CN111379229A - Integrated inorganic non-metallic sound barrier and preparation method thereof - Google Patents
Integrated inorganic non-metallic sound barrier and preparation method thereof Download PDFInfo
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- CN111379229A CN111379229A CN202010408376.1A CN202010408376A CN111379229A CN 111379229 A CN111379229 A CN 111379229A CN 202010408376 A CN202010408376 A CN 202010408376A CN 111379229 A CN111379229 A CN 111379229A
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Images
Classifications
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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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B1/00—Producing shaped prefabricated articles from the material
- B28B1/08—Producing shaped prefabricated articles from the material by vibrating or jolting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B11/00—Apparatus or processes for treating or working the shaped or preshaped articles
- B28B11/08—Apparatus or processes for treating or working the shaped or preshaped articles for reshaping the surface, e.g. smoothing, roughening, corrugating, making screw-threads
- B28B11/0863—Apparatus or processes for treating or working the shaped or preshaped articles for reshaping the surface, e.g. smoothing, roughening, corrugating, making screw-threads for profiling, e.g. making grooves
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B11/00—Apparatus or processes for treating or working the shaped or preshaped articles
- B28B11/24—Apparatus or processes for treating or working the shaped or preshaped articles for curing, setting or hardening
- B28B11/245—Curing concrete articles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B3/00—Producing shaped articles from the material by using presses; Presses specially adapted therefor
- B28B3/02—Producing shaped articles from the material by using presses; Presses specially adapted therefor wherein a ram exerts pressure on the material in a moulding space; Ram heads of special form
- B28B3/022—Producing shaped articles from the material by using presses; Presses specially adapted therefor wherein a ram exerts pressure on the material in a moulding space; Ram heads of special form combined with vibrating or jolting
-
- 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
-
- 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
- E01F8/0017—Plate-like elements
-
- 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
- C04B2111/52—Sound-insulating materials
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Chemistry (AREA)
- Devices Affording Protection Of Roads Or Walls For Sound Insulation (AREA)
Abstract
The application provides an integrated inorganic non-metallic sound barrier and a preparation method thereof, and relates to the technical field of noise pollution prevention and control equipment, which comprises a unit plate, wherein the unit plate comprises a back plate and stand columns, the stand columns are at least two and are uniformly arranged on the back plate, a sound absorption plate is arranged between every two adjacent stand columns, the sound absorption plate is connected with the back plate and the stand columns by a wet method, the sound absorption plate is arranged between the two stand columns, the unit plate is connected with the sound absorption plate by the wet method, the connection is stable and reliable, external connecting components and glue are reduced, the process links of production and assembly of the sound barrier are reduced, the production efficiency is improved, metal components are avoided being adopted, and therefore, the periodic maintenance is not needed, the maintenance cost is reduced, and the environmental pollution is reduced.
Description
Technical Field
The application relates to the technical field of noise pollution prevention and control equipment, in particular to an integrated inorganic non-metallic sound barrier and a preparation method thereof.
Background
The sound barrier is used for absorbing and isolating the direct sound transmission of a noise source, and a sound absorption and insulation shielding system is arranged between the noise source and a receiver, so that the receiver is placed in an acoustic shadow area, and the sound barrier has a good isolation effect on the transmission of the noise in the acoustic shadow area. The rapid development of the existing high-speed railway generates a large amount of noise pollution, the occupied area of the sound barrier is small, the manufacturing and the installation are convenient and rapid, the engineering investment is appropriate, and the sound barrier becomes an important measure for controlling the traffic noise pollution.
In the process of sound wave propagation, three phenomena of reflection, projection and diffraction occur when meeting the sound barrier. It is generally believed that the sound barrier can block the propagation of direct sound and provide sufficient attenuation of the total radiated sound with negligible impact of the projected sound. Therefore, the sound absorption and insulation effect of the sound barrier can be generally expressed by the noise reduction amount, which reflects the two shielding and sound transmission capabilities of the sound barrier. An acoustic barrier is inserted between the sound source and the receiving point, and is infinitely long, so that sound waves can only be diffracted from the upper part of the barrier to form an acoustic shadow area behind the barrier, just like light is shielded by an object to form a shadow. In this shadow region, one may perceive that the noise is significantly reduced, which is the noise reduction effect of the sound barrier.
