CN110041032A - Cold area's cement concrete pavement facing thin layer fast repairing method - Google Patents
Cold area's cement concrete pavement facing thin layer fast repairing method Download PDFInfo
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- CN110041032A CN110041032A CN201910472663.6A CN201910472663A CN110041032A CN 110041032 A CN110041032 A CN 110041032A CN 201910472663 A CN201910472663 A CN 201910472663A CN 110041032 A CN110041032 A CN 110041032A
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- 238000000034 method Methods 0.000 title claims abstract description 26
- 239000004568 cement Substances 0.000 title claims abstract description 22
- 239000004567 concrete Substances 0.000 title claims abstract description 22
- 239000000463 material Substances 0.000 claims abstract description 25
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 18
- 238000003801 milling Methods 0.000 claims abstract description 14
- 230000036541 health Effects 0.000 claims abstract description 12
- 239000004744 fabric Substances 0.000 claims abstract description 11
- 239000011888 foil Substances 0.000 claims abstract description 8
- 229920003023 plastic Polymers 0.000 claims abstract description 8
- 239000004033 plastic Substances 0.000 claims abstract description 8
- 238000004080 punching Methods 0.000 claims abstract description 7
- 239000003818 cinder Substances 0.000 claims abstract description 4
- 238000001723 curing Methods 0.000 claims abstract description 4
- 238000009415 formwork Methods 0.000 claims abstract description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 16
- 239000006004 Quartz sand Substances 0.000 claims description 12
- 239000000843 powder Substances 0.000 claims description 7
- 239000000835 fiber Substances 0.000 claims description 5
- 229920002239 polyacrylonitrile Polymers 0.000 claims description 5
- 239000000203 mixture Substances 0.000 claims description 4
- 239000004576 sand Substances 0.000 claims description 4
- CBOCVOKPQGJKKJ-UHFFFAOYSA-L Calcium formate Chemical compound [Ca+2].[O-]C=O.[O-]C=O CBOCVOKPQGJKKJ-UHFFFAOYSA-L 0.000 claims description 3
- 239000004372 Polyvinyl alcohol Substances 0.000 claims description 3
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 3
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 229940044172 calcium formate Drugs 0.000 claims description 3
- 235000019255 calcium formate Nutrition 0.000 claims description 3
- 239000004281 calcium formate Substances 0.000 claims description 3
- 230000007717 exclusion Effects 0.000 claims description 3
- 239000010881 fly ash Substances 0.000 claims description 3
- JRZJOMJEPLMPRA-UHFFFAOYSA-N olefin Natural products CCCCCCCC=C JRZJOMJEPLMPRA-UHFFFAOYSA-N 0.000 claims description 3
- 229920002451 polyvinyl alcohol Polymers 0.000 claims description 3
- 238000010992 reflux Methods 0.000 claims description 3
- 239000010865 sewage Substances 0.000 claims description 3
- 239000011863 silicon-based powder Substances 0.000 claims description 3
- 239000011734 sodium Substances 0.000 claims description 3
- 229910052708 sodium Inorganic materials 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 claims description 2
- 239000011398 Portland cement Substances 0.000 claims description 2
- 150000001336 alkenes Chemical class 0.000 claims description 2
- 239000003638 chemical reducing agent Substances 0.000 claims description 2
- 238000007599 discharging Methods 0.000 claims description 2
- 238000011010 flushing procedure Methods 0.000 claims description 2
- 238000002955 isolation Methods 0.000 claims description 2
- 229920005646 polycarboxylate Polymers 0.000 claims description 2
- 230000002265 prevention Effects 0.000 claims description 2
- 230000000717 retained effect Effects 0.000 claims description 2
- 239000007787 solid Substances 0.000 claims description 2
- BDHFUVZGWQCTTF-UHFFFAOYSA-M sulfonate Chemical compound [O-]S(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-M 0.000 claims description 2
- 238000009827 uniform distribution Methods 0.000 claims description 2
- WUGQZFFCHPXWKQ-UHFFFAOYSA-N Propanolamine Chemical compound NCCCO WUGQZFFCHPXWKQ-UHFFFAOYSA-N 0.000 claims 1
- 238000010276 construction Methods 0.000 abstract description 5
- 238000012423 maintenance Methods 0.000 description 5
- 230000006378 damage Effects 0.000 description 4
- 239000002002 slurry Substances 0.000 description 3
- SLINHMUFWFWBMU-UHFFFAOYSA-N Triisopropanolamine Chemical compound CC(O)CN(CC(C)O)CC(C)O SLINHMUFWFWBMU-UHFFFAOYSA-N 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 239000002253 acid Substances 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000010426 asphalt Substances 0.000 description 1
- 230000003796 beauty Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000003467 diminishing effect Effects 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012407 engineering method Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 210000003746 feather Anatomy 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- -1 olefin sulfonate Chemical class 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000003469 silicate cement Substances 0.000 description 1
