CN105645850A - Pavement quick-repair asphalt mixture, and preparation method and application method thereof - Google Patents
Pavement quick-repair asphalt mixture, and preparation method and application method thereof Download PDFInfo
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- CN105645850A CN105645850A CN201610015226.8A CN201610015226A CN105645850A CN 105645850 A CN105645850 A CN 105645850A CN 201610015226 A CN201610015226 A CN 201610015226A CN 105645850 A CN105645850 A CN 105645850A
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- water
- road surface
- asphalt
- emulsified asphalt
- epoxy resin
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
-
- 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
- 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
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C23/00—Auxiliary devices or arrangements for constructing, repairing, reconditioning, or taking-up road or like surfaces
- E01C23/06—Devices or arrangements for working the finished surface; Devices for repairing or reconditioning the surface of damaged paving; Recycling in place or on the road
- E01C23/09—Devices or arrangements for working the finished surface; Devices for repairing or reconditioning the surface of damaged paving; Recycling in place or on the road for forming cuts, grooves, or recesses, e.g. for making joints or channels for markings, for cutting-out sections to be removed; for cleaning, treating, or filling cuts, grooves, recesses, or fissures; for trimming paving edges
- E01C23/0966—Devices or arrangements for working the finished surface; Devices for repairing or reconditioning the surface of damaged paving; Recycling in place or on the road for forming cuts, grooves, or recesses, e.g. for making joints or channels for markings, for cutting-out sections to be removed; for cleaning, treating, or filling cuts, grooves, recesses, or fissures; for trimming paving edges for filling or priming, with or without working the surface of the filling or applying particulate material thereto, e.g. for filling the joints of stone-sett paving
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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
- 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
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Materials Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Civil Engineering (AREA)
- Architecture (AREA)
- Mining & Mineral Resources (AREA)
- Road Paving Structures (AREA)
- Road Repair (AREA)
Abstract
The invention relates to a pavement quick-repair asphalt mixture, and a preparation method and application method thereof. The pavement quick-repair asphalt mixture is prepared from water, aggregate, water-based epoxy resin modified emulsified asphalt, ore powder and cement according to the weight ratio of (0-5):100:(5-10):(1-10):(0-3). The pavement quick-repair asphalt mixture is simple and easy to operate, is convenient and quick for construction, does not have volatile contaminants, can implement in-time opening to traffic, and has low requirements for the construction environment.
Description
Technical field
The invention belongs to building field, relate to a kind of repairing road surface at quick speed asphalt and preparation method thereof, using method.
Background technology
Development along with highway in China network, repair after road surface breakage and also become more and more important, usual asphalt concrete pavement pit repairing material is to adopt hot-mix asphalt mixture, but be subject to weather, the impact of workload tends not to realize timely Rapid-Repair, the even more serious pavement diseases such as subgrade frost heaving will be caused particularly in spring, winter, begin with asphalt cold repairing material in the last few years and Asphalt Pavement Damage is carried out Rapid-Repair.
Currently used cold repairing asphalt mixture mainly has two categories below: solvent-borne type cold-patch compound, emulsion-type cold-patch compound.
Wherein solvent-borne type cold-patch compound uses the petroleum solvent such as diesel oil, kerosene to be diluted by Colophonium as diluent, makes Colophonium have relatively low viscosity under room temperature or low temperature and ensure that Colophonium has certain mobility. This cold-patch compound is little due to asphalt viscosity, it is possible to store the longer time, without bigger External Force Acting during storage, molding bonded can't occur between mixture particle. When on the road surface that paves after compacting, diluent in compound volatilizees gradually under extraneous such environmental effects, gradually form the entirety with intensity, but the volatilization of solvent easily causes environmental pollution, and the early strength of this kind of cold-repairing material is low, gain in strength slowly, be only adapted to road surface provisional, should acute Rapid-Repair, it is difficult to meet the requirement of high-grade highway, particularly highway Rapid-Repair.
What emulsion-type cold-patch compound binder adopted is emulsified asphalt, and emulsified asphalt has the features such as pollution-free, easy construction, but traditional Emulsified Asphalt Mixture limits its range of application due to shortcomings such as emulsified asphalt viscosity are low, intensity is low.
