CN106118084A - A kind of preparation method of microorganism modified road crack repairing agent - Google Patents
A kind of preparation method of microorganism modified road crack repairing agent Download PDFInfo
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- CN106118084A CN106118084A CN201610468610.3A CN201610468610A CN106118084A CN 106118084 A CN106118084 A CN 106118084A CN 201610468610 A CN201610468610 A CN 201610468610A CN 106118084 A CN106118084 A CN 106118084A
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- Prior art keywords
- modified
- asphalt
- crack
- microorganism
- pitch
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L95/00—Compositions of bituminous materials, e.g. asphalt, tar, pitch
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
Abstract
The present invention relates to the preparation method of a kind of microorganism modified road crack repairing agent, belong to pavement crack repair agent technical field.The present invention is using natural lake asphalt as matrix pitch, the most modified through surfactant, more composite modified through '-diphenylmethane diisocyanate and microorganism, prepares pavement crack repair agent after emulsifying mixing.The present invention is composite modified by the '-diphenylmethane diisocyanate of isocyanato group containing and the microorganism with Colophonium degradability, can be with the principle of hydrogeneous functional group reactions generation interfacial bond by isocyanate group, increase the adhesion property of crack repairing agent and road surface, modified through emulsifying again, improve workability and the mobility of healant, can the most directly use, both solved tradition vulcanize Colophonium need heating, consume the energy, the problem that cost is high, compensate for again room temperature repairing Colophonium low temperature flexibility poor, low with the adhesion strength of sides of fracture, easily occur that patching material is excessive, the defect of crack infiltration, have broad application prospects.
Description
Technical field
The present invention relates to the preparation method of a kind of microorganism modified road crack repairing agent, belong to pavement crack repair agent system
Standby technical field.
Background technology
Transportation is the lifeblood of national economy, and highway transportation is one of major way of transportation, and various countries are paying attention to
While the growth of highway quantity at different levels, also attach great importance to the maintenance in face, the origin road networking.Road maintaining engineering of building the road is saved
The energy, economize on resources, protect environment, reduce pollute cry more and more higher.Under these circumstances, how at asphaltic concrete road
Surface construction and maintenance are saved the energy and resource, has caused and built the road and the attention of maintenance department.
Crack is one of main early disease of bituminous paving, not only breaks up road structure integrity, also can reduce driving
Comfortableness and safety.Due to the impact of the factor such as ambient temperature, traffic loading, crack will gradually extend, in the effect of rainwater
Under, road pavement structure causes harm further, makes road structure gradually lose bearing capacity, and therefore crack is repaired in time to road
Normal use is significant.Currently mainly use crack patching material to carry out pavement crack process, but commonly vulcanize material and be suitable for
Concentrate in location, pavement maintenance that quantities is bigger, use limited for location dispersion, crack that quantities is little；And it is the most normal
Temperature construction patching material low temperature flexibility is poor, low with the adhesion strength of sides of fracture, easily occurs that patching material is excessive, seep water in crack
Etc. situation, accelerate fracture propagation.Traditional repairing method, expends too much man power and material, and is difficult to ensure that repair efficiency.
Development can accomplish Rapid-Repair and cheap pavement crack repair agent, and maintenance and maintenance for road have very
Positive value and significance.
Summary of the invention
The technical problem to be solved: be applicable to location concentration, engineering for commonly vulcanizing asphalt material at present
Measure bigger pavement maintenance, use limited for location dispersion, the little crack of quantities, and Colophonium material is repaired in common room temperature construction
Material low temperature flexibility is poor, low with the adhesion strength of sides of fracture, the situations such as excessive, the crack infiltration of patching material easily occurs, accelerates
The drawback of fracture propagation, it is provided that a kind of using natural lake asphalt as matrix pitch, the most modified through surfactant, then through two
Phenylmethane diisocyanate and microorganism are composite modified, the method preparing pavement crack repair agent after emulsifying mixing.The present invention is led to
The '-diphenylmethane diisocyanate crossing isocyanato group containing and the microorganism with Colophonium degradability are composite modified, pass through isocyanate group
The adhesion property of crack repairing agent and road surface, then warp can be increased with the principle of hydrogeneous functional group reactions generation interfacial bond
Emulsifying is modified, improves workability and the mobility of healant, can the most directly use, both solve tradition and vulcanized Colophonium
Need heating, consume the energy, the problem of increase cost, compensate for again room temperature repairing Colophonium low temperature flexibility poor, with gluing of sides of fracture
Knotting strength is low, easily occurs that patching material is excessive, the defect of crack infiltration, has broad application prospects.
