CN106946506B - A kind of impact resistance well double-edged fine-toothed comb, well lid - Google Patents
A kind of impact resistance well double-edged fine-toothed comb, well lid Download PDFInfo
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- CN106946506B CN106946506B CN201710148943.2A CN201710148943A CN106946506B CN 106946506 B CN106946506 B CN 106946506B CN 201710148943 A CN201710148943 A CN 201710148943A CN 106946506 B CN106946506 B CN 106946506B
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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
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- 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
-
- 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
- B28B1/087—Producing shaped prefabricated articles from the material by vibrating or jolting by means acting on the mould ; Fixation thereof to the mould
- B28B1/0873—Producing shaped prefabricated articles from the material by vibrating or jolting by means acting on the mould ; Fixation thereof to the mould the mould being placed on vibrating or jolting supports, e.g. moulding tables
-
- 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
- B28B13/00—Feeding the unshaped material to moulds or apparatus for producing shaped articles; Discharging shaped articles from such moulds or apparatus
- B28B13/04—Discharging the shaped articles
- B28B13/06—Removing the shaped articles from moulds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28C5/00—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions
- B28C5/003—Methods for mixing
- B28C5/006—Methods for mixing involving mechanical aspects
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28C5/00—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions
- B28C5/08—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions using driven mechanical means affecting the mixing
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F5/00—Sewerage structures
- E03F5/04—Gullies inlets, road sinks, floor drains with or without odour seals or sediment traps
- E03F5/06—Gully gratings
-
- 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
- C04B2111/34—Non-shrinking or non-cracking materials
- C04B2111/343—Crack resistant materials
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Structural Engineering (AREA)
- Hydrology & Water Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- Public Health (AREA)
- Water Supply & Treatment (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention discloses a kind of impact resistance well double-edged fine-toothed combs, well lid, including concrete body and the carbon fiber mesh fabric for being laid on concrete body bottom, the material of the concrete body is composed of the following components: cement 1-1.2 parts by weight, flyash 1.2-1.4 parts by weight, sand 0.6-0.8 parts by weight, thickener 0.001-0.002 parts by weight, water-reducing agent 0.009-0.01 parts by weight, water 0.3-0.4 parts by weight, vinal；Vinal accounts for the 1%-2% of concrete body total volume.This well double-edged fine-toothed comb is made of PVA fiber concrete material, can not only be improved the bearing capacity of well double-edged fine-toothed comb, while relying on the significant strain-hardening property of PVA fiber concrete and shock resistance, can effectively be improved the shock resistance of well double-edged fine-toothed comb；Simultaneously because PVA fiber concrete has extremely strong endurance quality, the service life of well double-edged fine-toothed comb can be improved.
Description
Technical field
The invention belongs to the field of drainage facility of public transport, and in particular to a kind of impact resistance well double-edged fine-toothed comb, well lid.
Background technique
Currently, common well double-edged fine-toothed comb largely uses cast iron to manufacture or commonly mix in avenue and highway drainage engineering
Solidifying soil manufacture, although intensity is larger, compressive property is stronger, and the well double-edged fine-toothed comb brittleness using cast iron manufacture is larger, impact resistance
Can be lower, and overload of vehicle is more serious at present, original design standard easily occurs well double-edged fine-toothed comb and the destruction such as fractures, and is manufactured using cast iron
Loss is also more serious；It is manufactured using normal concrete, brittleness is also larger, substantially reduces service life.Simultaneously because
Well double-edged fine-toothed comb is largely arranged at roadside, cart emergent stopping, larger to well double-edged fine-toothed comb impact property itself, using cast iron and commonly
The well double-edged fine-toothed comb brittleness of concrete manufacture is larger, easily chipping under biggish Impact Load, to pedestrian and non motorized vehicle
Cause great security risk.
Well lid and well double-edged fine-toothed comb are prepared using GRC material although having been disclosed in the prior art, the well double-edged fine-toothed comb being prepared
It can solve the problems, such as that well double-edged fine-toothed comb is breakable to a certain extent, but in the reciprocal enormous impact load action of traffic
Under, it is still easily broken, causes the reduction of service life.
In conclusion the problem of being easily broken under reciprocal greater impact load action for well double-edged fine-toothed comb in the prior art,
Still lack effective solution scheme.
Summary of the invention
In order to solve above-mentioned the deficiencies in the prior art, the present invention provides a kind of impact resistance well double-edged fine-toothed combs, including concrete
Ontology and the carbon fiber mesh fabric for being laid on concrete body bottom, the material of the concrete body are composed of the following components:
Cement 1-1.2 parts by weight, flyash 1.2-1.4 parts by weight, sand 0.6-0.8 parts by weight, thickener 0.001-0.002 parts by weight,
Water-reducing agent 0.009-0.01 parts by weight, water 0.3-0.4 parts by weight, vinal；Vinal accounts for concrete body
The 1%-2% of total volume.
