CN110436825A - A kind of pitch cold-repairing material antistripping agent and preparation method thereof - Google Patents
A kind of pitch cold-repairing material antistripping agent and preparation method thereof Download PDFInfo
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- CN110436825A CN110436825A CN201910671488.3A CN201910671488A CN110436825A CN 110436825 A CN110436825 A CN 110436825A CN 201910671488 A CN201910671488 A CN 201910671488A CN 110436825 A CN110436825 A CN 110436825A
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- cold
- pitch
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- repairing material
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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
- C04B26/00—Compositions of mortars, concrete or artificial stone, containing only organic binders, e.g. polymer or resin concrete
- C04B26/02—Macromolecular compounds
- C04B26/26—Bituminous materials, e.g. tar, pitch
-
- 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
- C04B40/00—Processes, in general, for influencing or modifying the properties of mortars, concrete or artificial stone compositions, e.g. their setting or hardening ability
- C04B40/0028—Aspects relating to the mixing step of the mortar preparation
- C04B40/0039—Premixtures of ingredients
- C04B40/0046—Premixtures of ingredients characterised by their processing, e.g. sequence of mixing the ingredients when preparing the premixtures
-
- 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
- C04B2103/00—Function or property of ingredients for mortars, concrete or artificial stone
- C04B2103/60—Agents for protection against chemical, physical or biological attack
-
- 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
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention discloses a kind of anti-strip type pitch cold-repairing material and preparation method thereof, it by it by gathering materials, filler, diesel oil, pitch, cold-patch agent, be made after the mixing of dedicated antistripping agent.Wherein dedicated antistripping agent is mixed to prepare after N'- bis- (2- naphthalene) p-phenylenediamine is reacted with lime by trichlorosilane, allyl methacrylate, N.The present invention stablizes poor for current cold repairing asphalt mixture water, intensity forms slow problem, develops a kind of modifying agent that can enhance pitch cold-repairing material mineral aggregate Yu pitch adhesive property, prevents under water function, pitch and mineral aggregate are removed in cold-repairing material, improve the water resistant stability of pitch cold-repairing material.
Description
Technical field
The invention belongs to technical field of road engineering materials, relate particularly to a kind of anti-strip type pitch cold-repairing material and its
Preparation method.
Background technique
Road often will appear the diseases such as pit slot, breakage before reaching Years Of Service, in order to make road keep due
Road ability needs to repair these positions.Since road is the features such as that there are areas at repairing position is small, position dispersion, adopt
It is repaired in work progress with hot-mix asphalt mixture, mixture heat loss is rapid, and temperature reduces seriously, is not easy road surface
Compacting；And mixture dosage is few in maintenance process, hot-mix asphalt mixture is generally mixed and stirred using mechanization, and the amount of mixing and stirring is big, Yi Zao
At waste.Therefore, during pavement patching, pitch cold-repairing material is generally used, there is easily compacting, it is used as needed, facilitate storage, grasps
Make simple feature.
Pitch cold-repairing material is usually the product for being added in common hot-mix asphalt mixture and obtaining after diesel fuel dilution, in diesel oil
Diluting effect under, the decking and rolling operation of room temperature may be implemented, with the volatilization of diesel oil after the completion of construction, pitch cold-repairing material by
Intensity is gradually formed, and by after the sealing of pitch cold-repairing material, can be saved for a long time, it is used as needed, it is easy to use.
Pitch cold-repairing material be as the volatilization of diesel oil gradually forms intensity, in this process, if encountering rainwater, due to
Intensity is not fully developed, and moisture easily penetrates into inside pitch cold-repairing material, is caused pitch and mineral aggregate to remove, is generated Water Damage；In addition,
Since diesel oil is added, the adhesion property of pitch and building stones is also reduced, further reduced the water stabilizing of pitch cold-repairing material.
Therefore, it is necessary to develop a kind of pitch cold-repairing material with anti-strip characteristic, to improve the viscous of pitch and mineral aggregate in pitch cold-repairing material
Attached property promotes the water resistant damage performance of cold-repairing material, prolongs its service life.
