CN105568879A - Nonmetal sound absorption plate for railway and preparation method for nonmetal sound absorption plate - Google Patents
Nonmetal sound absorption plate for railway and preparation method for nonmetal sound absorption plate Download PDFInfo
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- CN105568879A CN105568879A CN201511032190.6A CN201511032190A CN105568879A CN 105568879 A CN105568879 A CN 105568879A CN 201511032190 A CN201511032190 A CN 201511032190A CN 105568879 A CN105568879 A CN 105568879A
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- acoustical
- nonmetal
- acoustical board
- sound absorption
- reinforced mesh
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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
- E01F8/0017—Plate-like elements
-
- 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
- E01F8/0047—Arrangements for absorbing or reflecting air-transmitted noise from road or railway traffic used in a wall type arrangement with open cavities, e.g. for covering sunken roads
- E01F8/0076—Cellular, e.g. as wall facing
- E01F8/0082—Cellular, e.g. as wall facing with damping material
Abstract
The invention discloses a nonmetal sound absorption plate for railway. The nonmetal sound absorption plate comprises a concrete plate, steel bar mesh pieces, sound absorption cotton and foam plates, wherein the concrete plate is formed by mixed pouring of concrete, coal ash and an early strength agent; each steel bar mesh piece adopts a cuboid integral type connection structure and is arranged in the concrete plate; the sound absorption cotton and the foam plates are arranged in a hollow part of the concrete plate; and the sound absorption cotton is connected to the inner wall of a panel layer through a hydrophobic black felt layer. The nonmetal sound absorption plate has the following advantages: the coal ash and the early strength agent are added into the concrete, so that the concrete strength is enhanced, the honey-comb and blasted surfaces are reduced, and the appearance quality is improved; the hydrophobic black felt layer is added between the sound absorption cotton and the panel layer of the concrete plate to achieve a waterproof effect, so that the sound absorption cotton is not damped on a rainy day; each steel bar adopts the cuboid integral type connection structure, so that the compressive strength of the sound absorption plate is improved; the foam plates are added, so that the requirement of surface density can be met under the condition of meeting the strength; and a trapezoidal bulge and a trapezoidal groove are arranged, so that the superposition of sound absorption plates is facilitated.
Description
Technical field
The present invention relates to nonmetal acoustical board of a kind of railway and preparation method thereof.
Background technology
Along with the develop rapidly of China railways, highway construction and urban traffic, bring trip convenient while, also brought a large amount of traffic noise pollutions, people are adopting various measure to reduce traffic noise always, and sound barrier technology is the very simple and effective noise-reduction method of one.Non-metal sound barrier due to its cost low, excellent noise reduction effect, share commercially increases gradually; Existing non-metal sound barrier mainly contains GRC concrete acoustical barrier, cement sawdust plate sound barrier, perlite sound barrier etc. in the market, sound absorption coefficient, product compressive strength and presentation quality are all not fully up to expectations, and easily there is voids and pits in the shaping rear surface of existing sound barrier, in forming process, inner cage of reinforcement is not an entirety, affects product strength after placement layer by layer.
Summary of the invention
The technical problem to be solved in the present invention, is to provide that a kind of voids and pits is few, anti-pressure ability strong and nonmetal acoustical board of railway having water-proof function concurrently and preparation method thereof.
The present invention is realized by following proposal: the nonmetal acoustical board of a kind of railway, it comprises concrete slab, reinforced mesh, acoustical cotton and cystosepiment, described concrete slab is by concrete, flyash, early strength admixture, corrosion inhibitor and antifreezing agent mixing cast form, described concrete slab comprises panel layer, backsheet layer, upper flaggy and lower flaggy, and it is overall in hollow cuboid, described reinforced mesh is cuboid monolithic syndeton, described reinforced mesh is arranged on the panel layer of described concrete slab, backsheet layer, the inside of upper flaggy and lower flaggy, described acoustical cotton and described cystosepiment are arranged on the hollow interior of described concrete slab, described acoustical cotton is connected to the inwall of described panel layer by the black carpet veneer of hydrophobic, described cystosepiment is directly connected to the inwall of described backsheet layer, described acoustical cotton is connected with described cystosepiment, described panel layer is provided with penetrable sound hole.
Described reinforced mesh adopts
reinforcing bar be assembled into cuboid monolithic syndeton, its leading flank is provided with 4-6 root transverse reinforcement, spacing 1000mm, trailing flank is provided with 9-11 root transverse reinforcement, spacing is 500mm, upper side and downside are equipped with 2-4 root transverse reinforcement, spacing is 500mm, leading flank, trailing flank, upper side and downside are equipped with the 9-11 root longitudinal reinforcement perpendicular with transverse reinforcement, spacing is 500mm, leading flank is arranged in described panel layer, trailing flank is arranged in described backsheet layer, upper side is arranged in described upper flaggy, downside is arranged in described lower flaggy, the trailing flank of described reinforced mesh can be opened.
