CN110698986A - Snow-melting and deicing emulsion coating and construction method thereof - Google Patents

Snow-melting and deicing emulsion coating and construction method thereof Download PDF

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CN110698986A
CN110698986A CN201910894012.6A CN201910894012A CN110698986A CN 110698986 A CN110698986 A CN 110698986A CN 201910894012 A CN201910894012 A CN 201910894012A CN 110698986 A CN110698986 A CN 110698986A
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emulsion
coating
water
snow
melting
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杜宏伟
李荣清
仇新成
张恺
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JIANGSU TRAFFIC RESEARCH INSTITUTE
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JIANGSU TRAFFIC RESEARCH INSTITUTE
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    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D201/00—Coating compositions based on unspecified macromolecular compounds
    • C09D201/02—Coating compositions based on unspecified macromolecular compounds characterised by the presence of specified groups, e.g. terminal or pendant functional groups
    • C09D201/04—Coating compositions based on unspecified macromolecular compounds characterised by the presence of specified groups, e.g. terminal or pendant functional groups containing halogen atoms
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
    • C09D7/40—Additives
    • C09D7/60—Additives non-macromolecular
    • C09D7/61—Additives non-macromolecular inorganic
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
    • C09D7/40—Additives
    • C09D7/60—Additives non-macromolecular
    • C09D7/63—Additives non-macromolecular organic
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K3/00—Materials not provided for elsewhere
    • C09K3/18—Materials not provided for elsewhere for application to surfaces to minimize adherence of ice, mist or water thereto; Thawing or antifreeze materials for application to surfaces
    • C09K3/185—Thawing materials
    • 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
    • E01C7/00—Coherent pavings made in situ
    • E01C7/08—Coherent pavings made in situ made of road-metal and binders
    • E01C7/35—Toppings or surface dressings; Methods of mixing, impregnating, or spreading them
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
    • C08K3/24—Acids; Salts thereof
    • C08K3/26—Carbonates; Bicarbonates
    • C08K2003/262—Alkali metal carbonates

Abstract

The invention discloses a snow-melting and deicing emulsion coating and a construction method thereof, the snow-melting and deicing emulsion coating comprises 80-90% of water-based adhesive, 5-10% of water-based adhesive, 1-3% of pH regulator, 2-4% of surfactant and 2-3% of synergist, the emulsion coating is firstly diluted by water, and then is mechanically sprayed, the spraying amount is 0.75-1.25 kg/m2The method specifically comprises the following steps: after a certain strength is formed on the pavement, mechanically spraying the surface of the pavement; before the solidification of the resin seal emulsion, uniformly spreading the excessively sprayed area by using a brush, after the solidification of the resin seal emulsion, checking the coverage degree of the surface emulsion, and timely repairing the non-sprayed area; and opening the traffic after the frozen sealing resin emulsion is completely solidified into a transparent state.

Description

Snow-melting and deicing emulsion coating and construction method thereof
Technical Field
The invention relates to the technical field of snow melting and deicing, in particular to a snow melting and deicing emulsion coating and a construction method thereof.
Background
According to data, the ice on the road surface in winter is shown to become a great hidden danger of road traffic safety. Road ice is a layer of ice that is produced on low temperature roads as a result of "freezing rain" condensation. The disaster caused by ice condensation is different from the common road snow disaster, the snow disaster mostly occurs in the northern cold area, and ice melting can not be left on the snow accumulation road surface due to lower air temperature and air humidity. After the accumulated snow is compacted by the running of the automobile, the friction force of the accumulated snow is far higher than that of the ice in a surface wet state, and the automobile can still run safely on the snow surface even on an uphill road section after a tire of the automobile is additionally provided with an anti-skid chain. The freezing disaster mostly occurs in cold and humid winter in south, road condensation usually occurs in a temperature range with air temperature slightly lower than 0 ℃, the surface of the road ice is in a wet state, and a water film on the ice greatly reduces the friction force of the road surface, thereby seriously threatening the controllability and the driving safety of motor vehicles.