Summary of the invention
The present invention is intended to provide a kind of anti-strip type pitch cold-repairing material and preparation method thereof, can be obviously improved pitch
The water stabilizing of cold-repairing material, to achieve the goals above, it is characterised in that the following steps are included:
1, a kind of anti-strip type pitch cold-repairing material and preparation method thereof, it by gathering materials, filler, pitch, diesel oil, cold-patch agent,
It is made after dedicated antistripping agent mixing.Its material proportion and preparation step are as follows:
(1) by pitch, diesel oil, cold-patch agent, dedicated antistripping agent 73- in mass ratio after pitch is heated to 100-140 DEG C
80:18-24:2-3:0.2-0.5 being stirred in agitating device and being mixed to prepare asphalt cold repairing.
(2) it will gather materials and be heated to 70-80 DEG C, asphalt cold repairing is heated to 80-100 DEG C, then will gather materials, the drip of filler, cold-patch
Blueness 90-95:2-5:4-6 in mass ratio is mixed in asphalt mixing building.Mixture mixing time >=25 second, drop temperature is not
More than 80 DEG C.
The pitch is No. 70 road asphalts of A grade.
It is described to gather materials for limestone, basalt or diabase gravel.
The filler is limestone dust.
The diesel oil is No. 0 diesel oil.
The cold-patch agent fatty acid ammonium class cold-patch agent.
2, the dedicated antistripping agent of pitch cold-repairing material, it is by trichlorosilane, allyl methacrylate, N, bis- (2- of N'-
Naphthalene) product and lime of p-phenylenediamine, methanol after centainly chemically reacting mix.Trichlorosilane, methacrylic acid alkene
Propyl ester, N, N'- bis- (2- naphthalene) p-phenylenediamine is 1:(1.01-1.02 in molar ratio): (0.4-0.8).
Reaction step are as follows:
(1) trichlorosilane, allyl methacrylate, N, N'- bis- (2- naphthalene) p-phenylenediamine 1:1.01- in molar ratio
1.02:0.4-0.8, which chooses, to be weighed, and by trichlorosilane and N, N'- bis- (2- naphthalene) p-phenylenediamine is fitted into reactor stirs in proportion
It mixes uniformly mixed, then titrates allyl methacrylate while stirring, 90-110 DEG C of reaction temperature, titration time 1-1.5h, drop
After the completion of fixed, it is warming up to 115-125 DEG C, insulation reaction 0.5-1h obtains product A.
(2) product A is fitted into reactor, becomes and stirs side dropwise addition methanol, the mass ratio of methanol and reactant A is 1:1.1-
1.4, titration time 0.5-1h, keep the temperature 1h after the completion of titration, obtain product B by 55-64 DEG C of titration temperature.
It (3) is 2-2.2kPa in vacuum degree by product B, under the conditions of 125-135 DEG C of temperature, vacuum distillation obtains product C.
(4) it is uniformly mixed product C and lime to obtain product antistripping agent according to mass ratio 1:0.1-0.2.
Purity of trichlorosilane described in step (1) is greater than 99%, and allyl methacrylate purity is greater than 98%, N, N'-
Two (2- naphthalene) p-phenylenediamine purity are greater than 98%.
Methanol purity described in step (2) is greater than 99%.
Lime described in step (4) is the mixture of calcium oxide and magnesia, and wherein the mass content of calcium oxide is greater than
60%.
Benefit of the invention is: a kind of pitch cold-repairing material antistripping agent of the invention is by product C and a small amount of lime group
At.Wherein product C is obtained by trichlorosilane, allyl methacrylate and methanol by polymerization and hydrolysis, contains metering system
Acyloxy and silanol, the two are connected (such as formula 1) by aliphatic chain；Lime is adsorbed in product C in the silanol groups of part.It produces
Methacryloxy in object C can be good at absorption with the pitch in pitch cold-repairing material and be combined, and silanol is easy cold with pitch
Inorganic mineral aggregate in feed supplement combines, therefore enhances the caking property of pitch and mineral aggregate to a certain extent by the effect of product C
Energy；The lime being adsorbed on product C can form alkaline activated centre in surface of aggregate, react with the acid ingredient in pitch,
The salt with surfactant component is generated, the adhesive property of pitch and mineral aggregate is further enhanced.Under the two effect, it is obviously improved
The adhesive property of pitch and mineral aggregate prevents under water function, and pitch and mineral aggregate are removed in cold-repairing material, improves pitch cold-repairing material
Water resistant stability.