Described penetrable sound hole is evenly distributed on described panel layer, and penetrable sound hole is provided with 160-180, and the length of described penetrable sound hole is 120-150mm, and width is 220-260mm, is highly 20-30mm.
Described concrete slab length is 3800-4200mm, width 1300-1500mm, height 4800-5500mm, the length of described acoustical cotton is 3200-3600mm, width is 300-500mm, is highly 3800-4200mm, and the length of described cystosepiment is 3200-3600mm, width is 200-400mm, is highly 3800-4200mm.
Described upper flaggy is provided with trapezoidal projection.
The lower end of described lower flaggy is provided with the trapezoidal groove corresponding with described trapezoidal projection shape size.
A preparation method for the nonmetal acoustical board of railway, comprises the following steps:
Step one: installation mold, bottom support adopts channel-section steel and Plate Welding to form, and bed die adopts ethylene-propylene-diene monomer rubber moulding, and limit mould adopts aluminium alloys shaping mould, according to dimensional requirement, the bottom support of mould, bed die, side form are installed, and adjust base and be in level;
Step 2: assembling reinforced mesh, adopts
reinforcing bar be assembled into the reinforced mesh of cuboid monolithic syndeton, its leading flank is provided with 4-6 root transverse reinforcement, spacing 1000mm, trailing flank is provided with 9-11 root transverse reinforcement, and spacing is 500mm, and upper side and downside are equipped with 2-4 root transverse reinforcement, spacing is 500mm, leading flank, trailing flank, upper side and downside are equipped with the 9-11 root longitudinal reinforcement perpendicular with transverse reinforcement, spacing is 500mm, is arranged on by the leading flank of reinforced mesh on mould that step one assembles down;
Step 3: by cement, yellow sand, rubble according to the standard mixing concrete of C30, S8, and add flyash, early strength admixture, corrosion inhibitor and antifreezing agent, obtain mixture A, each Composition Weight Parts of mixture A is as follows: cement 40-60 part, yellow sand 50-70 part, rubble 120-140 part, flyash 50-60 part, early strength admixture 1-3 part, corrosion inhibitor 2-6 part, antifreezing agent 5-10 part, order of addition is cement → yellow sand → rubble → flyash → corrosion inhibitor → antifreezing agent → early strength admixture;
Step 4: the trailing flank opening reinforced mesh, the mixture A obtained by step 3 first builds acoustical board panel layer, on panel layer, the black felt of one deck hydrophobic is coated with after having built, after 3-5 minute, the black felt of hydrophobic is frozen into the black carpet veneer of hydrophobic, place acoustical cotton in the above, then place cystosepiment, placed the trailing flank of rear closedown reinforced mesh, build while carrying out backsheet layer, upper flaggy and lower flaggy;
Step 5: the acoustical board plate pulsator after step 4 having been built vibrates;
Step 6: the acoustical board after step 5 having been vibrated is wiped one's face by carrying out receipts light;
Step 7: step 6 is received the acoustical board that light wipes one's face and carry out just supporting, maintenance processes, according to temperature conditions, determines whether to sprinkle water, and guarantees that sound absorbing plate does not chap;
Step 8: the acoustical board after step 7 just being supported carries out the demoulding, the demoulding adopts hand fit's fork truck to carry out the demoulding, prevents collision from causing acoustical board losing fangle in knockout course.
Step 9: the acoustical board after the step 8 demoulding is carried out end and support, pack after carrying out outdoor maintenance to some strength outside acoustical board holding chamber.
Described early strength admixture is one or both and above mixture in sodium chloride, calcium sulfate, natrium nitrosum, triethanolamine, described corrosion inhibitor is compounded amino alcohol reinforcing steel bar corrosion inhibitor, and described antifreezing agent is one or both and above mixture in fatty acid amide, ethylene glycol, acid phosphate amine salt.
Described acoustical cotton is the one in polyurethane sound-absorbing cotton, compound nonwoven cloth acoustical cotton, high density polyethylene (HDPE) acoustical cotton, PET acoustical cotton.