The ice and snow greatly reduces the road adhesion coefficient, and can cause the automobile to skid, the braking distance to be lengthened, even the braking is out of order, and the direction is out of control, thereby causing serious traffic safety hidden trouble. Therefore, in order to guarantee the life and property safety of people and provide a safe traffic driving environment, the research on the technology of removing ice and snow on the road surface in winter is necessary. Today, the results are very good after long-term efforts of road workers at home and abroad. However, the traditional road ice and snow removing methods at home and abroad have the defects of high labor intensity, low ice and snow removing efficiency, serious environmental pollution and the like at different degrees. Therefore, aiming at the defects of the traditional ice and snow removing method, the active ice and snow removing technology with high efficiency and environmental protection becomes the key point of domestic and overseas research.
The ice and snow melting coating can effectively reduce the freezing point of water by depending on ice and snow melting substances contained in the ice and snow melting coating. The substance can melt ice and snow at a lower temperature so as to be convenient for removing, when the freezing point of a solution formed by the snow melting substance and snow water is lower than the air temperature, the snow water can flow away automatically, and the residual liquid on the road surface is not easy to freeze and is very easy to remove.
The freezing point depression of water can be explained by the colligative property of dilute solutions. The values of the vapor pressure depression, freezing point depression, boiling point elevation and osmotic pressure of the solvent in the dilute solution are related only to the amount of solute in the solution, and are not related to the nature of the solute, and these properties are called the colligative property of the dilute solution. Dilute solutions have certain physical properties that vary from pure solvents, such as a decrease in vapor pressure (the vapor pressure of pure solvents increases with increasing temperature, as do dilute solutions, but the vapor pressure is always lower than that of pure solvents), a decrease in freezing point, an increase in boiling point, and the like.
The freezing point is the temperature at which equilibrium is established between the liquid and solid phases of a substance. When the freezing point is reached, the vapor pressures of the liquid phase and the solid phase must be equal, otherwise the two phases cannot coexist. The freezing point of pure water was 273.16K (0.0099 ℃ C.), at which time the vapor pressures of both water and ice were 610.6Pa (4.58mm Hg). The solution freezing point is the temperature at which solvent crystals begin to precipitate from solution. The system consists of a solution (liquid phase) solvent solid phase and a solvent gas phase. For aqueous solutions, the solvent solid phase is pure ice. Because of the reduced vapor pressure of the solution, the vapor pressure of ice is still 610.6Pa when 273.16K, but the vapor pressure of the solution is necessarily lower than 610.6Pa, thus, the solution and ice can not coexist, the vapor pressure of the solution can be equal to the vapor pressure of ice only under 273.15K, and the temperature is the freezing point of the solution, so the freezing point of the solution is always lower than that of a pure solvent, and the phenomenon is called freezing point depression. The greater the solution concentration, the more the vapor pressure drops and the more the freezing point drops. In the same solution, as the solvent is crystallized and separated out, the concentration of the solution is increased continuously, and the freezing point is also decreased continuously.
Disclosure of Invention
In order to solve the technical problems, the invention provides a snow-melting and deicing emulsion coating and a construction method thereof.
The invention adopts the following technical scheme: the snow-melting and deicing emulsion coating comprises 80-90% of a water-based adhesive, 5-10% of a water-based adhesive, 1-3% of a pH regulator, 2-4% of a surfactant and 2-3% of a synergist, wherein the thickness of the emulsion coating is not less than 10 mm.
Further, the adhesive comprises a water-based adhesive, a fluororesin emulsion, a pH regulator, a surfactant and a synergist, wherein the fluororesin emulsion accounts for 85%, the water-based adhesive accounts for 7%, the pH regulator accounts for 2%, the surfactant accounts for 34% and the synergist accounts for 2%.
Further, the thickness of the emulsion coating is 15 mm.