At present, for a sound barrier, a product in the industry is generally a plug-in plate type sound barrier, the plug-in plate type sound barrier needs to support and fix the sound barrier by adopting an H-shaped galvanized steel upright post, the product has serious pollution to the environment in the production and preparation process, the production cost is high, the purchase cost is high, a mechanical component and a sound absorption component are fixed by adopting a mechanical connection mode in the sound barrier, the mechanical component and the sound absorption component need to be maintained regularly, and the durability is not long.
Content of application
A first object of the present application is to provide an integrated inorganic non-metallic sound barrier, which can achieve the technical effects of maintenance-free and high reliability.
The second objective of the present application is to provide a method for manufacturing an integrated inorganic non-metallic sound barrier, which can rapidly and stably produce the integrated inorganic non-metallic sound barrier, and is suitable for industrial production.
The embodiment of the application is realized by the following technical scheme:
the utility model provides an inorganic non-metallic sound barrier of integration, includes the cell board, the cell board includes backplate and stand, the stand is two at least and evenly sets up on the backplate, adjacent two be provided with the acoustic baffle between the stand, adopt the wet process to be connected between acoustic baffle and backplate, the stand.
Furthermore, the cell board also comprises an inserting board arranged at one end of the back board.
Furthermore, the width of one side of the upright column close to the back plate is smaller than that of the other side; and the surface of one side of the upright post, which is far away from the back plate, is flush with the surface of the sound absorption plate.
Furthermore, a male tenon and a female tenon are respectively arranged on two upright posts on the outermost side of the back plate.
Furthermore, the back plate and the upright post are integrally formed by casting high-strength concrete.
A preparation method of the integrated inorganic non-metallic sound barrier comprises the following steps:
s1, preparing a sound absorption plate; the sound absorption board comprises the following components in parts by weight: 25-35 parts of cement, 60-80 parts of ceramsite, 0.5-2 parts of latex powder, 0.5-2 parts of high-performance water reducing agent and 10-20 parts of water;
s1.1, carrying out water immersion treatment on the ceramsite;
s1.2, mixing the soaked ceramsite with cement and latex powder, and performing dry mixing;
s1.3, mixing the high-performance water reducing agent and water, adding the materials subjected to dry mixing in the step S2, and mixing and stirring to prepare a mixture;
s1.4, adding the mixture into a mold, and filling the mixture in the mold to be smooth;
s1.5, demolding and maintaining after pressure vibration forming to obtain the sound absorption board;
s2, preparing a sound barrier;
s2.1, cleaning the mold, brushing a release agent, and meanwhile, arranging reinforcing steel bars in the mold;
s2.2, placing the sound absorption plate into a mold and positioning;
s2.3, preparing slurry and injecting the slurry into a mold;
s2.4, performing vibration molding and then performing surface folding or embossing;
s2.5, standing for 8 hours, and then performing steam curing for 24 hours;
and S2.6, finally demoulding, and watering and maintaining to obtain the sound barrier.
Further, the components of the slurry comprise, by weight: 450 parts of cement, 85 parts of fly ash, 25 parts of silica fume, 870 parts of gravel, 870 parts of sand, 45 parts of water reducing agent and 160 parts of water.
Further, in step S2.5, the mixture is placed for 8 hours and is accompanied with a temperature rise operation, the temperature rise speed is not more than 12 ℃/h, and when the temperature rises to 80 ℃, the temperature is kept for 24 hours and steam curing is carried out.
Further, before the sound-absorbing panel is placed in the mold, a rubber sheet or a plastic film is attached to the outside of the sound-absorbing panel.
The technical scheme of the embodiment of the application has at least the following advantages and beneficial effects:
the application provides an inorganic non-metallic sound barrier of integration, it is through setting up the acoustic baffle between two stands to be connected through the wet process between cell board and the acoustic baffle, it is firm reliable to connect, external connection component and glue have been reduced, the process link of sound barrier production and assembly has been reduced, production efficiency improves, avoid adopting the metal component simultaneously, consequently need not the periodic maintenance, reduce the maintenance cost, reduce environmental pollution.
The preparation method of the integrated inorganic non-metallic sound barrier can be used for quickly and stably producing the integrated inorganic non-metallic sound barrier, is low in investment cost and is suitable for industrial production.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained from the drawings without inventive effort.
