CN111606605A - Water-based epoxy resin modified emulsified asphalt cold-patch material for rapid road repair and preparation method thereof - Google Patents
Water-based epoxy resin modified emulsified asphalt cold-patch material for rapid road repair and preparation method thereof Download PDFInfo
- Publication number
- CN111606605A CN111606605A CN202010527294.9A CN202010527294A CN111606605A CN 111606605 A CN111606605 A CN 111606605A CN 202010527294 A CN202010527294 A CN 202010527294A CN 111606605 A CN111606605 A CN 111606605A
- Authority
- CN
- China
- Prior art keywords
- parts
- epoxy resin
- water
- emulsified asphalt
- cold
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
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
- 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
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
- C04B2111/0075—Uses not provided for elsewhere in C04B2111/00 for road construction
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/72—Repairing or restoring existing buildings or building materials
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- 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)
- Road Paving Structures (AREA)
Abstract
The invention relates to a water-based epoxy resin modified emulsified asphalt cold-patch material for rapid road repair and a preparation method thereof, wherein the cold-patch material comprises a cementing material and a mineral material, and the cementing material comprises the following components in parts by weight: 80-84 parts of cationic emulsified asphalt, 16-20 parts of waterborne epoxy resin emulsion, 4-5 parts of amine curing agent, 20-22 parts of water glass and 0.5-2.0 parts of auxiliary agent; the mineral aggregate comprises the following components in parts by weight: 50-52 parts of coarse aggregate, 40-42 parts of fine aggregate, 4.5-5.0 parts of composite cement, 2.4-2.8 parts of metakaolin and 0.6-0.7 part of slag; the mass ratio of the cementing material to the mineral material is 9-10: 100. The cold-patch material has high early strength, quick later strength formation, firm combination with the old pavement, construction at room temperature and low temperature, quick traffic opening, good road performance, and suitability for pre-curing, local repairing and later curing of asphalt pavement.
Description
Technical Field
The invention belongs to the technical field of emulsified asphalt cold-patch materials for rapid road repair, and particularly relates to a water-based epoxy resin modified emulsified asphalt cold-patch material for rapid road repair and a preparation method thereof.
Background
With the needs of urban development and transportation, the road mileage of China is rising year by year, and asphalt pavement is the most common. Road network systems are increasingly large, and road traffic is also developed towards the direction of large traffic volume and heavy load, so that the diseases of road structures are gradually increased. Common diseases of asphalt pavements include cracks, ruts, pits, loose peeling and the like, which not only seriously affect the driving safety of the pavements, but also shorten the service life of the roads. In the face of the increasingly dense and perfect road network system construction, how to quickly and efficiently realize the pre-maintenance, local repair and later maintenance of the asphalt pavement, ensure the driving safety and prolong the service life of the road becomes the key point and focus of research.
The emulsified asphalt is a common road maintenance binding material capable of being cold-constructed, and is a road building material which is liquefied (emulsified) into low-viscosity and good-fluidity road building material at normal temperature by diffusing the road asphalt used at high temperature into water through methods such as mechanical stirring, chemical stabilization and the like; the method has the advantages of simple construction, energy conservation, consumption reduction and small environmental influence, and is widely applied to the pre-curing and local repairing of the asphalt pavement. However, the common emulsified asphalt is used as a cementing material, which has the disadvantages of low cohesive force, insufficient cohesive force and strength, temperature sensitivity, poor water resistance and stability, etc., and in order to improve the disadvantages, the prior art usually adopts modified asphalt to prepare emulsified asphalt or high polymer directly modified emulsified asphalt, and adopts water-based epoxy resin modified emulsified asphalt as one of the emulsified asphalt.
The water-based epoxy resin changes the dispersion state of the epoxy resin in water by a physical and chemical method to form water-based emulsion taking water as a continuous phase, is nontoxic and tasteless, can be cured at room temperature and under a humid condition, has controllable curing time, has higher crosslinking density of a cured product, and has good chemical stability and high viscosity; the modified asphalt is mixed into an emulsified asphalt system, and the temperature resistance, durability, shear strength and stability of the emulsified asphalt mixture can be obviously improved along with the increase of the mixing amount. However, the mixing amount of the water-based epoxy resin in the emulsified asphalt mixture cannot be too high, otherwise, the skid resistance of the pavement is seriously affected, and the pavement performance is reduced.
When the asphalt pavement is locally repaired, the cold patch is required to have proper service time limit and shorter open traffic time, and the problems of low early strength, slow formation of later strength and insufficient bonding strength with the old pavement are found when the mixing amount of the water-based epoxy resin in the emulsified asphalt mixture is adjusted at present on the basis of ensuring the skid resistance of the pavement, so that the quick cold patch for the asphalt pavement cannot be realized.