Furthermore, the water-based adhesive adopts a water-based acrylic polymer, and the synergist adopts one of sodium gluconate and sodium carbonate.
A construction method of a snow-melting and deicing emulsion coating comprises the steps of firstly diluting the emulsion coating with water, and then adopting a mechanical spraying mode, wherein the spraying amount is 0.75-1.25 kg/m2The method specifically comprises the following steps:
1) after a certain strength is formed on the pavement, mechanically spraying the surface of the pavement;
2) before the solidification of the resin seal emulsion, uniformly spreading the excessively sprayed area by using a brush, after the solidification of the resin seal emulsion, checking the coverage degree of the surface emulsion, and timely repairing the non-sprayed area;
3) and opening the traffic after the frozen sealing resin emulsion is completely solidified into a transparent state.
Compared with the prior art, the invention has the advantages that: 1) under the condition of-15 ℃, the ice and snow melting coating can effectively and continuously melt the ice layer and prevent the ice layer from adhering; the phenomena of road icing, secondary icing, freezing rain and the like in winter can be solved; the coating has strong adhesion after construction, is water-resistant and wear-resistant, and has little influence on the anti-skid performance of the pavement; 2) the environment-friendly asphalt pavement ice and snow melting coating has obvious economic benefit and social benefit due to the simple construction process, higher utilization rate and contribution to environmental protection.
Drawings
FIG. 1 is a schematic diagram of the deicing performance of the present invention (left: coated treated test piece; right: untreated test piece).
FIG. 2 is a graphical representation of the ice melting performance test results of the present invention.
FIG. 3 is a graph showing the results of the adhesion test of the present invention (a: before the test; b: after the test).
FIG. 4 is a graphical representation of the durability test results (at various loadings) for coatings of the present invention.
Detailed Description
The present invention is described in detail below so that the advantages and features of the present invention can be more easily understood by those skilled in the art, and thus the scope of the present invention can be clearly and clearly defined.
The snow-melting and deicing emulsion coating comprises 80-90% of a water-based adhesive, 5-10% of a water-based adhesive, 1-3% of a pH regulator, 2-4% of a surfactant and 2-3% of a synergist.
Further, the adhesive comprises a water-based adhesive, a fluororesin emulsion, a pH regulator, a surfactant and a synergist, wherein the fluororesin emulsion accounts for 85%, the water-based adhesive accounts for 7%, the pH regulator accounts for 2%, the surfactant accounts for 34% and the synergist accounts for 2%.
Further, the thickness of the emulsion coating is 15 mm.
Furthermore, the water-based adhesive adopts a water-based acrylic polymer, and the synergist adopts one of sodium gluconate and sodium carbonate.
A construction method of a snow-melting and deicing emulsion coating comprises the steps of firstly diluting the emulsion coating with water, and then adopting a mechanical spraying mode, wherein the spraying amount is 0.75-1.25 kg/m2The method specifically comprises the following steps:
1) after a certain strength is formed on the pavement, mechanically spraying the surface of the pavement;
2) before the solidification of the resin seal emulsion, uniformly spreading the excessively sprayed area by using a brush, after the solidification of the resin seal emulsion, checking the coverage degree of the surface emulsion, and timely repairing the non-sprayed area;
3) and opening the traffic after the frozen sealing resin emulsion is completely solidified into a transparent state.
Stability of seal material
The method for detecting the stability of the water-based bonding material mainly comprises a standing method and a centrifugal separation method, wherein the standing method is to stand the water-based bonding material for a period of time and observe whether unstable phenomena such as layering, precipitation and the like exist; the centrifugal separation method is to place the water-based binding material in a rotating centrifuge, rotate at a certain rotating speed and observe the stability of the material, and the stability of the emulsion of the icing-inhibiting seal layer is good by combining two test methods.
