CN104018613A - Light high-efficiency sound absorption and insulation module and preparation method and application thereof - Google Patents
Light high-efficiency sound absorption and insulation module and preparation method and application thereof Download PDFInfo
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- CN104018613A CN104018613A CN201410280353.1A CN201410280353A CN104018613A CN 104018613 A CN104018613 A CN 104018613A CN 201410280353 A CN201410280353 A CN 201410280353A CN 104018613 A CN104018613 A CN 104018613A
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Abstract
The invention relates to a light high-efficiency sound absorption and insulation module and a preparation method and application thereof and belongs to the technical field of sound absorption and insulation and noise reduction materials. The light high-efficiency sound absorption and insulation module comprises a cement mortar plaster layer, an aerated concrete block, a Basf cotton layer, an outer wall alkali-resistant special gridding cloth layer and a sandstone spraying layer, wherein the Basf cotton layer is clung to the surface of one side of the aerated concrete block; the cement mortar plaster layer is smeared on the surface of the other side of the aerated concrete block; the outer wall alkali-resistant special gridding cloth layer is fixed on the Basf cotton layer; the surface of the outer wall alkali-resistant special gridding cloth layer is coated with the sandstone spraying layer. According to repeated test and final test in the building environment detection center in Tsinghua University, the sound absorption and insulation module is obvious in sound absorption and insulation effect, and the product is low in production cost and wide in material source and has high applicability and good popularization effect.
Description
Technical field
The present invention relates to a kind of efficient and light weight sound absorption module, its preparation method and application thereof, belong to and inhale sound insulation and noise reduction technical field.
Background technology
The construction wall of efficient and light weight sound insulation module is the important component that prevents noise pollution, and it is widely used in civilian, business and industrial circle.The high sound insulation building structure of existing lightweight is mainly by lightgage steel joist, the on-the-spot laying of sound absorption material and gypsum plank or other sound insulating materials forms, be about to lightgage steel joist and laterally and between body of wall or factory building column be welded into wingceltis bar, again lightgage steel joist is longitudinally welded to formation skeleton, gypsum plank or other sound insulating materials are laid on keel one by one, after filling sucting sound material just at the opposite side of keel fixedly gypsum plank or other sound insulating materials, last at the outside of factory building corrugated sheet, with this, form sound absorption structure, mainly there is following shortcoming in this structure: the gap between (1) gypsum plank and gypsum plank is inevitable, sealing is poor, there is leakage sound, thereby cause the sound insulation property of whole body of wall to decline to a great extent, (2) inside and outside acoustic isolater connects by lightgage steel joist, with this, has " overhead speaker ", and the sound insulation property of whole body of wall is poor, (3) due to the insufficient rigidity of lightgage steel joist itself, when the sectional area of body of wall is greater than 30 square metres, the rigidity of sound absorption body of wall must rely on wingceltis bar guarantee by gate beam, and then increase cost, (4) not can manufacture, and the on-the-spot operation of laying is many, during filling sucting sound material, dust overflows surrounding environment is caused to secondary pollution, and the labour intensity of laying gypsum plank is large, and the cycle is long, and efficiency is low, and cost is high, (5) need on the body of wall of building, overlay in addition one deck, also reduced the actual usable floor area of building and increased cost simultaneously.
Although the sound insulation property of the sound absorption composite construction of the embedded trussed construction of the disclosed sound insulation module of the Chinese invention patent application that publication number is CN102828564A and band sound insulation module increases, on-the-spot lay that operation reduces to some extent and reduction to a certain degree cost, but sound insulation property can't meet actual demand completely, and this is invented disclosed composite construction and also need on the body of wall of building, overlay in addition one deck and reduced the actual usable floor area of building and increased cost.