- RMAQACBXLXPBSY-UHFFFAOYSA-N silicic acid Chemical compound O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- GOLXNESZZPUPJE-UHFFFAOYSA-N spiromesifen Chemical compound CC1=CC(C)=CC(C)=C1C(C(O1)=O)=C(OC(=O)CC(C)(C)C)C11CCCC1 GOLXNESZZPUPJE-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
- C04B2111/00482—Coating or impregnation 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
- C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
- C04B2111/0075—Uses not provided for elsewhere in C04B2111/00 for road construction
-
- 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
- C04B2111/72—Repairing or restoring existing buildings or building 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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Road Paving Structures (AREA)
- Road Repair (AREA)
Abstract
The embodiment of the invention discloses a kind of cold area's cement concrete pavement facing thin layer fast repairing methods, and the method includes the following steps: milling, scarfing cinder；Giant rinses；Clear water infiltrates milling face；Scene carries out the cloth that paves, and controls paving thickness with the two sides punching block fixed in advance, and cloth is completed in 30min；It is forward struck off with darby to formwork elevation measuring；Soft thin plastic foil is covered after final set, is maintained 2-3 days；It takes plastic foil off, delineates non-slip groove, it can open to traffic；Thereafter it sprinkles water daily in 3-4 days 2 wet curings, the daily upper and lower noon is each primary.The quick reparation that this method is undisguisedly damaged for cement concrete pavement decortication, consumptive material dosage is small, easy for construction, short the time required to health, meets the needs of rapid repairing road surface.
Description
Technical field
The present invention relates to pavement construction technical fields, and in particular to a kind of cold area's cement concrete pavement facing thin layer is quick
Method for repairing and mending.
Background technique
The cement concrete pavement of northern China Han Qu (such as Heilongjiang Province), in season alternation, deicing salt and driving
Under the influence of the composite factor of heavy-duty vehicle frequently acted on, commonly using less than 1 year or in two years, there have been different journeys
The decortication of degree undisguisedly damages.Take the form of: cement concrete pavement surface fine aggregate scatters and disappears, coarse aggregate exposes, and area is in 1m2
More than.Although the problem of this destruction is not pavement structure, its requirement for influencing driving flatness and driving comfort, greatly
Ground shortens the service life on road surface；In addition, having an effect on road surface beauty.
China existing " highway cement concrete pavement maintenance technology specification (JTJ 073.1-2001) " and " highway cement
Concrete road surface design specification " regulation, the modified pitch that such disease generallys use 20-40mm thickness are dilute in (JTG D40-2011)
The Concrete Overlay of slurry sealing or at least 80mm thickness is punished.
Slurry seal is to stir emulsified asphalt, the aggregate for meeting gradation, water, filler and additive by certain design proportion
Slurry mixture is mixed, is equably paved on road surface to be processed, need to be wrapped, be demulsified, bleed, the processes such as evaporation and solidification
It is firmly combined together with former road surface, construction method is more complex, and the used time is longer.It is designed according to Concrete Overlay,
It is required that overlay thickness not be preferably less than 80mm, and milling or feather plucking cleaning after surface apply adhesive, make overlay with it is old
Concrete topping combines integral；Man-hour requirement is applied sufficiently to vibrate and strike off；Watering health at least 14 days, daily watering 3~4
It is secondary.
Above-mentioned existing Cement Concrete Pavement Maintenance method, there are consumptive material demand is big, needed for engineering method complexity and health
The problems such as time is long is unfavorable for that maintenance task is rapidly completed and realizes the purpose that quickly resumes traffic, be further improved.
Summary of the invention
The embodiment of the present invention is designed to provide a kind of cold area's cement concrete pavement facing thin layer fast repairing method,
To solve the above problem of existing Cement Concrete Pavement Maintenance method.It is used for the undisguised damage of cement concrete pavement decortication
Quick reparation, consumptive material dosage is small, easy for construction, short the time required to health, meets the needs of rapid repairing road surface.