Slip resistance of seal material
The skid resistance of the coating is an important factor of the durability of the coating, the skid resistance of the surface is the inherent surface characteristics of the pavement and comprises surface microstructure and macrostructure, wherein the microstructure refers to the roughness of the aggregate surface, and the macrostructure refers to the structural depth of the whole pavement. According to the on-site test regulations of the road base surface, the difference of the anti-skid performance of the surface of the road is analyzed by measuring the friction coefficient of the road surface through a pendulum instrument;
before performing the pendulum measurement, it should be noted that the slide length is calibrated, i.e. the distance between the contact points of the pendulum and the left and right sides of the test piece when the pendulum is in a natural sagging state, should comply with the 126mm specification. And (3) respectively carrying out anti-slip performance tests on the left side and the right side of the test piece, taking the average value of 5 times of measurement as the road surface anti-slip value (namely the swing value BPNt) of a single point in each measurement, and taking an integer. And the temperature of the anti-slip value is corrected according to the following formula, namely
BPN20＝BPNt+ Δ BPN (4.1) formula, BPN20Converted into a pendulum value at the standard temperature of 20 ℃; BPNtThe measured swing value is the road surface temperature t; Δ BPN is used as a temperature correction value in table 4.1.
TABLE 4.1 temperature correction values
Figure BDA0002209659000000051
TABLE 4.2 test piece skid resistance values
Figure BDA0002209659000000052
The test piece of the coating is basically not exposed after the test, and the anti-skid performance of the coating is excellent according to the anti-skid test result.
4.3 road Performance of icing inhibiting seal Material
4.3.1 Ice and snow removing Properties
The influence of road icing in winter on traffic is obvious. The frozen pavement fills the structural depth of the pavement, so that the friction coefficient of the pavement is reduced sharply, and the anti-skid performance of the pavement is seriously influenced. According to statistics, 10-15% of road traffic accidents are related to road icing, and the road icing also often causes the pedestrians to slip or fall down, so that personal safety is not facilitated. In order to verify the effect of the coating on removing ice from the pavement, we designed the following test method:
(1) and forming the test piece for later use according to the method for forming the test piece in the anti-slip test.
(2) And coating the coating on the surface of the sliced test piece. The coating amount of the coating is based on the principle that the surface of a sliced test piece is easily and uniformly and completely covered, and the spraying amount during actual construction is considered. After a plurality of times of test adjustment, the coating amount of the coating on the surface of the test piece is finally determined to be 0.6kg/m2(the following tests all refer to this amount of brushing).
(3) And (3) after the coating is dried, putting the sliced test piece into quantitative water, and taking the blank test piece as a reference object. The test pieces were then placed in a cryostat at-15 ℃ with water to simulate the winter climate. The amount of water in the water tank was 265mL (hereinafter, the amount of water used was used in all tests), which corresponds to an amount of rain of about 15mm (moderate rain) rainfall in one area.
(4) And taking out the sliced test piece after 3h, using a 500g weight to freely fall at a position 50cm away from the test piece, simulating the impact effect of an automobile tire on the road surface, and observing the cracking condition of an ice layer and the bonding condition of an ice block and a coating.
In addition, the deicing principle of the coating is different from that of the conventional manual deicing, mechanical deicing and snow melting agent deicing, so that the ice layer is separated from the road surface mainly through blocking the adhesion between the ice layer and the road surface, and then the ice layer is crushed under the action of the driving load, thereby achieving the deicing effect. Therefore, after the weight knocks the ice layer, whether the ice layer is easy to crack and break and the degree of falling off from the test piece are used as evaluation criteria of the deicing performance of the coating.
As can be seen from FIG. 1, the ice layer on the surface of the sliced specimen with the coating can completely absorb the impact force and be loosened and broken after being knocked by the weight, and the ice layer is basically separated from the surface of the specimen. The ice layer on the surface of the blank test piece is transparent and is tightly bonded with the test piece, and the ice layer is dense and cannot be removed. The test result shows that the coating can effectively prevent the adhesion between the ice layer and the test piece at the temperature of-15 ℃, so that the ice layer is separated from the test piece, and the ice layer can completely absorb impact force and be broken. The coating has good deicing performance.
