CN202831279U - Lightweight concrete sound insulation plate - Google Patents
Lightweight concrete sound insulation plate Download PDFInfo
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- CN202831279U CN202831279U CN 201220103929 CN201220103929U CN202831279U CN 202831279 U CN202831279 U CN 202831279U CN 201220103929 CN201220103929 CN 201220103929 CN 201220103929 U CN201220103929 U CN 201220103929U CN 202831279 U CN202831279 U CN 202831279U
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- sound insulation
- lightweight concrete
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Abstract
The utility model discloses a lightweight concrete sound insulation plate which is used for resolving the problem that a common building material can not effectively insulate sound in the living environment. The lightweight concrete sound insulation plate comprises an acoustical plate and a damping material layer, wherein the acoustical plate forms an out-layer structure of the lightweight concrete sound insulation plate through composition, and the damping material layer is arranged between sound insulation plates and used for being connected with the acoustical plate and cutting off transmission of sound waves. The material of the acoustical plate is an autoclaved lightweight concrete (ALC) porous plate with sound absorption of over one time higher than a common autoclaved air-adding plate. The lightweight concrete sound insulation plate has the advantages of being light in weight, strong in strength, good in heat insulation, good in weather resistance, good in freezing resistance, strong in fire resistance, safe, environment-friendly, and the like, and is suitable for being used in various building environments.
Description
Technical field
The utility model belongs to building materials field, is specifically related to a kind of light weight concrete construction sound insulating panel.
Background technology
At present, most probably above defening effect is defective for China's Urban House, most people has the bad experience of house sound insulation, such as: heard the dim sound of speech of next-door neighbor, indistinct telephone bell, upstairs sigh sigh the footsteps, the chatter that rushes gurgle sound, the water tap of toilet of tremnbling when need rest evening, sound insulation detects haltingly.
The residential building such as China's dwelling house, apartment are owing to use Light Wall roof suspended ceiling material for many years, effectively the transaudient sound insulation problem that causes of separating vibration is that the resident complains one of maximum problem to housing quality always, because floor sound insulation is too poor, cause that levels resident family quarrels, gets along well, because party wall sound insulation is poor, cause left and right sides neighbours to be at odds, become social concern.
In fact be not only residential building, the buildings such as office, teaching, hospital, physical culture have corresponding requirements to sound insulation, and the noisy sound of many public aisle, hotel or next room usually affects the rest of passenger in the room.Good sound insulation environment is one of key character of green building.
Usually the internal partition wall that adopts is comprised of light materials such as air-entrained concrete building block, hollow brick, gypsum plank, foam concrete pieces.But this technique exists sound insulation value poor, and product strength is low, and is yielding, and workability is poor, application life is short, easy to crack, suction, etc. defective.
The utility model content
The utility model purpose: the utility model be used for to solve the problem that dwelling environment buildings in general material can not effectively insulate against sound, and the sound insulating panel of a kind of lightweight, insulation, the performance such as heat insulation is provided.
Technical scheme: light weight concrete construction sound insulating panel described in the utility model comprises: abatvoix, and it is by being compounded to form the layer structure of described light weight concrete construction sound insulating panel; The damping material layer, it is arranged between the described sound insulating panel, is used for connecting described abatvoix, and the transmission that intercepts sound wave.Carry out two and above abatvoix compound, connect by the damping material layer between the adjacent abatvoix, reduce the transaudient function of vibrations of sheet material, has simultaneously the effect that sound wave transmits that intercepts, when beginning to shake under the bump of abatvoix at sound wave, macromolecular material between the sheet material stands to overstock stress and shear stress under the effect of shear stress, the macromolecular material in the interlayer changes into thermal energy consumption with the mechanical energy of sound wave and dissipates in this case, thereby improves significantly the sound insulation value of ALC sheet material.
Described abatvoix material is ALC (Autoclaved Lightweight Concrete, autoclaved lightweight aerated concrete) porous sheet material, take silica sand, cement, lime as main material, sheet material inside is strengthened by the reinforcing bar through antirust processing, be aided with blowing agent, modifier, many aerocretes goods that process high temperature, high pressure, stream curing form.Sheet material is compounded to form described light weight concrete construction sound insulating panel through techniques such as cementing, healths, makes the weighting defening effect of sheet material promote 30%-50%.
ALC porous sheet material void content higher (void content 〉=80%), the less (dry volume density≤380kg/m of bulk density
3), thereby it has better sound absorption properties, no matter is can both show fabulous sound-absorbing effect at high frequency region or low frequency range, sound absorption qualities is apparently higher than the fiber-like damping material.