Beneficial effect of the present invention is:
1, the nonmetal acoustical board of a kind of railway of the present invention adds flyash and early strength admixture in concrete, improves concrete strength, reduces voids and pits, improves presentation quality;
2, the nonmetal acoustical board of a kind of railway of the present invention adds the black carpet veneer of hydrophobic and plays waterproof action between acoustical cotton and the panel layer inwall of concrete slab, and acoustical cotton can not be made moist overcast and rainy;
3, the reinforcing bar in the nonmetal acoustical board of a kind of railway of the present invention adopts cuboid monolithic syndeton, improves the compressive strength of acoustical board;
4, the nonmetal acoustical board of a kind of railway of the present invention adds cystosepiment, making acoustical board when meeting intensity, meeting the requirement of surface density;
5, the nonmetal acoustical board of a kind of railway of the present invention is provided with trapezoidal projection and trapezoidal groove, facilitates the superposition of acoustical board;
What 6, the nonmetal acoustical board of a kind of railway of the present invention adopted is nonmetals, and cost is low, and adopt acoustical cotton, sound-absorbing effect is good.
Accompanying drawing explanation
Fig. 1 is the cross-sectional view of the nonmetal acoustical board of a kind of railway.
Fig. 2 is the panel layer structural representation of the nonmetal acoustical board of a kind of railway.
Fig. 3 is the reinforced mesh structural representation of the nonmetal acoustical board of a kind of railway.
Fig. 4 is the reinforced mesh open mode structural representation of the nonmetal acoustical board of a kind of railway.
Fig. 5 is preparation method's flow chart of the nonmetal acoustical board of a kind of railway.
In figure: 1 is concrete slab, 2 is reinforced mesh, and 3 is acoustical cotton, and 4 is cystosepiment, and 5 is panel layer, and 6 is backsheet layer, and 7 is upper flaggy, and 8 is lower flaggy, and 9 is the black carpet veneer of hydrophobic, and 10 is penetrable sound hole, and 11 is trapezoidal projection, and 12 is trapezoidal groove.
Detailed description of the invention
Below in conjunction with Fig. 1-5, the present invention is further described, but scope does not limit to described content.
Embodiment 1: the nonmetal acoustical board of a kind of railway, it comprises concrete slab 1, reinforced mesh 2, acoustical cotton 3 and cystosepiment 4, concrete slab 1 is by concrete, flyash, early strength admixture, corrosion inhibitor and antifreezing agent mixing cast form, concrete slab 1 comprises panel layer 5, backsheet layer 6, upper flaggy 7 and lower flaggy 8, and it is overall in hollow cuboid, reinforced mesh 2 is in cuboid monolithic syndeton, improve the compressive strength of acoustical board, reinforced mesh 2 is arranged on the panel layer 5 of concrete slab 1, backsheet layer 6, the inside of upper flaggy 7 and lower flaggy 8, acoustical cotton 3 and cystosepiment 4 are arranged on the hollow interior of concrete slab 1, acoustical cotton 3 is connected to the inwall of panel layer 5 by the black carpet veneer 9 of hydrophobic, hydrophobic black carpet veneer 9 waterproof action, acoustical cotton 3 can not be made moist overcast and rainy, cystosepiment 4 is directly connected to the inwall of backsheet layer 6, and acoustical cotton 3 is connected with cystosepiment 4, arranges cystosepiment 4 and makes acoustical board when meeting intensity, meet the requirement of surface density, panel layer 5 is provided with penetrable sound hole 10, and upper flaggy 7 is provided with trapezoidal projection 11, and the lower end of lower flaggy 8 is provided with the trapezoidal groove 12 corresponding with trapezoidal projection 11 shape size, facilitates the superposition of acoustical board.
Reinforced mesh 2 adopts
reinforcing bar be assembled into cuboid monolithic syndeton, its leading flank is provided with 4 transverse reinforcements, spacing 1000mm, trailing flank is provided with 9 transverse reinforcements, spacing is 500mm, upper side and downside are equipped with 2 transverse reinforcements, spacing is 500mm, leading flank, trailing flank, upper side and downside are equipped with the 9 piece longitudinal reinforcements perpendicular with transverse reinforcement, spacing is 500mm, leading flank is arranged in panel layer 5, trailing flank is arranged in backsheet layer 6, upper side is arranged in flaggy 7, downside is arranged in lower flaggy 8, the trailing flank of reinforced mesh 2 can be opened.
Penetrable sound hole 10 is evenly distributed on panel layer 5, and penetrable sound hole 10 is provided with 160, and the length of penetrable sound hole 10 is 120-mm, and width is 220mm, is highly 20mm.
Concrete slab 1 length is 3800mm, width 1300mm, and height 4800mm, the length of acoustical cotton 3 is 3200mm, and width is 300mm, is highly 3800mm, and the length of cystosepiment 4 is 3200mm, and width is 200mm, is highly 3800mm.
