CN204151703U - A kind of MULTILAYER COMPOSITE precast concrete sound barrier panel - Google Patents

A kind of MULTILAYER COMPOSITE precast concrete sound barrier panel Download PDF

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Publication number
CN204151703U
CN204151703U CN201420053701.7U CN201420053701U CN204151703U CN 204151703 U CN204151703 U CN 204151703U CN 201420053701 U CN201420053701 U CN 201420053701U CN 204151703 U CN204151703 U CN 204151703U
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China
Prior art keywords
concrete
sound
barrier panel
sound barrier
layer
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Expired - Lifetime
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CN201420053701.7U
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Chinese (zh)
Inventor
李波
张磊
汪海生
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ANHUI ZHONGBAO BUILDING MATERIAL TECHNOLOGY Co Ltd
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ANHUI ZHONGBAO BUILDING MATERIAL TECHNOLOGY Co Ltd
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Abstract

The utility model discloses a kind of MULTILAYER COMPOSITE precast concrete sound barrier panel, relating to a kind of for preventing or the conventional method of noise decrease or other sound waves or device.Its objective is to provide good, lightweight, the easy carrying of a kind of sound insulation performance muffler, constructability installs and do not need cast in situs, MULTILAYER COMPOSITE precast concrete sound barrier panel that noise reduction cost is low.Described sound barrier panel is followed successively by from inside to outside; by puigging (1), noise reduction layer (2), the sound absorbing layer (3) of being built by sand-free coarse porous concrete haydite concrete, the decorative layer (4) of being built by fibre-forming polymer mortar of being built by pottery sand concrete of light high-strength haydite concreting; the strength grade of concrete of described puigging (1) is more than C30; the thickness of described noise reduction layer (2) is 20mm; strength grade of concrete is C5; the thickness of described sound absorbing layer (3) is 50mm, and strength grade of concrete is C15.

