CN108275945A - A kind of acoustic barrier unit board and preparation method thereof and sound barrier - Google Patents
A kind of acoustic barrier unit board and preparation method thereof and sound barrier Download PDFInfo
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- CN108275945A CN108275945A CN201810118113.XA CN201810118113A CN108275945A CN 108275945 A CN108275945 A CN 108275945A CN 201810118113 A CN201810118113 A CN 201810118113A CN 108275945 A CN108275945 A CN 108275945A
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
- C04B28/04—Portland cements
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B38/00—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof
- C04B38/08—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof by adding porous substances
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
- E01F8/00—Arrangements for absorbing or reflecting air-transmitted noise from road or railway traffic
- E01F8/0005—Arrangements for absorbing or reflecting air-transmitted noise from road or railway traffic used in a wall type arrangement
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
- C04B2111/00612—Uses not provided for elsewhere in C04B2111/00 as one or more layers of a layered structure
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/50—Mortars, concrete or artificial stone characterised by specific physical values for the mechanical strength
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- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Structural Engineering (AREA)
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- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
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Abstract
The present invention provides a kind of acoustic barrier unit board, including main board layer and acoustic board layer, the main board layer is that integral type is connect with acoustic board layer, and the main board layer is prepared by active concrete, and the acoustic board layer is prepared by porous sound absorption concrete.Acoustic barrier unit board provided by the present invention has the excellent properties of high-strength durable, its compression strength is 155~162MPa, flexural strength is 23~25MPa, impervious rank reaches P10, freeze proof rank reaches F600, as electric flux method measure obtained by the resistance of chloride ion penetration of acoustic barrier unit board its electric conduction quantity≤40C；It is 50~60dB by sound barrier mean transmission loss prepared by acoustic barrier unit board provided by the present invention, illustrates that acoustic barrier unit board provided by the invention has excellent sound absorbing performance, soundproof effect good.
Description
Technical field
The present invention relates to sound barrier technical field more particularly to a kind of acoustic barrier unit board and preparation method thereof and sound-screens
Barrier.
Background technology
Sound barrier be inserted between sound source and recipient make Acoustic Wave Propagation there are one significant additional attenuation, to subtract
The facility of the influence of noise in certain area where weak recipient.Sound barrier is generally divided into three kinds, when traffic noise barrier,
The noise barrier second is that equipment noise decays, third, industrial factory's circle noise barrier.
With the fast development of China express railway, bullet train generates prodigious noise pollution when passing through residential block, sternly
Ghost image rings normal work and the rest of resident；When passing through nature reserve area, the noise of generation can frighten the animal of nature, break
Bad natural equilibrium.Therefore, it is an effective control measures to build traffic sound barrier.Currently, traffic sound barrier the most commonly used is
Metal sound barrier.Metal sound barrier is divided into as metal louvres, metallic screen mesh, metal backing formula etc..The structure of metal sound barrier
The structure of filling sound absorption cotton predominantly in interlayer of steel plate, cost is high, and sound absorbing performance is poor, and average sound transmission loss is 36dB, cannot
Effective sound insulation.
Invention content
The purpose of the present invention is to provide a kind of acoustic barrier unit board and preparation method thereof and sound barriers.It is provided by the present invention
Acoustic barrier unit board there is excellent sound absorbing performance, soundproof effect is good.
To achieve the above object, the present invention provides a kind of acoustic barrier unit board, including main board layer and acoustic board layer, institutes
It is that integral type is connect that main board layer, which is stated, with acoustic board layer, and the main board layer is prepared by active concrete, the acoustic board
Layer is prepared by porous sound absorption concrete.
Preferably, the active concrete includes the component of following mass parts：950~1100 parts of quartz sand, cement 730~
840 parts, 200~300 parts of silicon ash, 80~140 parts of flyash, 6~12 parts of vinal, 120~180 parts of steel fibre subtracts
130~190 parts of 40~70 parts of aqua and water.
Preferably, the active concrete includes the component of following mass parts：980~1000 parts of quartz sand, cement 760~
800 parts, 230~270 parts of silicon ash, 100~120 parts of flyash, 8~10 parts of vinal, 140~160 parts of steel fibre subtracts
150~170 parts of 50~60 parts of aqua and water.
Preferably, the porous sound absorption concrete includes the component of following mass parts：950~1100 parts of porous ceramic grain, water
730~840 parts of mud, 200~300 parts of silicon ash, 80~140 parts of flyash, 6~12 parts of vinal, steel fibre 120~
180 parts, 130~190 parts of 40~70 parts of water-reducing agent and water.
Preferably, the acoustic barrier unit board is arc.
The present invention also provides the preparation methods of the acoustic barrier unit board described in above-mentioned technical proposal, include the following steps：
The mold of acoustic barrier unit board is provided, the mold includes acoustic board layer segment and main board layer segment；
Porous sound absorption concrete is packed into the acoustic board layer segment of mold, then active concrete is packed into the main body of mold
Plate layer segment, successively through resting, temperature programming maintenance, demoulding and natural curing, obtain acoustic barrier unit board.
Preferably, described program heating maintenance includes the following steps：50 are warming up to the heating rate of 10~20 DEG C/h~
70 DEG C, then 3~5h of thermostatic curing is cooled to 15~50 DEG C with the rate of temperature fall of 10~20 DEG C/h.
Preferably, the time of the natural curing is 14~30d.