A preparation method for the nonmetal acoustical board of railway, comprises the following steps:
Step one: installation mold, bottom support adopts channel-section steel and Plate Welding to form, and bed die adopts ethylene-propylene-diene monomer rubber moulding, and limit mould adopts aluminium alloys shaping mould, according to dimensional requirement, the bottom support of mould, bed die, side form are installed, and adjust base and be in level;
Step 2: assembling reinforced mesh 2, adopts
reinforcing bar be assembled into the reinforced mesh 2 of cuboid monolithic syndeton, its leading flank is provided with 4 transverse reinforcements, spacing 1000mm, trailing flank is provided with 9 transverse reinforcements, and spacing is 500mm, and upper side and downside are equipped with 2 transverse reinforcements, spacing is 500mm, leading flank, trailing flank, upper side and downside are equipped with the 9 piece longitudinal reinforcements perpendicular with transverse reinforcement, spacing is 500mm, is arranged on by the leading flank of reinforced mesh 2 on mould that step one assembles down;
Step 3: by cement, yellow sand, rubble according to the standard mixing concrete of C30, S8, and add flyash, early strength admixture, corrosion inhibitor and antifreezing agent, obtain mixture A, each Composition Weight Parts of mixture A is as follows: cement 40 parts, yellow sand 50 parts, rubble 120 parts, 50 parts, flyash, early strength admixture 1 part, corrosion inhibitor 2 parts, antifreezing agent 5 parts, order of addition is cement → yellow sand → rubble → flyash → corrosion inhibitor → antifreezing agent → early strength admixture;
Step 4: the trailing flank opening reinforced mesh 2, the mixture A obtained by step 3 first builds acoustical board panel layer 5, on panel layer 5, the black felt of one deck hydrophobic is coated with after having built, after 3-5 minute, the black felt of hydrophobic is frozen into the black carpet veneer 9 of hydrophobic, place acoustical cotton 3 in the above, then place cystosepiment 4, placed the trailing flank of rear closedown reinforced mesh 2, built while carrying out backsheet layer 6, upper flaggy 7 and lower flaggy 8;
Step 5: the acoustical board plate pulsator after step 4 having been built vibrates;
Step 6: the acoustical board after step 5 having been vibrated is wiped one's face by carrying out receipts light;
Step 7: step 6 is received the acoustical board that light wipes one's face and carry out just supporting, maintenance processes, according to temperature conditions, determines whether to sprinkle water, and guarantees that sound absorbing plate does not chap;
Step 8: the acoustical board after step 7 just being supported carries out the demoulding, the demoulding adopts hand fit's fork truck to carry out the demoulding, prevents collision from causing acoustical board losing fangle in knockout course.
Step 9: the acoustical board after the step 8 demoulding is carried out end and support, pack after carrying out outdoor maintenance to some strength outside acoustical board holding chamber.
Wherein early strength admixture adopts the mixture of sodium chloride and natrium nitrosum, and corrosion inhibitor adopts compounded amino alcohol reinforcing steel bar corrosion inhibitor, and antifreezing agent adopts fatty acid amide, and acoustical cotton 3 adopts polyurethane sound-absorbing cotton.
Embodiment 2: the nonmetal acoustical board of a kind of railway, it comprises concrete slab 1, reinforced mesh 2, acoustical cotton 3 and cystosepiment 4, concrete slab 1 is by concrete, flyash, early strength admixture, corrosion inhibitor and antifreezing agent mixing cast form, concrete slab 1 comprises panel layer 5, backsheet layer 6, upper flaggy 7 and lower flaggy 8, and it is overall in hollow cuboid, reinforced mesh 2 is in cuboid monolithic syndeton, improve the compressive strength of acoustical board, reinforced mesh 2 is arranged on the panel layer 5 of concrete slab 1, backsheet layer 6, the inside of upper flaggy 7 and lower flaggy 8, acoustical cotton 3 and cystosepiment 4 are arranged on the hollow interior of concrete slab 1, acoustical cotton 3 is connected to the inwall of panel layer 5 by the black carpet veneer 9 of hydrophobic, hydrophobic black carpet veneer 9 waterproof action, acoustical cotton 3 can not be made moist overcast and rainy, cystosepiment 4 is directly connected to the inwall of backsheet layer 6, and acoustical cotton 3 is connected with cystosepiment 4, arranges cystosepiment 4 and makes acoustical board when meeting intensity, meet the requirement of surface density, panel layer 5 is provided with penetrable sound hole 10, and upper flaggy 7 is provided with trapezoidal projection 11, and the lower end of lower flaggy 8 is provided with the trapezoidal groove 12 corresponding with trapezoidal projection 11 shape size, facilitates the superposition of acoustical board.