Specific embodiment
In order to better understand the present invention, the content that the present invention is furture elucidated combined with specific embodiments below, but this hair
Bright content is not limited solely to the following examples.
Embodiment 1:
Pitch used is No. 70 A grades of bi tumenf orr oads, is gathered materials for limestone gravel, filler is limestone powder, diesel oil
For commercially available No. 0 diesel oil, the fatty acid ammonium class cold-patch agent of cold-patch agent Xi'an Bo Wang new material Co., Ltd production, other chemical reagent
It is all made of commercially available chemical reagent.
1, dedicated cold-patch agent is synthesized first
(1) trichlorosilane, allyl methacrylate, N, N'- bis- (2- naphthalene) p-phenylenediamine 1:1.01 in molar ratio:
0.4 chooses weighing, and by trichlorosilane and N, N'- bis- (2- naphthalene) p-phenylenediamine, which is fitted into proportion in reactor, to be stirred
It is even, then allyl methacrylate is titrated while stirring, 90 DEG C of reaction temperature, titration time 1h after the completion of titration, is warming up to
115 DEG C, insulation reaction 0.5h obtains product A.
(2) product A being fitted into reactor, becomes and stirs side dropwise addition methanol, the mass ratio of methanol and reactant A is 1:1.1,
Titration time 0.5h, keeps the temperature 1h after the completion of titration, obtains product B by 55 DEG C of titration temperature.
It (3) is 2kPa in vacuum degree by product B, under the conditions of 125 DEG C of temperature, vacuum distillation obtains product C.
(4) it is uniformly mixed product C and lime to obtain product antistripping agent according to mass ratio 1:0.1.
Purity of trichlorosilane described in step (1) is 99.2%, and allyl methacrylate purity is 98.2%, N, N'-
Two (2- naphthalene) p-phenylenediamine purity are 98.2%.
Methanol purity described in step (2) is 99.2%.
Lime described in step (4) is the mixture of calcium oxide and magnesia, and wherein the mass content of calcium oxide is 62%.
2, asphalt cold repairing is prepared
Pitch is heated to 110 DEG C, by pitch, diesel oil, cold-patch agent, dedicated antistripping agent 78:20:2:0.3 in mass ratio
It is stirred 6min in agitating device, is mixed to prepare asphalt cold repairing.
3, cold repairing asphalt mixture is prepared
To gather materials and be heated to 75 DEG C, asphalt cold repairing is heated to 90 DEG C, then will gather materials, filler, asphalt cold repairing in mass ratio
92:3:5 is mixed in asphalt mixing building.Mixture mixing time 30 seconds, 77 DEG C of drop temperature.
The present invention and the water stability performance indicator of common commercially available pitch cold-repairing material are shown in Table 1.Immersion of the invention, which remains, stablizes
Degree and freeze-thaw split intensity are obviously improved than, improve the water stabilizing of pitch cold-repairing material.
The water stabilizing of 1 pitch cold-repairing material of table compares
| Project | Soak residual stability | Freeze-thaw split intensity ratio |
| Pitch cold-repairing material | 82% | 79% |
| The embodiment of the present invention 1 | 92% | 90% |
Embodiment 2
Pitch used is No. 70 A grades of bi tumenf orr oads, is gathered materials for limestone gravel, filler is limestone powder, diesel oil
For commercially available No. 0 diesel oil, the fatty acid ammonium class cold-patch agent of cold-patch agent Xi'an Bo Wang new material Co., Ltd production, other chemical reagent
It is all made of commercially available chemical reagent.
1, dedicated cold-patch agent is synthesized first
(1) trichlorosilane, allyl methacrylate, N, N'- bis- (2- naphthalene) p-phenylenediamine 1:1.005 in molar ratio:
0.6 chooses weighing, and by trichlorosilane and N, N'- bis- (2- naphthalene) p-phenylenediamine, which is fitted into proportion in reactor, to be stirred
It is even, then allyl methacrylate is titrated while stirring, 100 DEG C of reaction temperature, titration time 1.3h, after the completion of titration, heating
To 120 DEG C, insulation reaction 0.8h obtains product A.
