CN109574587A - A kind of enhancing waterproof self-repair concrete sound barrier and preparation method thereof - Google Patents
A kind of enhancing waterproof self-repair concrete sound barrier and preparation method thereof Download PDFInfo
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- CN109574587A CN109574587A CN201811492166.4A CN201811492166A CN109574587A CN 109574587 A CN109574587 A CN 109574587A CN 201811492166 A CN201811492166 A CN 201811492166A CN 109574587 A CN109574587 A CN 109574587A
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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
-
- 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
-
- 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
- C04B2111/20—Resistance against chemical, physical or biological attack
- C04B2111/27—Water resistance, i.e. waterproof or water-repellent materials
-
- 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
-
- 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
- C04B2111/76—Use at unusual temperatures, e.g. sub-zero
-
- 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
Abstract
The invention discloses a kind of enhancing waterproof self-repair concrete sound barriers and preparation method thereof, belong to concrete acoustical barrier technical field.The sound barrier is made of following raw material: portland cement, flyash, fine aggregate, coarse aggregate, water, water-reducing agent, catalyst, cellulose ether, self repairing agent, glass-fiber-fabric, reinforced mesh and acoustical cotton.The present invention enhances waterproof self-repair concrete sound barrier, internal siliceous raw material surface and hydroxyls dehydrate can be made to be crosslinked, by Si-O-Si group towards siliceous raw material, methyl group forms water-repellent layer outward, enhance the surface waterproofing performance of concrete acoustical barrier, concrete acoustical barrier of the present invention has preferable surface flexural strength, surface compression strength, resisting wind press capacity, counter-bending breaking load, freeze-thaw resistance property etc., extends the service life of concrete acoustical barrier.
Description
Technical field
The invention belongs to concrete acoustical barrier technical fields, and in particular to a kind of enhancing waterproof self-repair concrete sound barrier
And preparation method thereof.
Background technique
Railway non-metal sound barrier product is mostly concrete acoustical barrier at present, and is arranged in outdoor, for a long time by external wind
Shine drench with rain, temperature, the influence of vibration and concrete material itself defect, lead to concrete acoustical barrier waterproof in use
Performance is poor, is easy to produce micro-crack, thus enter harmful ion inside concrete acoustical barrier, corrosion concrete and internal steel
Muscle reduces the surface flexural strength of concrete acoustical barrier, surface compression strength, resisting wind press capacity, counter-bending breaking load, resistance to
Freeze thawing performance etc. shortens the service life of concrete acoustical barrier, especially influences the operation security of railway.Therefore, to coagulation
The waterproof performance of native sound barrier and the selfreparing of crackle guarantee that the product quality of concrete acoustical barrier is that our the main of care is asked
Topic.
Existing concrete acoustical barrier waterproof technique mainly uses common cement-base waterproof coating, and it is anti-to belong to face seal
Water material, waterproof effect mainly act on surface, once waterproof layer is destroyed or fallen off peeling, waterproof ability loses therewith
It loses.Existing concrete acoustical barrier crackle processing method is repaired using crack of the patching material to macroscopic view simultaneously, but by
To the limitation of patching material, these crackles could be repaired after repairing by conserving for a long time completely, and otherwise crackle can also go out
Existing, this restorative procedure is palliative, cannot thoroughly solve to the crackle of concrete acoustical barrier.
Summary of the invention
Goal of the invention: aiming at the problems existing in the prior art, the purpose of the present invention is to provide a kind of enhancing waterproofs certainly
Repair concrete acoustical barrier.Another object of the present invention is to provide a kind of preparations for enhancing waterproof self-repair concrete sound barrier
Method.The present invention effectively raises concrete by adding cement-based penetrant waterproof material and self repairing agent in sound barrier
Waterproof performance, anti-permeability performance, cracking resistance and self-repair function.