Summary of the invention
According to the demand in above-mentioned field and deficiency, the invention provides a kind of efficient and light weight sound absorption module, its preparation method and application thereof.Sound absorption module of the present invention is through test of many times, pass through the final test of architectural environment inspection center of Tsing-Hua University simultaneously, suction soundproof effect is remarkable, efficient and light weight sound absorption module can be directly to use as body of wall, without overlay in addition the actual usable floor area that one deck has guaranteed building on the body of wall of building, reduced cost of production, and it draws materials extensively, there is stronger applicability and promotion effect.
Technical scheme of the present invention is as follows:
An efficient and light weight sound absorption module, is characterized in that, described sound absorption module comprises: cement mortar floated coat, air-entrained concrete building block, the cotton layer of BASF, the alkaline-resisting private network scrim layer of exterior wall, sandstone sprayed coating; The cotton layer of described BASF is close to air-entrained concrete building block one side, described cement mortar floated coat is applied in the another side of air-entrained concrete building block, it is upper that the alkaline-resisting private network scrim layer of described exterior wall is fixed on the cotton layer of BASF, and described sandstone sprayed coating is coated the surface of the alkaline-resisting private network scrim layer of described exterior wall.
The coating layer thickness of described sandstone sprayed coating is 2～4mm, and sandstone coat side density is 3.2～6.4kg/m approximately
2.
The alkaline-resisting special-purpose grid cloth of exterior wall, mesh: 5mm * 5mm, grammes per square metre: 80～100g/m
2, fabric width: 1000mm.
The cotton thickness of BASF in the cotton layer of described BASF is 30mm, and surface density is 0.26kg/m
2.
Air-entrained concrete building block thickness is 80～100mm, and unit weight is 500～700kg/m
3.
In cement mortar floated coat, the thickness of cement mortar is: 15～20mm, bulk density is 1900kg/m
3left and right.
The coating layer thickness of described sandstone sprayed coating is 3mm, the about 4.8kg/m of sandstone coat side density
2; Air-entrained concrete building block thickness is 80mm, and unit weight is 650kg/m
3; In cement mortar floated coat, the thickness of cement mortar is: 15～20mm, bulk density is 1800～2000kg/m
3.
A preparation method for efficient and light weight sound absorption module, is characterized in that, comprises the steps:
(1) by cement mortar, the mixed mud building blocks of the aerating of 80～100mm is built into a body of wall;
(2) the thick BASF cotton of 30mm is fixed on to mixed mud building blocks one side surface of aerating of step (1), forms the cotton layer of BASF;
(3) the fixing alkaline-resisting special-purpose grid cloth of one deck exterior wall on the surface of the cotton layer of BASF, the alkaline-resisting private network scrim layer of formation exterior wall;
(4) with inorganic high-temp glue mediation sand, with mixer, sand is modulated into the mortar of viscosity 18～20s, viscosity is as the criterion mortar ejection to be just in time applicable to Φ 2.5 bore floating type spray guns, with Φ 2.5 bore floating type spray guns by described mortar spraying the surface at the alkaline-resisting special-purpose grid cloth of exterior wall, form sandstone sprayed coating;
(5) on the opposite side surface of the mixed mud building blocks of aerating, smearing one deck bulk density is 1800～2000kg/m
3the thick cement mortar of 15～20mm, form cement mortar floated coat, obtain described efficient and light weight sound absorption module.
The unit weight of the mixed mud building blocks of described aerating is 650kg/m
3, the coating thickness of the mortar of step (4) is 2～4mm, sandstone coat side density is 3.2～6.4kg/m approximately
2.
By air nail, fixedly BASF is cotton, and air nail spacing is 400～450mm herein; With the alkaline-resisting special-purpose grid cloth of air nail fixed outer wall, air nail spacing is 80～100mm herein;
The application of above-mentioned sound absorption module.
