plate | |
| CN213359020U (en) | Keel and building block partition wall combined sound insulation household wall system | |
| CN204185784U (en) | A kind of speedway sound insulation and noise reduction shade curtain | |
| CN205276552U (en) | Metal sheet light partition wall | |
| CN205116452U (en) | Compound incubation acoustic celotex board | |
| CN202831279U (en) | Lightweight concrete sound insulation plate | |
| Garg et al. | Design considerations of building elements for traffic and aircraft noise abatement | |
| CN204876158U (en) | Damping sound insulation wall body | |
| CN204151703U (en) | A kind of MULTILAYER COMPOSITE precast concrete sound barrier panel | |
| CN204326282U (en) | Super-silent structural system | |
| CN206941890U (en) | A kind of light steel inner wall of new energy-conserving and environment-protective | |
| CN102926475A (en) | Lightweight concrete sound insulation plate | |
| CN107503449A (en) | Light cellular partition board with deadening | |
| CN208502051U (en) | A kind of lightweight Composite sound-proof wall plate | |
| CN219710622U (en) | Ultra-wideband vibration-damping noise-reducing building structure system with mechanical metamaterial and periodic structure | |
| RU2656438C1 (en) | Sound-absorbing structure for manufacturing buildings |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150408 |
|
| WD01 | Invention patent application deemed withdrawn after publication |