CN106747210A - A kind of method of cracking resistance quick-drying pavement patching material - Google Patents
A kind of method of cracking resistance quick-drying pavement patching material Download PDFInfo
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- CN106747210A CN106747210A CN201611211676.0A CN201611211676A CN106747210A CN 106747210 A CN106747210 A CN 106747210A CN 201611211676 A CN201611211676 A CN 201611211676A CN 106747210 A CN106747210 A CN 106747210A
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- Prior art keywords
- added
- silica gel
- patching material
- pavement patching
- crack
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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
- C04B28/24—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 alkyl, ammonium or metal silicates; containing silica sols
-
- 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
- C04B14/00—Use of inorganic materials as fillers, e.g. pigments, for mortars, concrete or artificial stone; Treatment of inorganic materials specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B14/02—Granular materials, e.g. microballoons
- C04B14/30—Oxides other than silica
- C04B14/304—Magnesia
-
- 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
- C04B20/00—Use of materials as fillers for mortars, concrete or artificial stone according to more than one of groups C04B14/00 - C04B18/00 and characterised by shape or grain distribution; Treatment of materials according to more than one of the groups C04B14/00 - C04B18/00 specially adapted to enhance their filling properties in mortars, concrete or artificial stone; Expanding or defibrillating materials
- C04B20/02—Treatment
- C04B20/04—Heat treatment
-
- 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 present invention relates to a kind of method of cracking resistance quick-drying pavement patching material, belong to pavement patching material preparing technical field.After magnesite crush by the present invention, calcined in the atmosphere of hydrogen and oxygen respectively, through ball milling, obtain modified magnesite mineral dust, again by silica gel with after being reacted with chloropropyl trichloro-silane after acid soak, continue and bisphenol A epoxide resin reaction, after obtaining reactant, it is cleaned, dry, obtain silica gel compound, finally by modified magnesite stone powder, silica gel compound, the material mixings such as flyash, can obtain pavement patching material, pavement patching material compression strength prepared by the present invention reaches more than 54MPa, rupture strength reaches more than 10.5MPa, crack after repairing is not easy to crack；Curing time only needs 6~8h, substantially reduces the road closed time, has broad application prospects.
Description
Technical field
The present invention relates to a kind of method of cracking resistance quick-drying pavement patching material, belong to pavement patching material technology of preparing neck
Domain.
Background technology
The phenomenon that concrete is destroyed in the civil engineerings such as discovered in recent years airport, road, bridge is on the increase, and causes
Economic loss directly or indirectly is huge.Its reason is except concrete durability when use environment condition becomes harsh and design
It is bad outer, with construction management not enough, blindness pursuit progress, the factor such as even use inferior materials and turn out substandard goods also have much relations.Therefore, in order to the greatest extent
Pipe recovers the use function of these concrete structures and ensures safety in utilization, it is necessary to they are repaired in time.
The patching material of cement concrete cracks is usually flexible material, such as PVC cement, pitch, rubber
Deng.These materials are only capable of reaching the effect in closure crack, it is impossible to which the wall of supporting crack two is so as to cannot function as entirety and both sides road surface
The common stress of plate, so crack can be caused to spread and expand when the wall of vehicle fracture two has pressure；Further, since these materials
Contraction, dilatancy with cement concrete material differ greatly, and cause its summer to be easily extruded, and the material being extruded is in wheel
In the presence of come off from original place, produce larger space to be failed so as to joint sealing material when cold weather concrete panel shrinks, at crack；And
And, because flexible patching material and cement concrete pavement colour contrast are big, black line is formed after perfusion on road surface, more seriously
The performance on ground influence road surface.
