CN110746934A - Road surface anti-skid self-snow-melting deicing material and preparation method thereof - Google Patents
Road surface anti-skid self-snow-melting deicing material and preparation method thereof Download PDFInfo
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- 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
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
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Abstract
The invention provides a road surface anti-skid self-snow-melting deicing material which comprises the following components in parts by weight: 100 parts of straw ash, 20-40 parts of fly ash, 40-80 parts of oil shale ash, 150-250 parts of oil shale semicoke, 200-300 parts of construction waste recycled aggregate and 100-160 parts of water glass; the raw materials are prepared by weighing, mixing, stirring, pressing and forming and normal-temperature curing. The straw ash is fine ash discharged by a biomass power plant; the oil shale ash is fine ash discharged by oil shale combustion power generation; the oil shale semi-coke is coarse slag discharged after the oil shale is subjected to dry distillation to prepare oil; the construction waste recycled aggregate is a granular material obtained by crushing waste concrete construction waste. The road surface anti-skid self-snow-melting deicing material provided by the invention can be applied to ice and snow road surfaces in winter in severe cold areas, plays a role in improving road friction and preventing skidding when vehicles pass through, has a self-snow-melting deicing effect, and improves road driving safety.
Description
Technical Field
The invention relates to the technical field of road materials, in particular to a road surface antiskid self-snow-melting deicing material and a preparation method thereof.
Background
In the northeast of China, the winter time is long, and roads are often invaded by ice and snow disasters. The road is easy to form the condition of first snow and then ice after snowfall, namely the ice and snow slippery road surface in winter. The road surface brings great potential safety hazard to traffic, especially provincial roads, expressways or wet and slippery steep slopes far away from the center of a city. Because of the limited conditions, the snow on the road surface can not be removed immediately by mechanical snow removal. Therefore, the road surface is often subjected to vehicle slippage caused by road wet slip and serious accidents caused by continuous braking and brake failure of the vehicle. Certain measures are required to eliminate the potential traffic safety hazard caused by the slippery road surface of ice and snow. Such a road surface far from the center of a city is often in a state of being water in the daytime and ice at night. In the daytime, along with the rise of temperature and the irradiation of sunlight, snow is slowly melted at the sunny position of the road, and the temperature is reduced in the afternoon to become solid ice and snow mixture and black ice. At present, the problem is solved by adopting a method of spreading snow melting salt. However, the snow-melting salt contains a large amount of chloride ions, which seriously harms the surrounding ecological environment.
CN 108250912A discloses a tough anti-aging pavement anti-skid material and a construction method thereof. The anti-slip material comprises an adhesion primer layer, an elastic wear-resistant layer, an anti-slip aggregate layer and the like. Wherein, the bonding primer layer comprises 75 percent of bisphenol A type epoxy resin and 25 percent of ethylenediamine addition modified aliphatic amine by mass percentage; the elastic wear-resistant layer comprises 35 mass percent of end-shuttle-based butyronitrile rubber modified epoxy resin, 20 mass percent of a proportional mixture of modified polyether amine and ethylenediamine addition modified aliphatic amine curing agent, 0.05 mass percent of a mixture of 2, 4-dihydroxy benzophenone and amine-resistant light stabilizer, 8 mass percent of rubber particles and 36.95 mass percent of quartz powder; the anti-skid aggregate layer comprises 27% of single-component vein-gathering paint and 73% of polyformaldehyde plastic particles in mass ratio. The invention has the advantages of aging resistance, excellent anti-skid property, excellent bonding property with the pavement, stain resistance, water resistance, acid and alkali resistance, environmental protection and the like.
CN 107311516A discloses a colorful road surface antiskid material, which comprises a surface antiskid layer, a wear-resistant material layer and an antiskid bottom layer, wherein the surface antiskid layer is formed by mixing bi-component acrylic resin, brown fused alumina and bauxite, and the wear-resistant material layer is formed by polyether ether ketone, silicon powder and alumina micropowder.
The purpose of the invention patent disclosed above is only suitable for use when a new road is built, and is not suitable for anti-skid treatment of the existing road.
Disclosure of Invention
In view of the above, the present invention provides a road surface antiskid self-snow-melting deicing material and a preparation method thereof, and the antiskid self-snow-melting deicing material provided by the present invention can simultaneously perform antiskid and snow-melting deicing functions.