Disclosure of Invention
The invention aims to provide the water-based epoxy resin modified emulsified asphalt cold-patch material for quickly repairing the road, which has high early strength, quick later strength formation and high bonding strength with the old road surface.
The invention also aims to provide a preparation method of the waterborne epoxy resin modified emulsified asphalt cold-patch material for rapid road repair.
In order to achieve the purpose, the invention adopts the following technical scheme:
the water-based epoxy resin modified emulsified asphalt cold-patch material for rapid road repair comprises a cementing material and a mineral material, wherein the cementing material comprises the following components in parts by weight: 80-84 parts of cationic emulsified asphalt, 16-20 parts of waterborne epoxy resin emulsion, 4-5 parts of amine curing agent, 20-22 parts of water glass and 0.5-2.0 parts of auxiliary agent;
the mineral aggregate comprises the following components in parts by weight: 50-52 parts of coarse aggregate with the particle size of 2.36mm, 40-42 parts of fine aggregate with the particle size of 2.36-0.075mm, 4.5-5.0 parts of composite cement, 2.4-2.8 parts of metakaolin and 0.6-0.7 part of slag;
the mass ratio of the cementing material to the mineral material is 9-10: 100.
The solid content of the cationic emulsified asphalt is not lower than 55 percent; the solid content of the waterborne epoxy resin emulsion is not lower than 45%. Further, the solid content of the cationic emulsified asphalt is 55-65%; the solid content of the waterborne epoxy resin emulsion is 45-55%. The cationic emulsified asphalt and the water-based epoxy resin emulsion with high solid content are selected as much as possible to control the overall water-cement ratio of the cold-patch material.
The modulus of the water glass is 1.4-1.6, and the water content is not higher than 55%. The water glass is low-modulus water glass, and can be prepared from commercially available high-modulus water glass by adjusting modulus with sodium hydroxide. The dosage of the water glass satisfies that the overall shock solid ratio of the cold-patch material is 0.49-0.55, wherein the shock solid ratio refers to the ratio of the water glass to the total mass of the metakaolin and the slag.
The auxiliary agent is any one or combination of a water reducing agent, a defoaming agent, an early strength agent, a coagulation accelerator and a retarder. Generally, the auxiliary agent is a combination of a water reducing agent, a defoaming agent and an early strength agent; other additives can be selected according to requirements, such as a coagulant, a retarder and the like, so as to adjust the appropriate usable time limit and open time.
The composite cement comprises the following components in percentage by mass: 70-75% of sulphoaluminate cement and 25-30% of ordinary portland cement.
The particle sizes of the composite cement, the metakaolin and the slag are all less than 0.075 mm.
The water-cement ratio of the cold-feeding material is not more than 0.50; the water in the water-cement ratio contains water contained in the cationic emulsified asphalt, the water-based epoxy resin emulsion and the water glass; the ash in the water-cement ratio is the sum of the composite cement, the metakaolin and the slag. Further, the water-cement ratio of the cold feed is 0.45-0.50.
The preparation method of the water-based epoxy resin modified emulsified asphalt cold-patch material for rapid road repair comprises the following steps:
1) uniformly mixing the coarse aggregate and the fine aggregate according to the proportion, then adding the composite cement, the metakaolin and the slag according to the formula amount, and stirring and mixing to obtain mineral aggregate;
2) uniformly mixing the aqueous epoxy resin emulsion and the amine curing agent according to the formula amount, adding the cationic emulsified asphalt and the auxiliary agent according to the formula amount, and stirring and mixing to obtain mucilage; mixing the obtained cement with water glass according to the formula amount, and uniformly stirring to obtain a cementing material;
3) mixing the cementing material obtained in the step 2 with the mineral aggregate obtained in the step 1) in proportion to obtain the cement.
The water-based epoxy resin modified emulsified asphalt cold-patch material for quickly repairing roads comprises a cementing material and a mineral material, wherein the cementing material comprises cationic emulsified asphalt, water-based epoxy resin emulsion, an amine curing agent, water glass and an auxiliary agent. The cementing material is formed by modifying emulsified asphalt through waterborne epoxy resin to form a uniform two-phase structure which takes the epoxy resin as a framework structure and the asphalt is inserted in the framework structure, so that the binding power and the structural strength of the cementing material are enhanced; meanwhile, the epoxy resin is thermosetting resin, and the framework structure formed after curing can improve the deformation resistance of the cold-patch material under high-temperature load and low-temperature load, so that the mechanical strength, high-temperature and low-temperature stability and water stability of the cold-patch material are improved. The water glass is an alkali activator of geopolymer, and is used together with metakaolin and slag in mineral aggregate to form an inorganic cementing material.