It is thus desirable to provide a kind of simple to operation, easy construction, fast, non-volatility pollutes, and energy is open to traffic in time, and construction environment is required low asphalt.
Summary of the invention
In order to overcome the deficiencies in the prior art, the present invention provides a kind of repairing road surface at quick speed asphalt and preparation method thereof, using method. The compound non-volatility of the present invention pollutes, and environmental requirement is low, easy construction, fast.
The invention provides following technical scheme:
A kind of repairing road surface at quick speed asphalt, raw material includes water and gathers materials, raw material also includes emulsified asphalt modified with water-epoxy resin, mineral aggregate and cement, wherein gathers materials: breeze: cement: emulsified asphalt modified with water-epoxy resin: the weight ratio of water is 100: (1��10): (0��3): (5��10): (0��5).
Stacking under condition in the open if gathered materials, then the impact of rainwater of originally experiencing of gathering materials, causing that itself is moisture, therefore, in raw material, water can be not added with; The effect of cement is the early strength improving compound, when early strength is less demanding, it is possible to need not add cement.
In such scheme preferably, gather materials: breeze: cement: emulsified asphalt modified with water-epoxy resin: the weight ratio of water is 95: 4: 1: 8: 3.
In any of the above-described scheme preferably, the raw material preparing described emulsified asphalt modified with water-epoxy resin includes aqueous epoxy resins, firming agent and emulsified asphalt, and wherein the weight ratio of aqueous epoxy resins, firming agent and emulsified asphalt is 2��10:2��10:80��100.
In any of the above-described scheme preferably, the raw material preparing described emulsified asphalt modified with water-epoxy resin includes aqueous epoxy resins, firming agent and emulsified asphalt, wherein the weight ratio 5:5:100 of aqueous epoxy resins, firming agent and emulsified asphalt.
Based on laboratory test research and economical consideration, the optimum weight percent of aqueous epoxy resins, firming agent and emulsified asphalt is defined as 5:5:100.
In any of the above-described scheme preferably, the method preparing described emulsified asphalt modified with water-epoxy resin is: is joined in emulsified asphalt by aqueous epoxy resins and is stirred, and adds firming agent and is again stirring for uniformly; Or after aqueous epoxy resins is mixed homogeneously with firming agent, join in emulsified asphalt and stir.
So add purpose be, for ensure both mix homogeneously, ensure that it will not too fast generation curing reaction within the regular hour simultaneously.
In any of the above-described scheme preferably, described aqueous epoxy resins includes EP-20 solid epoxy water-based emulsion, one or more of EP-44 semisolid epoxy resin water-based emulsion or EP-51 liquid epoxies water-based emulsion.
In any of the above-described scheme preferably, described firming agent includes modified multicomponent amine epoxy curing agent water-based emulsion, modified fat amine epoxy curing agent water-based emulsion, one or more of aromatic amine epoxy curing agent water-based emulsion.
In any of the above-described scheme preferably, described emulsified asphalt includes cationic emulsified bitumen.
In any of the above-described scheme preferably, described in gather materials and include that 10-15mm gathers materials, 5-10mm gathers materials and 0-5mm gathers materials, the weight ratio of three is 30:27:38.
In any of the above-described scheme preferably, described breeze includes limestone dust, limestone mineral powder or basalt breeze.
In any of the above-described scheme preferably, described cement includes Portland cement or road road cement.
Gather materials in the present invention, breeze should meet asphalt highway job specfication, and cement is Portland cement or road cement; Emulsified asphalt also should ensure that except meeting asphalt highway specification and will not react with aqueous epoxy resins and firming agent; Aqueous epoxy resins and firming agent should according to being open to traffic the time and the miscible degree with emulsified asphalt selects.
The preparation method that the present invention also provides for described repairing road surface at quick speed asphalt, including following steps:
(1) will gather materials and prepare by proportioning, and carry out dry mixing 10-15s, stir;
(2) the middle addition water that gathers materials obtained in step (1), by aggregate blending 30-45s, moistening;
(3) in the mixture that step (3) obtains, add emulsified asphalt modified with water-epoxy resin, after adding cement and breeze, after mix 60-90s, stir without grey material, i.e. described repairing road surface at quick speed asphalt.