The present invention also provides a kind of sound barriers, including acoustic barrier unit board described at least one piece of above-mentioned technical proposal or
The acoustic barrier unit board that preparation method described in above-mentioned technical proposal obtains.
Preferably, the sound barrier is totally enclosed type.
The present invention provides a kind of acoustic barrier unit board, including main board layer and acoustic board layer, the main board layer and suction
Sound plate layer connects for integral type, and the main board layer is prepared by active concrete, and the acoustic board layer is mixed by porous sound absorption
Solidifying soil is prepared.The acoustic board layer knot that the main board layer that the present invention constitutes active concrete is constituted with porous sound absorption concrete
It closes, the main board layer that active concrete is constituted has the excellent properties of high-strength durable；And porous sound absorption concrete has due to inside
There are a large amount of pore structures, after sound wave enters, a part of sound wave can penetrate material internal, and another part sound wave is anti-in material surface
It penetrates, the sound wave for penetrating material internal is propagated in gap and pore structure, and the air movement in pore structure will produce viscous and friction
Effect, while temperature increases when air is compressed, temperature reduces when sparse, and material has heat-conduction effect, to make acoustic energy
It is gradually transformed into thermal energy to be consumed, plays sound absorption；Main board layer is bonded acoustic barrier unit board with acoustic board layer, makes sound
Barrier unit board has high-strength durable and excellent sound absorbing performance simultaneously.The experimental results showed that sound barrier provided by the present invention
It is 155~162MPa that cell board, which has the excellent properties of high-strength durable, compression strength, and flexural strength is 23~25MPa, impervious
Rank reaches P10, and freeze proof rank reaches F600, as electric flux method measure obtained by acoustic barrier unit board resistance of chloride ion penetration
Its electric conduction quantity≤40C；The sound barrier prepared by acoustic barrier unit board provided by the present invention is when acoustic frequency is 100Hz, sound absorption
Coefficient is 0.22；When acoustic frequency is 400Hz, acoustic absorptivity 0.84；When acoustic frequency is increased to 4000Hz, acoustic absorptivity is
0.99, mean transmission loss is 50~60dB, illustrates that acoustic barrier unit board provided by the invention has excellent sound absorbing performance, sound insulation
Effect is good.
Description of the drawings
The front view of Fig. 1 acoustic barrier unit boards provided by the present invention；
The upward view of Fig. 2 acoustic barrier unit boards provided by the present invention.
Specific implementation mode
The present invention provides a kind of acoustic barrier unit boards, include main board layer 1 and acoustic board layer 2, the master as shown in Figure 1
Body plate layer and acoustic board layer are that integral type is connect, and the main board layer is prepared by active concrete, the acoustic board layer by
Porous sound absorption concrete is prepared.The main board layer that active concrete is constituted has the excellent properties of high-strength durable；Porous suction
Sound concrete is since inside has a large amount of pore structures, and after sound wave enters, a part of sound wave can penetrate material internal, another part
Sound wave is reflected in material surface, and the sound wave for penetrating material internal is propagated in gap and pore structure, the air movement in pore structure
Viscous and rubbing action is will produce, while temperature increases when air is compressed, temperature reduces when sparse, and material has heat transfer
Effect is consumed to make acoustic energy be gradually transformed into thermal energy, plays sound absorption；Main board layer is bonded sound with acoustic board layer
Barrier unit board makes acoustic barrier unit board while having high-strength durable and excellent sound absorbing performance.
The present invention is not particularly limited the shape and size of the acoustic barrier unit board, and those skilled in the art can root
According to needing to select suitable shape and size.
In the present invention, the active concrete preferably includes the component of following mass parts：950~1100 parts of quartz sand,
730~840 parts of cement, 200~300 parts of silicon ash, 80~140 parts of flyash, 6~12 parts of vinal, steel fibre 120~
180 parts, 130~190 parts of 40~70 parts of water-reducing agent and water.
In the present invention, the active concrete includes the quartz sand of 950~1100 mass parts, and preferably 980~1000
Part.In the present invention, the quartz sand is the aggregate of sound absorption concrete, plays skeleton and supporting role.In the present invention, described
The average grain diameter of quartz sand is preferably 150 μm~500 μm.
In the present invention, on the basis of the mass fraction of quartz sand is 950~1100 parts, the activity concrete includes
The cement of 730~840 mass parts, preferably 760~800 parts.The present invention is not particularly limited the type of cement, using ability
The common cement in domain；In embodiments of the present invention, the cement is preferably Portland cement P.O52.5.
In the present invention, on the basis of the mass fraction of quartz sand is 950~1100 parts, the activity concrete includes
The silicon ash of 200~300 mass parts, preferably 230~270 parts.In the present invention, the silicon ash can significantly improve resistance to compression, resist
Folding, impervious, anti-corrosion, shock resistance and wear-resisting property, extend the service life of concrete, especially in villiaumite system erosion, sulfuric acid
Under the adverse circumstances such as salt corrosion, high humility, the durability of concrete can be made to double even several times, while can also effectively prevent mixing
Solidifying soil neutral and alkali substance reacts, and then ensures that product does not crack, and does not expand.