The mineral aggregate comprises coarse aggregate, fine aggregate, composite cement, metakaolin and slag; the mineral powder with the particle size of less than 0.075mm in the traditional graded mineral aggregate is replaced by the composite cement, the metakaolin and the slag, the composite cement is compounded by sulphoaluminate cement and ordinary portland cement, and the sulphoaluminate cement has the characteristics of rapid hardening and low alkalinity and can be used as a main inorganic cementing material to enable the cold-patch to have super-early strength; the function of ordinary portland cement is to ensure the stable increase of later strength. The metakaolin and the slag are used as the silicon-aluminum powder, and the geopolymer cementing material is formed by the excitation of water glass in the cementing material, and has the characteristics of quick setting and hardening, high early strength, quick increase of later strength, high and low temperature stability, acid and alkali resistance and the like. The geopolymer powder raw material is compounded with the composite cement to replace mineral powder in the traditional graded mineral aggregate, can fill pores among coarse aggregate, fine aggregate and the like to the maximum extent, is matched with a cementing material, is quickly hardened to form early strength during gelling and curing, and ensures that the structure after being cured by the cold-patch material is compact and high in strength. The coarse aggregate and the fine aggregate can be better wrapped in the composite cement hardening and geopolymer polycondensation process, the coarse aggregate and the fine aggregate are limited in a three-dimensional net structure formed by asphalt and epoxy resin, and the wrapping force of the repaired road surface on the aggregate is improved through an organic-inorganic gelling system (the organic gelling material forms a three-dimensional framework and a three-dimensional network, the inorganic gelling material fills pores, and the aggregate is bonded with the framework and the network together), so that the surface layer of the cold-patch material after hardening has enough friction coefficient when the traffic is opened in the early stage, the wrapped coarse aggregate and the fine aggregate are firmly fixed and are rolled by flying and rolled wheels, and the loose falling or stress splashing is not easy to occur; the coarse aggregate and the fine aggregate are almost completely reserved in the repaired pavement and are combined with the processes of organic gel system curing, composite cement hardening and geopolymer forming, so that the later strength development is fast and the strength formation is high. Meanwhile, the inorganic materials such as the composite cement, the metakaolin and the slag have large specific surface area, have better compatibility with the asphalt pavement needing to be repaired, can be better filled in the interface joint of the cold-patch material and the old pavement, and can carry the emulsified asphalt with good fluidity and the water-based epoxy resin to permeate and fill into small gaps and open pores of the old pavement, thereby increasing the interface joint area, enhancing the interface bonding force and forming the early strength of the interface joint; along with the development of the later strength of the cold feeding material, better interface bonding strength is obtained.
Through detection, after the cold-patch material is maintained for 3 hours, the compressive strength is over 10.4MPa, the breaking strength is over 5.2MPa, after 1 day, the compressive strength is increased to over 14.2MPa, the breaking strength is increased to over 6.3MPa, and the cold-patch material has the characteristic of high early strength; after curing for 3d, 7d and 28d, the compressive strength is gradually increased to more than 15.8MPa, 17.5MPa and 20.0MPa, the flexural strength is gradually increased to more than 7.7MPa, 8.9MPa and 10.4MPa, and the later strength is quickly formed. The bonding strength of the cold-patch material and the asphalt concrete is represented by drawing strength, after curing for 3 hours, the drawing strength reaches more than 2.3MPa, and after curing for 28 days, the drawing strength develops to more than 5.0MPa, and the bonding strength is high. The detection result shows that the water-based epoxy resin modified emulsified asphalt cold patching material for quickly repairing the road, which is obtained by the invention, has high early strength, quick formation of later strength and firm combination with the old pavement (asphalt concrete); the asphalt pavement repair agent is used for rapid repair of asphalt pavements, can be constructed at room temperature and low temperature, can rapidly open traffic, has good pavement performance, and can be used for road maintenance engineering construction such as pre-maintenance, local repair, post-maintenance and the like of asphalt pavements.
The water-based epoxy resin modified emulsified asphalt cold-patch material for quickly repairing roads has short construction time and is suitable for being prepared at present. When the method is used, the step 1) in the preparation method can be completed in a mixing station in advance, and the steps 2) and 3) are carried out on a construction site. The construction time of the cold-patch material is 1-1.5h, and the prepared cold-patch material needs to be completely constructed within 1-1.5 h.
Detailed Description
The present invention will be further described with reference to the following embodiments.