The content of the invention
The technical problems to be solved by the invention：Shunk for traditional pavement patching material and cement concrete material,
Dilatancy differs greatly, and causes its easy to crack, and the problem that the repairing time cycle is long, there is provided repair on a kind of cracking resistance quick-drying road surface
The method for mending material, after magnesite crush by the present invention, is calcined, through ball in the atmosphere of hydrogen and oxygen respectively
Mill, obtains modified magnesite mineral dust, then silica gel is continued with after being reacted with chloropropyl trichloro-silane after acid soak after reaction
With bisphenol A epoxide resin reaction, after obtaining reactant, it is cleaned, dry, obtain silica gel compound, finally by modified magnesite stone powder,
The material mixings such as silica gel compound, flyash, you can obtain pavement patching material, the present invention addition modified silica-gel and epoxy resin
Reactant, the differences in expansion with cement concrete material can be effectively reduced, embrittlement is difficult at low ambient temperatures, improve road
Surface intensity, is less prone to cracking and the phenomenon for coming off, and rate of drying is fast, and the repairing time is short.
In order to solve the above technical problems, the technical solution adopted by the present invention is：
（1）400~500g magnesites are weighed, broken, 40~50 mesh sieves excessively in disintegrating machine are added to, magnesite particle is obtained, by water chestnut
Magnesite particle is added in Muffle furnace, and with 0.3~0.5m3/ min intake hydrogen, is passed through simultaneously with 15~20 DEG C/min liters
To 600~800 DEG C, stopping is passed through hydrogen to temperature, after 20~30min of insulation calcining, 850~1000 DEG C is warming up to after calcining, heats up
Oxygen is passed through simultaneously, and intake is 0.3~0.5m3/ min, 50~70min of insulation calcining stops being passed through oxygen, is cooled down after calcining
To room temperature, calcined material is obtained, added in ball mill, the specific surface area for being milled to calcined material is 500~700m2/ kg, obtains modified magnesite
Stone powder, it is standby；
（2）Weigh 80~100g silica gel, in mass ratio 1:10 are added in the hydrochloric acid of mass fraction 3% silica gel, soak 5~10min
Afterwards, filter residue is filtered to obtain, by filter residue in mass ratio 1:2 are added in chloropropyl trichloro-silane, 10~12h of stirring reaction, after reaction
Filter residue is filtered to obtain, after filter residue 2~4 times is washed with deionized, is put into baking oven, 2~4h is dried at 90~100 DEG C, obtain dry
Dry thing；
（3）Weigh 200~250g bisphenol A epoxide resins E-51 to be added in 150~180g toluene, 20~30min of stirring mixing
Afterwards, the above-mentioned dried objects of 60~70g and 1~3g NaOH are added, 60~80 DEG C are warming up to, 4~6h of stirring reaction, reaction terminates
After filter, obtain filter cake, washed with the sulfuric acid solution of mass fraction 50%, deionized water and the sodium hydroxide solution of mass fraction 25% successively
Filter cake 3~5 times, is put into baking oven after washing, and 8~10h is dried at 100~105 DEG C, obtains silica gel compound；
（4）Count by weight, 60~70 parts of steps are chosen respectively（1）Standby modified magnesite stone powder, 30~40 parts of silica gel
Compound, 5~10 parts of flyash, 0.3~0.5 part of diethylenetriamine, 0.1~0.3 part of zeolite and 3~5 parts of lignin, stirring are mixed
Pavement patching material is obtained after closing uniformly.
Application process of the invention：Pavement crack first by required repairing is cleared up, after the disintegrating slag in removal crack,
Pavement patching material prepared by the present invention is cast in the pavement crack after cleaning, through compacting, is struck off, it is flushed with road surface
Afterwards, 6~8h of natural curing is carried out to it.After testing, the crack compression strength after repairing reaches more than 54MPa, and anti-folding is strong
Degree reaches more than 10.5MPa, and the crack after repairing is not easy to crack.
Compared with other method, Advantageous Effects are the present invention：
（1）Pavement patching material compression strength prepared by the present invention reaches more than 54MPa, and rupture strength reaches more than 10.5MPa,
Crack after repairing is not easy to crack；
（2）Pavement patching material curing time prepared by the present invention only needs 6~8h, substantially reduces the road closed time；
（3）Pavement patching material preparation process prepared by the present invention is simple, and required low cost has broad application prospects.