FIG. 1 is a schematic cross-sectional view of an integrated inorganic non-metallic sound barrier of the present application;
fig. 2 is a front view of the integrated inorganic non-metallic sound barrier of the present application.
Icon: 100-unit plate, 110-back plate, 120-upright post, 130-inserting plate, 121-female tenon, 122-male tenon and 123-hoisting hole.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present application, presented in the accompanying drawings, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present application, it should also be noted that, unless otherwise explicitly stated or limited, the terms "disposed," "mounted," "connected," and "connected" should be interpreted broadly, e.g., as being fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.
An integrated inorganic non-metallic sound barrier comprises unit boards, wherein each unit board comprises a back board and stand columns, the stand columns are three and are evenly arranged on the back board, the stand columns with other quantities can also be adopted, the implementation of the integrated inorganic non-metallic sound barrier is not influenced, sound absorbing boards are arranged between every two adjacent stand columns, the sound absorbing boards are connected with the back board and the stand columns by a wet method, each unit board further comprises a plug board arranged at one end of the back board, the plug boards are inserted into slots reserved in a construction site during installation and are fixed by concrete without adopting metal components, the width of one side, close to the back board, of each stand column is smaller than that of the other side, an installation space with the inside and the outside is formed between the two stand columns, the sound absorbing boards cannot fall off when being installed between the two stand columns, the stability of the sound barrier is improved, the surface, far away from one, flush the surface setting of stand and acoustic baffle, realize the accurate location of acoustic baffle, also make whole sound barrier more pleasing to the eye, be provided with public tenon and female tenon on two stands of backplate outside respectively, through set up public tenon and female tenon on two stands of backplate outside respectively, realize the concatenation between two sound barriers for it is inseparabler to connect between two sound barriers, avoids the noise to reveal, improves the syllable-dividing effect, backplate and stand integrated casting mould are with stand and backplate one shot casting mould, save being connected between stand and the backplate, avoid adopting the metal connecting component, reduce cost and assembly process improve production efficiency, the material of backplate and stand is high strength concrete and makes.
The specific implementation process is as follows: the sound absorption plate is arranged between the two stand columns, the unit plate and the sound absorption plate are connected through the wet method, the connection is stable and reliable, external connecting components and glue are reduced, meanwhile, the stand column and the back plate are formed in one step through a die, metal connecting pieces between the stand columns and the back plate are omitted, the technological links of production and assembly of the sound barrier are effectively reduced, and the production efficiency is improved. The plug-in type foundation connection mode is simple and convenient; meanwhile, the inserting plate is inserted into a slot reserved in a construction site during installation and fixed by concrete, a metal component is not required during installation, maintenance cost is reduced, compared with the existing integral sound barrier that a sound absorption component and a mechanical component are bonded by glue such as epoxy resin, the upright post is exposed, the glue can age under the action of ultraviolet rays and temperature and needs to be replaced frequently, and meanwhile, the aged glue can crack and is not attractive enough; compare picture peg formula sound barrier, need huge complicated basic connection structure, the sound barrier of this application adopts bayonet, and is simple convenient, does not adopt the metal material component, and long service life is used for installing the sound barrier and fixes through setting up the fixed station.
The preparation method of the integrated inorganic non-metallic sound barrier comprises the following steps:
s1, preparing a sound absorption plate; the sound absorption board comprises the following components in parts by weight: 25-35 parts of cement, 60-80 parts of ceramsite, 0.5-2 parts of latex powder, 0.5-2 parts of high-performance water reducing agent and 10-20 parts of water.
Optionally, the components comprise, by weight: 28-32 parts of cement, 65-75 parts of ceramsite, 0.8-1.5 parts of latex powder, 0.8-1.5 parts of high-performance water reducing agent and 13-17 parts of water.
Optionally, 30 parts of cement, 70 parts of ceramsite, 1 part of latex powder, 1 part of high-performance water reducing agent and 15 parts of water.
Wherein, the cement is low-alkali portland cement or ordinary portland cement with stable quality and strength grade not less than 42.5. The content of cement alkali should not exceed 0.60%, the content of sulfur trioxide should not exceed 3%, the content of chloride ion should not exceed 0.06%, and C in clinker3The content of A should not be more than 8%, and the specific surface area of the portland cement should not exceed 350m2And/kg, the performance of the concrete meets the regulations of general portland cement (GB175-2007) and railway concrete engineering construction quality acceptance standard (TB/T10424-2010).