Module making process of the present invention is as follows:
1) choose the mixed mud building blocks of aerating that 80～100mm is thick, by cement mortar, by building operations requirement, the mixed mud building blocks of the aerating of 80mm is puzzled, require surfacing;
2) on the mixed mud building blocks of the aerating puzzling surface, by air nail, the thick BASF cotton of 30mm is fixed on to stripping and slicing surface, air nail spacing is 400mm;
3) the alkaline-resisting special-purpose grid cloth of one deck exterior wall is set on the surface of BASF cotton, the alkaline-resisting special-purpose grid cloth of exterior wall is fixed by air nail, and air nail spacing is 100mm;
4) inorganic high-temp glue mediation sand, is modulated into by sand the mortar that viscosity is 18～20s with mixer, and the mortar in this range of viscosities can better be realized best adhesion and realize surface spraying effect.
5) with Φ 2.5 bore floating type spray guns by mortar spraying the surface at the alkaline-resisting special-purpose grid cloth of exterior wall, form sandstone sprayed coating, the mortar coating thickness of sandstone sprayed coating is 2～4mm;
6) at the another side of the mixed mud building blocks of aerating, smearing one deck bulk density is 1800～2000kg/m
3the thick cement mortar of 15～20mm, form cement mortar floated coat, obtain described efficient and light weight sound absorption module.
Module of the present invention has sound absorption and sound insulation concurrently:
Sound absorption coefficient is high: sound absorption coefficient reaches 0.9;
Sound insulation factor is large: sound insulation factor is 42 (0;-3) dB.
The raw material of module of the present invention have environmental-protecting performance:
Module of the present invention is the New Building Materials that a kind of light porous, thermal insulation, fireproof performance are good, can follow closely, can saw, can dig and have certain shock resistance, is a kind of good New Building Materials, and has the advantages such as environmental protection.
The advantage of module of the present invention:
1) lightweight
It is carrier that the mixed clay brick of aerating is take in module building block of the present invention, and the weight of the mixed clay brick of aerating of use is 500-700 kilogram/m
3, be only equivalent to the 1/4-1/3 of loam brick and sand lime brick, 1/5 of ordinary concrete, lighter a kind of in this module building block concrete, be applicable to the infilled wall of highrise building and the load bearing wall of low-rise building.Use this material, can make the deadweight from the mixed structural construction of anharmonic ratio common brick of whole building reduce more than 40%, because structural weight per square meter alleviates, destructive power of the earthquake is little, so greatly improve the shock resistance of building.
2) thermal and insulating performance is good
The coefficient of thermal conductivity of the mixed clay brick of aerating using in module of the present invention, for 0 hour 0 degree of 0.11-0.18 kilocalorie/rice, is only the 1/4-1/5 of grain cob brick and sand lime brick, is 1/6 left and right of ordinary concrete.Facts have proved: the heat insulation effect of this module body of wall of 20 cm thicks is just equivalent to the heat insulation effect of the loam brick body of wall of 49 cm thicks, heat-proof quality is also better than 24 centimetres of brick wall bodies greatly.
3) intensity is high
Through experiment, this module compressive strength is greater than 25 kilograms/cm
2, be equivalent to the compressive strength of No. 125 loam bricks and sand lime brick.
4) anti-seismic performance is good
Design oscillation degree and Fengnan, Tangshan earthquake magnitude are the concussion that the seismic facies of 7.8 grades is worked as, according to the model building of investigating module of the present invention after shake, several cracks have only newly been there are, and brick mix structure model building almost all collapses, make these two not far from one another, structure is identical and model building that material is different has formed distinct contrast.Think, Here it is because this module unit weight is light, and overall performance is good, and during earthquake, inertia force is little, so have certain shock resistance.This will have very large benefit for our this many earthquakes country.
5) good processability
Module of the present invention has good processing characteristics, can saw, can dig, can follow closely, can milling, can bore, and can in manufacture process, add reinforcing bar, to construction, brought very large convenience and flexibility.