To achieve the above object, the embodiment of the present invention provides a kind of cold area's cement concrete pavement facing thin layer Rapid-Repair
Method, the method includes the following steps:
(1) cement pavement is peeled undisguised region, after milling 10-20mm depth, scarfing cinder；
(2) it is rinsed with giant, and sewage exclusion is prevented into reflux；
(3) it is infiltrated milling face 4-6 hours with clear water, is sufficiently humidified so as to milling face；
(4) cloth that paves, paving thickness 10-20mm, with thing are carried out at the scene with the facing thin layer quick service material mixed
The two sides punching block control paving thickness first fixed, and cloth is completed in 30min；
(5) the heavy wall channel steel for using length to be greater than the face that paves forward strikes off as darby to formwork elevation measuring；It is covered after final set soft
Thin plastic foil, surrounding compress Anti-blow-open and start, and maintain 2-3 days；
(6) it takes plastic foil after overlay film health 2-3 days off, delineates non-slip groove, it can open to traffic；Thereafter every in 3-4 days
Day 2 wet curings of watering, daily upper and lower noon are each primary.
Traffic circulation is not influenced during watering health.
Further, the facing thin layer quick service material includes following component based on parts by weight: P.O.42.5 silicate cement
95-105 parts of quartz sand of 390-410 parts of mud, partial size 1.18-2.36mm；290-310 parts of the quartz sand of partial size 0.3-1.18mm；
And 190-210 parts of the quartz sand of partial size 0.15-0.3mm, 7-9 parts of basalt miberal powder, 9-9.8 parts of silicon powder, flyash 3-3.8
Part, 0.2-0.6 parts of TH-928 polycarboxylate water-reducer, 6-9 parts of calcium formate, 6-8 parts of triisopropanolamine, α -5-9 parts of sodium olefin sulfonate,
0.3-0.8 parts of polyvinyl alcohol, 0.6-1.0 parts of length 15-25mm polyacrylonitrile fibre.
Further, the quartz sand is the middle sand of fineness modulus 2.6-2.9, and also meets and following tail over percentage to accumulative
The requirement of rate: accumulative to tail over 11.4-12.6% for square hole mesh size 2.36mm；For square hole mesh size 1.18mm, add up sieve
Remaining 28.5-31.5%；It is accumulative to tail over 55.1-60.9% for square hole mesh size 0.6mm；For square hole mesh size 0.3mm, tire out
Meter tails over 77.0-85.1；It is accumulative to tail over 90.3-99.8% for square hole mesh size 0.15mm.
Further, the preferred 20mm of the length of the polyacrylonitrile fibre；And diameter is 6-7dtex, preferably 6.7dtex.
Further, the flushing pressure of step (2) high-pressure gun is 15-20Mpa.
Further, the mix of facing thin layer quick service material described in step (4) includes the following steps: dry powder-shaped facing is thin
Layer quick service material is put into forced mixer, and the water of 10-12% is added, and the slump is controlled in 270-290mm, blender revolution
Control stirs 90-120 seconds at 45-57 revs/min, reaches no dry powder block, can exit in flow regime.
Further, if discharging height is higher than 2 meters, chute or chute, prevention and treatment isolation are used.
Further, the facing thin layer quick service material mixed scene is sent in 5 minutes to pave.
Further, in step (4), in the punching block region of two sides, it will expect that cloth is even with wooden T-shape pusher；Or it is artificial
It is scooped up with spade along milling basal plane, detains spade uniform distribution.Forbid from the top pusher for unloading material heap or pinch material.
Further, the width of non-slip groove is 2-4mm, spacing 16-23mm in step (6)；Preferable width is 3mm,
Away from 20mm.
The technical solution of the embodiment of the present invention has the advantages that
1, quickly: be open to traffic use for 2-3 days；It is long-acting: durability 4 years or more；Safety: maintenance work risk is small；
2, material saving and with water: paving thickness only has 10-20mm, and materials are few, without vibration, saves equipment investment expense, property
Valence is than high；Mixing water amount is small, only 10-12%, (the mixing water amount of portland cement concrete is generally 18-24%), supports
Anhydrous overlay film health in 2-3 days before death is sprinkled water health 3-4 days after open to traffic, and daily morning and afternoon respectively sprinkles water once；
3, environmentally friendly: scene is not necessarily to sand, building stones heap, and defined water consumption is added in bagged dry powder material and mixes thoroughly and can pave, right
Environmental pollution is small.