Description

A kind of MULTILAYER COMPOSITE precast concrete sound barrier panel
Technical field
The utility model relates to a kind of for preventing or the general device of noise decrease or other sound waves, particularly relates to a kind of MULTILAYER COMPOSITE precast concrete sound barrier panel.
Background technology
Between sound source and recipient, insert a facility, make Acoustic Wave Propagation have a significant additional attenuation, thus weaken the influence of noise in the certain area at recipient place, such facility is just called sound barrier (noise barriers).Sound wave, in communication process, when running into sound barrier, will to reflect, transmission and diffraction three kinds of phenomenons, it has been generally acknowledged that sound barrier can stop through sonic propagation, and makes transmission sound have enough decay.Between sound source and acceptance point, insert a sound barrier, if barrier endless, sound wave can only be gone over from diffraction above barrier, and forms a sound shadow region thereafter, is blocked formation shade as light by object.In this sound shadow region, people can feel that noise reduces significantly, the noise reduction effect of Here it is sound barrier.The design of sound barrier comparatively substantially envisage overhead super expressway, urban light rail, subway wind carry, the shock safety of vehicular traffic and round-the-clock outdoor Anticorrosion, be specially adapted to overhead super expressway and urban light rail, the antinoise of subway uses, and is the optimal sound insulation and noise reducing facility in modern city.Conventional outdoor sound barrier panel is the armored concrete slab of cast in situs, sound insulation erasure effect is poor, and not easily carry due to too heavy, installation difficulty is strengthened, have a strong impact on operating efficiency, in addition, cast in situs need take construction plant, inconvenience be also result in other construction operations in place, each of which increases sound insulation and noise reducing cost.
Utility model content
The technical problems to be solved in the utility model is to provide good, lightweight, the easy carrying of a kind of sound insulation performance muffler, constructability is installed and do not need cast in situs, MULTILAYER COMPOSITE precast concrete sound barrier panel that noise reduction cost is low.
A kind of MULTILAYER COMPOSITE precast concrete of the utility model sound barrier panel; described sound barrier panel is followed successively by from inside to outside, by puigging, noise reduction layer, the sound absorbing layer of being built by sand-free coarse porous concrete haydite concrete, the decorative layer of being built by fibre-forming polymer mortar of being built by pottery sand concrete of light high-strength haydite concreting.
By the puigging of light high-strength haydite concreting, have lightweight, high-strength, thermal insulation, sound-absorbing, shock absorbing, no alkali-aggregate reaction, acidproof, wear-resisting, with the characteristic such as asphalt adhesion is high, structure loading more than 1/3rd can be alleviated, realize increasing the target that span improves bearing capacity, saving construction cost cost, and without cast in situs, can be prefabricated in the factory, do not need the place taking noise reduction area, can not therefore make troubles, for construction brings great convenience;
The noise reduction layer of being built by pottery sand concrete comparatively ordinary concrete shrinkage has larger improvement, can ensure the stability of sound barrier panel, not easily occur crack, causes damaging;
The noise reduction layer of being built by sand-free coarse porous concrete haydite concrete, concrete pore is large, cement consumption is few, in turn ensure that higher intensity while weight reduction;
The decorative layer of being built by fibre-forming polymer mortar; have flexible high, product adhesion strength is high, weatherability is high, water-proofing anticracking is effective, use environmental protection, the plurality of advantages such as easy to operate; adopt fibre-forming polymer mortar both can protect sound barrier panel surface; prevent cracking; can decorate again, reduce visual fatigue.
A kind of MULTILAYER COMPOSITE precast concrete of the utility model sound barrier panel difference from prior art is a kind of MULTILAYER COMPOSITE precast concrete of the utility model sound barrier panel, adopt light high-strength haydite concrete, pottery sand concrete, sand-free coarse porous concrete haydite concrete, fibre-forming polymer mortar, precasting process is adopted in factory, form the compound sound barrier plate of sandwich construction, more common two layers of sound insulation erasure effect, the sound barrier panel of three layer construction is good, both ensure that the strength and stability of sound barrier panel simultaneously, significantly reduce weight again, constructability is installed, and do not need cast in situs, avoid the various inconvenience taking construction plant and cause, improve construction operation efficiency, reduce noise reduction cost.
A kind of MULTILAYER COMPOSITE precast concrete of the utility model sound barrier panel, the strength grade of concrete of wherein said puigging is more than C30.
A kind of MULTILAYER COMPOSITE precast concrete of the utility model sound barrier panel, the thickness of wherein said noise reduction layer is 20mm, and strength grade of concrete is C5.
A kind of MULTILAYER COMPOSITE precast concrete of the utility model sound barrier panel, the thickness of wherein said sound absorbing layer is 50mm, and strength grade of concrete is C15.
A kind of MULTILAYER COMPOSITE precast concrete of the utility model sound barrier panel, the thickness of wherein said decorative layer is 1-3mm.
A kind of MULTILAYER COMPOSITE precast concrete of the utility model sound barrier panel, the number of plies of wherein said noise reduction layer or described sound absorbing layer is at least one deck.Light weight concrete construction is compared with ordinary concrete, and under equivalent weight, the number of plies increases, and intensity is higher, and stability is better, and sound insulation erasure effect is also better.
A kind of MULTILAYER COMPOSITE precast concrete of the utility model sound barrier panel, wherein said sound absorbing layer is grid-like, and the shape of described decorative layer and the shape of described sound absorbing layer match.Sound absorbing layer and decorative layer shape are coincide and the two can be made to coordinate closely, strengthen the stability of sound barrier panel, and decorative layer also difficult drop-off.
Below in conjunction with accompanying drawing, a kind of MULTILAYER COMPOSITE precast concrete sound barrier panel of the present utility model is described further.
Accompanying drawing explanation
Fig. 1 is the front view of a kind of MULTILAYER COMPOSITE precast concrete of the utility model sound barrier panel;
Fig. 2 is the A-A sectional drawing of Fig. 1;
Fig. 3 is the B-B sectional drawing of Fig. 1;
Fig. 4 is the partial enlarged drawing of C in Fig. 3.
Detailed description of the invention
As shown in Fig. 1, Fig. 3, Fig. 4; a kind of MULTILAYER COMPOSITE precast concrete of the utility model sound barrier panel is followed successively by from inside to outside, by the puigging 1 of light high-strength haydite concreting, the noise reduction layer 2 of being built by pottery sand concrete, the sound absorbing layer 3 of being built by sand-free coarse porous concrete haydite concrete, the decorative layer 4 of being built by fibre-forming polymer mortar.Above-mentioned sound barrier is only described to be used in railway both sides, and puigging 1 is positioned at the inner side near rail, and decorative layer 4 is positioned at the outside away from rail.But the detailed description of the invention of a kind of MULTILAYER COMPOSITE precast concrete of the utility model sound barrier panel is not limited to this, can adjust according to the actual requirements.