PVA fiber concrete using formula preparation has preferable shock resistance and strain-hardening property, commonly
During concrete carries out conventional impact test, it will be smashed by 5,6 percussions, and the PVA of the formula is fine
It ties up under shock loading of the concrete Jing Guo identical dynamics, impact just starts to generate crack more than 400 times, but state at this time is
Fine fisssure still can continue to use without scattered state, not will lead to well double-edged fine-toothed comb and be directly broken, and then avoid to pedestrian and non-
Motor vehicle causes security risk.
Using the PVA fiber concrete of the formula as matrix, well double-edged fine-toothed comb ontology is prepared, in preparation process, at the bottom of well double-edged fine-toothed comb
Portion is laid with carbon fiber mesh fabric, and carbon fiber mesh fabric has high-tensile, high resiliency, the performances such as antiacid caustic corrosion.Due to well
Double-edged fine-toothed comb can make the bottom of well double-edged fine-toothed comb that maximum deformation occur under percussion, can if deformation exceeds maximum flexibility deformation
The bottom of well double-edged fine-toothed comb is caused to crack.
Carbon fiber mesh fabric is laid on to the bottom of the concrete body of well double-edged fine-toothed comb herein, since carbon fiber mesh fabric can
With vertically and horizontally stress, it is possible to play its high compressive strength and elastomeric feature completely, can effectively improve well double-edged fine-toothed comb
Compression strength and impact strength, and also improve the complete performance of well double-edged fine-toothed comb, prevent from leading to entirety due to local failure
It destroys, so that prepared well double-edged fine-toothed comb can satisfy the needs of shock resistance.
Moreover, carbon fiber mesh fabric is reticular structure, even if well double-edged fine-toothed comb is broken, carbon fiber mesh fabric can still be incited somebody to action
Each section of well double-edged fine-toothed comb fracture is bonded as an entirety, it is therefore prevented that the embrittlement of well double-edged fine-toothed comb.In that case, well double-edged fine-toothed comb still has
There is certain support strength, avoid and passer-by and vehicle are fallen into hole, causes unnecessary injury.
Further, the carbon fiber mesh fabric with a thickness of 4-6mm.The carbon fiber mesh fabric of the thickness has been provided with good
The enhancing ability of good compressive property and shock resistance, can satisfy the requirement of well double-edged fine-toothed comb completely.Meanwhile the thickness
The lighter in weight of carbon fiber mesh fabric not will increase the self weight of well double-edged fine-toothed comb substantially, and not have substantially to the sectional dimension of well double-edged fine-toothed comb
Have an impact.
Further, the material of the concrete body is composed of the following components: cement 1-1.1 parts by weight, flyash
1.2-1.3 parts by weight, sand 0.7-0.8 parts by weight, 0.001 parts by weight of thickener, water-reducing agent 0.0095-0.01 parts by weight, water
0.384 parts by weight, vinal；Vinal accounts for the 2% of concrete body total volume.
Further, the material of the concrete body is composed of the following components: 1 parts by weight of cement, 1.2 weight of flyash
Measure part, 0.8 parts by weight of sand, 0.001 parts by weight of thickener, 0.0096 parts by weight of water-reducing agent, 0.384 parts by weight of water, polyvinyl alcohol
Fiber；Vinal accounts for the 2% of concrete body total volume.
It finds by repetition test, when using said ratio between each component of the material of concrete body, compares
It is matched in others, the well double-edged fine-toothed comb being prepared has optimal compressive property and shock resistance.
Further, the thickener is cellulose thickener, and further, the thickener is hydroxypropyl methyl
Cellulose.
This kind of thickener can cooperate with the other components in concrete, give full play to the shock resistance of concrete.
Further, the water-reducing agent is polycarboxylic acids dehydragent.
Further, drainage hole is provided on the well double-edged fine-toothed comb.
In order to solve the above technical problems, the present invention also provides the production methods of above-mentioned impact resistance well double-edged fine-toothed comb, including
Following steps:
1) cement, flyash, thickener and sand are poured into and carries out dry mixing in blender；
2) after the completion of dry mixing, water and water-reducing agent is added into mixture, stirs to get cement matrix；
3) PVA fiber is added into cement matrix, is then stirred, obtains PVA fiber concrete；
4) well double-edged fine-toothed comb template is placed on a vibration table, then is laid on template bottom for carbon fiber mesh fabric is smooth, by PVA
Fiber concrete pours into template, and the vibration settings time is formed, and light plastering is received after molding, and well double-edged fine-toothed comb is made in demoulding.