6) there is certain heat-resisting quantity
Module of the present invention is that its compressive strength slightly increases below 600 ℃ time in temperature, and when temperature is during 600 ℃ of left and right, compressive strength when its compressive strength approaches normal temperature, so reach country-level fire-protection standard as the fireproof performance of this module of constructional materials.
7) sound insulation value is good
From module air hole structure of the present invention, because the internal construction image planes bag of this module is the same, a large amount of sealed porosity that distributing equably, therefore has the sound absorption qualities that common buildings material does not have.
8) be conducive to mechanized construction
As things go, prefabricated module assembling large plate of the present invention can be saved finished product stacking place; Saving is built by laying bricks or stones manually; Reduced wet trade; Accelerate site operation progress, improved efficiency of construction.
9) strong adaptability
Can be according to the different raw material in locality, different condition comes amount body surely to make.Raw material are selected wide, and spraying can be selected desert, sandy beach, sea sand, river sand on the spot with sand;
The raw material of the mixed clay brick of aerating can select river sand, flyash, ore in sand form etc. multiple, its manufacturing process is raw material to be put into ball mill make slurry, lime after slurry, cement and processing is sent in cast mixer by feeding device, carry out high-speed stirred, the mixed slurry being stirred is through being poured in die cavity frame, the framed ferry-boat of having poured into a mould is carried out to the thermostatic curing of 2～3 hours to the place of appointment, the base substrate that meets split requirement is carried out to cutting process finished product by predetermined size, suit measures to local conditions.And can be salvaged, environmental, real turns waste into wealth.
The preparation process of the cement mortar of cement mortar floated coat:
(washed-out sand is that natural silica Sand is through the Foundry sand of washing, classification, mud content (mass fraction)≤1.0% to fetch washed-out sand.), first with sieve, sand is sieved, remove the impurity such as stone wherein, with scale, take the sand of constant weight and pack in mixing tank, take again the weight cement with sand 1/2, pour in mixing tank, and by cement and sand drawout, then add inwards water, the use amount of water is the same with the weight of cement, with spade, mix, repeated multiple times, until cement and sand are mixed; Then standing about five minutes, stand-by; When touching ash manipulation, also need to carry out mixed once processing.
The mortar preparation process of mortar spraying layer:
First with sieve, sieve sand, then take appropriate sand, pour in agitator, then take the inorganic high-temp glue identical with sand weight---pour in agitator, start agitator, stir, mixing time is 4～5min, then stand-by.
The present invention organically combines several low suction sound insulation value inorganic material and organic material, realize superpower suction sound insulation value, its effect higher than the performance of several ground sound insulation materials add and, required raw material wide material sources of while, cheap, construction technology is simple, rational in infrastructure, still belongs to the first time at home.
The present invention passes through gas concrete brick, BASF cotton and fine sand the organic assembling of cement, glass wool cloth, self threading pin and glue, by succinct, rational construction technology, be combined into an organic module, this module realized and there is better suction sound insulation value and heat-insulating property;
Sound insulation module of the present invention can be made the little unit such as load-bearing wall-building brick, wood floor bolck and sell use, also can as wallpaper, make the form of sound insulation macroplate, and user can come according to the actual needs or the mode such as saw or cut is cut apart.
Sound insulation module of the present invention is applicable to the larger places of noise such as factory, theater, public place of entertainment, draws materials extensively, and various shapes, its function admirable, cheap, be better than other noise reduction product, there is great promotional value.
Accompanying drawing explanation
Fig. 1 is efficient and light weight sound absorption modular structure schematic diagram of the present invention;
Fig. 2 is air-entrained concrete building block schematic diagram of the present invention;
Fig. 3 is the cotton layer of BASF of the present invention schematic diagram;
Fig. 4 is the alkaline-resisting private network scrim layer of exterior wall of the present invention schematic diagram;
Fig. 5 is sandblast process schematic diagram of the present invention;
Fig. 6 is sandstone sprayed coating schematic surface of the present invention;
Fig. 7 is cement mortar floated coat schematic diagram of the present invention;
Reference numeral lists as follows: 1-cement mortar floated coat, 2-air-entrained concrete building block, the cotton layer of 3-BASF, the alkaline-resisting private network scrim layer of 4-exterior wall, 5-sandstone sprayed coating.