In a specific embodiment, the used cationic emulsified asphalt is commercial slow-breaking quick-setting type cationic emulsified asphalt, the solid content is 65%, the penetration degree (25 ℃) is 7.5mm, the ductility (15 ℃) is 65cm, and the storage stability at normal temperature is 0.2%/1 d and 0.4%/3 d.
The used waterborne epoxy resin is a commercially available self-emulsifying waterborne epoxy resin, the epoxy equivalent is 1500g/eq, the solid content is 50 percent, and the rotational viscosity at 25 ℃ is 1500mPa & s; the amine curing agent is a commercial matched curing agent, the amine value is 300mgKOH/g, and the rotational viscosity at 25 ℃ is 320mPa & s.
The water glass used was a commercially available water glass with a high modulus of 2.5 and a water content of 50% adjusted to a modulus of 1.5 and a water content of 45% with sodium hydroxide.
The water reducing agent is a commercial powder polycarboxylic acid high-efficiency water reducing agent, and the water reducing rate is more than or equal to 25 percent. The used antifoaming agent is a commercial product (Federal in Zheng State) and a polyether antifoaming agent special for concrete. The early strength agent is a mixture of sodium sulfate and triethanolamine, and the mass ratio of the sodium sulfate to the triethanolamine is 1: 0.01.
The coarse aggregate is graded limestone macadam; the fine aggregate is graded machine-made sand; the particle sizes of the used composite cement, metakaolin and slag are not more than 75 mu m; in the metakaolin, the mass content of the main component is SiO252％、Al2O342%; the slag is water quenched blast furnace slag, SiO2≥25％、Al2O3≥25％、CaO≥25％。
Example 1
The aqueous epoxy resin modified emulsified asphalt cold-patch material for rapid road repair of the embodiment consists of cementing materials and mineral aggregates; the cementing agent consists of the following components in parts by weight: 80 parts of cationic emulsified asphalt, 20 parts of water-based epoxy resin emulsion, 5 parts of amine curing agent, 20 parts of water glass and 1.0 part of assistant; the auxiliary agent consists of a water reducing agent, a defoaming agent and an early strength agent, and the mass ratio of the water reducing agent to the defoaming agent to the early strength agent is 0.24:0.01: 0.75;
the mineral aggregate comprises the following components in parts by weight: 50 parts of coarse aggregate with the particle size of more than 2.36mm, 42 parts of fine aggregate with the particle size of 2.36-0.075mm, 5.0 parts of composite cement, 2.4 parts of metakaolin and 0.6 part of slag; the composite cement comprises the following components in percentage by mass: 70% of sulphoaluminate cement and 30% of P.O42.5 ordinary Portland cement; wherein the mineral aggregate gradation is as shown in the following table 1:
TABLE 1 mineral aggregate gradation (mass percent/%, passing through mesh opening mm)
The mass ratio of the cementing material to the mineral material is 9: 100.
The ratio of the water contained in the cationic emulsified asphalt, the water-based epoxy resin emulsion and the water glass to the total mass of the composite cement, the metakaolin and the slag (water-cement ratio) in the cold-patch material is 0.45 by calculation; the ratio of the total mass of the water glass to the metakaolin and the slag (laser-solid ratio) is 0.50, and the design requirement is met.
The preparation method of the waterborne epoxy resin modified emulsified asphalt cold-patch material for rapid road repair comprises the following steps:
1) uniformly mixing the coarse aggregate and the fine aggregate according to the proportion, then adding the composite cement, the metakaolin and the slag according to the formula amount, and stirring and mixing to obtain mineral aggregate;
2) uniformly mixing the aqueous epoxy resin emulsion and the amine curing agent according to the formula amount, adding the cationic emulsified asphalt and the auxiliary agent according to the formula amount, and stirring and mixing to obtain mucilage; mixing the obtained cement with water glass according to the formula amount, and uniformly stirring to obtain a cementing material;
3) mixing the cementing material obtained in the step 2 with the mineral aggregate obtained in the step 1) in proportion to obtain the cement.
With reference to the specification of JTG E30-2005, test pieces were prepared by using the cold feed material obtained in example 1 and cured under standard conditions, and mechanical properties were measured; meanwhile, in order to detect the bonding strength between the obtained cold-patch material and an old pavement (asphalt pavement), a test piece is prepared by pouring the cold-patch material obtained in the example 1 on the surface of an asphalt concrete sample, and the test piece is maintained for 28 days under standard conditions to test the drawing strength of the test piece. The results are shown in Table 2.