Using step 1) -3) preparation method when being prepared, large batch of mix may be implemented, can satisfy well double-edged fine-toothed comb
Industrialized production.
Further, in step 4), the time of vibration moulding is 2-4min.
When vibrating 2-4min, PVA fiber concrete can sufficiently be bonded with carbon fiber mesh fabric, and can be to greatest extent
The hole for reducing PVA fiber concrete intrinsic silicon, improves the integral strength of well double-edged fine-toothed comb.
The present invention also provides a kind of impact resistance well lids comprising above-mentioned concrete body and is laid on concrete body
The carbon fiber mesh fabric of bottom.
The invention has the benefit that
1) well double-edged fine-toothed comb and well lid prepared by the present invention bottom be laid with carbon cloth grid cloth, due to carbon fiber mesh can
With vertically and horizontally simultaneously stress, and have stronger tensile property, elastic property and antiacid alkali erosiveness energy, using carbon fiber mesh
Skeleton of the cloth as well double-edged fine-toothed comb effectively increases the entirety of well double-edged fine-toothed comb so that prepared well double-edged fine-toothed comb has stronger integrality
Stress performance increases its service life.
2) this well double-edged fine-toothed comb is made of PVA fiber concrete material, can not only improve the bearing capacity of well double-edged fine-toothed comb, simultaneously
The significant strain-hardening property of PVA fiber concrete and shock resistance are relied on, the anti-impact of well double-edged fine-toothed comb can be effectively improved
Hit performance；Simultaneously because PVA fiber concrete has extremely strong endurance quality, the service life of well double-edged fine-toothed comb can be improved；
3) material non-recovery utility value used in this well double-edged fine-toothed comb, also can be effectively prevented loss hidden danger.
Detailed description of the invention
The accompanying drawings constituting a part of this application is used to provide further understanding of the present application, and the application's shows
Meaning property embodiment and its explanation are not constituted an undue limitation on the present application for explaining the application.
Fig. 1 is impact resistance well double-edged fine-toothed comb plan view；
Fig. 2 is impact resistance well double-edged fine-toothed comb cross-sectional view；
Fig. 3 is carbon fiber mesh fabric schematic diagram；
Fig. 4 is the PVA fiber concrete tensile stress-strain relation curve prepared in the present invention.
Wherein, 1, concrete body；2, carbon fiber mesh fabric.
Specific embodiment
It is noted that following detailed description is all illustrative, it is intended to provide further instruction to the application.Unless another
It indicates, all technical and scientific terms used herein has usual with the application person of an ordinary skill in the technical field
The identical meanings of understanding.
It should be noted that term used herein above is merely to describe specific embodiment, and be not intended to restricted root
According to the illustrative embodiments of the application.As used herein, unless the context clearly indicates otherwise, otherwise singular
Also it is intended to include plural form, additionally, it should be understood that, when in the present specification using term "comprising" and/or " packet
Include " when, indicate existing characteristics, step, operation, device, component and/or their combination.
Term explains part:
Carbon fiber mesh fabric, also known as carbon fiber sheet, carbon fiber cloth, carbon fiber woven cloth etc., carbon fiber mesh fabric have strong
The features such as degree is high, density is small, thickness is thin, does not increase strenthening member self weight and sectional dimension substantially.
Vinal, as PVA fiber are using polyvinyl alcohol as synthetic fibers made from raw material spinning.
Embodiment 1
As shown in Figure 1, Figure 2 and Figure 3, a kind of impact resistance well double-edged fine-toothed comb, including concrete body 1 and it is laid on concrete sheet
The material of the carbon fiber mesh fabric 2 of 1 bottom of body, the concrete body 1 is grouped as by the group of following parts by weight: 1 part of cement, powder
1.2 parts of coal ash, 0.8 part of sand, 0.001 part of hydroxypropyl methyl cellulose thickener, 0.0096 part of polycarboxylic acids dehydragent, water
0.384 part, the volume volume of vinal is the 2% of concrete body total volume.
Specific match ratio is as follows:
ECC design of material match ratio (accounts for cement specific gravity)
The production method of well double-edged fine-toothed comb, mainly includes the following steps:
(1) cement, flyash, thickener, quartz sand are poured into dry mixing in blender；
(2) water is added after the completion of dry mixing and additive mixed liquor is stirred, obtain cement matrix；
(3) stirring of PVA fiber is added, obtains PVA fiber concrete；
(4) well double-edged fine-toothed comb template is placed on a vibration table, then is laid on template bottom for carbon fiber mesh fabric is smooth,
PVA fiber concrete pours into and carries out vibration 2min in template, carries out receiving light plastering after molding, final to demould, and completes well double-edged fine-toothed comb
Production.