The specific embodiment:
Below in conjunction with accompanying drawing, the present invention will be described.It is in order further to understand better the present invention that following embodiment is provided; be not limited to described preferred forms; content of the present invention and protection domain are not construed as limiting; anyone under enlightenment of the present invention or by the present invention, combines with the feature of other prior aries and any and the present invention of drawing is identical or akin product, within all dropping on protection scope of the present invention.
Special glue: inorganic high-temp glue, heatproof is more than 1000 ℃, and what the present invention used is Huaneng Group board inorganic high-temp glue;
Sand: Desert Sand, beach sand, sea sand, river sand, manufactured sands etc. are multiple;
Mixer: Nantong Clare produces the general ribbon flat mixer of CLARE;
The alkaline-resisting special-purpose grid cloth of exterior wall: general special-purpose exterior wall grid cloth on the market, in Hebei, there is a large amount of manufacturers, also there is production in other province; Its specification is: mesh: 5mm * 5mm, grammes per square metre: 80～100g/m
2, fabric width: 1000mm.What the present invention used is the product that Renqiu City Bao Qiao fiberglass products factory produces;
BASF is cotton: German BASF acoustical cotton, and this cotton has started production domesticization at present, originates wider; Specification: thickness is 30mm, surface density is 0.26kg/m
2.The BASF acoustical cotton that the present invention uses is to be purchased from Hebei great achievement heat insulating material Co., Ltd;
Φ 2.5 bore floating type building spray gun specials: domestic production, this spray gun all can be purchased and put in place in hardware & tools shop on the market; Specifications and models: rock field board MG-6C, bore: Φ 2.5, floating type.
Fig. 1 is a kind of efficient and light weight sound absorption of the present invention modular structure schematic diagram, as shown in Figure 1, and a kind of efficient and light weight sound absorption of the present invention module, structure comprises cement mortar floated coat 1, air-entrained concrete building block 2, the cotton layer 3 of BASF, the alkaline-resisting private network scrim layer 4 of exterior wall, sandstone sprayed coating 5; The cotton layer 3 of described BASF is close to the one side of air-entrained concrete building block 2, described cement mortar floated coat 1 is applied in the another side of air-entrained concrete building block 2, the alkaline-resisting private network scrim layer 4 of described exterior wall is fixed on the cotton layer 3 of BASF, and described sandstone sprayed coating 5 is coated the surface of the alkaline-resisting private network scrim layer 4 of described exterior wall.The efficient and light weight sound absorption module with structure and composition of the present invention, suction soundproof effect is remarkable, can be directly to use as body of wall, without overlay in addition the actual usable floor area that one deck has guaranteed building on the body of wall of building, reduced cost of production, and it is drawn materials extensively, there is stronger applicability and promotion effect.
embodiment 1. prepares efficient and light weight sound absorption module 1 and performance data thereof
1) choose the mixed mud building blocks (600 * 250 * 80mm) of aerating that 80mm is thick, choose a more smooth ground, by cement mortar, by building operations requirement, the mixed mud building blocks of the aerating of 80mm is puzzled, require surfacing;
2) by air nail, the thick BASF of 30mm is cotton on the mixed mud building blocks of the aerating puzzling surface, the about 0.26kg/m of surface density
2be fixed on stripping and slicing surface, air nail spacing is 400mm;
3) the alkaline-resisting special-purpose grid cloth of one deck exterior wall is set on the surface of BASF cotton, the alkaline-resisting special-purpose grid cloth of exterior wall is fixed by air nail, and air nail spacing is 100mm;
4) with a special container, fine sand is in harmonious proportion by special inorganic high-temp glue, with mixer, mortar being modulated to viscosity is 18～20s;
5) with Φ 2.5 bore floating type spray guns by mortar spraying the surface at the alkaline-resisting special-purpose grid cloth of exterior wall, the mortar coating thickness of sandstone sprayed coating is 3mm, sandstone spray-coating surface density is 4.8kg/m
2;
6) at the another side of the mixed mud building blocks of aerating, smearing one deck bulk density is 2000kg/m
3the thick cement mortar of 15mm, obtain efficient and light weight sound absorption module 1.