The ceramsite can adopt 0.5-3 mm or 5-10 mm particle size fraction, the volume weight of the ceramsite is 500-700 kg/m3, and the cylinder pressure strength is not lower than 8.0 Mpa; before being used, the ceramsite is sprayed with water according to the water content of 12-15% for standby.
The water for mixing and maintaining the concrete meets the requirements specified in the Water for concrete Standard (JGJ 63-2006) and the acceptance Standard for construction quality of railway concrete engineering (TB/T10424-2010). All water meeting drinking standards can be used.
The high-performance water reducing agent is required to have good adaptability with the cement and admixture used. Performance index requirements are as follows: the water reducing rate is not less than 29 percent, the alkali content is not more than 3.5 percent, the gas content is less than 2 percent, chloride ions are not contained, and other performances meet the regulations of the existing national standard of concrete admixture (GB 8076) 1997, the concrete admixture application technical specification (GB 50119) 2003 and the polycarboxylic acid series high-performance water reducing agent (JG/T223 2007); the quality inspection of the water reducing agent is in accordance with the regulation of the homogeneity test method of the concrete admixture (GB/T8077-. The use of chloride water reducing agents is forbidden.
S1.1, carrying out water immersion treatment on the ceramsite;
s1.2, mixing the soaked ceramsite with cement and latex powder, and performing dry mixing;
s1.3, mixing the high-performance water reducing agent and water, adding the materials subjected to dry mixing in the step S2, and mixing and stirring to prepare a mixture; the mixture is in a dispersed granular state and has no flowing slurry; the frame die is detached immediately after the pressing and the vibration without the conditions of collapse, deformation and the like, and it should be noted that the stirrer is added with water for wetting before stirring, and the feeding and the stirring are started after water is drained.
S1.4, adding the mixture into a mold, and filling the mixture in the mold to be smooth; when the mixture is fed into a mold, the material of each sound absorption plate is controlled according to 35kg-40 kg; the pressing shrinkage ratio of the mixture is controlled according to 1.3, namely the height of the mixture after the mixture is put into a die and the material is spread out is about 90mm, and the forming height after the mixture is compacted is 70 +/-2 mm.
S1.5, demolding and maintaining after pressure vibration forming to obtain the sound absorption board; the forming pressure of the sound absorption plate is controlled within the range of 0.05 Mpa-0.12 Mpa, the duration time of the pressure vibration is not less than 30s, the vibration frequency is preferably high frequency and low amplitude, and the resonance of a mould and the pressure vibration equipment is avoided.
S2, preparing a sound barrier;
s2.1, cleaning the mold, brushing a release agent, and meanwhile, arranging reinforcing steel bars in the mold; it should be noted that, the C60 concrete unit plate mainly adopts HRB400 mm phi 12mm, phi 10mm hot-rolled ribbed steel bars and HRB335 mm phi 6mm hot-rolled plain steel bars, and the quality requirements should meet "the second part of steel for reinforced concrete: hot-rolled ribbed steel bar (GB 1499.2-2018), first part of steel for reinforced concrete: provisions in Hot-rolled plain Steel bars (GB 1499.1-2017)
S2.2, placing the sound absorption plate into a mold and positioning; when the unit plate is poured, the sound absorption plate is arranged on the bottom film in advance, or is arranged on the concrete surface after 70mm of concrete is poured, so that the risk that the concrete pollutes the surface of the sound absorption plate exists. Therefore, a layer of rubber plate with the thickness of 2mm is pasted on the front surface of the sound absorption plate by foam adhesive, and after the unit plate is demoulded, the rubber plate is torn off. Or covering the panel with clean geotextile or thick plastic film, and pressing the periphery of the panel while positioning the panel by using the panel positioning tool.