Reinforced mesh 2 adopts
reinforcing bar be assembled into cuboid monolithic syndeton, its leading flank is provided with 6 transverse reinforcements, spacing 1000mm, trailing flank is provided with 11 transverse reinforcements, spacing is 500mm, upper side and downside are equipped with 4 transverse reinforcements, spacing is 500mm, leading flank, trailing flank, upper side and downside are equipped with the 11 piece longitudinal reinforcements perpendicular with transverse reinforcement, spacing is 500mm, leading flank is arranged in panel layer 5, trailing flank is arranged in backsheet layer 6, upper side is arranged in flaggy 7, downside is arranged in lower flaggy 8, the trailing flank of reinforced mesh 2 can be opened.
Penetrable sound hole 10 is evenly distributed on panel layer 5, and penetrable sound hole 10 is provided with 180, and the length of penetrable sound hole 10 is 150mm, and width is 260mm, is highly 30mm.
Concrete slab 1 length is 4200mm, width 1500mm, and height 45500mm, the length of acoustical cotton 3 is 3600mm, and width is 500mm, is highly 4200mm, and the length of cystosepiment 4 is 3600mm, and width is 400mm, is highly 4200mm.
A preparation method for the nonmetal acoustical board of railway, comprises the following steps:
Step one: installation mold, bottom support adopts channel-section steel and Plate Welding to form, and bed die adopts ethylene-propylene-diene monomer rubber moulding, and limit mould adopts aluminium alloys shaping mould, according to dimensional requirement, the bottom support of mould, bed die, side form are installed, and adjust base and be in level;
Step 2: assembling reinforced mesh 2, adopts
reinforcing bar be assembled into the reinforced mesh 2 of cuboid monolithic syndeton, its leading flank is provided with 4-6 root transverse reinforcement, spacing 1000mm, trailing flank is provided with 11 transverse reinforcements, and spacing is 500mm, and upper side and downside are equipped with 4 transverse reinforcements, spacing is 500mm, leading flank, trailing flank, upper side and downside are equipped with the 11 piece longitudinal reinforcements perpendicular with transverse reinforcement, spacing is 500mm, is arranged on by the leading flank of reinforced mesh 2 on mould that step one assembles down;
Step 3: by cement, yellow sand, rubble according to the standard mixing concrete of C30, S8, and add flyash, early strength admixture, corrosion inhibitor and antifreezing agent, obtain mixture A, each Composition Weight Parts of mixture A is as follows: cement 60 parts, yellow sand 70 parts, rubble 140 parts, 60 parts, flyash, early strength admixture 3 parts, corrosion inhibitor 4 parts, antifreezing agent 8 parts, order of addition is cement → yellow sand → rubble → flyash → corrosion inhibitor → antifreezing agent → early strength admixture;
Step 4: the trailing flank opening reinforced mesh 2, the mixture A obtained by step 3 first builds acoustical board panel layer 5, on panel layer 5, the black felt of one deck hydrophobic is coated with after having built, after 3-5 minute, the black felt of hydrophobic is frozen into the black carpet veneer 9 of hydrophobic, place acoustical cotton 3 in the above, then place cystosepiment 4, placed the trailing flank of rear closedown reinforced mesh 2, built while carrying out backsheet layer 6, upper flaggy 7 and lower flaggy 8;
Step 5: the acoustical board plate pulsator after step 4 having been built vibrates;
Step 6: the acoustical board after step 5 having been vibrated is wiped one's face by carrying out receipts light;
Step 7: step 6 is received the acoustical board that light wipes one's face and carry out just supporting, maintenance processes, according to temperature conditions, determines whether to sprinkle water, and guarantees that sound absorbing plate does not chap;
Step 8: the acoustical board after step 7 just being supported carries out the demoulding, the demoulding adopts hand fit's fork truck to carry out the demoulding, prevents collision from causing acoustical board losing fangle in knockout course.
Step 9: the acoustical board after the step 8 demoulding is carried out end and support, pack after carrying out outdoor maintenance to some strength outside acoustical board holding chamber.
Wherein, early strength admixture adopts in triethanolamine, and corrosion inhibitor adopts compounded amino alcohol reinforcing steel bar corrosion inhibitor, and antifreezing agent adopts ethylene glycol, and acoustical cotton 3 adopts compound nonwoven cloth acoustical cotton.