In the present invention, SiO in the silicon ash2Content be preferably 85~87wt.%；The specific surface area of the silicon ash is excellent
It is selected as >=15000m2/kg.In embodiments of the present invention, the silicon ash is the production of Shanghai Tian Kai silica flours Materials Co., Ltd
920D type silicon ashes.
In the present invention, on the basis of the mass fraction of quartz sand is 950~1100 parts, the activity concrete includes 80
The flyash of~140 mass parts, preferably 100~120 parts.In the present invention, the flyash can improve as admixture
Concrete workability, improves the durability and later strength of concrete, and the wearability of gained concrete component can also obtain significantly
It improves.
In the present invention, the flyash is preferably level-one flyash as defined in standard GB/T/T 1596-2017.This
Invention is not particularly limited the source of the flyash, and in embodiments of the present invention, the flyash is Hubei energy group
The level-one flyash of Ge Dian electricity generating corporation, Ltds production.
In the present invention, on the basis of the mass fraction of quartz sand is 950~1100 parts, the activity concrete includes 6
The vinal of~12 mass parts, preferably 8~10 parts.In the present invention, the vinal can improve mixed
Solidifying soil intensity, improves the anti-crack and anti-seepage performance of concrete.
In the present invention, the diameter of the vinal is preferably 35 μm；The length of the vinal is excellent
It is selected as 15~20mm.The present invention is not particularly limited the source of the vinal, using commercial polyethylene alcohol fiber
；In embodiments of the present invention, the vinal is the poly- second of Changzhou Tianyi Engineering Fiber Co., Ltd.'s production
Enol fiber.
In the present invention, on the basis of the mass fraction of quartz sand is 950~1100 parts, the activity concrete includes
The steel fibre of 120~180 mass parts, preferably 140~160 parts.In the present invention, the steel fibre can significantly improve coagulation
The shock resistance of soil, wear-resistant, antifatigue, resistance to performance of waiting so long effectively prevent the extension of inside concrete or face crack from extending
Effect.
In the present invention, the diameter that the steel fibre is preferably is preferably 0.18~0.22mm, and length is preferably 12~
14mm, tensile strength >=2850MPa.The present invention is not particularly limited the source of the steel fibre, is using commercially available steel fibre
It can；In embodiments of the present invention, the steel fibre is the steel fibre of Zhengzhou Yu Jian steel fibres Co., Ltd production.
In the present invention, on the basis of the mass fraction of quartz sand is 950~1100 parts, the activity concrete includes 40
The water-reducing agent of~70 mass parts, preferably 50~60 parts.In the present invention, the main function of the water-reducing agent is humidification,
Concrete durability is improved, concrete high-efficiency slow setting is made.In the present invention, the water-reducing agent is preferably High-efficiency polycarboxylic acid diminishing
Agent.In embodiments of the present invention, the water-reducing agent is the High-efficiency polycarboxylic acid diminishing of Hubei Huashuo Science Co., Ltd production
Agent.
In the present invention, on the basis of the mass fraction of quartz sand is 950~1100 parts, the activity concrete includes
The water of 130~190 mass parts, preferably 150~170 parts.
In the present invention, the preparation method of the active concrete preferably includes following steps：
(1) quartz sand, steel fibre and vinal are mixed, obtains the first mixture；By cement, silicon ash and fine coal
Ash mixing, obtains the second mixture；Water and water-reducing agent are mixed to get third mixture；First mixture, the second mixing
The restriction for preparing not time sequencing of object and third mixture；
(2) the first mixture and the second mixture are subjected to dry mixing, obtain dry mix；
(3) dry mix and third mixture are subjected to wet-mixing, obtain the durable active concrete of high-strength height.
The present invention first carries out after raw material grouping mixing dry mixing and carries out wet-mixing again, ensure that material is uniformly mixed, do not generate
Caking.
In the present invention, the rate of the dry mixing and wet-mixing is preferably independently 25~35r/min, more preferably 30r/
min；The time of the dry mixing and wet-mixing is preferably independently 4~10min.
In the present invention, the porous sound absorption concrete preferably includes the component of following mass parts：Porous ceramic grain 950~
1100 parts, 730~840 parts of cement, 200~300 parts of silicon ash, 80~140 parts of flyash, 6~12 parts of vinal, steel fibre
130~190 parts of 120~180 parts of dimension, 40~70 parts of water-reducing agent and water.In the present invention, the porous sound absorption concrete passes through more
The inside of hole haydite has a large amount of connection aperture, and sound absorbing performance is excellent, can convert part acoustic energy to thermal energy, consume, from
And play sound absorption.
In the present invention, the active concrete and the porous sound absorption concrete are the difference is that the sound absorption is mixed
The aggregate for coagulating soil is quartz sand, and the aggregate of the porous sound absorption concrete is porous ceramics, and similar composition can make main body
Plate layer and acoustic board layer are closely as one.
In the present invention, the porous sound absorption concrete includes the porous ceramic grain of 950~1100 mass parts, and preferably 980
~1000 parts.In the present invention, the porous ceramic grain is the aggregate of porous sound absorption concrete, plays skeleton and supporting role, together
When porous ceramic grain provide pore structure for porous sound absorption concrete, play main sound absorption.