In such scheme preferably, the raw material preparing described emulsified asphalt modified with water-epoxy resin includes aqueous epoxy resins, firming agent and emulsified asphalt, and wherein the weight ratio of aqueous epoxy resins, firming agent and emulsified asphalt is (2��10): (2��10): (80��100).
In any of the above-described scheme preferably, the raw material preparing described emulsified asphalt modified with water-epoxy resin includes aqueous epoxy resins, firming agent and emulsified asphalt, wherein the weight ratio 5:5:100 of aqueous epoxy resins, firming agent and emulsified asphalt.
In any of the above-described scheme preferably, the method preparing described emulsified asphalt modified with water-epoxy resin is: is joined in emulsified asphalt by aqueous epoxy resins and is stirred, and adds firming agent and is again stirring for uniformly; Or after aqueous epoxy resins is mixed homogeneously with firming agent, join in emulsified asphalt and stir.
This preparation method is simple to operation, it is not necessary to main equipment, and compound need not heat, and the compound being simultaneously manufactured is non-volatile, pollution-free. Simultaneously preparation method amount as required can configure raw material, it is to avoid waste.
The present invention also provides for the using method of described repairing road surface at quick speed asphalt, pit is carried out milling cleaning, bottom pit and surrounding brushing sticking layer oil, by in described mixture laying to pit, carry out compacting, after compacting operation completes, repairing road surface is carried out painting with former road surface joint part and spreads Colophonium edge sealing.
Bottom pit and surrounding brushing sticking layer oil be to strengthen and the bonding on former road surface, carry out painting spread Colophonium edge sealing to repairing road surface and former road surface joint part, be prevent rainwater from oozing under junction, the old and new road surface.
In such scheme preferably, described mixture laying includes layering to the mode in pit and paves.
In such scheme preferably, paving thickness is 2-4 times of nominal maximum aggregate size.
In any of the above-described scheme preferably, described compacting operation adopts baby roller or vibrating plate compactor to complete.
In such scheme preferably, control compactness, namely after compacting voidage at 6%-10%.
The present invention also provides for the using method of repairing road surface at quick speed asphalt prepared by described preparation method, pit is carried out milling cleaning, bottom pit and surrounding brushing sticking layer oil, by in described mixture laying to pit, carry out compacting, after compacting operation completes, repairing road surface is carried out painting with former road surface joint part and spreads Colophonium edge sealing.
In such scheme preferably, described mixture laying includes layering to the mode in pit and paves.
In such scheme preferably, paving thickness is 2-4 times of nominal maximum aggregate size.
In any of the above-described scheme preferably, described compacting operation adopts baby roller or vibrating plate compactor to complete.
In such scheme preferably, control compactness, namely after compacting voidage at 6%-10%.
The compound of the present invention is in the preparation, each shelves can be gathered materials and transport to scene and coordinate in proportion by the configuration wherein gathered materials, it is also possible to having prepared in proportion in stock ground, job site is moved in entrucking to, add water and modified emulsifying asphalt to being done directly after scene, carry out mix.
The repairing road surface at quick speed asphalt of the present invention modifying function by epoxy resin, epoxy resin is uniformly distributed after adding with firming agent in emulsified asphalt, Colophonium is attached in the framing structure that epoxy resin is formed, form the three dimensional structure that intensity is higher, additionally the caking property of epoxy resin is better, thus it is possible to vary the shortcoming that conventional emulsification goes through the bad adhesion of green grass or young crops.The slow feature of the gain in strength of traditional solvent-borne Colophonium is overcome by the solidification of epoxy resin. The compound of the present invention takes job mix, it is to avoid the steps such as storage, can directly use after mix, amount carries out mix as desired, it is to avoid waste. The repairing road surface at quick speed asphalt of the present invention is simple to operation, easy construction, and fast, non-volatility pollutes, and energy is open to traffic in time, requires low to construction environment.
Detailed description of the invention
In order to further appreciate that the technical characteristic of the present invention, below in conjunction with specific embodiment, the present invention is set forth in. The present invention is only had exemplary effect by embodiment, and does not have any restrictive effect, and the amendment of any unsubstantiality that those skilled in the art makes on the basis of the present invention all should belong to protection scope of the present invention.