Embodiment 3: the nonmetal acoustical board of a kind of railway, it comprises concrete slab 1, reinforced mesh 2, acoustical cotton 3 and cystosepiment 4, concrete slab 1 is by concrete, flyash, early strength admixture, corrosion inhibitor and antifreezing agent mixing cast form, concrete slab 1 comprises panel layer 5, backsheet layer 6, upper flaggy 7 and lower flaggy 8, and it is overall in hollow cuboid, reinforced mesh 2 is in cuboid monolithic syndeton, improve the compressive strength of acoustical board, reinforced mesh 2 is arranged on the panel layer 5 of concrete slab 1, backsheet layer 6, the inside of upper flaggy 7 and lower flaggy 8, acoustical cotton 3 and cystosepiment 4 are arranged on the hollow interior of concrete slab 1, acoustical cotton 3 is connected to the inwall of panel layer 5 by the black carpet veneer 9 of hydrophobic, hydrophobic black carpet veneer 9 waterproof action, acoustical cotton 3 can not be made moist overcast and rainy, cystosepiment 4 is directly connected to the inwall of backsheet layer 6, and acoustical cotton 3 is connected with cystosepiment 4, arranges cystosepiment 4 and makes acoustical board when meeting intensity, meet the requirement of surface density, panel layer 5 is provided with penetrable sound hole 10, and upper flaggy 7 is provided with trapezoidal projection 11, and the lower end of lower flaggy 8 is provided with the trapezoidal groove 12 corresponding with trapezoidal projection 11 shape size, facilitates the superposition of acoustical board.
Reinforced mesh 2 adopts
reinforcing bar be assembled into cuboid monolithic syndeton, its leading flank is provided with 5 transverse reinforcements, spacing 1000mm, trailing flank is provided with 10 transverse reinforcements, spacing is 500mm, upper side and downside are equipped with 3 transverse reinforcements, spacing is 500mm, leading flank, trailing flank, upper side and downside are equipped with the 10 piece longitudinal reinforcements perpendicular with transverse reinforcement, spacing is 500mm, leading flank is arranged in panel layer 5, trailing flank is arranged in backsheet layer 6, upper side is arranged in flaggy 7, downside is arranged in lower flaggy 8, the trailing flank of reinforced mesh 2 can be opened.
Penetrable sound hole 10 is evenly distributed on panel layer 5, and penetrable sound hole 10 is provided with 176, and the length of penetrable sound hole 10 is 140mm, and width is 250mm, is highly 25mm.
Concrete slab 1 length is 4000mm, width 1400mm, and height 5000mm, the length of acoustical cotton 3 is 3500mm, and width is 500mm, is highly 4000mm, and the length of cystosepiment 4 is 3500mm, and width is 300mm, is highly 4000mm.
A preparation method for the nonmetal acoustical board of railway, comprises the following steps:
Step one: installation mold, bottom support adopts channel-section steel and Plate Welding to form, and bed die adopts ethylene-propylene-diene monomer rubber moulding, and limit mould adopts aluminium alloys shaping mould, according to dimensional requirement, the bottom support of mould, bed die, side form are installed, and adjust base and be in level;
Step 2: assembling reinforced mesh 2, adopts
reinforcing bar be assembled into the reinforced mesh 2 of cuboid monolithic syndeton, its leading flank is provided with 5 transverse reinforcements, spacing 1000mm, trailing flank is provided with 10 transverse reinforcements, and spacing is 500mm, and upper side and downside are equipped with 3 transverse reinforcements, spacing is 500mm, leading flank, trailing flank, upper side and downside are equipped with the 10 piece longitudinal reinforcements perpendicular with transverse reinforcement, spacing is 500mm, is arranged on by the leading flank of reinforced mesh 2 on mould that step one assembles down;
Step 3: by cement, yellow sand, rubble according to the standard mixing concrete of C30, S8, and add flyash, early strength admixture, corrosion inhibitor and antifreezing agent, obtain mixture A, each Composition Weight Parts of mixture A is as follows: cement 50 parts, yellow sand 60 parts, rubble 130 parts, 55 parts, flyash, early strength admixture 2 parts, corrosion inhibitor 6 parts, antifreezing agent 10 parts, order of addition is cement → yellow sand → rubble → flyash → corrosion inhibitor → antifreezing agent → early strength admixture;
Step 4: the trailing flank opening reinforced mesh 2, the mixture A obtained by step 3 first builds acoustical board panel layer 5, on panel layer 5, the black felt of one deck hydrophobic is coated with after having built, after 3-5 minute, the black felt of hydrophobic is frozen into the black carpet veneer 9 of hydrophobic, place acoustical cotton 3 in the above, then place cystosepiment 4, placed the trailing flank of rear closedown reinforced mesh 2, built while carrying out backsheet layer 6, upper flaggy 7 and lower flaggy 8;
Step 5: the acoustical board plate pulsator after step 4 having been built vibrates;
Step 6: the acoustical board after step 5 having been vibrated is wiped one's face by carrying out receipts light;
Step 7: step 6 is received the acoustical board that light wipes one's face and carry out just supporting, maintenance processes, according to temperature conditions, determines whether to sprinkle water, and guarantees that sound absorbing plate does not chap;
Step 8: the acoustical board after step 7 just being supported carries out the demoulding, the demoulding adopts hand fit's fork truck to carry out the demoulding, prevents collision from causing acoustical board losing fangle in knockout course.