In the present invention, the average grain diameter of the porous ceramic grain is preferably 5~10mm；The average pore size of the porous ceramic grain
Preferably 0.3~0.8mm.The present invention is not particularly limited the material of the porous ceramic grain and source, using commercially available porous pottery
Grain.In embodiments of the present invention, the porous ceramic grain is preferably the porous of Changsha Hua Wang building materials trade Co., Ltd production
Haydite.
In the present invention, in the porous sound absorption concrete, in addition to porous ceramic grain, the effect of other components in activity
Effect in concrete is identical, and details are not described herein.
In the present invention, on the basis of the mass fraction of porous ceramic grain is 950~1100 parts, the porous sound absorption concrete
Include the cement of 730~840 mass parts, preferably 760~800 parts.
In the present invention, on the basis of the mass fraction of porous ceramic grain is 950~1100 parts, the porous sound absorption concrete
Include the silicon ash of 200~300 mass parts, preferably 230~270 parts.In embodiments of the present invention, the selection of the silicon ash and come
Silicon ash in active concrete is identical, and details are not described herein.
In the present invention, on the basis of the mass fraction of porous ceramic grain is 950~1100 parts, the porous sound absorption concrete
Include the flyash of 80~140 mass parts, preferably 100~120 parts.In the present invention, in the porous sound absorption concrete
The selection of flyash and source are identical as the flyash in active concrete, and details are not described herein.
In the present invention, on the basis of the mass fraction of porous ceramic grain is 950~1100 parts, the porous sound absorption concrete
Include the vinal of 6~12 mass parts, preferably 8~10 parts.In the present invention, the porous sound absorption concrete is to powder
Requirement of the requirement of coal ash with the active concrete to flyash is identical, and details are not described herein.
In the present invention, on the basis of the mass fraction of porous ceramic grain is 950~1100 parts, the porous sound absorption concrete
Include the steel fibre of 120~180 mass parts, preferably 140~160 parts.In the present invention, the porous sound absorption concrete is to steel
Requirement of the requirement of fiber with the active concrete to steel fibre is identical, and details are not described herein.
In the present invention, on the basis of the mass fraction of porous ceramic grain is 950~1100 parts, the porous sound absorption concrete
Include the water-reducing agent of 40~70 mass parts, preferably 50~60 parts.In the present invention, the porous sound absorption concrete is to water-reducing agent
Requirement of the requirement with the active concrete to water-reducing agent it is identical, details are not described herein.
In the present invention, on the basis of the mass fraction of porous ceramic grain is 950~1100 parts, the porous sound absorption concrete
Include the water of 130~190 mass parts, preferably 150~170 parts.
In the present invention, the preparation method phase of the preparation method of the porous sound absorption concrete and the active concrete
Together, quartz sand is replaced with into porous ceramic grain, details are not described herein.
In the present invention, the acoustic barrier unit board is preferably arc.In the present invention, the acoustic barrier unit board is kept
Certain radian is conducive to the absorption of noise.
In the present invention, when the acoustic barrier unit board is arc, the acoustic board layer is preferably placed at the main board layer
Concave side；The width of the acoustic board layer is preferably smaller than the width of the main board layer, therefore acoustic board in front elevational view in fig. 1
The edge line of layer, which is adopted, to be represented by dashed line；The upward view of the acoustic barrier unit board in the embodiment of the present invention is illustrated in figure 2, in figure
External solid line is the edge line of the main board layer, and the inside solid line in figure is the edge line of the acoustic board layer, due to sound absorption
Plate layer is consistent with the arc length of main board layer, therefore the edge line of the left and right sides overlaps in fig. 2.
The present invention is not particularly limited the radian and size of the acoustic barrier unit board, and those skilled in the art can root
According to need carry out general adjustment.
In embodiments of the present invention, the thickness of the main board layer is preferably 5cm, and arc length is preferably 2.5m, and width is excellent
It is selected as 1.4m, radian is preferably 0.4；The thickness of the acoustic board layer is preferably 2.5cm, and arc length is preferably 2.5m, and width is excellent
It is selected as 1.2m.
The present invention also provides the preparation methods of the acoustic barrier unit board described in above-mentioned technical proposal, include the following steps：
The mold of acoustic barrier unit board is provided, the mold includes acoustic board layer segment and main board layer segment；
Porous sound absorption concrete is packed into the acoustic board layer segment of mold, then active concrete is packed into the main body of mold
Plate layer segment, successively through resting, temperature programming maintenance, demoulding and natural curing, obtain acoustic barrier unit board.
Present invention firstly provides the mold of acoustic barrier unit board, the mold includes acoustic board layer segment and main board layer portion
Point.The present invention is not particularly limited the concrete shape and size of the mold, those skilled in the art can as needed into
Row selection.
After obtaining mold, the present invention preferably coats releasing agent to mould inside.In the present invention, the releasing agent is preferably
Aqueous or wax releasing agent.The present invention is not particularly limited described aqueous or wax releasing agent specific type, using ability
The common aqueous or wax releasing agent of field technique personnel.
After the coating for completing releasing agent, celluar concrete is packed into the acoustic board layer segment of mold by the present invention, then will be lived
Property concrete be packed into mold main body plate part, obtain preforming acoustic barrier unit board.