Technical solution: to solve the above-mentioned problems, the technical solution adopted in the present invention is as follows:
A kind of enhancing waterproof self-repair concrete sound barrier, including feedstock silicate cement, flyash, fine aggregate, thick bone
Material, water, water-reducing agent, catalyst, cellulose ether, self repairing agent, glass-fiber-fabric, reinforced mesh and acoustical cotton；
The proportion of the above raw material is respectively: 320~350 parts of portland cement；50~70 parts of flyash；Fine aggregate 680~
750 parts；700~800 parts of coarse aggregate；150~180 parts of water；40~50 parts of water-reducing agent；20~30 parts of catalyst；Cellulose ether 2~
5 parts；5~15 parts of self repairing agent；2~10 parts of glass-fiber-fabric；35~60 parts of reinforced mesh；10~30 parts of acoustical cotton；
The catalyst is calcium formate, and the self repairing agent is sodium metasilicate.
Preferably, the portland cement is 42.5 class g cement of PO.
Preferably, the flyash is I grades of F classes, loss on ignition≤8%.
Preferably, the fine aggregate is sand in continuous grading, and coarse aggregate is the continuous grading rubble of 5~10mm.
Preferably, the water-reducing agent is early-strength high-performance water-reducing agent.
Preferably, the cellulose ether is methyl cellulose ether.
Preferably, the bulk density of the glass-fiber-fabric is 130g/m3, width is 420~500mm, and length is 1890~3890mm.
Preferably, the reinforced mesh isReinforcing bar, width be 420~500mm, length be 1890~
3890mm。
Preferably, the bulk density of the acoustical cotton is 100kg/m3, width be 420~500mm, length be 1890~
3890mm。
The method for preparing above-mentioned enhancing waterproof self-repair concrete sound barrier, comprising the following steps:
(1) concrete acoustical barrier surface layer bed die, reinforced mesh and glass-fiber-fabric be installed, the glass-fiber-fabric apart from each side 40~
50mm；
(2) prepare concrete: by match ratio by portland cement, flyash, fine aggregate, coarse aggregate, water, water-reducing agent, urge
Agent, cellulose ether, self repairing agent are stirred；
(3) casting concrete sound barrier surface layer；
(4) sound-absorbing material is filled, the sound-absorbing material is rock wool, mineral wool, polyamide foam；
(5) casting concrete sound barrier backboard；
(6) demoulding and maintenance, curing condition: humidity is 80%~95%, and temperature is 15~30 DEG C, must enhance waterproof and review one's lessons by oneself
Multiple concrete acoustical barrier.
The utility model has the advantages that compared with prior art, the invention has the advantages that
(1) present invention is effective to improve by adding cement-based penetrant waterproof material and self repairing agent in sound barrier
The waterproof performance of concrete, anti-permeability performance, cracking resistance and self-repair function.
(2) present invention can be such that internal siliceous raw material surface and hydroxyls dehydrate is crosslinked, by Si-O-Si group towards siliceous
Raw material, methyl group form water-repellent layer outward, enhance the surface waterproofing performance of concrete acoustical barrier；Chemical equation is Ca2++
SiO3 2-+nH2O→CaSiO3·nH2O。
(3) present invention is chemically reacted by the chemical combination product of Si-O-Si group and cement, generation aluminium hydroxide,
Iron hydroxide isocolloid substance blocks capillary channel and gap in concrete, reduces the voidage of concrete, improves compactness；
Chemical equation are as follows: 4CaOAl2O3·Fe2O3+2Ca(O H)2+6(CaSO4·2H2O)+50H2O→2[3CaO (Al2O3·
Fe2O3)·3CaSO4·32H2O]
(4) present invention, which also produces, has certain expansile crystalline solid cement calcium sulphoaluminate, chemical equation are as follows:
3CaO·Al2O3·3CaSO4·32H2O+2C3A+4H2O→3[3CaO·Al2O3·CaSO4·12H2O].It, which not only has, fills out
The effect of capillary porosity is filled, blocked, also there is certain expansion character, the contraction of volume of concrete can be reduced or eliminated, is improved
The crack resistance of concrete, can effectively inhibit crackle, can continuous and effective self-healing because of concrete sound caused by a variety of causes
The micro-crack of barrier.