Step 9: the acoustical board after the step 8 demoulding is carried out end and support, pack after carrying out outdoor maintenance to some strength outside acoustical board holding chamber.
Wherein, early strength admixture adopts calcium sulfate, and corrosion inhibitor adopts compounded amino alcohol reinforcing steel bar corrosion inhibitor, and antifreezing agent adopts acid phosphate amine salt, and acoustical cotton 3 adopts high density polyethylene (HDPE) acoustical cotton.
Although done comparatively detailed elaboration to technical scheme of the present invention and enumerated; be to be understood that; to those skilled in the art; amendment is made to above-described embodiment or adopts equivalent replacement scheme; this is apparent to those skilled in the art; these modifications or improvements without departing from theon the basis of the spirit of the present invention, all belong to the scope of protection of present invention.
Claims (9)
1. the nonmetal acoustical board of railway, it is characterized in that: it comprises concrete slab (1), reinforced mesh (2), acoustical cotton (3) and cystosepiment (4), described concrete slab (1) is by concrete, flyash, early strength admixture, corrosion inhibitor and antifreezing agent mixing cast form, described concrete slab (1) comprises panel layer (5), backsheet layer (6), upper flaggy (7) and lower flaggy (8), and it is overall in hollow cuboid, described reinforced mesh (2) is in cuboid monolithic syndeton, described reinforced mesh (2) is arranged on the panel layer (5) of described concrete slab (1), backsheet layer (6), the inside of upper flaggy (7) and lower flaggy (8), described acoustical cotton (3) and described cystosepiment (4) are arranged on the hollow interior of described concrete slab (1), described acoustical cotton (3) is connected to the inwall of described panel layer (5) by the black carpet veneer of hydrophobic (9), described cystosepiment (4) is directly connected to the inwall of described backsheet layer (6), described acoustical cotton (3) is connected with described cystosepiment (4), described panel layer (5) is provided with penetrable sound hole (10).
2. the nonmetal acoustical board of a kind of railway according to claim 1, is characterized in that: described reinforced mesh (2) adopts
reinforcing bar be assembled into cuboid monolithic syndeton, its leading flank is provided with 4-6 root transverse reinforcement, spacing 1000mm, trailing flank is provided with 9-11 root transverse reinforcement, spacing is 500mm, upper side and downside are equipped with 2-4 root transverse reinforcement, spacing is 500mm, leading flank, trailing flank, upper side and downside are equipped with the 9-11 root longitudinal reinforcement perpendicular with transverse reinforcement, spacing is 500mm, leading flank is arranged in described panel layer (5), trailing flank is arranged in described backsheet layer (6), upper side is arranged in described upper flaggy (7), downside is arranged in described lower flaggy (8), the trailing flank of described reinforced mesh (2) can be opened.
3. the nonmetal acoustical board of a kind of railway according to claim 1, it is characterized in that: described penetrable sound hole (10) is evenly distributed on described panel layer (5), penetrable sound hole (10) is provided with 160-180, and the length of described penetrable sound hole (10) is 120-150mm, width is 220-260mm, is highly 20-30mm.
4. the nonmetal acoustical board of a kind of railway according to claim 1, it is characterized in that: described concrete slab (1) length is 3800-4200mm, width 1300-1500mm, height 4800-5500mm, the length of described acoustical cotton (3) is 3200-3600mm, and width is 300-500mm, be highly 3800-4200mm, the length of described cystosepiment (4) is 3200-3600mm, and width is 200-400mm, is highly 3800-4200mm.
5. the nonmetal acoustical board of a kind of railway according to claim 1, is characterized in that: described upper flaggy (7) is provided with trapezoidal projection (11).
6. the nonmetal acoustical board of a kind of railway according to claim 5, is characterized in that: the lower end of described lower flaggy (8) is provided with the trapezoidal groove (12) corresponding with described trapezoidal projection (11) shape size.