Table 2 results of measuring mechanical properties of cold-patch materials obtained in example 1
Example 2
The aqueous epoxy resin modified emulsified asphalt cold-patch material for rapid road repair of the embodiment consists of cementing materials and mineral aggregates; the cementing agent consists of the following components in parts by weight: 82 parts of cationic emulsified asphalt, 18 parts of waterborne epoxy resin emulsion, 4.5 parts of amine curing agent, 21 parts of water glass and 1.0 part of auxiliary agent; the auxiliary agent consists of a water reducing agent, a defoaming agent and an early strength agent, and the mass ratio of the water reducing agent to the defoaming agent to the early strength agent is 0.24:0.01: 0.75;
the mineral aggregate comprises the following components in parts by weight: 50 parts of coarse aggregate with the particle size of more than 2.36mm, 42 parts of fine aggregate with the particle size of 2.36-0.075mm, 4.8 parts of composite cement, 2.5 parts of metakaolin and 0.7 part of slag; the composite cement comprises the following components in percentage by mass: 73% of sulphoaluminate cement and 27% of P.O42.5 ordinary Portland cement; wherein the mineral aggregate gradation is as shown in table 1 above;
the mass ratio of the cementing material to the mineral material is 9.5: 100.
The ratio of the water contained in the cationic emulsified asphalt, the water-based epoxy resin emulsion and the water glass to the total mass of the composite cement, the metakaolin and the slag (water-cement ratio) in the cold-patch material is 0.45 by calculation; the ratio of the total mass of the water glass to the metakaolin and the slag (laser-solid ratio) is 0.49, and the design requirement is met.
The preparation method of the aqueous epoxy resin modified emulsified asphalt cold-patch material for rapid road repair is the same as that in example 1.
3) Mixing the cementing material obtained in the step 2 with the mineral aggregate obtained in the step 1) in proportion to obtain the cement.
With reference to the specification of JTG E30-2005, test pieces were prepared by using the cold-patch materials obtained in example 2 and cured under standard conditions, and mechanical properties were measured; meanwhile, in order to detect the bonding strength between the obtained cold-patch material and an old pavement (asphalt pavement), a test piece is prepared by pouring the cold-patch material obtained in the example 2 on the surface of an asphalt concrete sample, and the test piece is maintained under standard conditions to test the drawing strength of the test piece. The results are shown in Table 3.
Table 3 results of measuring mechanical properties of cold-patch materials obtained in example 2
| Age of age | 3h | 10h | 1d | 3d | 7d | 28d |
| Compressive strength, MPa | 11.0 | 12.1 | 15.2 | 16.5 | 18.1 | 21.0 |
| Flexural strength, MPa | 5.4 | 6.0 | 6.6 | 8.0 | 9.3 | 10.7 |
| Tensile Strength, MPa | 2.6 | 3.3 | 4.0 | 4.5 | 4.8 | 5.2 |
Example 3
The aqueous epoxy resin modified emulsified asphalt cold-patch material for rapid road repair of the embodiment consists of cementing materials and mineral aggregates; the cementing agent consists of the following components in parts by weight: 84 parts of cationic emulsified asphalt, 16 parts of waterborne epoxy resin emulsion, 4 parts of amine curing agent, 22 parts of water glass and 1.0 part of auxiliary agent; the auxiliary agent consists of a water reducing agent, a defoaming agent and an early strength agent, and the mass ratio of the water reducing agent to the defoaming agent to the early strength agent is 0.24:0.01: 0.75;
the mineral aggregate comprises the following components in parts by weight: 50 parts of coarse aggregate with the particle size of more than 2.36mm, 42 parts of fine aggregate with the particle size of 2.36-0.075mm, 4.5 parts of composite cement, 2.8 parts of metakaolin and 0.7 part of slag; the composite cement comprises the following components in percentage by mass: 75% of sulphoaluminate cement and 30% of P.O42.5 ordinary Portland cement; wherein the mineral aggregate gradation is as shown in table 1 above;
the mass ratio of the cementing material to the mineral material is 10: 100.
The ratio of the water contained in the cationic emulsified asphalt, the water-based epoxy resin emulsion and the water glass to the total mass of the composite cement, the metakaolin and the slag (water-cement ratio) in the cold-patch material is 0.47; the ratio of the total mass of the water glass to the metakaolin and the slag (laser-solid ratio) is 0.49, and the design requirement is met.
The preparation method of the aqueous epoxy resin modified emulsified asphalt cold-patch material for rapid road repair is the same as that in example 1.
3) Mixing the cementing material obtained in the step 2 with the mineral aggregate obtained in the step 1) in proportion to obtain the cement.
With reference to the specification of JTG E30-2005, test pieces were prepared by using the cold-patch materials obtained in example 3 and cured under standard conditions, and mechanical properties were measured; meanwhile, in order to detect the bonding strength between the obtained cold-patch material and an old pavement (asphalt pavement), a test piece is prepared by pouring the cold-patch material obtained in the example 3 on the surface of an asphalt concrete sample, and the test piece is maintained for 28 days under standard conditions to test the drawing strength of the test piece. The results are shown in Table 4.