(2) product A being fitted into reactor, becomes and stirs side dropwise addition methanol, the mass ratio of methanol and reactant A is 1:1.3,
Titration time 0.8h, keeps the temperature 1h after the completion of titration, obtains product B by 60 DEG C of titration temperature.
It (3) is 2.1kPa in vacuum degree by product B, under the conditions of 130 DEG C of temperature, vacuum distillation obtains product C.
(4) it is uniformly mixed product C and lime to obtain product antistripping agent according to mass ratio 1:0.15.
Purity of trichlorosilane described in step (1) is 99.5%, and allyl methacrylate purity is 98.5%, N, N'-
Two (2- naphthalene) p-phenylenediamine purity are 98.5%.
Methanol purity described in step (2) is 99.5%.
Lime described in step (4) is the mixture of calcium oxide and magnesia, and wherein the mass content of calcium oxide is 65%.
2, asphalt cold repairing is prepared
Pitch is heated to 110 DEG C, after by pitch, diesel oil, cold-patch agent, dedicated antistripping agent 79:18:3 in mass ratio:
0.4 is stirred 5min in agitating device, is mixed to prepare asphalt cold repairing.
3, cold repairing asphalt mixture is prepared
To gather materials and be heated to 80 DEG C, asphalt cold repairing is heated to 85 DEG C, then will gather materials, filler, asphalt cold repairing in mass ratio
93:2.5:4.5 being mixed in asphalt mixing building.Mixture mixing time 30 seconds, 80 DEG C of drop temperature.
The present invention and the water stability performance indicator of common commercially available pitch cold-repairing material are shown in Table 2.Immersion of the invention, which remains, stablizes
Degree and freeze-thaw split intensity are obviously improved than, improve the water stabilizing of pitch cold-repairing material.
The water stabilizing of 2 pitch cold-repairing material of table compares
| Project | Soak residual stability | Freeze-thaw split intensity ratio |
| Pitch cold-repairing material | 82% | 79% |
| The embodiment of the present invention 2 | 93% | 91% |
Embodiment 3
Pitch used is No. 70 A grades of bi tumenf orr oads, is gathered materials for limestone gravel, filler is limestone powder, diesel oil
For commercially available No. 0 diesel oil, the fatty acid ammonium class cold-patch agent of cold-patch agent Xi'an Bo Wang new material Co., Ltd production, other chemical reagent
It is all made of commercially available chemical reagent.
1, dedicated cold-patch agent is synthesized first
(1) trichlorosilane, allyl methacrylate, N, N'- bis- (2- naphthalene) p-phenylenediamine 1:1.02 in molar ratio:
0.8 chooses weighing, and by trichlorosilane and N, N'- bis- (2- naphthalene) p-phenylenediamine, which is fitted into proportion in reactor, to be stirred
It is even, then allyl methacrylate is titrated while stirring, 110 DEG C of reaction temperature, titration time 1.5h, after the completion of titration, heating
To 125 DEG C, insulation reaction 1h obtains product A.
(2) product A being fitted into reactor, becomes and stirs side dropwise addition methanol, the mass ratio of methanol and reactant A is 1:1.4,
Titration time 1h, keeps the temperature 1h after the completion of titration, obtains product B by 64 DEG C of titration temperature.
It (3) is 2.2kPa in vacuum degree by product B, under the conditions of 135 DEG C of temperature, vacuum distillation obtains product C.
(4) it is uniformly mixed product C and lime to obtain product antistripping agent according to mass ratio 1:0.2.
Purity of trichlorosilane described in step (1) is 99.8%, and allyl methacrylate purity is 98.8%, N, N'-
Two (2- naphthalene) p-phenylenediamine purity are 98.8%.
Methanol purity described in step (2) is 99.8%.
Lime described in step (4) is the mixture of calcium oxide and magnesia, and wherein the mass content of calcium oxide is 70%.
2, asphalt cold repairing is prepared
Pitch is heated to 105 DEG C, after pitch, diesel oil, dedicated cold-patch agent 78:18:2:0.45 in mass ratio are being stirred
It is stirred 5min in device, is mixed to prepare asphalt cold repairing.
3, cold repairing asphalt mixture is prepared
To gather materials and be heated to 80 DEG C, asphalt cold repairing is heated to 85 DEG C, then will gather materials, filler, asphalt cold repairing in mass ratio
92:3.5:4.5 being mixed in asphalt mixing building.Mixture mixing time 30 seconds, 80 DEG C of drop temperature.