Impact test:
Diameter is used to be tested for the variable cross-section SHPB device of 74mm, high pressure nitrogen drives projectile impact incident bar,
One-dimension stress wane is generated in incident bar, wave generates transmitted wave in incident bar generation back wave, transmission bar after propagating arrival test specimen.
Test specimen is approximate in impact process to keep one-dimensional plane stress state, and dynamic strain indicator has recorded incident bar, strains in transmission bar
The curve changed over time, is handled by program, and strain rate and load-deformation curve of the test specimen in impact process can be obtained.
Falling weight impact test:
The well double-edged fine-toothed comb being prepared is placed in concrete to fling on experiment loading unit, determines height repeatedly certainly using dropping hammer
Impact load is applied by the mode to fall, the quality dropped hammer is 0.875kg, and the height of free-falling is 300mm, drop impact frequency
Rate is 5s/ times.
The PVA fiber concrete tensile stress-strain relation curve of the embodiment 1 preparation is as shown in figure 4, well double-edged fine-toothed comb is whole
(after being laid with carbon fiber mesh fabric) due to having more significant strain-hardening property, what uniaxial tensile strain can be stable reaches
To 5%~6%, and there is stronger shock resistance, just start under 450 drop impacts to generate crack, reach fine fisssure without
Scattered state.And normal concrete is smashed by 5,6 Secondary Shocks.
Embodiment 2
It is grouped as with the material of being distinguished as embodiment 1, the concrete body 1 by the group of following parts by weight: cement 1.2
Part, 1.3 parts of flyash, 0.6 part of sand, 0.0015 part of hydroxypropyl methyl cellulose thickener, 0.009 part of polycarboxylic acids dehydragent,
0.384 part of water, the volume volume of vinal is the 2% of concrete body total volume.
Due to having more significant strain-hardening property, what uniaxial tensile strain can be stable reaches the well double-edged fine-toothed comb of preparation
To 5%~5.5%, and there is stronger shock resistance, just start under 420 drop impacts to generate crack, reach fine fisssure and
Not scattered state.
Embodiment 3
It is grouped as with the material of being distinguished as embodiment 1, the concrete body 1 by the group of following parts by weight: cement 1.1
Part, 1.4 parts of flyash, 0.7 part of sand, 0.002 part of hydroxypropyl methyl cellulose thickener, 0.01 part of polycarboxylic acids dehydragent, water
0.4 part, the volume volume of vinal is the 2% of concrete body total volume.
Due to having more significant strain-hardening property, what uniaxial tensile strain can be stable reaches the well double-edged fine-toothed comb of preparation
To 5%~5.5%, and there is stronger shock resistance, just start under 410 drop impacts to generate crack, reach fine fisssure and
Not scattered state.
Embodiment 4
It is grouped as with the material of being distinguished as embodiment 1, the concrete body 1 by the group of following parts by weight: cement 1.1
Part, 1.3 parts of flyash, 0.7 part of sand, 0.001 part of hydroxypropyl methyl cellulose thickener, 0.009 part of polycarboxylic acids dehydragent, water
0.4 part, the volume volume of vinal is the 2% of concrete body total volume.
Due to having more significant strain-hardening property, what uniaxial tensile strain can be stable reaches the well double-edged fine-toothed comb of preparation
To 5%~5.5%, and there is stronger shock resistance, just start under 400 drop impacts to generate crack, reach fine fisssure and
Not scattered state.
Comparative example 1
It is grouped as with the material of being distinguished as embodiment 4, the concrete body 1 by the group of following parts by weight: cement 1.1
Part, 1.7 parts of flyash, 0.9 part of sand, 0.001 part of hydroxypropyl methyl cellulose thickener, 0.009 part of polycarboxylic acids dehydragent, water
0.4 part, the volume volume of vinal is the 2% of concrete body total volume.
By identical drop weight test, begin to generate crack under 310 drop impacts.
Comparative example 2
It is grouped as with the material of being distinguished as embodiment 3, the concrete body 1 by the group of following parts by weight: cement 1.1
Part, 1.3 parts of flyash, 0.7 part of sand, 0.003 part of hydroxypropyl methyl cellulose thickener, 0.011 part of polycarboxylic acids dehydragent, water
0.4 part, the volume volume of vinal is the 2% of concrete body total volume.