Table 4 results of measuring mechanical properties of cold-patch materials obtained in example 3
| Age of age | 3h | 10h | 1d | 3d | 7d | 28d |
| Compressive strength, MPa | 10.4 | 11.7 | 14.6 | 15.9 | 18.0 | 20.7 |
| Flexural strength, MPa | 5.2 | 5.8 | 6.3 | 7.7 | 8.9 | 10.5 |
| Tensile Strength, MPa | 2.3 | 3.1 | 3.9 | 4.3 | 4.7 | 5.1 |
As can be seen from tables 2-4, the cold-patch materials obtained in examples 1-3 have compressive strength of 10.4MPa or more and flexural strength of 5.2MPa or more after curing for 3 hours, and have the characteristics of high early strength after 1 day, the compressive strength is increased to 14.2MPa or more and the flexural strength is increased to 6.3MPa or more; after curing for 3d, 7d and 28d, the compressive strength is gradually increased to more than 15.8MPa, 17.5MPa and 20.0MPa, the flexural strength is gradually increased to more than 7.7MPa, 8.9MPa and 10.4MPa, and the later strength is quickly formed. The bonding strength between the cold-patch material obtained in the examples 1 to 3 and the asphalt concrete is represented by the drawing strength, after curing for 3 hours, the drawing strength reaches more than 2.3MPa, and after curing for 28 days, the drawing strength develops to more than 5.0MPa, and the bonding strength is high. The detection result shows that the water-based epoxy resin modified emulsified asphalt cold patching material for quickly repairing the road, which is obtained by the invention, has high early strength, quick formation of later strength and firm combination with the old pavement (asphalt concrete); the asphalt pavement repair agent is used for rapid repair of asphalt pavements, can be constructed at room temperature and low temperature, can rapidly open traffic, has good pavement performance, and can be used for road maintenance engineering construction such as pre-maintenance, local repair, post-maintenance and the like of asphalt pavements.
Claims (7)
1. The water-based epoxy resin modified emulsified asphalt cold-patch material for rapid road repair is characterized by comprising the following components in parts by weight: the cement comprises a cementing material and a mineral material, wherein the cementing material comprises the following components in parts by weight: 80-84 parts of cationic emulsified asphalt, 16-20 parts of waterborne epoxy resin emulsion, 4-5 parts of amine curing agent, 20-22 parts of water glass and 0.5-2.0 parts of auxiliary agent;
the mineral aggregate comprises the following components in parts by weight: 50-52 parts of coarse aggregate with the particle size of 2.36mm, 40-42 parts of fine aggregate with the particle size of 2.36-0.075mm, 4.5-5.0 parts of composite cement, 2.4-2.8 parts of metakaolin and 0.6-0.7 part of slag;
the mass ratio of the cementing material to the mineral material is 9-10: 100.
2. The waterborne epoxy resin modified emulsified asphalt cold-patch material for rapid road repair as claimed in claim 1, which is characterized in that: the solid content of the cationic emulsified asphalt is not lower than 55 percent; the solid content of the waterborne epoxy resin emulsion is not lower than 45%.
3. The waterborne epoxy resin modified emulsified asphalt cold-patch material for rapid road repair as claimed in claim 1, which is characterized in that: the modulus of the water glass is 1.4-1.6, and the water content is not higher than 55%.
4. The waterborne epoxy resin modified emulsified asphalt cold-patch material for rapid road repair as claimed in claim 1, which is characterized in that: the auxiliary agent is any one or combination of a water reducing agent, a defoaming agent, an early strength agent, a coagulation accelerator and a retarder.
5. The waterborne epoxy resin modified emulsified asphalt cold-patch material for rapid road repair as claimed in claim 1, which is characterized in that: the composite cement comprises the following components in percentage by mass: 70-75% of sulphoaluminate cement and 25-30% of ordinary portland cement.
6. The waterborne epoxy resin modified emulsified asphalt cold-patch material for rapid road repair as claimed in claim 1, which is characterized in that: the water-cement ratio of the cold-feeding material is not more than 0.50; the water in the water-cement ratio contains water contained in the cationic emulsified asphalt, the water-based epoxy resin emulsion and the water glass; the ash in the water-cement ratio is the sum of the composite cement, the metakaolin and the slag.