4.3.2 Ice melting Performance
The root cause of the ice and snow melting coating for deicing and preventing the adhesion of the ice layer is that the coating melts the lower surface of the ice layer and enables the ice layer to be separated from the surface of the test piece. In order to research the melting effect of the coating on the ice layer, a test method is designed to quantitatively describe the ice melting capacity of the ice-melting ice-snow coating:
(1) firstly, weighing a certain mass of water, pouring the water into a disposable paper cup, and placing the paper cup in a low-temperature incubator at minus 25 ℃ to ensure that the water in the cup is completely frozen into ice.
(2) Coating the coating on the surface of a Marshall slice test piece, and after the coating is dried, freezing the test piece for 3 hours at-20 ℃ to ensure that the temperature of the whole test piece reaches-20 ℃.
(3) And taking out the ice block, placing the ice block on the coating on the surface of the test piece, and placing the ice block and the test piece in a cryostat together. The temperature is raised by 2 ℃ every hour, and the mass of the ice blocks is measured before the temperature is raised. A blank specimen is used as a reference object.
Furthermore, because the amount of water evaporated is small, it is negligible. The ice melting capacity of the ice melting snow coating is reflected by measuring the reduction amount of the ice block mass.
The detection result of the ice melting effect of the coating is shown in fig. 2.
As can be seen from fig. 2: (1) below 0 ℃, the ice mass on the surface of the blank test piece is almost unchanged, while the ice mass on the surface of the coated test piece is gradually reduced, which indicates that the coating is melting the ice layer in contact with the coating, so that the ice mass is reduced. (2) When the temperature is above 0 ℃, the mass of the ice layer on the surface of the blank test piece and the mass of the ice layer on the surface of the coating test piece are reduced, and the reduction rate is similar, which indicates that the temperature above 0 ℃ is a main factor for melting ice blocks. Test results show that the environment-friendly ice and snow melting coating has obvious ice melting effect.
4.3.3 adhesive Properties
In order to verify the adhesion effect between the ice-snow melting coating and the road surface and detect whether the coating is peeled off on the road surface, the adhesion between the coating material and aggregate is detected. According to the test method in road engineering asphalt and asphalt mixture test Specification JTGE-202011 (T0616-1993, T0654-2011), the following method for detecting the adhesion of the coating and the aggregate is established according to actual conditions. Ordinary emulsified asphalt was used as a reference in the test for accurately reflecting the adhesion property of the ice-melt snow coating to the coarse aggregate. In actual construction, medium-acid hard rock aggregate is mostly adopted for improving the anti-sliding performance of the upper layer of the asphalt pavement, and acid granite coarse aggregate with lighter color is adopted in the test.
The test method is as follows:
(1) washing the coarse aggregate with water, and drying for later use; preparing a coating mixed solution according to a coating preparation method for later use;
(2) soaking coarse aggregate (19mm-31.5mm) tied with iron wires in water for 1min, taking out, immediately soaking in a coating solution mixed solution for 1min (simulating the coating of a coating on pavement aggregate in the actual construction process); taking out the sample and hanging for 60min at room temperature (so that the ice-snow melting coating emulsion is completely solidified on the surface of the coarse aggregate);
(3) and (3) after the sample is dried, performing swinging washing in normal-temperature water for 3min, wherein the swinging washing process is to lift the iron wire tail to enable the coarse aggregate to move up and down to wash the coating film, the moving speed is 30 times/min, and the up-and-down moving distance is about 50 mm.
(4) Moving up and down for 3min, sticking out the coating film floating on the water surface by using a paper sheet, then taking the coarse aggregate particles out of the water surface, observing the area of the asphalt film coated on the surface of the coarse aggregate, taking a picture and recording the test result.
In addition, the area of the ice and snow melting coating wrapped on the surface of the coarse aggregate after water washing is observed. The coating was considered to have better adhesion when the coated area was not less than 2/3 of the total surface area of the coarse aggregate. The test results in fig. 3 show that the ice-snow melting coating has good adhesion to the aggregate.