The air hole structure of ALC porous sheet material is in the specific environment of aerated concrete panel slip, carries out the chemical reaction releasing hydrogen gas by foaming agent-aluminium powder in slip and forms.The formation of gas concrete air hole structure roughly will through produce gas, form three states of bubble and slip expansion and form a continuous related and impact that is interweaved, and be conditional unified process.Therefore to select the proportioning of suitable get angry material and slip in the situation of mechanical strength and take special manufacturing process to reduce as far as possible gelling hole and intracrystalline pore guaranteeing.
Just simply increase traditionally the consumption of foaming agent and water for the density that reduces the ALC material, reduce the simultaneously also thereupon decline of intensity of material of input of solids, the reaction of getting angry of aluminium powder is the cement in slip under certain process conditions, and lime generates Ca (HO) with the water effect after meeting water immediately
2, make slip basicity improve rapidly (PH can reach 12 or higher).The hydrogen that reaction produces in minute quantity dissolving and water and reaching capacity rapidly, is released with the form of gas immediately.And this programme is after having passed through a large amount of tests, by shape and the granularity of improving foaming agent, so that in the situation of the consumption that has increased foaming agent and water and minimizing solid material input, make its mechanical strength of density decline of ALC material then can keep level before, the ALC that produces through aforementioned technique has and accounts for the uniform micro of volume more than 87%, and its mesoporous reaches more than 90% at the micropore quantity normal distribution law below the 0.5mm.
In the manufacture process of ALC sheet material, determined in prescription, to add 0.1 ‰～0.8 ‰ SZY-1 (SZY-1: formulated by 1: 3 by modification Alkyl ethoxy carboxylate acid sodium and dimethyl triethoxysilane) of solid content through repetition test screening, its original air hole structure of control is converted into a certain proportion of perforated microstructure by tiny hole-closing structure in ALC gets angry process, makes the ALC goods of making have desired acoustic resistance.Under the certain prerequisite in aperture, the acoustic reactance (acoustic resistance) of the perforated microstructure plate of this moment is irrelevant with original aperture, therefore can control to a certain extent acoustic resistance and the acoustic reactance of abatvoix according to the adding technology of SZY-1, add that original fine holes structure just forms good sound-absorbing structure, the sound absorption qualities of this structure can estimate accurately, therefore can be as required with require quite accurately Design and manufacture.
The selection of damping material layer is through a large amount of screenings, finally selected to mix the two component high-performance damping material layers that form with the damping filler with poly(ether-urethane)/epoxy resin interpenetrating polymer networks (IPN) damping glue through a large amount of experiments, wherein poly(ether-urethane)/epoxy resin interpenetrating polymer networks (IPN) damping glue is light yellow viscous liquid, and the damping filler is brown-black powder.Solidify under the wide temperature zone high damping damping cream material layer normal-temperature reaction that is combined by above-mentioned bi-material, easy to use, nontoxic, fire resistance is good, and strong adhesion does not ftracture, do not come off, can effectively suppress the noise that structure quake causes, have good damping noise reduction, sound insulation, sealing, the combination property such as heat insulation.Extensively be applicable to the irregular position of various substrate surfaces.
The ALC sheet metal thickness that consists of the light weight concrete construction sound insulating panel is 35mm～150mm, and it comprises two kinds of common light silencing plates of specification: ALC and the special plate of ALC light silencing.
The common light silencing plate thickness of ALC is 75mm～150mm, usually adopts the ALC sheet material abatvoix of welded wire fabric arrangement of reinforcement.
It can be used as exterior wall, partition wall, roof panel, also can use separately such as the purposes such as sound insulation, heat insulation, decoration as other.
Frequency band in the 250Hz-500Hz interval, its Reverberation room method sound absorption coefficient are more than 0.8, because thickness is thicker, so it
Sound absorption properties to bass area is better.It is a kind of rigidity abatvoix, so its processing installation dimension is larger, and constructing operation is all more simple and convenient, can decrease cost, and the reduction of erection time.
The special plate thickness of ALC light silencing is 35mm～100mm, is the light silencing plate of iron plate net or steel mesh reinforcement arrangement of reinforcement.Can improve significantly sound-absorbing, the sound insulation value of metope by the abatvoix of this stickup and reinforcement, particularly improve the sound absorption qualities of bass area.This just has better compliance than the abatvoix of fiber-like or with the abatvoix that fiber-like material is strengthened at the requirement of senior room or Precision Machining workshop condition that dustproof, anti-fiber is arranged.