Embodiment 1
A kind of repairing road surface at quick speed asphalt, raw material includes water and gathers materials, raw material also includes emulsified asphalt modified with water-epoxy resin, mineral aggregate and cement, wherein gathers materials: breeze: cement: emulsified asphalt modified with water-epoxy resin: the weight ratio of water is 95: 4: 1: 8: 3.
Embodiment 2
A kind of repairing road surface at quick speed asphalt, raw material also includes emulsified asphalt modified with water-epoxy resin, mineral aggregate and cement, wherein gathers materials: breeze: cement: emulsified asphalt modified with water-epoxy resin: the weight ratio of water is 94: 5.5: 0.5: 8: 0.
Embodiment 3
A kind of repairing road surface at quick speed asphalt, in such scheme preferably, raw material also includes emulsified asphalt modified with water-epoxy resin, mineral aggregate and cement, wherein gathers materials: breeze: cement: emulsified asphalt modified with water-epoxy resin: the weight ratio of water is 95: 5: 0: 7: 3.
Embodiment 4
A kind of repairing road surface at quick speed asphalt, in such scheme preferably, raw material also includes emulsified asphalt modified with water-epoxy resin, mineral aggregate and cement, wherein gathers materials: breeze: cement: emulsified asphalt modified with water-epoxy resin: the weight ratio of water is 94: 5: 1: 8: 3.
Embodiment 5
The difference of the present embodiment and embodiment 1 is: the raw material preparing described emulsified asphalt modified with water-epoxy resin includes aqueous epoxy resins, firming agent and emulsified asphalt, and wherein the weight ratio of aqueous epoxy resins, firming agent and emulsified asphalt is 5:5:100.
The present invention prepares the raw material of described emulsified asphalt modified with water-epoxy resin and includes aqueous epoxy resins, firming agent and emulsified asphalt, and wherein the weight ratio of aqueous epoxy resins, firming agent and emulsified asphalt also may be selected to be 2: 2: 80 or 10:10:100.
Embodiment 6
The difference of the present embodiment and embodiment 5 is: the method preparing described emulsified asphalt modified with water-epoxy resin is: is joined in emulsified asphalt by aqueous epoxy resins and is stirred, and adds firming agent and is again stirring for uniformly; Or after aqueous epoxy resins is mixed homogeneously with firming agent, join in emulsified asphalt and stir.
Embodiment 6
The difference of the present embodiment and embodiment 5 is: described aqueous epoxy resins includes EP-20 solid epoxy water-based emulsion, one or more of EP-44 semisolid epoxy resin water-based emulsion or EP-51 liquid epoxies water-based emulsion.
Embodiment 7
The difference of the present embodiment and embodiment 6 is: described firming agent includes modified multicomponent amine epoxy curing agent water-based emulsion, modified fat amine epoxy curing agent water-based emulsion, one or more of aromatic amine epoxy curing agent water-based emulsion.
Embodiment 8
The difference of the present embodiment and embodiment 7 is: described emulsified asphalt includes cationic emulsified bitumen.
Embodiment 9
The difference of the present embodiment and embodiment 1 is: described in gather materials and include that 10-15mm gathers materials, 5-10mm gathers materials and 0-5mm gathers materials, the weight ratio of three is 30:27:38.
Embodiment 10
The difference of the present embodiment and embodiment 1 is: described breeze includes limestone dust, limestone mineral powder or basalt breeze.
Embodiment 11
The difference of the present embodiment and embodiment 11 is: described cement includes Portland cement or road cement.
Embodiment 12
A kind of preparation method of repairing road surface at quick speed asphalt, including following steps:
(1) will gather materials and prepare by proportioning, and carry out dry mixing 10-15s, stir;
(2) the middle addition water that gathers materials obtained in step (1), by aggregate blending 30-45s, by aggregate blending moistening;
(3) in the mixture that step (3) obtains, add emulsified asphalt modified with water-epoxy resin, after adding cement and breeze, after mix 60-90s, stir without grey material, i.e. described repairing road surface at quick speed asphalt.
Embodiment 13
The difference of the present embodiment and embodiment 12 is: the raw material preparing described emulsified asphalt modified with water-epoxy resin includes aqueous epoxy resins, firming agent and emulsified asphalt, and wherein the weight ratio of aqueous epoxy resins, firming agent and emulsified asphalt is 5:5:100.