Specific embodiment
Embodiments of the present invention are illustrated by particular specific embodiment below, those skilled in the art can be by this explanation
Content disclosed by book is understood other advantages and efficacy of the present invention easily, it is clear that described embodiment is the present invention one
Section Example, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art are not doing
Every other embodiment obtained under the premise of creative work out, shall fall within the protection scope of the present invention.
Embodiment 1
The area the present embodiment Zhong Han cement concrete pavement facing thin layer fast repairing method includes the following steps:
(1) cement pavement is peeled undisguised region, after milling 18mm depth, scarfing cinder；
(2) it is rinsed with giant with the water of 15-20Mpa, and sewage exclusion is prevented into reflux；
(3) milling face is infiltrated 5 hours with clear water, be sufficiently humidified so as to milling face；
(4) cloth that paves, paving thickness 18mm, with solid in advance are carried out at the scene with the facing thin layer quick service material mixed
The two sides punching block control paving thickness set, and cloth is completed in 30min；
(5) the heavy wall channel steel for using length to be greater than the face that paves forward strikes off as darby to formwork elevation measuring；It is covered after final set soft
Thin plastic foil, surrounding compress Anti-blow-open and start, and maintain 3 days；
(6) plastic foil is taken in overlay film health off after 3 days, delineates non-slip groove, can open to traffic；Thereafter it is spilt daily in 4 days
2 wet curings of water, daily upper and lower noon are each primary.
Traffic circulation is not influenced during watering health.
Wherein, the facing thin layer quick service material (dry powder-shaped) includes following component: P.O.42.5 silicic acid based on parts by weight
400 parts of salt cement；100 parts of the quartz sand of partial size 1.18-2.36mm, 300 parts of the quartz sand of partial size 0.3-1.18mm and partial size
200 parts of the quartz sand of 0.15-0.3mm；8 parts of basalt miberal powder, 9.4 parts of silicon powder, 6.4 parts of flyash, TH-928 polycarboxylic acids diminishing
0.4 part of agent, 7.5 parts of calcium formate, 7 parts of triisopropanolamine, 7 parts of α-sodium olefin sulfonate, 0.5 part of polyvinyl alcohol, length 20mm and straight
Diameter is 0.8 part of polyacrylonitrile fibre of 6.7dtex.
Embodiment 2
On the basis of embodiment 1, further, in the facing thin layer quick service material, the quartz sand is the embodiment
The middle sand of fineness modulus 2.8, and also meet the following requirement to accumulated retained percentage: for square hole mesh size 2.36mm, tire out
Meter tails over 12.3%；It is accumulative to tail over 30.2% for square hole mesh size 1.18mm；It is accumulative to tail over for square hole mesh size 0.6mm
58.5%；It is accumulative to tail over 81.7 for square hole mesh size 0.3mm；It is accumulative to tail over 98.3% for square hole mesh size 0.15mm.
Embodiment 3
The embodiment is on the basis of embodiment 2, further, the mix of facing thin layer quick service material described in step (4)
Include the following steps: to put into dry powder-shaped facing thin layer quick service material in forced mixer, 10% water, slump control is added
In 280mm, blender revolution is controlled at 52 revs/min system, is stirred 110 seconds, is reached no dry powder block, is in that flow regime is i.e. detachable
Out.
The facing thin layer quick service material mixed is sent to scene in 5 minutes to pave.
Embodiment 4
The embodiment is on the basis of embodiment 3, and further, in step (4), in the punching block region of two sides, use is wooden
T-shape pusher will expect that cloth is even；The width of non-slip groove is 3mm, spacing 20mm in step (6).
Cold area's cement concrete pavement facing thin layer fast repairing method of above-described embodiment is used for cement concrete pavement
The quick reparation that decortication undisguisedly damages, consumptive material dosage is small, easy for construction, short the time required to health, meets rapid repairing road surface
It needs.
Although above having used general explanation and specific embodiment, the present invention is described in detail, at this
On the basis of invention, it can be made some modifications or improvements, this will be apparent to those skilled in the art.Therefore,
These modifications or improvements without departing from theon the basis of the spirit of the present invention are fallen within the scope of the claimed invention.