S2.3, preparing slurry and injecting the slurry into a mold; strength grade C60 of the slurry, slump: 160 +/-20 mm, and the components of the slurry comprise the following components in parts by weight: 450 parts of cement, 85 parts of fly ash, 25 parts of silica fume, 870 parts of crushed stone, 870 parts of sand, 45 parts of water reducing agent and 160 parts of water; the requirements of cement, water reducing agent, water and the like are the same as the requirements of the sound absorption board, the broken stone adopts two particle size fractions of 5-10 mm and 10-20 mm, the mud content is less than or equal to 0.5 percent, no mud block is obtained, the content of needle-shaped particles is less than or equal to 5 percent, the content of weathered weak particles is less than or equal to 3.0 percent, the content of pockmarked stones is less than or equal to 3.0 percent, the crushing index is less than or equal to 10 percent, and the performance index of the broken stone meets the related regulation of GB/T14685-2011; the sand can be natural sand or machine-made sand, the grain size of the sand meets the sand in the 2 region, the material is hard, the surface is clean, the mud content is not more than 0.5 percent, and the sand is not allowed to contain grains more than 9.5 mm. The performance index of the alloy meets the GB/T14684-2011 phase(ii) a closing rule; the fly ash should adopt class F I specification, the fineness (the screen residue of a 45 mu m square-hole screen) of the fly ash should not be more than 12.0 percent, the water demand ratio should not be more than 95 percent, the ignition loss should not be more than 5.0 percent, and the performance index of the fly ash should meet the relevant regulation in fly ash for cement and concrete (GB/T1596-2017); the silica fume should be selected to improve the performance of the concrete, SiO2More than 85% of Al2O3Content less than 4%, SO3The content should not exceed 0.8%, and the fineness is 150000cm2Above the specific surface area of the active material, the 28d activity index should reach 115 percent. The performance of the material meets the corresponding regulation in mineral admixture for high-strength and high-performance concrete (GB/T18736-2017).
S2.4, performing vibration molding and then performing surface folding or embossing; and (3) vibrating by adopting a vibrating table, distributing materials by using an ash bucket along the mould, vibrating while distributing the materials, stopping after vibrating for 1min, performing corner material supplementing, starting a vibrator to vibrate for 1min, and finally vibrating for multiple times, wherein the vibration time for one time is 30 s-1 min, and the concrete surface does not bubble any more and the surface is subjected to surface scumming. The specific procedure is cloth + vibration 1min → corner material supplement → vibration 1min → vibration 30s to 1min and dough collection; in the vibration process, the sound absorption plate, the embedded part M-1, the frame die and the like are subjected to loosening and timely treatment.
S2.5, standing for 8 hours, and then performing steam curing for 24 hours; the maintenance is carried out by adopting an automatic steam maintenance system, and in the maintenance process, the automatic maintenance system is controlled by a computer and automatically carries out maintenance according to a set maintenance program: standing for 8 hours, heating to 80 ℃ at a temperature rising speed of not more than 12 ℃/h, keeping the temperature for 24 hours, and cooling at a temperature falling speed of not more than 15 ℃/h.
And S2.6, finally demoulding, watering and curing to obtain the sound barrier, and watering and curing for 3 days after demoulding to keep the surface of the product in a wet state. When the environmental temperature is lower than 5 ℃, the surface of the sound barrier is sprayed with a curing agent, and heat preservation measures are taken.
The die can be two types of dies, the first type of die comprises a lower die plate, side die plates, a sound absorbing plate, cushion blocks and an upper die plate, the lower die plate is arranged on a working platform, the side die plates are arranged on the lower die plate and are mutually connected and enclosed to form a plate making cavity for filling slurry, the sound absorbing plate is arranged in the plate making cavity and is attached to the lower die plate, the cushion blocks are provided with positioning holes, the cushion blocks are arranged on the sound absorbing plate, one ends, far away from the sound absorbing plate, of the cushion blocks are flush with one ends, far away from the lower die plate, of the side die plates, of the cushion blocks, the upper die plate is covered on the plate making cavity, and the upper die plate is provided with; it should be noted that the side formworks are provided with a male tenon and a female tenon relative to the two side formworks, so that slurry is solidified into the female tenon and the male tenon, and the connection of two adjacent sound barriers is facilitated; the second kind of mould includes the side form board, the stand reinforcing bar, the cushion, acoustic baffle and cope match-plate pattern, a plurality of side form boards are located and are pour on the face and interconnect encloses the system board chamber that is used for filling the thick liquids, the equidistant system board intracavity of locating of being parallel to each other of a plurality of stand reinforcing bars, the cushion is equipped with the locating hole, a plurality of cushions are located the system board intracavity and are located between the stand reinforcing bar, the acoustic baffle is located on the cushion and is located between the coexistence post reinforcing bar, the acoustic baffle both ends and stand reinforcing bar contact, the cope match-plate pattern lid is located on the system board chamber. In some embodiments, the side wall of the upright steel bar is provided with a plurality of connecting nails for better connection with slurry, the side wall of the more optimized upright steel bar is provided with a plurality of slurry through holes, the upright steel bar is a hollow tube, the inner cavity of the upright steel bar is communicated with the plate making cavity through the slurry through holes, and when slurry is poured into the plate making cavity, the slurry simultaneously flows into the inner cavity of the upright steel bar, so that the connection between the upright steel bar and the slurry is realized; and the two upright post steel bars positioned at the outermost side are provided with a male tenon and a female tenon which are matched with each other so as to realize the connection of each sound barrier.