(5) present invention effectively increases surface flexural strength, the surface compression strength, anti-wind pressure of concrete acoustical barrier
Energy, counter-bending breaking load, freeze-thaw resistance property etc., extend the service life of concrete acoustical barrier.
Specific embodiment
In order to make the foregoing objectives, features and advantages of the present invention clearer and more comprehensible, right combined with specific embodiments below
A specific embodiment of the invention is described in detail.
Embodiment 1
A kind of enhancing waterproof self-repair concrete sound barrier, including panel and backboard are equipped with sound-absorbing between panel and backboard
Material rock wool；The raw material of panel and backboard are as follows: 42.5 grades of PO, 320 parts of portland cement；I grades of 50 parts of F class flyash, flyash
Loss on ignition≤8%；680 parts of fine aggregate；700 parts of coarse aggregate；150 parts of water；40 parts of early-strength high-performance water-reducing agent；Catalyst first
20 parts of sour calcium；2 parts of methyl cellulose ether；5 parts of self repairing agent sodium metasilicate；2 parts of glass-fiber-fabric；35 parts of reinforced mesh；10 parts of acoustical cotton；
Fine aggregate is sand in continuous grading, and coarse aggregate is the continuous grading rubble of 5~10mm；Glass-fiber-fabric is bulk density 130g/
m3, width 420mm, length 1890mm；Reinforced mesh isReinforcing bar, width 420mm, length be 1890 mm.
The bulk density of acoustical cotton is 100kg/m3, width 420mm, length 1890mm.
The preparation method of above-mentioned enhancing waterproof self-repair concrete sound barrier, comprising the following steps:
(1) concrete acoustical barrier surface layer bed die and reinforced mesh are installed；
(2) concrete is prepared: by match ratio by cement, flyash, fine aggregate, coarse aggregate, water, water-reducing agent, catalyst, fibre
Tie up plain ether, self repairing agent is stirred；
(3) casting concrete sound barrier surface layer；
(4) sound-absorbing material is filled；
(5) casting concrete sound barrier backboard；
(6) demoulding and maintenance must enhance waterproof self-repair concrete sound barrier.
The enhancing waterproof self-repair concrete sound barrier being prepared is tested for the property, test result is as shown in table 1.
Embodiment 2
A kind of enhancing waterproof self-repair concrete sound barrier, including panel and backboard are equipped with sound-absorbing between panel and backboard
Material glass cotton；The raw material of panel and backboard are as follows: 350 parts of 42.5 class g cement portland cement of PO；I grades of 70 parts of F class flyash,
Loss on ignition≤8%；Fine aggregate 750；800 parts of coarse aggregate；180 parts of water；50 parts of early-strength high-performance water-reducing agent；Catalyst calcium formate
30 parts；5 parts of methyl cellulose ether；15 parts of self repairing agent sodium metasilicate；10 parts of glass-fiber-fabric；60 parts of reinforced mesh；30 parts of acoustical cotton；
Fine aggregate is sand in continuous grading, and coarse aggregate is the continuous grading rubble of 5~10mm.The bulk density of glass-fiber-fabric is
130g/m3, width 500mm, length 3890mm.Reinforced mesh isReinforcing bar, width 500mm, length is
3890 mm.The bulk density of acoustical cotton is 100kg/m3, width 500mm, length 3890mm.
The preparation method of above-mentioned enhancing waterproof self-repair concrete sound barrier, comprising the following steps:
(1) concrete acoustical barrier surface layer bed die and reinforced mesh are installed；
(2) prepare concrete: by match ratio by portland cement, flyash, fine aggregate, coarse aggregate, water, water-reducing agent, urge
Agent, cellulose ether, self repairing agent are stirred；
(3) casting concrete sound barrier surface layer；
(4) sound-absorbing material is filled；
(5) casting concrete sound barrier backboard；
(6) demoulding and maintenance must enhance waterproof self-repair concrete sound barrier.