7. The preparation method of the waterborne epoxy resin modified emulsified asphalt cold patching material for rapid road repair as claimed in any one of claims 1 to 6, which is characterized in that: the method comprises the following steps:
1) uniformly mixing the coarse aggregate and the fine aggregate according to the proportion, adding the composite cement, the metakaolin and the slag according to the formula amount, and stirring and mixing to obtain mineral aggregate;
2) uniformly mixing the aqueous epoxy resin emulsion and the amine curing agent according to the formula amount, adding the cationic emulsified asphalt and the auxiliary agent according to the formula amount, and stirring and mixing to obtain mucilage; mixing the obtained cement with water glass according to the formula amount, and uniformly stirring to obtain a cementing material;
3) mixing the cementing material obtained in the step 2) and the mineral aggregate obtained in the step 1) in proportion to obtain the cement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010527294.9A CN111606605A (en) | 2020-06-11 | 2020-06-11 | Water-based epoxy resin modified emulsified asphalt cold-patch material for rapid road repair and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010527294.9A CN111606605A (en) | 2020-06-11 | 2020-06-11 | Water-based epoxy resin modified emulsified asphalt cold-patch material for rapid road repair and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111606605A true CN111606605A (en) | 2020-09-01 |
Family
ID=72194163
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010527294.9A Withdrawn CN111606605A (en) | 2020-06-11 | 2020-06-11 | Water-based epoxy resin modified emulsified asphalt cold-patch material for rapid road repair and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111606605A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112301821A (en) * | 2020-10-26 | 2021-02-02 | 长春市城建维护集团股份有限公司 | Geopolymer stabilized base layer and construction process thereof |
| CN112961680A (en) * | 2021-02-07 | 2021-06-15 | 杭州圣立新材料有限公司 | Freeze-thaw-resistant soil stabilizer and preparation method thereof |
| CN113860799A (en) * | 2021-10-14 | 2021-12-31 | 东南大学 | Curing cold-patch material suitable for low-temperature humid environment and preparation method thereof |
| CN114716226A (en) * | 2022-04-15 | 2022-07-08 | 中国地质大学（武汉） | All-solid-waste cold-mixing recycled asphalt mixture and preparation method and application thereof |
| TWI805436B (en) * | 2022-07-06 | 2023-06-11 | 湯博宇 | Cold-mixed cold-paved asphalt mixed pavement and manufacturing method thereof |
| CN116903338A (en) * | 2023-06-15 | 2023-10-20 | 烟台大学 | Composite rapid maintenance material for asphalt pavement, and preparation method and application thereof |
| WO2024187344A1 (en) * | 2023-03-13 | 2024-09-19 | 汤博宇 | Cold-mixing cold-paving new aggregate paving material, and manufacturing method therefor |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007023833A1 (en) * | 2005-08-24 | 2007-03-01 | Petro Chemicals Co., Ltd. | Paving material and method for construction of paved body using the same |
| CN103951323A (en) * | 2014-04-17 | 2014-07-30 | 交通运输部公路科学研究所 | Reinforced emulsified asphalt concrete for roads and preparation method of concrete |
| CN105645850A (en) * | 2016-01-11 | 2016-06-08 | 北京建筑大学 | Pavement quick-repair asphalt mixture, and preparation method and application method thereof |
| CN106316221A (en) * | 2016-08-22 | 2017-01-11 | 苏交科集团股份有限公司 | Rubber cold-mixed epoxy asphalt mixture used for repairing cracks and preparation method |
| CN106810153A (en) * | 2016-12-31 | 2017-06-09 | 山西省交通科学研究院 | It is a kind of can quick bituminous pavement cold patch material of open to traffic and preparation method thereof |
| CN108558274A (en) * | 2018-05-30 | 2018-09-21 | 河南省大道路业有限公司 | The preparation method of road surface aqueous epoxy resins emulsified bitulith |
-
2020
- 2020-06-11 CN CN202010527294.9A patent/CN111606605A/en not_active Withdrawn
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007023833A1 (en) * | 2005-08-24 | 2007-03-01 | Petro Chemicals Co., Ltd. | Paving material and method for construction of paved body using the same |
| CN103951323A (en) * | 2014-04-17 | 2014-07-30 | 交通运输部公路科学研究所 | Reinforced emulsified asphalt concrete for roads and preparation method of concrete |
| CN105645850A (en) * | 2016-01-11 | 2016-06-08 | 北京建筑大学 | Pavement quick-repair asphalt mixture, and preparation method and application method thereof |
| CN106316221A (en) * | 2016-08-22 | 2017-01-11 | 苏交科集团股份有限公司 | Rubber cold-mixed epoxy asphalt mixture used for repairing cracks and preparation method |