Beneficial effect: the light weight concrete construction sound insulating panel has following characteristic:
(1) unit weight is light: its porosity high (85%～87%), the little (340kg/m of density
3～380kg/m
3), that is to say that weight is lighter.Thereby has a good sound absorption properties.
(2) intensity is high: as damping material, although its intensity≤2N/mm
2, but be higher than the abatvoix of other material (such as gypsum or cellulosic) far away.And the ALC abatvoix also can significantly improve its flexural strength by configuration through the reinforcing bar of antirust processing, deadweight and the larger wind load of plate when bearing large span.Enlarged the scope of application of ALC abatvoix.
Following table is the physical and mechanical property of ALC abatvoix:
| Project | Test result |
| Unit weight | 340～380kg/m 3 |
| Porosity | 85～87％ |
| Coefficient of thermal conductivity | λ 0＝0.09w/(m·k) |
| Compressive strength | 1.5～2N/mm 2 |
| Flexural strength | 0.49N/mm 2 |
| Bending and tensile strength | 0.26N/mm 2 |
(3) thermal insulation is good: the ALC abatvoix has very little coefficient of thermal conductivity simultaneously, has higher heat-insulation warm keeping performance.If utilize like this ALC plate to make inside and outside sound-absorbing wall, the effect that it can play again thermal insulation simultaneously kills two birds with one stone.
(4) good weatherability, frost resistance are good: the same with common ALC plate, the ALC abatvoix is a kind of inorganic silicic acid salt material, it does not have problem of aging in light, heat and air, can be as in long-term the use, not making dust be stained with fiber surface by Electrostatic Absorption the glass wool yet, stop up fiber gap and reduce soundproof effect.
ALC abatvoix surface can also be processed by surface waterproofing sheet material is avoided by the rainwater etch, keeps for a long time its good water resistance and sound absorption properties.
The ALC abatvoix also has good frost resistance simultaneously, and this just makes it also can long-term safety use under northern outdoor environment.
(5) refractoriness is strong: the ALC abatvoix itself is incombustible material, has good refractoriness.Make exterior wall, partition wall with 100 thick ALC abatvoixs and all can reach fire resistance period more than 1 hour, reach the fire-resistant requirement of one-level, and in the situation of high temperature and naked light, do not produce toxic gas.
(6) safety and environmental protection material: the ALC abatvoix does not produce the toxic gas except the same with common ALC plate; all do not contain the harmful material of raphioid fiber class in its raw material and the finished product; but it also self utilizes and the digestion waste material aborning; so; not only do not affect human-body safety, also protected environment.
Description of drawings
Fig. 1 is the structural representation of light weight concrete construction sound insulating panel described in the utility model;
Fig. 2 is the Reverberation room method absorption coefficient curve of the common light silencing plate of ALC;
Fig. 3 is the Reverberation room method absorption coefficient curve of the special plate of ALC light silencing.
The specific embodiment
In order to deepen understanding of the present utility model, the utility model is described in further detail below in conjunction with embodiment and accompanying drawing, and this embodiment only is used for explaining the utility model, does not consist of the restriction to the utility model protection domain.
Light weight concrete construction sound insulating panel as shown in the figure, be that the abatvoix 1 of ALC porous sheet material and the damping material layer 2 between them are composited by two bulk matter, when beginning to shake under the bump of abatvoix at sound wave, macromolecular material between the sheet material stands to overstock stress and shear stress under the effect of shear stress, macromolecular material in the interlayer changes into thermal energy consumption with the mechanical energy of sound wave and dissipates in this case, thereby improves significantly the sound insulation value of ALC sheet material.
In the manufacture process of ALC porous sheet material, by shape and the granularity of improving foaming agent, so that in the situation of the consumption that has increased foaming agent and water and minimizing solid material input, make its mechanical strength of density decline of ALC material then can keep level before, produce ALC porous sheet material through special process and have and account for the uniform micro of volume more than 87%, its mesoporous reaches more than 90% at the micropore quantity normal distribution law below the 0.5mm.
In the manufacture process of ALC sheet material, 0.1 ‰～0.8 ‰ the SZY-1 that has determined to add solid content through repetition test screening in prescription controls its original air hole structure and is converted into a certain proportion of perforated microstructure by tiny hole-closing structure in ALC gets angry process, make the ALC goods of making have desired acoustic resistance.Under the certain prerequisite in aperture, the acoustic reactance (acoustic resistance) of the perforated microstructure plate of this moment is irrelevant with original aperture, therefore can control to a certain extent acoustic resistance and the acoustic reactance of abatvoix according to the adding technology of SZY-1, add that original fine holes structure just forms good sound-absorbing structure, the sound absorption qualities of this structure can estimate accurately, therefore can be as required with require quite accurately Design and manufacture.