Embodiment 14
The difference of the present embodiment and embodiment 12 is: the method preparing described emulsified asphalt modified with water-epoxy resin is: is joined in emulsified asphalt by aqueous epoxy resins and is stirred, and adds firming agent and is again stirring for uniformly; Or after aqueous epoxy resins is mixed homogeneously with firming agent, join in emulsified asphalt and stir.
Embodiment 15
The using method of repairing road surface at quick speed asphalt described in a kind of embodiment 1, pit is carried out milling cleaning, bottom pit and surrounding brushing sticking layer oil, by in described mixture laying to pit, carry out compacting, after compacting operation completes, repairing road surface is carried out painting with former road surface joint part and spreads Colophonium edge sealing.
Embodiment 16
The difference of the present embodiment and embodiment 15 is: described mixture laying includes layering to the mode in pit and paves. Paving thickness is 2-4 times of nominal maximum aggregate size.
Embodiment 17
The difference of the present embodiment and embodiment 16 is: described compacting operation adopts baby roller or vibrating plate compactor to complete. Control compactness, namely after compacting voidage at 6%-10%.
Embodiment 18
A kind of using method of the repairing road surface at quick speed asphalt of embodiment 12 preparation, pit is carried out milling cleaning, bottom pit and surrounding brushing sticking layer oil, by in described mixture laying to pit, carry out compacting, after compacting operation completes, repairing road surface is carried out painting with former road surface joint part and spreads Colophonium edge sealing.
Embodiment 19
The difference of the present embodiment and embodiment 18 is: described mixture laying includes layering to the mode in pit and paves. Paving thickness is 2-4 times of nominal maximum aggregate size.
Embodiment 20
The difference of the present embodiment and embodiment 19 is: described compacting operation adopts baby roller or vibrating plate compactor to complete. Control compactness, namely after compacting voidage at 6%-10%.
Embodiment 21:
To fill up the pit of 1m �� 1.5m �� 0.08m, the emulsified asphalt modified with water-epoxy resin asphalt mixture design using nominal particle diameter to be 13.2 is example (it is 13.2mm that current road surface common type is mainly nominal particle diameter).
1. raw material selects and performance test
Test raw materials mainly has tri-kinds of crushed stone material of 0-5mm, 5-10mm, 10-15mm, limestone mineral powder, cement, aqueous epoxy resins, firming agent and emulsified asphalt.
Table 1.10-15mm coarse aggregate result of the test
| Pilot project | Unit | Technology requirement | Result of the test | Test method |
| Apparent relative density is not less than | �� | 2.60 | 2.803 | T0304 |
| Bulk specific gravity | �� | �� | 2.664 | T0304 |
| Water absorption rate is not more than | % | 2.0 | 1.86 | T0304 |
| Building stones crush values is not more than | % | 28 | 12.6 | T0316 |
| Los Angeles abrasion loss is not more than | % | 30 | 15.4 | T0317 |
| Adhesion is not less than | Level | 3 | 4 | T0616 |
| Flat-elongated particles content is not more than | % | 18 | �� | T0312 |
| Wherein particle diameter is not more than more than 9.5mm | % | 15 | 7.8 | T0312 |
| Wherein particle diameter is not more than less than 9.5mm | % | 20 | �� | T0312 |
| < 0.075mm granule content is not more than WATER-WASHING METHOD | % | 1 | 0.8 | T0310 |
Table 2.4.75-9.5mm coarse aggregate result of the test
| Pilot project | Unit | Technology requirement | Result of the test | Test method |
| Apparent relative density is not less than | �� | 2.60 | 2.818 | T0304 |
| Bulk specific gravity | �� | �� | 2.683 | T0304 |
| Water absorption rate is not more than | % | 2.0 | 1.79 | T0304 |
| Flat-elongated particles content is not more than | % | 15 | �� | T0312 |
| Wherein particle diameter is not more than more than 9.5mm | % | 12 | �� | T0312 |
| Wherein particle diameter is not more than less than 9.5mm | % | 18 | 6.4 | T0312 |
| < 0.075mm granule content is not more than WATER-WASHING METHOD | % | 3 | 0.6 | T0310 |