Specific embodiment
400~500g magnesites are weighed, broken, 40~50 mesh sieves excessively in disintegrating machine are added to, magnesite particle is obtained, by water chestnut
Magnesite particle is added in Muffle furnace, and with 0.3~0.5m3/min intake hydrogen, is passed through simultaneously with 15~20 DEG C/min liters
To 600~800 DEG C, stopping is passed through hydrogen to temperature, after 20~30min of insulation calcining, 850~1000 DEG C is warming up to after calcining, heats up
Oxygen is passed through simultaneously, and intake is 0.3~0.5m3/ min, 50~70min of insulation calcining stops being passed through oxygen, is cooled down after calcining
To room temperature, calcined material is obtained, added in ball mill, the specific surface area for being milled to calcined material is 500~700m2/ kg, obtains modified magnesite
Stone powder, it is standby；80~100g silica gel, in mass ratio 1 are weighed again:10 are added in the hydrochloric acid of mass fraction 3% silica gel, immersion 5
After~10min, filter residue is filtered to obtain, by filter residue in mass ratio 1:2 are added in chloropropyl trichloro-silane, 10~12h of stirring reaction,
Filter residue is filtered to obtain after reaction, after filter residue 2~4 times is washed with deionized, is put into baking oven, dry 2 at 90~100 DEG C~
4h, obtains dried object；Then weigh 200~250g bisphenol A epoxide resins E-51 to be added in 150~180g toluene, stirring mixing
After 20~30min, the above-mentioned dried objects of 60~70g and 1~3g NaOH are added, be warming up to 60~80 DEG C, stirring reaction 4~
6h, reaction is filtered after terminating, and filter cake is obtained, successively with the sulfuric acid solution of mass fraction 50%, deionized water and the hydrogen-oxygen of mass fraction 25%
Change sodium solution washing filter cake 3~5 times, be put into baking oven after washing, 8~10h is dried at 100~105 DEG C, obtain silica gel and be combined
Thing；Finally count by weight, 60~70 parts of standby modified magnesite stone powders, 30~40 parts of silica gel compounds, 5 are chosen respectively
~10 parts of flyash, 0.3~0.5 part of diethylenetriamine, 0.1~0.3 part of zeolite and 3~5 parts of lignin, after being uniformly mixed
Obtain pavement patching material.
Example 1
400g magnesites are weighed, broken, 40 mesh sieves excessively in disintegrating machine are added to, magnesite particle is obtained, magnesite particle is added
To in Muffle furnace, and with 0.3m3/ min intake hydrogen, is passed through and is warming up to 600 DEG C with 15 DEG C/min simultaneously, and stopping is passed through hydrogen
Gas, after insulation calcining 20min, is warming up to 850 DEG C after calcining, heat up and be passed through oxygen simultaneously, and intake is 0.3m3/ min, insulation
Calcining 50min stops being passed through oxygen, and room temperature is cooled to after calcining, obtains calcined material, adds in ball mill, is milled to the ratio of calcined material
Surface area is 500m2/ kg, obtains modified magnesite stone powder, standby；100g silica gel, in mass ratio 1 are weighed again:10 add silica gel
To in the hydrochloric acid of mass fraction 3%, after immersion 10min, filter residue is filtered to obtain, by filter residue in mass ratio 1:2 are added to chloropropyl trichlorine silicon
In alkane, stirring reaction 12h filters to obtain filter residue after reaction, after filter residue 4 times is washed with deionized, is put into baking oven, at 100 DEG C
Under dry 4h, obtain dried object；Then weigh 250g bisphenol A epoxide resins E-51 to be added in 180g toluene, stirring mixing 30min
Afterwards, the above-mentioned dried objects of 70g and 3g NaOH are added, 80 DEG C are warming up to, stirring reaction 6h, reaction are filtered after terminating, and obtains filter cake,
Filter cake is washed with the sulfuric acid solution of mass fraction 50%, deionized water and the sodium hydroxide solution of mass fraction 25% 5 times, after washing successively
It is put into baking oven, 10h is dried at 105 DEG C, obtains silica gel compound；Finally count by weight, choose respectively 70 parts it is standby
Modified magnesite stone powder, 40 parts of silica gel compounds, 10 parts of flyash, 0.5 part of diethylenetriamine, 0.3 part of zeolite and 5 parts are wooden
Element, obtains pavement patching material after being uniformly mixed.