Sound insulation materials is a kind of material of the isolation of noise of propagating in air, partition, separation, component or structure.For sound insulation materials, weaken transmission acoustic energy, the propagation of block sound, its material should be closely knit imporosity or gap.What daily sound barrier field was relatively more conventional has solid fragment of brick, armored concrete slab, plank, gypsum plank, iron plate, sound-insulating felt, fiberboard etc., and wherein, armored concrete slab application is more extensive, but steel concrete needs cast in situs, construction inconvenience.Haydite concrete is lightweight; its dry density is 800---1900KG/M3, and than ordinary concrete light 2/3-1/5, label can reach CL5.0---CL60; foundation load can be reduced; thus can make whole sound barrier panel weight reduction, due to from heavy and light, modulus of elasticity is lower; allow change performance larger; so good seismic performance, in addition, haydite concrete also has higher impermeability and durability.Therefore, the sound barrier panel good stability of building with haydite concrete, long service life, can reduce noise reduction cost greatly.And; haydite concrete construction adaptability is strong; can according to the different purposes of building and supporting capacity; make the concrete material of different unit weight and intensity, easy construction, be adapted to various construction method and carry out suitability for industrialized production; precasting process can be adopted to make sound barrier panel; and without cast in situs, avoid the inconvenience taking road construction place and bring, for construction brings facility.
Particularly, the puigging 1 of a kind of MULTILAYER COMPOSITE precast concrete of the utility model sound barrier panel innermost layer selects light high-strength haydite concrete, weight is lighter, bearing capacity is higher, wind loading rating is stronger, durability is better, sound insulation value is stronger, and preferably, strength grade of concrete is more than C30;
Sound-absorbing, quieter material are very little to the reflection of incident acoustic energy, acoustic energy easily enter and through, the material of material is porous, loose and ventilative, and its architectural feature is: have in material a large amount of, interpenetrate, from table to inner hole, also namely there is certain gas permeability.When sound wave incident is to porous material surface, cause the air vibration in hole, 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-absorbing, sound deadening.Noise reduction layer 2 selects pottery sand concrete, has porous, light weight, high-strength, the uniform feature of concrete pore.Crack is the ubiquitous problem of concrete material, material impact is had to the globality of structure and durability, pottery sand concrete comparatively ordinary concrete shrinkage has larger improvement, not easily crack, can ensure the stability of sound barrier panel, not easily occurs that crack causes damaging because shrinking, extend the application life of sound barrier panel, preferably, the thickness of noise reduction layer 2 is 20mm, and strength grade of concrete is C5;
Sound absorbing layer 3 is due to close to sound barrier panel external surface, so need intensity higher, sound absorption qualities is better, meet the requirement of exterior facing again simultaneously, therefore, select sand-free coarse porous concrete haydite concrete, because Liposcellis decolor does not have fines, only with coarse aggregate, cement is in order to cover the surface of coarse aggregate, and play cementation, instead of filling space, this just significantly reduces the weight of sound absorbing layer 3, and preparation Liposcellis decolor, general employing is compared with the ordinary Portland cement of high grade, such as, when match ratio is 1:8 ~ 1:20, intensity can reach 100 ~ 500kPa, density is 1600 ~ 1950kg/m3, higher intensity is in turn ensure that while weight reduction, preferably, the thickness of sound absorbing layer 3 can be 50mm, strength grade of concrete is C15,
Decorative layer 4 selects fibre-forming polymer mortar, the sand-free coarse porous concrete haydite concrete hole cross-sectional area selected due to the sound absorbing layer 3 of concrete acoustical barrier is less, easily form stress concentrate when Plastic Shrinkage of Concrete and drying shrinkage and ftracture, the sound barrier panel come into operation will bear the external actions such as vibration and gas shock, exacerbate the possibility of cracking, for reducing or eliminating crack, require that concrete has good resisted shrinkage performance and mechanical property, endurance quality, fibre-forming polymer mortar has flexible high simultaneously, product adhesion strength is high, weatherability is high, water-proofing anticracking is effective, use environmental protection, the plurality of advantages such as easy to operate, adopt fibre-forming polymer mortar to do decorative layer 4 both to protect sound barrier panel surface, prevent cracking, can decorate again, reduce visual fatigue, preferably, the thickness of described decorative layer 4 can be 1-3mm.
As shown in Figures 2 to 4, as further improvement, the number of plies of described noise reduction layer 2 or described sound absorbing layer 3 is at least one deck, according to no noise reduction demand, can multilayer noise reduction layer 2 or sound absorbing layer 3 be set between puigging 1 and decorative layer 4, form more multi-layered compound sound barrier plate.Owing to adopting light weight concrete construction, therefore, under equivalent weight, increase compound sound barrier flaggy number, can make that the intensity of sound barrier panel is higher, stability better, sound insulation erasure effect is better.
As shown in Figure 2, as further improving, above-mentioned sound absorbing layer 3 is grid-like, and grid form can be designed to various shape, be not limited thereto as common waveform, curved, grill-shaped, hollow shape etc., and the shape of above-mentioned decorative layer 4 and sound absorbing layer 3 shape match.Make to coordinate between sound absorbing layer 3 and decorative layer 4 tightr like this, the good stability of sound barrier panel entirety, and decorative layer 4 difficult drop-off.
A kind of MULTILAYER COMPOSITE precast concrete of the utility model sound barrier panel is according to the feature of different materials, compound is carried out when being prefabricated in the factory, than traditional prefabricated acoustic barrier plate, there is the advantages such as lightweight, sound insulation performance muffler is good, intensity is high, structural safety, reliability are high, wind loading rating is strong, and can without cast in situs, thus conveniently, sound-deadening and noise-reducing, the circuit that effectively can meet high-speed railway go along with sb. to guard him safe requirement for production, installation.
Above-described embodiment is only be described preferred embodiment of the present utility model; not scope of the present utility model is limited; under the prerequisite not departing from the utility model design spirit; the various distortion that those of ordinary skill in the art make the technical solution of the utility model and improvement, all should fall in protection domain that the utility model claims determine.