Table 3.2.36-4.75mm fine aggregate result of the test
| Pilot project | Unit | Technology requirement | Result of the test | Test method |
| Apparent relative density is not less than | �� | 2.60 | 2.813 | T0330 |
| Bulk specific gravity | �� | �� | 2.669 | T0330 |
| Water absorption rate is not more than | % | 2.0 | 1.92 | T0304 |
| < 0.075mm granule content is not more than WATER-WASHING METHOD | % | 3 | 0.9 | T0310 |
Table 4.0-5mm fine aggregate result of the test
Table 5. breeze result of the test
| Pilot project | Unit | Technical standard | Result of the test | Test method |
| Apparent density, is not less than | - | 2.5 | 2.732 | T0352 |
| Water content, is not more than | % | 1 | 0.5 | T0332 |
| Particle size range < | % | 100 | 100 | T0351 |
| < 0.15mm | % | 90��100 | 99.75 | T0351 |
| < 0.075mm | % | 75��100 | 88.56 | T0351 |
| Hydrophilic coefficient | �� | 1 | 0.71 | T0353 |
| Plasticity index | % | 4 | 2.8 | T0354-2000 |
The character of table 6 aqueous epoxy resins and firming agent
| Project | Aqueous epoxy resins | Firming agent |
| Outward appearance | Milky uniform liquid | Yellowish transparency liquid |
| Solid content (%) | ��58 | ��50 |
| Proportion (g/cm3) | 1.05-1.10 | 1.05-1.10 |
| Viscosity (pa.s) | ��2 | ��10 |
| PH value | 6-8 | 8-10 |
| Epoxide number | 0.24-0.27 | - |
| Active hydrogen equivalent weight | - | 300 |
In table 6, aqueous epoxy resins is EP51 liquid epoxies water-based emulsion, i.e. EP51; Firming agent is aromatic amine epoxy curing agent water-based emulsion, i.e. waterborne curing agent AB-HGF.
Table 7 emulsified asphalt quality testing table (" highway engineering Colophonium and Asphalt Mixture Experiment code " (JTGE20-2011))
Table 8. gathers materials and the gradation composition of breeze
According to above-mentioned each table it can be seen that raw-material test and technical standard contrast, raw material meets the requirement of existing specification.
2, parameter is determined
The asphalt mixture gradation that this example adopts is as shown in table 9.
The formate gradation composition of table 9 asphalt
Can be calculated according to table 8 and table 9:
10-15mm:5-10mm:0-5mm: breeze: cement=30:27:38:4:1
Need additional wet water 3% (for gathering materials, the 3% of breeze and cement gross weight), emulsified asphalt modified with water-epoxy resin binder 8% (for gathering materials, the 8% of breeze and cement gross weight).
The pit being computed filling up a 1m �� 1.5m �� 0.08m needs compound 333kg, wherein 10-15mm need 90kg, 5-10mm's to need 81kg, 0-5mm needs 114kg, breeze to need 12kg, and cement needs 3kg, water needs 9kg, emulsified asphalt modified with water-epoxy resin 24kg.
3, the preparation of compound:
1) load weighted gathering materials is prepared, carry out dry mixing 10-15s, mix homogeneously;
2) by each to aqueous epoxy resins and firming agent 5% (accounting for the mass fraction of emulsified asphalt), it is separately added in emulsified asphalt and stirs;
3) the uniform 30-45s of water mix of the middle addition 3% of gathering materials step (1) obtained;
4) in the mixture that step (3) obtains, the emulsified asphalt that addition step (2) has configured is stirred;
5) in the mixture that step (4) obtains, cement and breeze are added, after being again stirred 60-90s, until compound is without grey, till mix is uniform, i.e. described repairing road surface at quick speed asphalt.
4, the use of compound
Its using method is: Water Damage pit place is carried out milling, and the pit degree of depth of milling is 8cm, is cleaned up by milling material, bottom is cleaned;
Bottom pit and surrounding brushing sticking layer oil;
First by the mixture laying that mixes to pit, pave as 6cm for the first time, adopt vibrating plate compactor to tamp, continue making and filled up, fill into middle high, the convex that surrounding is low, again tamp with vibrating plate compactor; Repairing road surface is carried out painting with former road surface joint part and spreads Colophonium edge sealing.
The configuration more than gathered materials can complete in stock ground, and job site is moved in entrucking to, adds water and modified emulsifying asphalt to being done directly after scene, carries out mix.