The enhancing waterproof self-repair concrete sound barrier being prepared is tested for the property, test result is as shown in table 1.
Embodiment 3
A kind of enhancing waterproof self-repair concrete sound barrier, including panel and backboard are equipped with sound-absorbing between panel and backboard
Material polyamide foam；The raw material of the panel and backboard are as follows: 42.5 grades of raw material PO, 330 parts of portland cement；Flyash 60
Part, it is I grades of F classes, loss on ignition≤8%；700 parts of fine aggregate；730 parts of coarse aggregate；160 parts of water；Early-strength high-performance water-reducing agent 43
Part；23 parts of catalyst calcium formate；3 parts of methyl cellulose ether；8 parts of self repairing agent sodium metasilicate；5 parts of glass-fiber-fabric；40 parts of reinforced mesh
With 15 parts of acoustical cotton；
Fine aggregate is sand in continuous grading, and coarse aggregate is the continuous grading rubble of 5~10mm.Glass-fiber-fabric is bulk density 130g/
m3, width 450mm, length 2000mm.Reinforced mesh isReinforcing bar, width 4500mm, length 2000mm.It inhales
The bulk density of sound cotton is 100kg/m3, width 450mm, length 2000mm.
The method for preparing above-mentioned enhancing waterproof self-repair concrete sound barrier, comprising the following steps:
(1) concrete acoustical barrier surface layer bed die and reinforced mesh are installed；
(2) prepare concrete: by match ratio by portland cement, flyash, fine aggregate, coarse aggregate, water, water-reducing agent, urge
Agent, cellulose ether, self repairing agent are stirred；
(3) casting concrete sound barrier surface layer；
(4) sound-absorbing material is filled；
(5) casting concrete sound barrier backboard；
(6) demoulding and maintenance must enhance waterproof self-repair concrete sound barrier.
The enhancing waterproof self-repair concrete sound barrier being prepared is tested for the property, test result is as shown in table 1.
Embodiment 4
A kind of enhancing waterproof self-repair concrete sound barrier, including panel and backboard are equipped with sound-absorbing between panel and backboard
Material rock wool；The raw material of panel and backboard are as follows: 42.5 grades of PO, 340 parts of portland cement；55 parts of flyash, it is I grades of F classes, burns and lose
Amount≤8%；720 parts of fine aggregate；750 parts of coarse aggregate；170 parts of water；46 parts of early-strength high-performance water-reducing agent；Catalyst inlet masterbatch
26 parts；4 parts of methyl cellulose ether；10 parts of self repairing agent sodium metasilicate；8 parts of glass-fiber-fabric；45 parts of reinforced mesh；20 parts of acoustical cotton；
Fine aggregate is sand in continuous grading, and coarse aggregate is the continuous grading rubble of 5~10mm.Glass-fiber-fabric is bulk density 130g/
m3, width 480mm, length 2500mm.Reinforced mesh isReinforcing bar, width 480mm, length 2500mm.Sound-absorbing
The bulk density of cotton is 100kg/m3, width 480mm, length 2500mm.
The method for preparing above-mentioned enhancing waterproof self-repair concrete sound barrier, comprising the following steps:
(1) concrete acoustical barrier surface layer bed die and reinforced mesh are installed；
(2) prepare concrete: by match ratio by portland cement, flyash, fine aggregate, coarse aggregate, water, water-reducing agent, urge
Agent, cellulose ether, self repairing agent are stirred；
(3) casting concrete sound barrier surface layer；
(4) sound-absorbing material is filled；
(5) casting concrete sound barrier backboard；
(6) demoulding and maintenance must enhance waterproof self-repair concrete sound barrier.
The enhancing waterproof self-repair concrete sound barrier being prepared is tested for the property, test result is as shown in table 1.