Pavement crack first by required repairing is cleared up, after the disintegrating slag in removal crack, road prepared by the present invention
Face patching material is cast in the pavement crack after cleaning, through compacting, is struck off, and after it is flushed with road surface, nature is carried out to it
Maintenance 8h.After testing, the crack compression strength after repairing reaches 55MPa, and rupture strength reaches 11.5MPa, after repairing
Crack is not easy to crack.
Example 2
450g magnesites are weighed, broken, 45 mesh sieves excessively in disintegrating machine are added to, magnesite particle is obtained, magnesite particle is added
To in Muffle furnace, and with 0.4m3/ min intake hydrogen, is passed through and is warming up to 700 DEG C with 17 DEG C/min simultaneously, and stopping is passed through hydrogen
Gas, after insulation calcining 25min, is warming up to 950 DEG C after calcining, heat up and be passed through oxygen simultaneously, and intake is 0.4m3/ min, insulation
Calcining 60min stops being passed through oxygen, and room temperature is cooled to after calcining, obtains calcined material, adds in ball mill, is milled to the ratio of calcined material
Surface area is 600m2/ kg, obtains modified magnesite stone powder, standby；80g silica gel, in mass ratio 1 are weighed again:10 are added to silica gel
In the hydrochloric acid of mass fraction 3%, after immersion 5min, filter residue is filtered to obtain, by filter residue in mass ratio 1:2 are added to chloropropyl trichloro-silane
In, stirring reaction 10h filters to obtain filter residue after reaction, after filter residue 2 times is washed with deionized, be put into baking oven, is done at 90 DEG C
Dry 2h, obtains dried object；Then 200g bisphenol A epoxide resins E-51 is weighed to be added in 150g toluene, after stirring mixing 20min,
The above-mentioned dried objects of 60g and 3g NaOH are added, 60 DEG C are warming up to, stirring reaction 4h, reaction is filtered after terminating, and obtains filter cake, according to
It is secondary to wash filter cake 3 times with the sulfuric acid solution of mass fraction 50%, deionized water and the sodium hydroxide solution of mass fraction 25%, put after washing
Enter in baking oven, 8h is dried at 100 DEG C, obtain silica gel compound；Finally count by weight, 60 parts of selection is standby respectively is modified
Magnesite stone powder, 30 parts of silica gel compounds, 5 parts of flyash, 0.3 part of diethylenetriamine, 0.1 part of zeolite and 3 parts of lignin, stirring
Pavement patching material is obtained after well mixed.
Pavement crack first by required repairing is cleared up, after the disintegrating slag in removal crack, road prepared by the present invention
Face patching material is cast in the pavement crack after cleaning, through compacting, is struck off, and after it is flushed with road surface, nature is carried out to it
Maintenance 6h.After testing, the crack compression strength after repairing reaches 56MPa, and rupture strength reaches 12.4MPa, after repairing
Crack is not easy to crack.
Example 3
500g magnesites are weighed, broken, 50 mesh sieves excessively in disintegrating machine are added to, magnesite particle is obtained, magnesite particle is added
To in Muffle furnace, and with 0.5m3/ min intake hydrogen, is passed through and is warming up to 800 DEG C with 20 DEG C/min simultaneously, and stopping is passed through hydrogen
Gas, after insulation calcining 30min, is warming up to 1000 DEG C after calcining, heat up and be passed through oxygen simultaneously, and intake is 0.5m3/ min, insulation
Calcining 70min stops being passed through oxygen, and room temperature is cooled to after calcining, obtains calcined material, adds in ball mill, is milled to the ratio of calcined material
Surface area is 700m2/ kg, obtains modified magnesite stone powder, standby；90g silica gel, in mass ratio 1 are weighed again:10 are added to silica gel
In the hydrochloric acid of mass fraction 3%, after immersion 7min, filter residue is filtered to obtain, by filter residue in mass ratio 1:2 are added to chloropropyl trichloro-silane
In, stirring reaction 11h filters to obtain filter residue after reaction, after filter residue 3 times is washed with deionized, be put into baking oven, is done at 95 DEG C
Dry 3h, obtains dried object；Then 220g bisphenol A epoxide resins E-51 is weighed to be added in 170g toluene, after stirring mixing 25min,
The above-mentioned dried objects of 65g and 2g NaOH are added, 70 DEG C are warming up to, stirring reaction 5h, reaction is filtered after terminating, and obtains filter cake, according to
It is secondary to wash filter cake 4 times with the sulfuric acid solution of mass fraction 50%, deionized water and the sodium hydroxide solution of mass fraction 25%, put after washing
Enter in baking oven, 9h is dried at 102 DEG C, obtain silica gel compound；Finally count by weight, 65 parts of selection is standby respectively is modified
Magnesite stone powder, 35 parts of silica gel compounds, 7 parts of flyash, 0.4 part of diethylenetriamine, 0.2 part of zeolite and 4 parts of lignin, stirring
Pavement patching material is obtained after well mixed.