the performance data of efficient and light weight sound absorption module 1 is as follows
| Frequency/Hz | Sound absorption coefficient/a | Sound insulation factor/dB |
| 100 | 0.17 | 32.9 |
| 125 | 0.20 | 35.2 |
| 160 | 0.39 | 33.3 |
| 200 | 0.55 | 32.8 |
| 250 | 0.62 | 35.0 |
| 315 | 0.79 | 33.5 |
| 400 | 0.89 | 32.9 |
| 500 | 0.98 | 36.0 |
| 630 | 0.97 | 39.1 |
| 800 | 0.96 | 42.4 |
| 1000 | 0.96 | 44.0 |
| 1250 | 0.93 | 49.7 |
| 1600 | 0.93 | 52.2 |
| 2000 | 0.94 | 54.2 |
| 2500 | 0.98 | 54.0 |
| 3150 | 0.96 | 53.7 |
| 4000 | 0.96 | 52.8 |
| 5000 | 0.96 | -- |
| ā | 0.79 | -- |
| NRC | 0.90 | -- |
| R W(C,Ctr) | -- | 42(0；-3) |
1, ā is 100-5000Hz average sound absorption coefficient.
2, NRC is noise reduction coefficient, is the average (seeing GB3947) of 250,500,1000,2000Hz4 octave band sound absorption coefficient.
3, R
wfor standard GB/T/T50121-2005 weighted transmission loss.
4, C, Ctr is frequency spectrum correction (C is between two spaces of interior of building, and Ctr is between building interior space and space outerpace).
embodiment 2. prepares efficient and light weight sound absorption module 2 and performance data thereof
Preparation process is with embodiment 1; Module is described as follows concrete composition:
It is that sandstone sprays that body of wall is subject to sound face, coating layer thickness: 2mm; The about 3.2kg/m of sandstone spray-coating surface density
2; BASF face thickness: 0mm, the about 0.26kg/m of surface density
2; It is thick that aerating mixes mud building blocks (600 * 250 * 100mm) 100mm; The thickness 15mm of cement mortar in cement mortar floated coat, bulk density is 1800kg/m
3; Size and mounting method: area 4.2m * 2.4m is 0.08m altogether
2, tiling reverberation room ground periphery is gone along with sb. to guard him with solid wood baffle plate.
the performance data of efficient and light weight sound absorption module 2 is as follows:
| Frequency/Hz | Sound absorption coefficient/a | Sound insulation factor/dB |
| 100 | 0.16 | 32.9 |
| 125 | 0.19 | 35.2 |
| 160 | 0.38 | 33.3 |
| 200 | 0.53 | 32.8 |
| 250 | 0.60 | 35.0 |
| 315 | 0.78 | 33.5 |
| 400 | 0.86 | 32.9 |
| 500 | 0.94 | 36.0 |
| 630 | 0.95 | 39.1 |
| 800 | 0.96 | 42.4 |
| 1000 | 0.96 | 44.0 |
| 1250 | 0.93 | 49.7 |
| 1600 | 0.93 | 52.2 |
| 2000 | 0.94 | 54.2 |
| 2500 | 0.97 | 54.0 |
| 3150 | 0.95 | 53.7 |
| 4000 | 0.95 | 52.8 |
| 5000 | 0.95 | -- |
| ā | 0.77 | -- |
| NRC | 0.90 | -- |
| R W(C,Ctr) | -- | 42(0；-3) |
embodiment 3. prepares efficient and light weight sound absorption module 3 and performance data thereof
Preparation process is with embodiment 1; Module is described as follows concrete composition:
It is that sandstone sprays that body of wall is subject to sound face, coating layer thickness: 4mm; The about 6.4kg/m of sandstone spray-coating surface density
2; Cotton thickness: the 30mm of BASF, the about 0.26kg/m of surface density
2; It is thick that aerating mixes mud building blocks (600 * 250 * 90mm) 90mm; The thickness 20mm of cement mortar in cement mortar floated coat, bulk density is 2000kg/m
3; Size and mounting method: area 4.2m * 2.4m is 10.08m altogether
2, tiling reverberation room ground periphery is gone along with sb. to guard him with solid wood baffle plate.