Embodiment 5
A kind of enhancing waterproof self-repair concrete sound barrier, including panel and backboard are equipped with sound-absorbing between panel and backboard
Material polyamide foam；The raw material of panel and backboard are as follows: 42.5 grades of PO, 340 parts of portland cement；60 parts of flyash, be I grades of F
Class, loss on ignition≤8%；740 parts of fine aggregate；780 parts of coarse aggregate；160 parts of water；48 parts of early-strength high-performance water-reducing agent；Catalyst
28 parts of import masterbatch；5 parts of methyl cellulose ether；13 parts of self repairing agent sodium metasilicate；5 parts of glass-fiber-fabric；50 parts of reinforced mesh；Acoustical cotton
25 parts；
Fine aggregate is sand in continuous grading, and coarse aggregate is the continuous grading rubble of 5~10mm.Glass-fiber-fabric is bulk density 130g/
m3, width 450mm, length 3000mm.Reinforced mesh isReinforcing bar, width 450mm, length 3000mm.Sound-absorbing
The bulk density of cotton is 100kg/m3, width 450mm, length 3000mm.
The method for preparing above-mentioned enhancing waterproof self-repair concrete sound barrier, comprising the following steps:
(1) concrete acoustical barrier surface layer bed die and reinforced mesh are installed；
(2) prepare concrete: by match ratio by portland cement, flyash, fine aggregate, coarse aggregate, water, water-reducing agent, urge
Agent, cellulose ether, self repairing agent are stirred；
(3) casting concrete sound barrier surface layer；
(4) sound-absorbing material is filled；
(5) casting concrete sound barrier backboard；
(6) demoulding and maintenance must enhance waterproof self-repair concrete sound barrier.
The enhancing waterproof self-repair concrete sound barrier being prepared is tested for the property, test result is as shown in table 1.
Embodiment 6
A kind of enhancing waterproof self-repair concrete sound barrier, including panel and backboard are equipped with sound-absorbing between panel and backboard
Material glass cotton；The raw material of panel and backboard are as follows: 42.5 grades of PO, 335 parts of portland cement；57 parts of flyash, it is I grades of F classes, burns
Vector≤8%；730 parts of fine aggregate；780 parts of coarse aggregate；165 parts of water；49 parts of early-strength high-performance water-reducing agent；Catalyst calcium formate
23 parts；4 parts of methyl cellulose ether；14 parts of self repairing agent sodium metasilicate；9 parts of glass-fiber-fabric；50 parts of reinforced mesh；28 parts of acoustical cotton；
Fine aggregate is sand in continuous grading, and coarse aggregate is the continuous grading rubble of 5~10mm.Glass-fiber-fabric is bulk density 130g/
m3, width 490mm, length 3500mm.Reinforced mesh isReinforcing bar, width 490mm, length 3500mm.Sound-absorbing
The bulk density of cotton is 100kg/m3, width 490mm, length 3500mm.
The method for preparing above-mentioned enhancing waterproof self-repair concrete sound barrier, comprising the following steps:
(1) concrete acoustical barrier surface layer bed die and reinforced mesh are installed；
(2) prepare concrete: by match ratio by portland cement, flyash, fine aggregate, coarse aggregate, water, water-reducing agent, urge
Agent, cellulose ether, self repairing agent are stirred；
(3) casting concrete sound barrier surface layer；
(4) sound-absorbing material is filled；
(5) casting concrete sound barrier backboard；
(6) demoulding and maintenance must enhance waterproof self-repair concrete sound barrier.
The enhancing waterproof self-repair concrete sound barrier being prepared is tested for the property, test result is as shown in table 1.
Embodiment 7
The present embodiment is with the enhancing waterproof self-repair concrete sound barrier being prepared in Examples 1 to 6 and commercially available sound-screen
Barrier is test object, to them in surface flexural strength, surface compression strength, resisting wind press capacity, counter-bending breaking load, resistance to jelly
Melt performance and used life etc. to be detected and monitored, test result is as shown in table 1.Wherein, commercially available concrete sound
The raw material of barrier are common C30 concrete, and sound-absorbing material is rock wool；Waterproof technique is mainly applied using common cement-based waterproof
Material, belongs to face seal waterproof material.As shown in Table 1, the present invention enhances waterproof self-repair concrete sound barrier surface pressure resistance
Degree is up to 50MPa, and surface flexural strength is up to 8MPa；Sound insulation effect is not also poor；Studying also found, Examples 1 to 6
In sound barrier when surface is cracked, there is very strong self-reparing capability, it is shorter to be mainly reflected in used time repair time,
And cracked probability is very low again, so that the present invention enhances the service life of waterproof self-repair concrete sound barrier
It is significantly improved, reduces use cost.