Pavement crack first by required repairing is cleared up, after the disintegrating slag in removal crack, road prepared by the present invention
Face patching material is cast in the pavement crack after cleaning, through compacting, is struck off, and after it is flushed with road surface, nature is carried out to it
Maintenance 7h.After testing, the crack compression strength after repairing reaches 56MPa, and rupture strength reaches 10.7MPa, after repairing
Crack is not easy to crack.
Claims (1)
1. a kind of method of cracking resistance quick-drying pavement patching material, it is characterised in that specific preparation process is：
（1）400~500g magnesites are weighed, broken, 40~50 mesh sieves excessively in disintegrating machine are added to, magnesite particle is obtained, by water chestnut
Magnesite particle is added in Muffle furnace, and with 0.3~0.5m3/ min intake hydrogen, is passed through simultaneously with 15~20 DEG C/min liters
To 600~800 DEG C, stopping is passed through hydrogen to temperature, after 20~30min of insulation calcining, 850~1000 DEG C is warming up to after calcining, heats up
Oxygen is passed through simultaneously, and intake is 0.3~0.5m3/ min, 50~70min of insulation calcining stops being passed through oxygen, is cooled down after calcining
To room temperature, calcined material is obtained, added in ball mill, the specific surface area for being milled to calcined material is 500~700m2/ kg, obtains modified magnesite
Stone powder, it is standby；
（2）Weigh 80~100g silica gel, in mass ratio 1:10 are added in the hydrochloric acid of mass fraction 3% silica gel, soak 5~10min
Afterwards, filter residue is filtered to obtain, by filter residue in mass ratio 1:2 are added in chloropropyl trichloro-silane, 10~12h of stirring reaction, after reaction
Filter residue is filtered to obtain, after filter residue 2~4 times is washed with deionized, is put into baking oven, 2~4h is dried at 90~100 DEG C, obtain dry
Dry thing；
（3）Weigh 200~250g bisphenol A epoxide resins E-51 to be added in 150~180g toluene, 20~30min of stirring mixing
Afterwards, the above-mentioned dried objects of 60~70g and 1~3g NaOH are added, 60~80 DEG C are warming up to, 4~6h of stirring reaction, reaction terminates
After filter, obtain filter cake, washed with the sulfuric acid solution of mass fraction 50%, deionized water and the sodium hydroxide solution of mass fraction 25% successively
Filter cake 3~5 times, is put into baking oven after washing, and 8~10h is dried at 100~105 DEG C, obtains silica gel compound；
（4）Count by weight, 60~70 parts of steps are chosen respectively（1）Standby modified magnesite stone powder, 30~40 parts of silica gel
Compound, 5~10 parts of flyash, 0.3~0.5 part of diethylenetriamine, 0.1~0.3 part of zeolite and 3~5 parts of lignin, stirring are mixed
Pavement patching material is obtained after closing uniformly.
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Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105541232A (en) * | 2015-12-31 | 2016-05-04 | 北京纽维逊建筑工程技术有限公司 | Waterborne epoxy emulsion repairing mortar and preparation method thereof |
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2016
- 2016-12-25 CN CN201611211676.0A patent/CN106747210A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105541232A (en) * | 2015-12-31 | 2016-05-04 | 北京纽维逊建筑工程技术有限公司 | Waterborne epoxy emulsion repairing mortar and preparation method thereof |
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