The present invention preferably vibrates the preforming acoustic barrier unit board for holding in a mold, obtains molding sound barrier list
First plate.In the present invention, the gas inside preforming acoustic barrier unit board can be excluded by vibration, plays the work of compacting
With.In the present invention, the frequency of the vibration is preferably 160~200HZ, more preferably 180~190HZ；The vibration when
Between preferably 90~120s.
Obtain molding acoustic barrier unit board after, the present invention by the molding acoustic barrier unit board successively through resting, program liter
Temperature maintenance, demoulding and natural curing, obtain acoustic barrier unit board.
In the present invention, described rest preferably is placed at room temperature for；The time rested is preferably 1~2h.In the present invention
In, molding acoustic barrier unit board can tentatively be hardened by resting.
In the present invention, described program heating maintenance preferably includes following steps：With the heating rate liter of 10~20 DEG C/h
For temperature to 50~70 DEG C, then 3~5h of thermostatic curing is cooled to 15~50 DEG C with the rate of temperature fall of 10~20 DEG C/h.In the present invention
In, above-mentioned heating and the control of rate of temperature fall can be prevented into crackle, thermostatic curing is carried out at 50~70 DEG C, molding can be made
Acoustic barrier unit board further hardens.
In the present invention, the temperature of the molding acoustic barrier unit board after the cooling is more preferably the difference with environment temperature
≤ 15 DEG C of temperature.
In the present invention, the compression strength of molding acoustic barrier unit board obtained by described program heating and oxidation be preferably 40~
45MPa。
The present invention is not particularly limited the mode of the demoulding, and the release method using those skilled in the art's routine is
It can.
In the present invention, the time of the natural curing is preferably 14~30d, more preferably 20~28d.
The present invention also provides a kind of sound barriers, including acoustic barrier unit board described at least one piece of above-mentioned technical proposal or
The acoustic barrier unit board that preparation method described in above-mentioned technical proposal obtains.
In the present invention, the sound barrier be preferably by described in above-mentioned technical proposal acoustic barrier unit board or above-mentioned technology
The acoustic barrier unit board and girder steel that preparation method described in scheme obtains are built.
In the present invention, the sound barrier is preferably totally enclosed type.In embodiments of the present invention, the sound barrier is preferably
Arch totally enclosed type sound barrier.The present invention is not particularly limited the radian of the arch, and those skilled in the art can basis
It needs to carry out general adjustment.
The present invention is not particularly limited the building method of the sound barrier, building method well known to those skilled in the art
.
In embodiments of the present invention, the building method of the fully closed sound barrier of the arch preferably includes following steps：
The interval of girder steel is set according to the width of acoustic barrier unit board, and builds arch steel girder frame, it is ensured that sound barrier list
Width between first plate and girder steel agrees with, and ensures that the mounting and adjusting space of 3~4cm, level height difference ensure within 1cm；
Acoustic barrier unit board is successively spliced in the arch steel girder frame, the splicing of the acoustic barrier unit board uses
The form of bell and spigot forms totally enclosed type sound-screen when, there are when gap, being sealed by two-component polysulfide sealant between girder steel
Barrier.
Below in conjunction with the embodiment in the present invention, the technical solution in the present invention is clearly and completely described.It is aobvious
So, described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Based on the reality in the present invention
Example is applied, every other embodiment obtained by those of ordinary skill in the art without making creative efforts all belongs to
In the scope of protection of the invention.
Embodiment 1
1, the preparation of active concrete
(1) in parts by mass, 953 parts of quartz sands, 156.7 parts of steel fibres and 6.7 parts of vinals are mixed, is obtained
First mixture；733 parts of cement, 250 parts of silicon ashes and 83 parts of flyash are mixed, the second mixture is obtained；By 183 parts of water and 50
Part water-reducing agent is mixed to get third mixture；First mixture, the second mixture and when preparing no of third mixture
Between sequence restriction；
(2) by the first mixture and the second mixture under the speed of agitator of 30r/min dry mixing 5min, obtain dry mixing mixing
Object；
(3) by dry mix and third mixture wet-mixing 4min under the speed of agitator of 30r/min, active coagulation is obtained
Soil.
2, the preparation of porous sound absorption concrete
According to mass parts meter, weigh respectively 953 parts of porous ceramic grains, 156.7 parts of steel fibres, 6.7 parts of vinals,
733 parts of cement, 250 parts of silicon ashes, 83 parts of flyash, 183 parts of water and 50 parts of water-reducing agents；
According to the preparation method described in step 1, above-mentioned raw materials are grouped mixing (porous ceramic grain replacement quartz sand), are passed through successively
Dry mixing, wet-mixing obtain porous sound absorption concrete.
3, the preparation of acoustic barrier unit board
The mold of acoustic barrier unit board as shown in Figure 1 can be molded by providing, and coat releasing agent；The main board layer
Thickness is 5cm, arc length 2.5m, width 1.4m, radian 0.4；The thickness of the acoustic board layer is 2.5cm, and arc length is
2.5m, width 1.2m；
Porous sound absorption concrete is packed into the acoustic board layer segment of mold, then the concrete that absorbs sound is packed into the main body of mold
Plate layer segment vibrates 120s at 180HZ, obtains molding acoustic barrier unit board；
The molding acoustic barrier unit board is rested 1h in room temperature；It is warming up to the heating rate of 20 DEG C/h after resting
60 DEG C, then thermostatic curing 4h is cooled to environment temperature with the rate of temperature fall of 17 DEG C/h, and obtaining compression strength through demoulding is
The molding acoustic barrier unit board of the hardening of 40MPa；
By the molding acoustic barrier unit board natural curing 28d of the hardening, acoustic barrier unit board finished product is obtained.