7. a preparation method for the nonmetal acoustical board of railway, is characterized in that: comprise the following steps:
Step one: installation mold, bottom support adopts channel-section steel and Plate Welding to form, and bed die adopts ethylene-propylene-diene monomer rubber moulding, and limit mould adopts aluminium alloys shaping mould, according to dimensional requirement, the bottom support of mould, bed die, side form are installed, and adjust base and be in level;
Step 2: assembling reinforced mesh (2), adopts
reinforcing bar be assembled into the reinforced mesh (2) of cuboid monolithic syndeton, its leading flank is provided with 4-6 root transverse reinforcement, spacing 1000mm, trailing flank is provided with 9-11 root transverse reinforcement, spacing is 500mm, upper side and downside are equipped with 2-4 root transverse reinforcement, spacing is 500mm, leading flank, trailing flank, upper side and downside are equipped with the 9-11 root longitudinal reinforcement perpendicular with transverse reinforcement, spacing is 500mm, is arranged on by the leading flank of reinforced mesh (2) on mould that step one assembles down;
Step 3: by cement, yellow sand, rubble according to the standard mixing concrete of C30, S8, and add flyash, early strength admixture, corrosion inhibitor and antifreezing agent, obtain mixture A, each Composition Weight Parts of mixture A is as follows: cement 40-60 part, yellow sand 50-70 part, rubble 120-140 part, flyash 50-60 part, early strength admixture 1-3 part, corrosion inhibitor 2-6 part, antifreezing agent 5-10 part, order of addition is cement → yellow sand → rubble → flyash → corrosion inhibitor → antifreezing agent → early strength admixture;
Step 4: the trailing flank opening reinforced mesh (2), the mixture A obtained by step 3 first builds acoustical board panel layer (5), at the black felt of panel layer (5) upper painting one deck hydrophobic after having built, after 3-5 minute, the black felt of hydrophobic is frozen into the black carpet veneer of hydrophobic (9), place acoustical cotton (3) in the above, then cystosepiment (4) is placed, the trailing flank of closedown reinforced mesh (2) after placement completes, builds while carrying out backsheet layer (6), upper flaggy (7) and lower flaggy (8);
Step 5: the acoustical board plate pulsator after step 4 having been built vibrates;
Step 6: the acoustical board after step 5 having been vibrated is wiped one's face by carrying out receipts light;
Step 7: step 6 is received the acoustical board that light wipes one's face and carry out just supporting, maintenance processes, according to temperature conditions, determines whether to sprinkle water, and guarantees that sound absorbing plate does not chap;
Step 8: the acoustical board after step 7 just being supported carries out the demoulding, the demoulding adopts hand fit's fork truck to carry out the demoulding, prevents collision from causing acoustical board losing fangle in knockout course.
Step 9: the acoustical board after the step 8 demoulding is carried out end and support, pack after carrying out outdoor maintenance to some strength outside acoustical board holding chamber.
8. the preparation method of the nonmetal acoustical board of a kind of railway according to claim 7, it is characterized in that: described early strength admixture is one or both and above mixture in sodium chloride, calcium sulfate, natrium nitrosum, triethanolamine, described corrosion inhibitor is compounded amino alcohol reinforcing steel bar corrosion inhibitor, and described antifreezing agent is one or both and above mixture in fatty acid amide, ethylene glycol, acid phosphate amine salt.
9. the preparation method of the nonmetal acoustical board of a kind of railway according to claim 7, is characterized in that: described acoustical cotton (3) is the one in polyurethane sound-absorbing cotton, compound nonwoven cloth acoustical cotton, high density polyethylene (HDPE) acoustical cotton, PET acoustical cotton.
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| WO2018076040A1 (en) * | 2016-10-24 | 2018-05-03 | Pyrotek Pty. Limited | An acoustically porous material |
| CN108004948A (en) * | 2018-01-09 | 2018-05-08 | 杨小武 | The enhanced GRC sound insulationg boards of monoblock type |
| CN108582458A (en) * | 2018-05-11 | 2018-09-28 | 山东景中景环保科技有限公司 | A kind of GFRC non-metal sound barriers production line |
| CN108978505A (en) * | 2018-09-21 | 2018-12-11 | 山西尚风科技股份有限公司 | A kind of nonmetallic sound absorption device of noise abatement |
| CN109551625A (en) * | 2018-11-16 | 2019-04-02 | 江苏新光环保工程有限公司 | A kind of preparation method of nonmetallic acoustic board |
| CN109574587A (en) * | 2018-12-06 | 2019-04-05 | 江苏新光环保工程有限公司 | A kind of enhancing waterproof self-repair concrete sound barrier and preparation method thereof |
| CN112502058A (en) * | 2020-12-04 | 2021-03-16 | 华东交通大学 | Restraint damping metal sound barrier |
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| CN112502058A (en) * | 2020-12-04 | 2021-03-16 | 华东交通大学 | Restraint damping metal sound barrier |
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| CN105568879B (en) | 2019-08-23 |
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