4.3.4 durability performance
After the coating emulsion is sprayed on the road surface, the loss of the deicing agent on the surface of the coating can be caused by the actions of rain wash, wheel friction and the like, so that the performance of removing ice and snow of the coating is reduced. Therefore, the coating still has certain ice and snow removing capability under the actions of rain wash, wheel friction and the like, and is the performance which the coating needs to have, namely the coating needs to have certain durability.
The subsection simulates the washing of rainwater to the coating through a circulating soaking test, and simulates the friction, scraping and other effects of wheels to the coating through the friction of the brush to the coating. Preparing four clean large beakers with the capacity of 1000ml, adding 300ml of water into each beaker, measuring the water temperature to be 29.8 ℃, adjusting a temperature compensation knob on a conductivity meter to the corresponding temperature, rubbing the culture dish by using a brush, then putting the culture dish into the beakers for soaking for 10min, then taking out the culture dish, stirring by using a glass rod, measuring and recording the conductivity value of the solution, finally dropping the solution into the beakers, and washing the solution by using clear water to finish the first soaking, wherein the volume of the solution is as shown in figure 4; the second soaking to the seventh soaking are carried out according to the method, and the test results are shown in the figure.
As can be seen from FIG. 4, the conductivity values of the coatings gradually decreased with the increase of the number of cycles, the conductivity values of the coatings reached the maximum at the first cycle, the conductivity values of the coatings were all sharply decreased to about 0.3ms/cm at the second cycle, and the conductivity changes gradually and gradually approaches the value of the control group after the second cycle. It is also evident from the figure that the rate of conductivity decrease from the first cycle to the second cycle is related to the proportion of the doping, the higher the proportion of the doping, the greater the rate of conductivity decrease; it shows that the ice and snow removing performance of the coating is remarkably reduced after the first soaking cycle, and the ice and snow removing performance of the coating at the initial stage is reflected to be the best from the side.
Without being limited thereto, any changes or substitutions that are not thought of through the inventive work should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope defined by the claims.

Claims (5)

1. The snow-melting and deicing emulsion coating is characterized by comprising 80-90% of a water-based adhesive, 5-10% of a water-based adhesive, 1-3% of a pH regulator, 2-4% of a surfactant and 2-3% of a synergist, wherein the thickness of the emulsion coating is not less than 10 mm.
2. The snow-melting and deicing emulsion coating as claimed in claim 1, comprising a water-based adhesive, a fluororesin emulsion, a pH regulator, a surfactant and a synergist, wherein the fluororesin emulsion comprises 85% of the component, the water-based adhesive comprises 7% of the component, the pH regulator comprises 2% of the component, the surfactant comprises 34% of the component and the synergist comprises 2% of the component.
3. Snow-melting and deicing emulsion coating according to claim 1, characterized in that the thickness of said emulsion coating is 15 mm.
4. The snow-melting and deicing emulsion coating of claim 1, wherein the water-based adhesive is an aqueous acrylic polymer, and the synergist is one of sodium gluconate and sodium carbonate.
5. The snow-melting and deicing emulsion coating construction method is characterized by firstlyDiluting the emulsion coating with water, and spraying with a mechanical sprayer in an amount of 0.75-1.25 kg/m2The method specifically comprises the following steps:
1) after a certain strength is formed on the pavement, mechanically spraying the surface of the pavement;
2) before the solidification of the resin seal emulsion, uniformly spreading the excessively sprayed area by using a brush, after the solidification of the resin seal emulsion, checking the coverage degree of the surface emulsion, and timely repairing the non-sprayed area;
3) and opening the traffic after the frozen sealing resin emulsion is completely solidified into a transparent state.
CN201910894012.6A 2019-09-20 2019-09-20 Snow-melting and deicing emulsion coating and construction method thereof Pending CN110698986A (en)

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