This compound takes job mix, it is to avoid the steps such as storage, can directly use after mix, amount carries out mix as desired, it is to avoid waste.
Current specifications thinks that cold repairing asphalt mixture intensity needs to reach 2KN, and the compound of the present embodiment, namely proportioning is for gather materials: breeze: cement: emulsified asphalt modified with water-epoxy resin: when the weight ratio of water is 95: 4: 1: 8: 3, within two hours, intensity is up to 4.2KN, and final strength is up to 15.8KN. It addition, in proportioning for gather materials: breeze: cement: emulsified asphalt modified with water-epoxy resin: when the weight ratio of water is 95: 5: 0: 7: 3, two hours intensity is 3.5KN, and final strength is 13.2KN.
Claims (10)
1. a repairing road surface at quick speed asphalt, raw material includes water and gathers materials, it is characterized in that: raw material also includes emulsified asphalt modified with water-epoxy resin, mineral aggregate and cement, wherein gathers materials: breeze: cement: emulsified asphalt modified with water-epoxy resin: the weight ratio of water is 100: (1��10): (0��3): (5��10): (0��5).
2. repairing road surface at quick speed asphalt according to claim 1, it is characterised in that: gather materials: breeze: cement: emulsified asphalt modified with water-epoxy resin: the weight ratio of water is 95: 4: 1: 8: 3.
3. repairing road surface at quick speed asphalt according to claim 1 and 2, it is characterized in that: the raw material preparing described emulsified asphalt modified with water-epoxy resin includes aqueous epoxy resins, firming agent and emulsified asphalt, wherein the weight ratio of aqueous epoxy resins, firming agent and emulsified asphalt is (2��10): (2��10): (80��100).
4. repairing road surface at quick speed asphalt according to claim 3, it is characterized in that: the raw material preparing described emulsified asphalt modified with water-epoxy resin includes aqueous epoxy resins, firming agent and emulsified asphalt, wherein the weight ratio 5:5:100 of aqueous epoxy resins, firming agent and emulsified asphalt.
5. repairing road surface at quick speed asphalt according to claim 4, it is characterized in that: the method preparing described emulsified asphalt modified with water-epoxy resin is: is joined in emulsified asphalt by aqueous epoxy resins and is stirred, add firming agent and be again stirring for uniformly; Or after aqueous epoxy resins is mixed homogeneously with firming agent, join in emulsified asphalt and stir.
6. repairing road surface at quick speed asphalt according to claim 3, it is characterized in that: described aqueous epoxy resins includes EP-20 solid epoxy water-based emulsion, one or more in EP-44 semisolid epoxy resin water-based emulsion or EP-51 liquid epoxies water-based emulsion.
7. repairing road surface at quick speed asphalt according to claim 3, it is characterized in that: described firming agent includes modified multicomponent amine epoxy curing agent water-based emulsion, modified fat amine epoxy curing agent water-based emulsion, one or more of aromatic amine epoxy curing agent water-based emulsion.
8. the preparation method of repairing road surface at quick speed asphalt according to any one of claim 1 to 7, it is characterised in that: include following steps:
(1) will gather materials and prepare by proportioning, and carry out dry mixing 10-15s, stir;
(2) the middle addition water that gathers materials obtained in step (1), by aggregate blending 30-45s, moistening;
(3) in the mixture that step (3) obtains, add emulsified asphalt modified with water-epoxy resin, after adding cement and breeze, after mix 60-90s, stir without grey material, i.e. described repairing road surface at quick speed asphalt.
9. the using method of repairing road surface at quick speed asphalt according to any one of claim 1 to 7, it is characterized in that: pit is carried out milling cleaning, bottom pit and surrounding brushing sticking layer oil, by in described mixture laying to pit, carry out compacting, after compacting operation completes, repairing road surface is carried out painting with former road surface joint part and spreads Colophonium edge sealing.
10. the using method of the repairing road surface at quick speed asphalt that prepared by preparation method described in claim 8, it is characterized in that: pit is carried out milling cleaning, bottom pit and surrounding brushing sticking layer oil, by in described mixture laying to pit, carry out compacting, after compacting operation completes, repairing road surface is carried out painting with former road surface joint part and spreads Colophonium edge sealing.
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