As test block method (GB/T 50081) measure obtained by acoustic barrier unit board compression strength be 155Mpa；
As test block method (GB/T 50081) measure obtained by acoustic barrier unit board flexural strength be 23Mpa；
As test block method (GB/T 50082) measure obtained by acoustic barrier unit board impervious rank be P10；
As freeze soon method (GB/T 50082) measure obtained by acoustic barrier unit board frost resistance rank be F600；
As electric flux method (GB/T 50082) measure obtained by the resistance of chloride ion penetration of acoustic barrier unit board its electric conduction quantity
≤40C。
4, the preparation of totally enclosed type sound barrier
The interval of girder steel is first set according to the width of acoustic barrier unit board, and builds arch steel girder frame, it is ensured that sound barrier
Cell board and the width of girder steel quality inspection agree with, at least ensure 3~4cm mounting and adjusting space, level height difference ensure 1cm with
It is interior；
Acoustic barrier unit board is successively spliced in arch steel girder frame, the splicing of the acoustic barrier unit board uses socket joint
The form of mouth forms totally enclosed type sound barrier when, there are when gap, being sealed by two-component polysulfide sealant between girder steel.
It uses standard No. to carry out volume decibel on the spot for the standard for acoustic environmental quality of GB3096-2008 to detect to obtain this implementation
The sound transmission loss for the sound barrier that example is provided is 55dB.
Sound barrier that the present embodiment is provided is measured in each acoustic frequency using the installation of J classes, well method (GB/T20247-2006)
Acoustic absorptivity, the results are shown in Table 1.
Acoustic absorptivity of the sound barrier that 1 the present embodiment of table is provided in each acoustic frequency
The acoustic absorptivity standard value of 100~125Hz is that German Standard wants the minimum acoustic absorptivity of sound-absorbing material in table 1
It asks, 250~4000Hz is minimum acoustic absorptivity requirements of the standard GB/T/T20247-2006 to sound-absorbing material.It can be with by table 1
Find out that the acoustic absorptivity of the sound barrier is all higher than standard value in each frequency band, therefore all has in each frequency band excellent sound absorption properties
Energy.
Embodiment 2
1, the preparation of active concrete
(1) in parts by mass, 1000 parts of quartz sands, 120 parts of steel fibres and 9 parts of vinals are mixed, obtains the
One mixture；780 parts of cement, 200 parts of silicon ashes and 100 parts of flyash are mixed, the second mixture is obtained；By 160 parts of water and 70
Part water-reducing agent is mixed to get third mixture；First mixture, the second mixture and when preparing no of third mixture
Between sequence restriction；
(2) by the first mixture and the second mixture under the speed of agitator of 30r/min dry mixing 5min, obtain dry mixing mixing
Object；
(3) by dry mix and third mixture wet-mixing 4min under the speed of agitator of 30r/min, active coagulation is obtained
Soil.
2, the preparation of porous sound absorption concrete
According to mass parts meter, 1100 parts of porous ceramic grains, 180 parts of steel fibres, 12 parts of vinals, 770 are weighed respectively
Part cement, 270 parts of silicon ashes, 100 parts of flyash, 130 parts of water and 70 parts of water-reducing agents；
According to the preparation method described in step 1, above-mentioned raw materials are grouped mixing (porous ceramic grain replacement quartz sand), are passed through successively
Dry mixing, wet-mixing obtain porous sound absorption concrete.
3, the preparation of acoustic barrier unit board
The mold of acoustic barrier unit board as shown in Figure 1 can be molded by providing, and coat releasing agent；The main board layer
Thickness is 5cm, arc length 2.5m, width 1.4cm, radian 0.4；The thickness of the acoustic board layer is 2.5cm, and arc length is
2.5m, width 1.2m；
Porous sound absorption concrete is packed into the acoustic board layer segment of mold, then active concrete is packed into the main body of mold
Plate layer segment vibrates 120s at 200HZ, obtains molding acoustic barrier unit board；
The molding acoustic barrier unit board is rested 1h in room temperature；It is warming up to the heating rate of 15 DEG C/h after resting
70 DEG C, then thermostatic curing 3h is cooled to environment temperature with the rate of temperature fall of 20 DEG C/h, and obtaining compression strength through demoulding is
The molding acoustic barrier unit board of the hardening of 40MPa；
By the molding acoustic barrier unit board natural curing 14d of the hardening, acoustic barrier unit board finished product is obtained.