The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims (9)
1. An integrated inorganic non-metallic sound barrier is characterized in that: the cell board comprises a back board and stand columns, the stand columns are at least two and are evenly arranged on the back board, the stand columns are adjacent to each other, a sound absorption board is arranged between the stand columns, and the sound absorption board is connected with the back board and the stand columns through a wet method.
2. The integrated inorganic non-metallic sound barrier of claim 1, wherein: the unit board also comprises an inserting board arranged at one end of the back board.
3. The integrated inorganic non-metallic sound barrier of claim 1, wherein: the width of one side of the upright column close to the back plate is smaller than that of the other side; and the surface of one side of the upright post, which is far away from the back plate, is flush with the surface of the sound absorption plate.
4. The integrated inorganic non-metallic sound barrier of claim 1, wherein: and a male tenon and a female tenon are respectively arranged on the two stand columns on the outermost side of the back plate.
5. The integrated inorganic non-metallic sound barrier of claim 1, wherein: the back plate and the upright post are integrally cast and molded by high-strength concrete.
6. A method for preparing the integrated inorganic non-metallic sound barrier as claimed in any one of claims 1 to 5, wherein: the preparation steps are as follows:
s1, preparing a sound absorption plate; the sound absorption board comprises the following components in parts by weight: 25-35 parts of cement, 60-80 parts of ceramsite, 0.5-2 parts of latex powder, 0.5-2 parts of high-performance water reducing agent and 10-20 parts of water;
s1.1, carrying out water immersion treatment on the ceramsite;
s1.2, mixing the soaked ceramsite with cement and latex powder, and performing dry mixing;
s1.3, mixing the high-performance water reducing agent and water, adding the materials subjected to dry mixing in the step S2, and mixing and stirring to prepare a mixture;
s1.4, adding the mixture into a mold, and filling the mixture in the mold to be smooth;
s1.5, demolding and maintaining after pressure vibration forming to obtain the sound absorption board;
s2, preparing a sound barrier;
s2.1, cleaning the mold, brushing a release agent, and meanwhile, arranging reinforcing steel bars in the mold;
s2.2, placing the sound absorption plate into a mold and positioning;
s2.3, preparing slurry and injecting the slurry into a mold;
s2.4, performing vibration molding and then performing surface folding or embossing;
s2.5, standing for 8 hours, and then performing steam curing for 24 hours;
and S2.6, finally demoulding, and watering and maintaining to obtain the sound barrier.
7. The method for preparing the integrated inorganic nonmetallic sound barrier of claim 6, characterized in that: the slurry comprises the following components in parts by weight: 450 parts of cement, 85 parts of fly ash, 25 parts of silica fume, 870 parts of gravel, 870 parts of sand, 45 parts of water reducing agent and 160 parts of water.
8. The method for preparing the integrated inorganic nonmetallic sound barrier of claim 6, characterized in that: and in the step S2.5, the mixture is placed for 8 hours and is accompanied with temperature rise operation, the temperature rise speed is not more than 12 ℃/h, and when the temperature rises to 80 ℃, the temperature is kept for 24 hours and steam curing is carried out simultaneously.
9. The method for preparing the integrated inorganic nonmetallic sound barrier of claim 6, characterized in that: before the sound absorption plate is placed into the die, a rubber plate or a plastic film is attached to the outer surface of the sound absorption plate.
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