For solving above-mentioned technical problem, the present invention uses the technical scheme as described below to be:
(1) weigh 2～3kg natural lake asphalt and put in reactor as matrix pitch, be simultaneously introduced matrix pitch gross mass 5～
The dodecylbenzene sodium sulfonate of 7%, is heated to 170～180 DEG C and is incubated swelling 20～40min, adds after it melts
20～30g butyl rubbers, are cooled to 150～160 DEG C, with high speed asphalt shearing machine with 1000～1500r/min rotating speed cutting 40
～50min, obtain mixture；
(2) after shearing completes, gained mixture is moved into immediately in pottery fermentation tank, add mixture gross mass 40～50%
'-diphenylmethane diisocyanate, is uniformly mixed rapidly, and makes it naturally cool to room temperature, then takes 1～2kg garment or robe made of feathers grass, plucks
Disleaf sheet, puts in juice extractor after being cleaned by rhizome and squeezes the juice, filter isolated filtrate；
(3) it is 1:5 by volume, the filtrate of isolated is poured in the fermentation tank after above-mentioned cooling, be 0.1mol/ by concentration
L sodium hydroxide solution regulation pH to 7.0～7.5, accesses micrococcus luteus in fermentation tank by inoculum concentration 12～15%, then will send out
Ferment tank moves in calorstat, and at 24～26 DEG C, modified 2～3 weeks of heat-preservation fermentation, obtain modified pitch, standby；
(4) measure 3～4L deionized waters and load in beaker, in beaker, add 20～30g asphalt emulsifiers and 40 the most respectively
～60g rosin glyceride, subsequently beaker is moved in the water-bath of 60～70 DEG C, with homogenizer with 400～500r/min
Rotating speed stirring 5～10min, stands after 30～40min to obtain colas, described asphalt emulsifier be split slowly fast solidifying type sun from
Sub-asphalt emulsifier BH-MK, code name is 801U；
(5) above-mentioned standby modified pitch is heated to 160～170 DEG C, above-mentioned gained colas is proceeded in reactor,
Starting agitator, instill in colas by modified pitch while stirring, controlling time for adding is 10～15min, waits to drip
Complete, then with high-shearing dispersion emulsifying machine with discharging after 8000～9000r/min rotating speed cutting 15～20min, tinning i.e. obtains micro-
Bio-modification pavement crack repair agent.
The application process of the present invention: measure scope and the degree of depth of pavement crack part, mark substantially parallel with Lu Zhizheng line
Or vertical grooving repairs contour line, digging groove hole, remove clean by bottom land, cell wall, at clean bottom land, cell wall is thin rinses one layer
1～2mm pitch binder applied, the microorganism modified road crack repairing agent present invention prepared subsequently is filled out and is spread to groove hole, after compacting
Equal with road surface around, groove hole.This healant pliability at-15～-10 DEG C is good, high with the adhesion strength of sides of fracture, makes
With rear, patching material is difficult to excessive, and crack occurs without infiltration, fracture propagation phenomenon, is worthy to be popularized and uses.
The present invention is compared with additive method, and Advantageous Effects is:
(1) preparation process of the present invention is simple, and low temperature flexibility is good, high with the adhesion strength of sides of fracture；
(2) after using, patching material is difficult to excessive, and crack occurs without infiltration, fracture propagation phenomenon.