As test block method (GB/T 50081) measure obtained by acoustic barrier unit board compression strength be 162MPa；
As test block method (GB/T 50081) measure obtained by acoustic barrier unit board flexural strength be 24MPa；
As test block method (GB/T 50082) measure obtained by acoustic barrier unit board impervious rank be P10；
As freeze soon method (GB/T 50082) measure obtained by acoustic barrier unit board frost resistance rank be F600；
As electric flux method (GB/T 50082) measure obtained by the resistance of chloride ion penetration of acoustic barrier unit board its electric conduction quantity
≤40C。
4, the preparation of totally enclosed type sound barrier
The interval of girder steel is first set according to the width of acoustic barrier unit board, and takes arch and builds steel girder frame, it is ensured that sound barrier
Cell board and the width of girder steel quality inspection agree with, at least ensure 3~4cm mounting and adjusting space, level height difference ensure 1cm with
It is interior；
Acoustic barrier unit board is successively spliced in arch steel girder frame, the splicing of the acoustic barrier unit board uses socket joint
The form of mouth forms totally enclosed type sound barrier when, there are when gap, being sealed by two-component polysulfide sealant between girder steel.
It uses standard No. to carry out volume decibel on the spot for the standard for acoustic environmental quality of GB3096-2008 to detect to obtain this implementation
The sound transmission loss for the sound barrier that example is provided is 53dB.
Sound barrier that the present embodiment is provided is measured in each acoustic frequency using the installation of J classes, well method (GB/T20247-2006)
Acoustic absorptivity, the results are shown in Table 2,
Acoustic absorptivity of the sound barrier that 2 the present embodiment of table is provided in each acoustic frequency
The acoustic absorptivity of the sound barrier is all higher than standard value in each frequency band as can be seen from Table 2, therefore in each frequency band
All has excellent sound absorbing performance.
Embodiment 3
1, the preparation of active concrete
(1) in parts by mass, 1100 parts of quartz sands, 180 parts of steel fibres and 12 parts of vinals are mixed, obtains the
One mixture；840 parts of cement, 300 parts of silicon ashes and 140 parts of flyash are mixed, the second mixture is obtained；By 190 parts of water and 40
Part water-reducing agent is mixed to get third mixture；First mixture, the second mixture and when preparing no of third mixture
Between sequence restriction；
(2) by the first mixture and the second mixture under the speed of agitator of 30r/min dry mixing 5min, obtain dry mixing mixing
Object；
(3) by dry mix and third mixture wet-mixing 4min under the speed of agitator of 30r/min, active coagulation is obtained
Soil.
2, the preparation of porous sound absorption concrete
According to mass parts meter, 1000 parts of porous ceramic grains, 120 parts of steel fibres, 10 parts of vinals, 840 are weighed respectively
Part cement, 300 parts of silicon ashes, 140 parts of flyash, 190 parts of water and 40 parts of water-reducing agents；
According to the preparation method described in step 1, above-mentioned raw materials are grouped mixing (porous ceramic grain replacement quartz sand), are passed through successively
Dry mixing, wet-mixing obtain porous sound absorption concrete.
3, the preparation of acoustic barrier unit board
The mold of acoustic barrier unit board as shown in Figure 1 can be molded by providing, and coat releasing agent；The thickness of the main board
Degree is 5cm, arc length 2.5m, width 1.4cm, radian 0.4；The thickness of the acoustic board layer is 2.5cm, and arc length is
2.5m, width 1.2m；
Porous sound absorption concrete is packed into the acoustic board layer segment of mold, then active concrete is packed into the main body of mold
Plate layer segment vibrates 120s (time that please supplement vibration) at 180HZ, obtains molding acoustic barrier unit board；
The molding acoustic barrier unit board is rested 1h in room temperature；It is warming up to the heating rate of 14 DEG C/h after resting
50 DEG C, then thermostatic curing 5h is cooled to environment temperature with the rate of temperature fall of 16 DEG C/h, and obtaining compression strength through demoulding is
The molding acoustic barrier unit board of the hardening of 40MPa；
By the molding acoustic barrier unit board natural curing 30d of the hardening, acoustic barrier unit board finished product is obtained.
As test block method (GB/T 50081) measure obtained by acoustic barrier unit board compression strength be 162MPa；
As test block method (GB/T 50081) measure obtained by acoustic barrier unit board flexural strength be 24MPa；
As test block method (GB/T 50082) measure obtained by acoustic barrier unit board impervious rank be P10；
As freeze soon method (GB/T 50082) measure obtained by acoustic barrier unit board frost resistance rank be F600；
As electric flux method (GB/T 50082) measure obtained by the resistance of chloride ion penetration of acoustic barrier unit board its electric conduction quantity
≤40C。
4, the preparation of totally enclosed type sound barrier
The interval of girder steel is first set according to the width of acoustic barrier unit board, and builds arch steel girder frame, it is ensured that sound barrier
Cell board and the width of girder steel quality inspection agree with, at least ensure 3~4cm mounting and adjusting space, level height difference ensure 1cm with
It is interior；
Acoustic barrier unit board is successively spliced in arch steel girder frame, the splicing of the acoustic barrier unit board uses socket joint
The form of mouth forms totally enclosed type sound barrier when, there are when gap, being sealed by two-component polysulfide sealant between girder steel.
It uses standard No. to carry out volume decibel on the spot for the standard for acoustic environmental quality of GB3096-2008 to detect to obtain this implementation
The sound transmission loss for the sound barrier that example is provided is 56dB.