Claims (4)

1. a MULTILAYER COMPOSITE precast concrete sound barrier panel, it is characterized in that: described sound barrier panel is followed successively by from inside to outside, by the puigging (1) of light high-strength haydite concreting, the noise reduction layer (2) of being built by pottery sand concrete, the sound absorbing layer (3) of being built by sand-free coarse porous concrete haydite concrete, the decorative layer (4) of being built by fibre-forming polymer mortar, the strength grade of concrete of described puigging (1) is more than C30, the thickness of described noise reduction layer (2) is 20mm, strength grade of concrete is C5, the thickness of described sound absorbing layer (3) is 50mm, strength grade of concrete is C15.
2. a kind of MULTILAYER COMPOSITE precast concrete sound barrier panel according to claim 1, is characterized in that: the thickness of described decorative layer (4) is 1-3mm.
3. a kind of MULTILAYER COMPOSITE precast concrete sound barrier panel according to claim 2, is characterized in that: the number of plies of described noise reduction layer (2) or described sound absorbing layer (3) is at least one deck.
4. a kind of MULTILAYER COMPOSITE precast concrete sound barrier panel according to claim 3, it is characterized in that: described sound absorbing layer (3) is for grid-like, and the shape of described decorative layer (4) and the shape of described sound absorbing layer (3) match.
CN201420053701.7U 2014-01-27 2014-01-27 A kind of MULTILAYER COMPOSITE precast concrete sound barrier panel Expired - Lifetime CN204151703U (en)

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CN201420053701.7U CN204151703U (en) 2014-01-27 2014-01-27 A kind of MULTILAYER COMPOSITE precast concrete sound barrier panel

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107326818A (en) * 2017-08-08 2017-11-07 正升环境科技股份有限公司 Integral type sound absorbing-insulating baffle
CN112608110A (en) * 2021-01-15 2021-04-06 中国铁路设计集团有限公司 Multi-layer-structure ceramsite sound absorption plate for sound barrier and preparation method thereof

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107326818A (en) * 2017-08-08 2017-11-07 正升环境科技股份有限公司 Integral type sound absorbing-insulating baffle
CN107326818B (en) * 2017-08-08 2023-09-19 正升环境科技股份有限公司 Integrated sound absorption and insulation barrier plate
CN112608110A (en) * 2021-01-15 2021-04-06 中国铁路设计集团有限公司 Multi-layer-structure ceramsite sound absorption plate for sound barrier and preparation method thereof
CN112608110B (en) * 2021-01-15 2021-09-21 中国铁路设计集团有限公司 Multi-layer-structure ceramsite sound absorption plate for sound barrier and preparation method thereof

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Granted publication date: 20150211

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