The selection of damping material layer is through a large amount of screenings, finally selected to mix the two component high-performance damping material layers that form with the damping filler with poly(ether-urethane)/epoxy resin interpenetrating polymer networks (IPN) damping glue through a large amount of experiments, wherein poly(ether-urethane)/epoxy resin interpenetrating polymer networks (IPN) damping glue is light yellow viscous liquid, and the damping filler is brown-black powder.Solidify under the wide temperature zone high damping damping cream material layer normal-temperature reaction that is combined by above-mentioned bi-material, easy to use, nontoxic, fire resistance is good, strong adhesion, do not ftracture, do not come off, can effectively suppress the noise that structure quake causes, have good damping noise reduction, sound insulation, sealing, the combination property such as heat insulation is applicable to the irregular position of various substrate surfaces.
The light weight concrete construction sound insulating panel comprises two kinds of common light silencing plates of specification: ALC and the special plate of ALC light silencing.
The common light silencing plate thickness of ALC is 75mm～150mm, usually adopts the ALC sheet material abatvoix of welded wire fabric arrangement of reinforcement.It can be used as exterior wall, partition wall, roof panel, also can use separately such as the purposes such as sound insulation, heat insulation, decoration as other.Frequency band in the 250Hz-500Hz interval, its Reverberation room method sound absorption coefficient are more than 0.8, because thickness is thicker, have improved the sound absorption properties of bass area.It is a kind of rigidity abatvoix, so its processing installation dimension is larger, and constructing operation is all more simple and convenient, therefore can decrease cost, and the reduction of erection time.
The special plate thickness of ALC light silencing is 37mm～100mm, is the light silencing plate of iron plate net or steel mesh reinforcement arrangement of reinforcement.Can improve significantly sound-absorbing, the sound insulation value of metope by the abatvoix of this stickup and reinforcement, particularly improve the sound absorption qualities of bass area.This just has better compliance than the abatvoix of fiber-like or with the abatvoix that fiber-like material is strengthened at the requirement of senior room or Precision Machining workshop condition that dustproof, anti-fiber is arranged.
Claims (3)
1. a light weight concrete construction sound insulating panel is characterized in that, comprising:
Abatvoix, it is by being compounded to form the layer structure of described light weight concrete construction sound insulating panel;
The damping material layer, it is arranged between the described sound insulating panel, is used for connecting described abatvoix, and the transmission that intercepts sound wave.
2. light weight concrete construction sound insulating panel according to claim 1 is characterized in that, described abatvoix material is ALC porous sheet material.
3. light weight concrete construction sound insulating panel according to claim 2 is characterized in that, the thickness of described ALC sheet material is 35mm～150mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220103929 CN202831279U (en) | 2012-03-19 | 2012-03-19 | Lightweight concrete sound insulation plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220103929 CN202831279U (en) | 2012-03-19 | 2012-03-19 | Lightweight concrete sound insulation plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202831279U true CN202831279U (en) | 2013-03-27 |
Family
ID=47943023
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220103929 Expired - Fee Related CN202831279U (en) | 2012-03-19 | 2012-03-19 | Lightweight concrete sound insulation plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202831279U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102926475A (en) * | 2012-03-19 | 2013-02-13 | 南京旭建新型建材股份有限公司 | Lightweight concrete sound insulation plate |
| CN105003024A (en) * | 2015-05-28 | 2015-10-28 | 北京谐声昊普声学技术有限公司 | Building board |
| CN105544913A (en) * | 2015-12-31 | 2016-05-04 | 卓达新材料科技集团有限公司 | Novel sound-insulation decorating plate |
-
2012
- 2012-03-19 CN CN 201220103929 patent/CN202831279U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102926475A (en) * | 2012-03-19 | 2013-02-13 | 南京旭建新型建材股份有限公司 | Lightweight concrete sound insulation plate |
| CN102926475B (en) * | 2012-03-19 | 2015-09-09 | 南京旭建新型建材股份有限公司 | Lightweight concrete sound insulation plate |
| CN105003024A (en) * | 2015-05-28 | 2015-10-28 | 北京谐声昊普声学技术有限公司 | Building board |
| CN105544913A (en) * | 2015-12-31 | 2016-05-04 | 卓达新材料科技集团有限公司 | Novel sound-insulation decorating plate |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130327 Termination date: 20160319 |