Sound barrier that the present embodiment is provided is measured in each acoustic frequency using J classes, installation well method (GB/T20247-2006)
Acoustic absorptivity, the results are shown in Table 3,
Acoustic absorptivity of the sound barrier that 3 the present embodiment of table is provided in each acoustic frequency
The acoustic absorptivity of the sound barrier is all higher than standard value in each frequency band as can be seen from Table 3, therefore in each frequency band
All has excellent sound absorbing performance.
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications are also answered
It is considered as protection scope of the present invention.
Claims (10)
1. a kind of acoustic barrier unit board, including main board layer and acoustic board layer, the main board layer is integral type with acoustic board layer
Connection, the main board layer are prepared by active concrete, and the acoustic board layer is prepared by porous sound absorption concrete.
2. acoustic barrier unit board according to claim 1, which is characterized in that the activity concrete includes following mass parts
Component：950~1100 parts of quartz sand, 730~840 parts of cement, 200~300 parts of silicon ash, 80~140 parts of flyash, polyethylene
130~190 parts of 6~12 parts of alcohol fiber, 120~180 parts of steel fibre, 40~70 parts of water-reducing agent and water.
3. acoustic barrier unit board according to claim 2, which is characterized in that the activity concrete includes following mass parts
Component：980~1000 parts of quartz sand, 760~800 parts of cement, 230~270 parts of silicon ash, 100~120 parts of flyash, poly- second
150~170 parts of 8~10 parts of enol fiber, 140~160 parts of steel fibre, 50~60 parts of water-reducing agent and water.
4. acoustic barrier unit board according to claim 1, which is characterized in that the porous sound absorption concrete includes following matter
Measure the component of part：950~1100 parts of porous ceramic grain, 730~840 parts of cement, 200~300 parts of silicon ash, 80~140 parts of flyash,
130~190 parts of 6~12 parts of vinal, 120~180 parts of steel fibre, 40~70 parts of water-reducing agent and water.
5. according to Claims 1 to 4 any one of them acoustic barrier unit board, which is characterized in that the acoustic barrier unit board is
Arc.
6. a kind of preparation method of Claims 1 to 5 any one of them acoustic barrier unit board, includes the following steps：
The mold of acoustic barrier unit board is provided, the mold includes acoustic board layer segment and main board layer segment；
Porous sound absorption concrete is packed into the acoustic board layer segment of mold, then active concrete is packed into the main board layer of mold
Part, successively through resting, temperature programming maintenance, demoulding and natural curing, obtain acoustic barrier unit board.
7. the preparation method of acoustic barrier unit board according to claim 6, which is characterized in that described program heating maintenance packet
Include following steps：Be warming up to 50~70 DEG C, 3~5h of thermostatic curing with the heating rate of 10~20 DEG C/h, then with 10~20 DEG C/
The rate of temperature fall of h is cooled to 15~50 DEG C.
8. the preparation method of acoustic barrier unit board according to claim 6, which is characterized in that the time of the natural curing
For 14~30d.
9. a kind of sound barrier, including at least one piece of Claims 1 to 5 any one of them acoustic barrier unit board or claim 6
The acoustic barrier unit board that any one of~8 preparation methods obtain.
10. sound barrier according to claim 9, which is characterized in that the sound barrier is totally enclosed type.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109279838A (en) * | 2018-09-28 | 2019-01-29 | 江苏新光环保工程有限公司 | A kind of microparticle noise reducing plate |
| CN110510957A (en) * | 2019-09-26 | 2019-11-29 | 北京建筑材料科学研究总院有限公司 | A kind of v-ti magnetite tailing sound insulation and noise reduction fiberboard and preparation method thereof |
| CN111995324A (en) * | 2020-08-28 | 2020-11-27 | 南京好声音环保工程有限公司 | Non-metal light sound absorption and insulation board |
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| CN106116324A (en) * | 2016-06-16 | 2016-11-16 | 江苏新光环保工程有限公司 | A kind of glass microballoon lightweight sound barrier and preparation method thereof |
| CN106800399A (en) * | 2017-03-17 | 2017-06-06 | 中铁第四勘察设计院集团有限公司 | Modified ECC concrete sound barrier panels of a kind of high-strength and high-ductility low viscosity and preparation method thereof |
| CN107268468A (en) * | 2017-06-12 | 2017-10-20 | 山西省交通科学研究院 | A kind of polymer matrix haydite particulate sound barrier based on haydite re-treating process |
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| CN102926335A (en) * | 2011-08-09 | 2013-02-13 | 秦皇岛耀华新材料有限公司 | Composite noise reduction barrier |
| CN106116324A (en) * | 2016-06-16 | 2016-11-16 | 江苏新光环保工程有限公司 | A kind of glass microballoon lightweight sound barrier and preparation method thereof |
| CN106800399A (en) * | 2017-03-17 | 2017-06-06 | 中铁第四勘察设计院集团有限公司 | Modified ECC concrete sound barrier panels of a kind of high-strength and high-ductility low viscosity and preparation method thereof |
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| CN110510957A (en) * | 2019-09-26 | 2019-11-29 | 北京建筑材料科学研究总院有限公司 | A kind of v-ti magnetite tailing sound insulation and noise reduction fiberboard and preparation method thereof |
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| CN111995324A (en) * | 2020-08-28 | 2020-11-27 | 南京好声音环保工程有限公司 | Non-metal light sound absorption and insulation board |
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