The performance test results of the enhancing waterproof self-repair concrete sound barrier of 1 Examples 1 to 6 of table
Claims (10)
1. a kind of enhancing waterproof self-repair concrete sound barrier, which is characterized in that including panel and backboard, between panel and backboard
Equipped with sound-absorbing material；The raw material and its proportion of the panel and backboard are respectively as follows: 320~350 parts of portland cement；Flyash 50
~70 parts；680~750 parts of fine aggregate；700~800 parts of coarse aggregate；150~180 parts of water；40~50 parts of water-reducing agent；Catalyst 20
~30 parts；2~5 parts of cellulose ether；5~15 parts of self repairing agent；2~10 parts of glass-fiber-fabric；35~60 parts of reinforced mesh；Acoustical cotton 10
~30 parts；The catalyst is calcium formate, and the self repairing agent is sodium metasilicate.
2. enhancing waterproof self-repair concrete sound barrier according to claim 1, which is characterized in that the portland cement
For 42.5 class g cement of PO.
3. enhancing waterproof self-repair concrete sound barrier according to claim 1, which is characterized in that the flyash is I
Grade F class, loss on ignition≤8%.
4. enhancing waterproof self-repair concrete sound barrier according to claim 1, which is characterized in that the fine aggregate is to connect
Sand in continuous gradation, the coarse aggregate are the continuous grading rubble of 5~10mm.
5. enhancing waterproof self-repair concrete sound barrier according to claim 1, which is characterized in that the water-reducing agent is early
Strength high-performance water-reducing agent.
6. enhancing waterproof self-repair concrete sound barrier according to claim 1, which is characterized in that the cellulose ether is
Methyl cellulose ether.
7. enhancing waterproof self-repair concrete sound barrier according to claim 1, which is characterized in that the appearance of the glass-fiber-fabric
Weight is 130g/m3, width is 420~500mm, and length is 1890~3890mm.
8. enhancing waterproof self-repair concrete sound barrier according to claim 1, which is characterized in that the reinforced mesh isReinforcing bar, width be 420~500mm, length be 1890~3890mm.
9. enhancing waterproof self-repair concrete sound barrier according to claim 1, which is characterized in that the appearance of the acoustical cotton
Weight is 100kg/m3, width is 420~500mm, and length is 1890~3890mm.
10. the method for preparing any enhancing waterproof self-repair concrete sound barrier of claim 1~9, which is characterized in that
The following steps are included:
(1) concrete acoustical barrier surface layer bed die, reinforced mesh and glass-fiber-fabric are installed, the glass-fiber-fabric is apart from each 40~50mm of side；
(2) prepare concrete: by match ratio by feedstock silicate cement, flyash, fine aggregate, coarse aggregate, water, water-reducing agent, urge
Agent, cellulose ether, self repairing agent are stirred；
(3) casting concrete sound barrier panel；
(4) sound-absorbing material is filled, the sound-absorbing material is rock wool, mineral wool, polyamide foam；
(5) casting concrete sound barrier backboard；
(6) demoulding and maintenance, curing condition: humidity is 80%~95%, and temperature is 15~30 DEG C, must enhance waterproof and review one's lessons by oneself compound
Solidifying soil sound barrier.
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| CN112759335A (en) * | 2021-02-01 | 2021-05-07 | 浙江广厦建设职业技术大学 | Preparation method of 3D printing cement noise reduction barrier based on graphene sound absorption cotton fiber base material |
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