| CN106810153A (en) * | 2016-12-31 | 2017-06-09 | 山西省交通科学研究院 | It is a kind of can quick bituminous pavement cold patch material of open to traffic and preparation method thereof |
| CN108558274A (en) * | 2018-05-30 | 2018-09-21 | 河南省大道路业有限公司 | The preparation method of road surface aqueous epoxy resins emulsified bitulith |
Non-Patent Citations (5)
| Title |
|---|
| 刘炳义: "《中国石油化工商品手册》", 31 March 2000, 中国石化出版社 * |
| 杨帆等: ""水性环氧乳化沥青混凝土路面冷补材料制备及性能研究"", 《公路》 * |
| 胡曙光等: ""水泥-沥青-环氧树脂复合胶结道路快速修补材料研究"", 《混凝土》 * |
| 邓德华: "《土木工程材料》", 31 August 2017, 中国铁道出版社 * |
| 陈益民: "《高性能水泥基础研究》", 30 November 2004, 中国纺织出版社 * |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112301821A (en) * | 2020-10-26 | 2021-02-02 | 长春市城建维护集团股份有限公司 | Geopolymer stabilized base layer and construction process thereof |
| CN112961680A (en) * | 2021-02-07 | 2021-06-15 | 杭州圣立新材料有限公司 | Freeze-thaw-resistant soil stabilizer and preparation method thereof |
| CN113860799A (en) * | 2021-10-14 | 2021-12-31 | 东南大学 | Curing cold-patch material suitable for low-temperature humid environment and preparation method thereof |
| CN114716226A (en) * | 2022-04-15 | 2022-07-08 | 中国地质大学（武汉） | All-solid-waste cold-mixing recycled asphalt mixture and preparation method and application thereof |
| TWI805436B (en) * | 2022-07-06 | 2023-06-11 | 湯博宇 | Cold-mixed cold-paved asphalt mixed pavement and manufacturing method thereof |
| WO2024187344A1 (en) * | 2023-03-13 | 2024-09-19 | 汤博宇 | Cold-mixing cold-paving new aggregate paving material, and manufacturing method therefor |
| CN116903338A (en) * | 2023-06-15 | 2023-10-20 | 烟台大学 | Composite rapid maintenance material for asphalt pavement, and preparation method and application thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111606605A (en) | Water-based epoxy resin modified emulsified asphalt cold-patch material for rapid road repair and preparation method thereof | |
| CN104478371B (en) | A kind of energy-saving concrete crack repairing agent | |
| CN105884253B (en) | The polymer mortar of Rapid-Repair and application | |
| CN102659369B (en) | Epoxy emulsion modified quick repair mortar for concrete roads and bridges and preparation method for mortar | |
| CN107879702B (en) | Cement-based grouting material for early-strength semi-flexible pavement | |
| CN105294049A (en) | Special cement-base patching material and cement concrete pavement quick repairing method | |
| CN108002787A (en) | High-speed railway concrete defect fast repairing material and preparation method thereof | |
| CN108424087B (en) | Geopolymer-based cement pavement crack rapid repairing material and preparation method and application thereof | |
| CN113698170B (en) | High-performance pervious concrete rapid repairing material and preparation method and application thereof | |
| CN111574164A (en) | Rapid repairing material for super-early-strength shrinkage compensation road bridge and preparation method thereof | |
| CN109626901B (en) | Preparation method of high-toughness cement concrete | |
| CN109626920A (en) | A kind of concrete road surface material for quickly repairing and preparation method with high intensity and endurance quality | |
| CN110467394B (en) | Cement grouting material and preparation method and application thereof | |
| CN106220105A (en) | A kind of concrete is quickly repaired with polymer cement mortar and preparation method thereof | |
| CN110627473A (en) | Phosphorus-silicon-magnesium-based special rapid-hardening material and preparation method thereof | |
| CN107721330B (en) | Durable cement concrete pavement slab bottom grouting material and preparation method thereof | |
| CN113860806A (en) | Semi-flexible asphalt pavement material filled with fly ash-based polymer and preparation method thereof | |
| CN111848066A (en) | Rapid road repairing mortar and construction process thereof | |
| CN111362646B (en) | Low-elastic-modulus flexible ultrahigh-toughness mortar concrete system and preparation method thereof | |
| CN115180900B (en) | Ultrahigh-performance premixed pervious concrete and preparation method thereof | |
| CN113121191B (en) | Rapid repairing adhesive and preparation method and application method thereof | |
| CN113651590B (en) | Building leakage-stopping composite material and using method thereof | |
| CN114702288A (en) | Low-shrinkage engineering repair material and preparation method thereof | |
| CN113845332A (en) | Preparation method of polyurethane concrete and rapid repair method of polyurethane concrete for airport pavement | |
| CN113880497A (en) | Polyurethane cementing material for airport pavement and polyurethane concrete for repairing airport pavement |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20200901 |