Claims (10)
1. a kind of cold area's cement concrete pavement facing thin layer fast repairing method, which is characterized in that the method includes following
Step:
(1) cement pavement is peeled undisguised region, after milling 10-20mm depth, scarfing cinder；
(2) it is rinsed with giant, and sewage exclusion is prevented into reflux；
(3) it is infiltrated milling face 4-6 hours with clear water, is sufficiently humidified so as to milling face；
(4) cloth that paves, paving thickness 10-20mm, with solid in advance are carried out at the scene with the facing thin layer quick service material mixed
The two sides punching block control paving thickness set, and cloth is completed in 30min；
(5) the heavy wall channel steel for using length to be greater than the face that paves forward strikes off as darby to formwork elevation measuring；It is covered after final set soft thin
Plastic foil, surrounding compress Anti-blow-open and start, and maintain 2-3 days；
(6) it takes plastic foil after overlay film health 2-3 days off, delineates non-slip groove, it can open to traffic；Thereafter it is spilt daily in 3-4 days
2 wet curings of water, daily upper and lower noon are each primary.
2. fast repairing method according to claim 1, which is characterized in that the facing thin layer quick service material is with parts by weight
Meter includes following component: 95-105 parts of quartz sand of 390-410 parts of P.O.42.5 portland cement, partial size 1.18-2.36mm；Grain
290-310 parts of the quartz sand of diameter 0.3-1.18mm；And 190-210 parts of the quartz sand of partial size 0.15-0.3mm, basalt miberal powder
7-9 parts, it is 9-9.8 parts of silicon powder, 3-3.8 parts of flyash, 0.2-0.6 parts of TH-928 polycarboxylate water-reducer, 6-9 parts of calcium formate, three different
6-8 parts of Propanolamine, α -5-9 parts of sodium olefin sulfonate, 0.3-0.8 parts of polyvinyl alcohol, length 15-25mm polyacrylonitrile fibre 0.6-
1.0 part.
3. fast repairing method according to claim 2, which is characterized in that the quartz sand is fineness modulus 2.6-2.9
Middle sand, and also meet the following requirement to accumulated retained percentage: accumulative to tail over 11.4- for square hole mesh size 2.36mm
12.6%；It is accumulative to tail over 28.5-31.5% for square hole mesh size 1.18mm；It is accumulative to tail over for square hole mesh size 0.6mm
55.1-60.9%；It is accumulative to tail over 77.0-85.1 for square hole mesh size 0.3mm；For square hole mesh size 0.15mm, add up sieve
Remaining 90.3-99.8%.
4. fast repairing method according to claim 3, which is characterized in that the length of the polyacrylonitrile fibre is
20mm；And diameter is 6.7dtex.
5. fast repairing method according to claim 1, which is characterized in that the flushing pressure of step (2) high-pressure gun
For 15-20Mpa.
6. fast repairing method according to claim 1, which is characterized in that facing thin layer quick service material described in step (4)
Mix include the following steps: to put into dry powder-shaped facing thin layer quick service material in forced mixer, be added 10-12%'s
Water, in 270-290mm, blender revolution is controlled at 45-57 revs/min for slump control, is stirred 90-120 seconds, is reached no dry powder
Block can exit in flow regime.
7. fast repairing method according to claim 6, which is characterized in that if discharging height is higher than 2 meters, use chute
Or chute, prevention and treatment isolation.
8. fast repairing method according to claim 6 or 7, which is characterized in that the facing thin layer quick service material that will be mixed
Scene is sent in 5 minutes to pave.
9. fast repairing method according to claim 1, which is characterized in that in step (4), in the punching block region of two sides,
It will expect that cloth is even with wooden T-shape pusher；Or manually scooped up with spade along milling basal plane, detain spade uniform distribution.
10. fast repairing method according to claim 1, which is characterized in that the width of non-slip groove is 2- in step (6)
4mm, spacing 16-23mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910472663.6A CN110041032A (en) | 2019-05-31 | 2019-05-31 | Cold area's cement concrete pavement facing thin layer fast repairing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910472663.6A CN110041032A (en) | 2019-05-31 | 2019-05-31 | Cold area's cement concrete pavement facing thin layer fast repairing method |
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| Publication Number | Publication Date |
|---|---|
| CN110041032A true CN110041032A (en) | 2019-07-23 |
Family
ID=67284382
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910472663.6A Pending CN110041032A (en) | 2019-05-31 | 2019-05-31 | Cold area's cement concrete pavement facing thin layer fast repairing method |
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| Country | Link |
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| CN (1) | CN110041032A (en) |
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Application publication date: 20190723 |