By identical drop weight test, begin to generate crack under 350 drop impacts.
Comparative example 3
With being distinguished as embodiment 3, without being laid with carbon fiber mesh fabric in the comparative example, by identical drop weight test,
It begins to generate crack under 270 drop impacts.
Comparative example 4
The basis material of the well double-edged fine-toothed comb of preparation is GRC material, proportion are as follows: aggregate-to-cement ratio 1:2-1:2.5, lime ratio 1:10-
1:14, ratio of mud 0.34-0.37, ash are fine than being 0.003-0.006,107 glue 0.3%-0.4%.
The uniaxial tensile strain of the well double-edged fine-toothed comb of preparation can be 3%~4.5%, by identical drop weight test, drop hammer for 150 times
It begins to generate crack under impact.
The foregoing is merely preferred embodiment of the present application, are not intended to limit this application, for the skill of this field
For art personnel, various changes and changes are possible in this application.Within the spirit and principles of this application, made any to repair
Change, equivalent replacement, improvement etc., should be included within the scope of protection of this application.
Claims (8)
1. a kind of impact resistance well double-edged fine-toothed comb, it is characterised in that: including concrete body and the carbon for being laid on concrete body bottom
The material of fibrous mesh cloth, the concrete body is composed of the following components: cement 1-1.2 parts by weight, flyash 1.2-1.4 weight
Measure part, sand 0.6-0.8 parts by weight, thickener 0.001-0.002 parts by weight, water-reducing agent 0.009-0.01 parts by weight, water 0.3-0.4
Parts by weight, vinal；Vinal accounts for the 1%-2% of concrete body total volume, and the thickener is fiber
Plain class thickener, the water-reducing agent are polycarboxylic acids dehydragent；
The carbon fiber mesh fabric with a thickness of 4-6mm.
2. impact resistance well double-edged fine-toothed comb according to claim 1, it is characterised in that: the material of the concrete body is by following
The group of parts by weight is grouped as: cement 1-1.1 parts by weight, flyash 1.2-1.3 parts by weight, sand 0.7-0.8 parts by weight, thickener
0.001 parts by weight, water-reducing agent 0.0095-0.01 parts by weight, 0.384 parts by weight of water, vinal；Vinal accounts for
The 2% of concrete body total volume.
3. impact resistance well double-edged fine-toothed comb according to claim 2, it is characterised in that: the material of the concrete body is by following
The group of parts by weight is grouped as: 1 parts by weight of cement, 1.2 parts by weight of flyash, 0.8 parts by weight of sand, and 0.001 parts by weight of thickener subtract
0.0096 parts by weight of aqua, 0.384 parts by weight of water, vinal；Vinal accounts for concrete body total volume
2%.
4. impact resistance well double-edged fine-toothed comb according to claim 1 to 3, it is characterised in that: the thickener is hydroxypropyl first
Base cellulose.
5. impact resistance well double-edged fine-toothed comb according to claim 1 to 3, it is characterised in that: the row of being provided on the well double-edged fine-toothed comb
Water hole.
6. the production method of any impact resistance well double-edged fine-toothed comb of claim 1-5, characterized by the following steps:
1) cement, flyash, thickener and sand are poured into and carries out dry mixing in blender；
2) after the completion of dry mixing, water and water-reducing agent is added into mixture, stirs to get cement matrix；
3) PVA fiber is added into cement matrix, is then stirred, obtains PVA fiber concrete；
4) well double-edged fine-toothed comb template is placed on a vibration table, then is laid on template bottom for carbon fiber mesh fabric is smooth, by PVA fiber
Concrete pours into template, and the vibration settings time is formed, and light plastering is received after molding, and well double-edged fine-toothed comb is made in demoulding.
7. production method according to claim 6, it is characterised in that: in step 4), the time of vibration moulding is 2-4min.
8. a kind of impact resistance well lid, it is characterised in that: it includes concrete body described in claim 1 and is laid on concrete
The carbon fiber mesh fabric of body bottom portion.
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| CN201710148943.2A CN106946506B (en) | 2017-03-14 | 2017-03-14 | A kind of impact resistance well double-edged fine-toothed comb, well lid |
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| CN201710148943.2A CN106946506B (en) | 2017-03-14 | 2017-03-14 | A kind of impact resistance well double-edged fine-toothed comb, well lid |
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| CN106946506A CN106946506A (en) | 2017-07-14 |
| CN106946506B true CN106946506B (en) | 2019-04-09 |
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| CN205934987U (en) * | 2016-08-26 | 2017-02-08 | 维特国际新材料（武汉）有限公司 | Well lid |
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