the performance data of efficient and light weight sound absorption module 3 is as follows:
| Frequency/Hz | Sound absorption coefficient/a | Sound insulation factor/dB |
| 100 | 0.20 | 32.9 |
| 125 | 0.23 | 35.2 |
| 160 | 0.42 | 33.3 |
| 200 | 0.58 | 32.8 |
| 250 | 0.68 | 35.0 |
| 315 | 0.86 | 33.5 |
| 400 | 0.91 | 32.9 |
| 500 | 0.98 | 36.0 |
| 630 | 0.97 | 39.1 |
| 800 | 0.96 | 42.4 |
| 1000 | 0.96 | 44.0 |
| 1250 | 0.94 | 49.7 |
| 1600 | 0.94 | 52.2 |
| 2000 | 0.94 | 54.2 |
| 2500 | 0.98 | 54.0 |
| 3150 | 0.96 | 53.7 |
| 4000 | 0.96 | 52.8 |
| 5000 | 0.96 | -- |
| ā | 0.80 | -- |
| NRC | 0.90 | -- |
| R W(C,Ctr) | -- | 42(0；-3) |
At this, indicate, above narration contributes to those skilled in the art to understand the invention, but and the protection domain of unrestricted the invention.Any do not depart from the invention flesh and blood to being equal to replacement, modify improving and/or deleting numerous conforming to the principle of simplicity and the enforcement carried out of above narration, all fall into the protection domain of the invention.
Claims (11)
1. an efficient and light weight sound absorption module, is characterized in that, described sound absorption module comprises: cement mortar floated coat, air-entrained concrete building block, the cotton layer of BASF, the alkaline-resisting private network scrim layer of exterior wall, sandstone sprayed coating; The cotton layer of described BASF is close to air-entrained concrete building block one side, described cement mortar floated coat is applied in the another side of air-entrained concrete building block, it is upper that the alkaline-resisting private network scrim layer of described exterior wall is fixed on the cotton layer of BASF, and described sandstone sprayed coating is coated the surface of the alkaline-resisting private network scrim layer of described exterior wall.
2. sound absorption module according to claim 1, is characterized in that, the coating layer thickness of described sandstone sprayed coating is 2～4mm, and sandstone coat side density is 3.2～6.4kg/m approximately
2.
3. sound absorption module according to claim 2, is characterized in that, the alkaline-resisting special-purpose grid cloth of exterior wall, mesh: 5mm * 5mm, grammes per square metre: 80～100g/m
2, fabric width: 1000mm.
4. sound absorption module according to claim 3, is characterized in that, the cotton thickness of BASF in the cotton layer of described BASF is 30mm, and surface density is 0.26kg/m
2.
5. sound absorption module according to claim 4, is characterized in that, air-entrained concrete building block thickness is 80～100mm, and unit weight is 500～700kg/m
3.
6. sound absorption module according to claim 5, is characterized in that, in cement mortar floated coat, the thickness of cement mortar is: 15～20mm, bulk density is 1800～2000kg/m
3.