Detailed description of the invention
First weigh 2～3kg natural lake asphalt and put in reactor as matrix pitch, be simultaneously introduced the total matter of matrix pitch
Amount 5～the dodecylbenzene sodium sulfonate of 7%, be heated to 170～180 DEG C and be incubated swelling 20～40min, after it melts
Add 20～30g butyl rubbers, be cooled to 150～160 DEG C, with high speed asphalt shearing machine with 1000～1500r/min rotating speeds
Shear 40～50min, obtain mixture；Then after shearing completes, gained mixture is moved into immediately in pottery fermentation tank, add
Mixture gross mass 40～the '-diphenylmethane diisocyanate of 50%, be uniformly mixed rapidly, and makes it naturally cool to room
Temperature, then take 1～2kg garment or robe made of feathers grass, tripping, put in juice extractor after rhizome is cleaned and squeeze the juice, filter isolated filtrate；Again
It is 1:5 by volume, the filtrate of isolated is poured in the fermentation tank after above-mentioned cooling, be 0.1mol/L hydroxide by concentration
Sodium solution regulation pH to 7.0～7.5, accesses micrococcus luteus in fermentation tank by inoculum concentration 12～15%, then is moved into by fermentation tank
In calorstat, at 24～26 DEG C, modified 2～3 weeks of heat-preservation fermentation, obtain modified pitch, standby；Measure 3～4L deionized water dresses
Enter in beaker, in beaker, add 20～30g asphalt emulsifiers and 40～60g rosin glyceride the most respectively, subsequently by beaker
Move in the water-bath of 60～70 DEG C, with homogenizer with 400～500r/min rotating speeds stirring 5～10min, stand 30～
Obtaining colas after 40min, described asphalt emulsifier is to split fast solidifying type cation asphalt emulgent BH-MK slowly, and code name is
801U；Finally above-mentioned standby modified pitch is heated to 160～170 DEG C, above-mentioned gained colas is proceeded to reactor
In, start agitator, while stirring modified pitch is instilled in colas, controlling time for adding is 10～15min, waits to drip
Add complete, then with high-shearing dispersion emulsifying machine with discharging after 8000～9000r/min rotating speed cutting 15～20min, tinning and get final product
Microorganism modified road crack repairing agent.
Example 1
First weigh the natural lake asphalt of 2kg and put in reactor as matrix pitch, be simultaneously introduced matrix pitch gross mass 5%
Dodecylbenzene sodium sulfonate, is heated to 170 DEG C and is incubated swelling 20min, adds 20g butyl rubber after it melts,
It is cooled to 150 DEG C, with high speed asphalt shearing machine with 1000r/min rotating speed cutting 40min, obtains mixture；Then treat that shearing completes
After gained mixture moved into immediately in pottery fermentation tank, add the '-diphenylmethane diisocyanate of mixture gross mass 40%, fast
Speed is uniformly mixed, and makes it naturally cool to room temperature, then takes 1kg garment or robe made of feathers grass, tripping, puts into squeezing after being cleaned by rhizome
Juice machine is squeezed the juice, filters isolated filtrate；It is 1:5 the most by volume, after pouring the filtrate of isolated into above-mentioned cooling
In fermentation tank, it is that 0.1mol/L sodium hydroxide solution regulates pH to 7.0 by concentration, in fermentation tank, accesses rattan by inoculum concentration 12%
Yellow micrococcus luteus, then fermentation tank is moved in calorstat, at 24 DEG C, modified 2 weeks of heat-preservation fermentation, obtain modified pitch, standby；Amount
Take 3L deionized water and load in beaker, in beaker, add 20g asphalt emulsifier and 40g rosin glyceride the most respectively, subsequently
Beaker is moved in the water-bath of 60 DEG C, stir 5min with homogenizer with 400r/min rotating speed, after standing 30min, obtain Colophonium
Emulsion, described asphalt emulsifier is to split fast solidifying type cation asphalt emulgent BH-MK slowly, and code name is 801U；Finally by upper
State standby modified pitch and be heated to 160 DEG C, above-mentioned gained colas is proceeded in reactor, start agitator, while stir
Mixing limit and instill in colas by modified pitch, control time for adding is 10min, waits to drip complete, then uses high shear dispersion
Mulser is with discharging after 8000r/min rotating speed cutting 15min, and tinning i.e. obtains microorganism modified road crack repairing agent.
Measure scope and the degree of depth of pavement crack part, mark substantially parallel or vertical with Lu Zhizheng line grooving and repair wheel
Profile, digs groove hole, removes clean by bottom land, cell wall, and at clean bottom land, cell wall is thin rinses one layer of 1mm pitch binder applied, subsequently will
The microorganism modified road crack repairing agent that the present invention prepares is filled out and is spread to groove hole, equal i.e. with road surface around, groove hole after compacting
Can.This healant pliability at-15 DEG C is good, and high with the adhesion strength of sides of fracture, after using, patching material is difficult to excessive, splits
Seam occurs without infiltration, fracture propagation phenomenon, is worthy to be popularized and uses.