After adding antistripping agent of the invention, water stability performance indicator is shown in Table 3.After adding antistripping agent of the invention,
The immersion residual stability and freeze-thaw split intensity of pitch cold-repairing material are obviously improved than, improve the water of pitch cold-repairing material
Stability.
The water stabilizing of 1 pitch cold-repairing material of table compares
| Project | Soak residual stability | Freeze-thaw split intensity ratio |
| Pitch cold-repairing material | 82% | 79% |
| The embodiment of the present invention 3 | 93% | 91% |
Claims (8)
1. a kind of anti-strip type pitch cold-repairing material and preparation method thereof, comprising the following steps: after pitch is heated to 100-140 DEG C
By pitch, diesel oil, cold-patch agent, dedicated antistripping agent 73-80:18-24:2-3:0.2-0.5 in mass ratio in agitating device into
Row is stirred obtained asphalt cold repairing；It will gather materials and be heated to 70-80 DEG C, asphalt cold repairing is heated to 80-100 DEG C, then will gather materials,
Filler, asphalt cold repairing 90-95:2-5:4-6 in mass ratio are mixed in asphalt mixing building.Mixture mixing time >=25
Second, drop temperature is no more than 80 DEG C.
2. pitch described in claim 1 be No. 70 road asphalts of A grade, it is described gather materials for limestone, basalt or diabase it is broken
Stone, the filler are limestone dust, and the diesel oil is No. 0 diesel oil, the cold-patch agent fatty acid ammonium class cold-patch agent.
3. the dedicated antistripping agent of pitch cold-repairing material described in claim 1, it by trichlorosilane, allyl methacrylate, N,
Product and lime of N'- bis- (2- naphthalene) p-phenylenediamine, methanol after centainly chemically reacting mix；Trichlorosilane, methyl
Allyl acrylate, N, N'- bis- (2- naphthalene) p-phenylenediamine is 1:(1.01-1.02 in molar ratio): (0.4-0.8).
4. chemical reaction is the following steps are included: by trichlorosilane and N described in claim 3, N'- bis- (2- naphthalene) p-phenylenediamine
Be fitted into reactor and stir evenly in proportion, after titrate allyl methacrylate while stirring, 90-110 DEG C of reaction temperature, drop
Fix time 1-1.5h, is warming up to 115-125 DEG C after the completion, and insulation reaction 0.5-1h obtains product A；Product A is packed into reactor
In, it is added dropwise methanol while stirring, the mass ratio of methanol and reactant A is 1:1.1-1.4, titration time 0.5-1h, titration temperature
55-64 DEG C, 1h is kept the temperature after the completion of titration, obtains product B；By product B vacuum degree be 2-2.2kPa, 125-135 DEG C of item of temperature
Under part, vacuum distillation obtains product C.
5. described in claim 3 with lime mixed method be by product C and lime according to mass ratio 1:0.1-0.2.
6. purity of trichlorosilane described in step (1) is greater than 99% in claim 4, allyl methacrylate purity is greater than
(2- naphthalene) the p-phenylenediamine purity of 98%, N, N'- bis- is greater than 98%.
7. methanol purity described in step (2) is greater than 99% in claim 4.
8. lime described in step is the mixture of calcium oxide and magnesia in claim 4, wherein the mass content of calcium oxide
Greater than 60%.
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| CN201910671488.3A CN110436825A (en) | 2019-07-24 | 2019-07-24 | A kind of pitch cold-repairing material antistripping agent and preparation method thereof |
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| CN201910671488.3A CN110436825A (en) | 2019-07-24 | 2019-07-24 | A kind of pitch cold-repairing material antistripping agent and preparation method thereof |
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Cited By (1)
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| CN116730657A (en) * | 2023-07-03 | 2023-09-12 | 芜湖城瑞路桥建设有限公司 | Cold patch asphalt mixture and preparation method thereof |
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| CN116730657A (en) * | 2023-07-03 | 2023-09-12 | 芜湖城瑞路桥建设有限公司 | Cold patch asphalt mixture and preparation method thereof |
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Application publication date: 20191112 |
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