7. sound absorption module according to claim 6, is characterized in that, the coating layer thickness of described sandstone sprayed coating is 3mm, the about 4.8kg/m of sandstone coat side density
2; Air-entrained concrete building block thickness is 80mm, and unit weight is 650kg/m
3; In cement mortar floated coat, the thickness of cement mortar is: 15～20mm, bulk density is 1800～2000kg/m
3.
8. a preparation method for efficient and light weight sound absorption module, is characterized in that, comprises the steps:
(1) by cement mortar, the mixed mud building blocks of the aerating of 80～100mm is built into a body of wall;
(2) the thick BASF cotton of 30mm is fixed on to mixed mud building blocks one side surface of aerating of step (1), forms the cotton layer of BASF;
(3) the fixing alkaline-resisting special-purpose grid cloth of one deck exterior wall on the surface of the cotton layer of BASF, the alkaline-resisting private network scrim layer of formation exterior wall;
(4) use inorganic high-temp glue mediation sand, is modulated into sand with mixer the mortar of viscosity 18～20s, and use Φ 2.5 bore floating type spray guns are the surface at the alkaline-resisting special-purpose grid cloth of exterior wall by described mortar spraying, forms sandstone sprayed coating;
(5) on the opposite side surface of the mixed mud building blocks of aerating, smearing one deck bulk density is 1800～2000kg/m
3the thick cement mortar of 15～20mm, form cement mortar floated coat, obtain described efficient and light weight sound absorption module.
9. method according to claim 7, is characterized in that, the unit weight of the mixed mud building blocks of described aerating is 650kg/m
3, the coating thickness of the mortar of step (4) is 2～4mm, sandstone coat side density is 3.2～6.4kg/m approximately
2.
10. method according to claim 7, is characterized in that, by air nail, fixedly BASF is cotton, and air nail spacing is 400～450mm herein; With the alkaline-resisting special-purpose grid cloth of air nail fixed outer wall, air nail spacing is 80～100mm herein.
11. according to the application of the arbitrary described sound absorption module of claim 1～6.
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| CN201410280353.1A CN104018613B (en) | 2014-06-20 | 2014-06-20 | A kind of efficient and light weight sound absorption module, its preparation method and application thereof |
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| CN104018613A true CN104018613A (en) | 2014-09-03 |
| CN104018613B CN104018613B (en) | 2016-08-24 |
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| CN201410280353.1A Active CN104018613B (en) | 2014-06-20 | 2014-06-20 | A kind of efficient and light weight sound absorption module, its preparation method and application thereof |
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| DE202009006933U1 (en) * | 2009-05-13 | 2009-08-27 | Borkowski, Martin | Building board for the production of a soundproof wall |
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| CN204199528U (en) * | 2014-06-20 | 2015-03-11 | 北京天润康隆科技股份有限公司 | A kind of efficient and light weight sound absorption module |
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| DE202009006933U1 (en) * | 2009-05-13 | 2009-08-27 | Borkowski, Martin | Building board for the production of a soundproof wall |
| CN202202425U (en) * | 2011-08-16 | 2012-04-25 | 乔金栋 | Vertical fiber rock wool belt external heat-insulation system for thin-plastered external wall |
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| CN104018613B (en) | 2016-08-24 |
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Inventor after: Miao Yongkang Inventor after: Ma Shiyong Inventor after: Xie Huili Inventor before: Miao Yongkang Inventor before: Ma Shiyong |
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Effective date of registration: 20200421 Address after: 075400 Hebei Huailai Zhangjiakou County East Garden Town SME incubation base Patentee after: HEBEI HUIKANG HENGDA ENVIRONMENTAL PROTECTION TECHNOLOGY Co.,Ltd. Address before: 100096, new building, building 4, 7 Hui Feng Road, Beijing, Haidian District, 411 Patentee before: BEIJING TIAN RUN KANG LONG TECH Co.,Ltd. |