Example 2
First weigh the natural lake asphalt of 3kg and put in reactor as matrix pitch, be simultaneously introduced matrix pitch gross mass 6%
Dodecylbenzene sodium sulfonate, is heated to 175 DEG C and is incubated swelling 30min, adds 25g butyl rubber after it melts,
It is cooled to 155 DEG C, with high speed asphalt shearing machine with 1250r/min rotating speed cutting 45min, obtains mixture；Then treat that shearing completes
After gained mixture moved into immediately in pottery fermentation tank, add the '-diphenylmethane diisocyanate of mixture gross mass 45%, fast
Speed is uniformly mixed, and makes it naturally cool to room temperature, then takes 2kg garment or robe made of feathers grass, tripping, puts into squeezing after being cleaned by rhizome
Juice machine is squeezed the juice, filters isolated filtrate；It is 1:5 the most by volume, after pouring the filtrate of isolated into above-mentioned cooling
In fermentation tank, it is that 0.1mol/L sodium hydroxide solution regulates pH to 7.3 by concentration, in fermentation tank, accesses rattan by inoculum concentration 14%
Yellow micrococcus luteus, then fermentation tank is moved in calorstat, at 25 DEG C, modified 3 weeks of heat-preservation fermentation, obtain modified pitch, standby；Amount
Take 3L deionized water and load in beaker, in beaker, add 25g asphalt emulsifier and 50g rosin glyceride the most respectively, subsequently
Beaker is moved in the water-bath of 65 DEG C, stir 8min with homogenizer with 450r/min rotating speed, after standing 35min, obtain Colophonium
Emulsion, described asphalt emulsifier is to split fast solidifying type cation asphalt emulgent BH-MK slowly, and code name is 801U；Finally by upper
State standby modified pitch and be heated to 165 DEG C, above-mentioned gained colas is proceeded in reactor, start agitator, while stir
Mixing limit and instill in colas by modified pitch, control time for adding is 13min, waits to drip complete, then uses high shear dispersion
Mulser is with discharging after 8500r/min rotating speed cutting 18min, and tinning i.e. obtains microorganism modified road crack repairing agent.
Measure scope and the degree of depth of pavement crack part, mark substantially parallel or vertical with Lu Zhizheng line grooving and repair wheel
Profile, digs groove hole, removes clean by bottom land, cell wall, and at clean bottom land, cell wall is thin rinses one layer of 1mm pitch binder applied, subsequently will
The microorganism modified road crack repairing agent that the present invention prepares is filled out and is spread to groove hole, equal i.e. with road surface around, groove hole after compacting
Can.This healant pliability at-12 DEG C is good, and high with the adhesion strength of sides of fracture, after using, patching material is difficult to excessive, splits
Seam occurs without infiltration, fracture propagation phenomenon, is worthy to be popularized and uses.
Example 3
First weigh the natural lake asphalt of 3kg and put in reactor as matrix pitch, be simultaneously introduced matrix pitch gross mass 7%
Dodecylbenzene sodium sulfonate, is heated to 180 DEG C and is incubated swelling 40min, adds 30g butyl rubber after it melts,
It is cooled to 160 DEG C, with high speed asphalt shearing machine with 1500r/min rotating speed cutting 50min, obtains mixture；Then treat that shearing completes
After gained mixture moved into immediately in pottery fermentation tank, add the '-diphenylmethane diisocyanate of mixture gross mass 50%, fast
Speed is uniformly mixed, and makes it naturally cool to room temperature, then takes 2kg garment or robe made of feathers grass, tripping, puts into squeezing after being cleaned by rhizome
Juice machine is squeezed the juice, filters isolated filtrate；It is 1:5 the most by volume, after pouring the filtrate of isolated into above-mentioned cooling
In fermentation tank, it is that 0.1mol/L sodium hydroxide solution regulates pH to 7.5 by concentration, in fermentation tank, accesses rattan by inoculum concentration 15%
Yellow micrococcus luteus, then fermentation tank is moved in calorstat, at 26 DEG C, modified 3 weeks of heat-preservation fermentation, obtain modified pitch, standby；Amount
Take 4L deionized water and load in beaker, in beaker, add 30g asphalt emulsifier and 60g rosin glyceride the most respectively, subsequently
Beaker is moved in the water-bath of 70 DEG C, stir 10min with homogenizer with 500r/min rotating speed, must drip after standing 40min
Blue or green emulsion, described asphalt emulsifier is to split fast solidifying type cation asphalt emulgent BH-MK slowly, and code name is 801U；Finally will
Above-mentioned standby modified pitch is heated to 170 DEG C, proceeds in reactor by above-mentioned gained colas, starts agitator, limit
Modified pitch is instilled in colas by stirring limit, and control time for adding is 15min, waits to drip complete, then divides with high shear
Scattered mulser is with discharging after 9000r/min rotating speed cutting 20min, and tinning i.e. obtains microorganism modified road crack repairing agent.
Measure scope and the degree of depth of pavement crack part, mark substantially parallel or vertical with Lu Zhizheng line grooving and repair wheel
Profile, digs groove hole, removes clean by bottom land, cell wall, and at clean bottom land, cell wall is thin rinses one layer of 2mm pitch binder applied, subsequently will
The microorganism modified road crack repairing agent that the present invention prepares is filled out and is spread to groove hole, equal i.e. with road surface around, groove hole after compacting
Can.This healant pliability at-10 DEG C is good, and high with the adhesion strength of sides of fracture, after using, patching material is difficult to excessive, splits
Seam occurs without infiltration, fracture propagation phenomenon, is worthy to be popularized and uses.
Claims (1)
1. the preparation method of a microorganism modified road crack repairing agent, it is characterised in that concrete preparation process is:
(1) weigh 2～3kg natural lake asphalt and put in reactor as matrix pitch, be simultaneously introduced matrix pitch gross mass 5～
The dodecylbenzene sodium sulfonate of 7%, is heated to 170～180 DEG C and is incubated swelling 20～40min, adds after it melts
20～30g butyl rubbers, are cooled to 150～160 DEG C, with high speed asphalt shearing machine with 1000～1500r/min rotating speed cutting 40
～50min, obtain mixture；
(2) after shearing completes, gained mixture is moved into immediately in pottery fermentation tank, add mixture gross mass 40～50%
'-diphenylmethane diisocyanate, is uniformly mixed rapidly, and makes it naturally cool to room temperature, then takes 1～2kg garment or robe made of feathers grass, plucks
Disleaf sheet, puts in juice extractor after being cleaned by rhizome and squeezes the juice, filter isolated filtrate；
(3) it is 1:5 by volume, the filtrate of isolated is poured in the fermentation tank after above-mentioned cooling, be 0.1mol/ by concentration
L sodium hydroxide solution regulation pH to 7.0～7.5, accesses micrococcus luteus in fermentation tank by inoculum concentration 12～15%, then will send out
Ferment tank moves in calorstat, and at 24～26 DEG C, modified 2～3 weeks of heat-preservation fermentation, obtain modified pitch, standby；
(4) measure 3～4L deionized waters and load in beaker, in beaker, add 20～30g asphalt emulsifiers and 40 the most respectively
～60g rosin glyceride, subsequently beaker is moved in the water-bath of 60～70 DEG C, with homogenizer with 400～500r/min
Rotating speed stirring 5～10min, stands after 30～40min to obtain colas, described asphalt emulsifier be split slowly fast solidifying type sun from
Sub-asphalt emulsifier BH-MK, code name is 801U；
(5) above-mentioned standby modified pitch is heated to 160～170 DEG C, above-mentioned gained colas is proceeded in reactor,
Starting agitator, instill in colas by modified pitch while stirring, controlling time for adding is 10～15min, waits to drip
Complete, then with high-shearing dispersion emulsifying machine with discharging after 8000～9000r/min rotating speed cutting 15～20min, tinning i.e. obtains micro-
Bio-modification pavement crack repair agent.
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| CN201610468610.3A CN106118084A (en) | 2016-06-25 | 2016-06-25 | A kind of preparation method of microorganism modified road crack repairing agent |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112210223A (en) * | 2020-10-19 | 2021-01-12 | 史国民 | Biological modified asphalt and preparation method thereof |
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| CN103361026A (en) * | 2013-08-13 | 2013-10-23 | 山东泽瑞新材料科技有限公司 | Preparation method of high-molecular polymer crack filler for pavements |
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2016
- 2016-06-25 CN CN201610468610.3A patent/CN106118084A/en active Pending
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| CN101475748A (en) * | 2009-01-20 | 2009-07-08 | 钦兰成 | High strength cold state asphalt fissure cementation water-proof glue and preparation thereof |
| CN102850809A (en) * | 2012-08-27 | 2013-01-02 | 句容宁武科技开发有限公司 | Preparation method of interpenetrating network modified asphalt |
| CN103361026A (en) * | 2013-08-13 | 2013-10-23 | 山东泽瑞新材料科技有限公司 | Preparation method of high-molecular polymer crack filler for pavements |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112210223A (en) * | 2020-10-19 | 2021-01-12 | 史国民 | Biological modified asphalt and preparation method thereof |
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