In order to achieve the above object, the present invention provides the following technical solutions:
the road surface anti-skid self-snow-melting deicing material comprises the following components in parts by weight:
100 parts of straw ash, 20-40 parts of fly ash, 40-80 parts of oil shale ash, 150-250 parts of oil shale semicoke, 200-300 parts of construction waste recycled aggregate and 100-160 parts of water glass.
Preferably, the straw ash is fine ash discharged after biomass straws are combusted in a biomass power plant to generate power, wherein K is in chemical composition2O mass fraction of more than 8 percent and Na2The mass fraction of O is more than 3 percent.
Preferably, the grade of the fly ash meets the requirement of grade 2 in GB T1596 & 2017 fly ash for cement and concrete.
Preferably, the oil shale ash is fine ash discharged after the oil shale is combusted to generate electricity.
Preferably, the oil shale semicoke is granular solid waste generated after dry distillation of the oil shale, and the oil shale semicoke is crushed by a jaw crusher to form granular materials with the particle size range of 4mm-8mm
Preferably, the construction waste recycled aggregate is a granular material obtained by crushing waste concrete by a jaw crusher, and the particle size range is 4-8 mm.
Preferably, the water glass is architectural water glass, and the modulus is 2.0-2.8.
The invention also provides a preparation method of the road surface anti-skid self-snow-melting ice-melting material, which comprises the following steps:
crushing the oil shale semi-coke by a jaw crusher, and then selecting granular materials with the grain size of 4-8 mm to obtain an oil shale semi-coke raw material;
crushing the waste concrete by using a jaw crusher, and then selecting granular materials with the particle size of 4-8 mm to obtain construction waste recycled aggregate;
mixing the straw ash, the fly ash, the oil shale semicoke and the construction waste recycled aggregate according to a certain mixing proportion, and pouring the mixture into a mortar stirrer for mechanical stirring for 5min to obtain a mixed dry material;
pouring water glass into the mixed dry material, and continuously stirring for 5min to obtain a mixed wet material;
passing the obtained mixed wet material through a double-roller extrusion forming machine, wherein the extrusion pressure is 8-12MPa, and obtaining a spherical material with the diameter of 15 mm;
and curing the obtained spherical material for 7 days at the temperature of 60-80 ℃ and the humidity of 90-95% to obtain the road surface antiskid self-snow-melting deicing material.
Has the advantages that: the invention provides a road surface anti-skid self-snow-melting deicing material which comprises the following components in parts by weight: 100 parts of straw ash, 20-40 parts of fly ash, 40-80 parts of oil shale ash, 150-250 parts of oil shale semicoke, 200-300 parts of construction waste recycled aggregate and 100-160 parts of water glass. On one hand, the water glass is used as a cementing material, and powdered coal ash, straw ash, oil shale ash, granular oil shale semi-coke and construction waste recycled aggregate are cemented together to form a spherical material with certain mechanical strength; on the other hand, the activator is used for exciting SiO with potential activity in fly ash, straw ash and oil shale ash2、Al2O3CaO, etc. produce a calcium-silicon product having strength. The fly ash, straw ash and oil shale ash of the present invention contain a certain amount of soluble salts, such as K2O、Na2O, etc., which are dissolved out to lower the freezing point of water when acting on the ice and snow road surface, thereby achieving the effect of melting snow and ice. The oil shale semicoke and the construction waste recycled aggregate are used as granular materials, and when the oil shale semicoke and the construction waste recycled aggregate act on ice and snow roads, the friction coefficient of the roads can be greatly improved in the process of passing people or vehicles, and the anti-skid function is achieved. The main raw materials of the invention are industrial solid wastes, the cost of the raw materials is low, the preparation process is simple, and the invention is suitable for the frozen pavement in winterThe application is particularly suitable for popularization and application in severe cold areas in the north of China. The embodiment result shows that the road surface anti-skid self-snow-melting deicing material prepared by the invention has longer effective duration compared with the common anti-skid material quartz sand.
Detailed Description
The invention provides a road surface antiskid self-snow-melting deicing material which comprises the following components in parts by weight: 100 parts of straw ash, 20-40 parts of fly ash, 40-80 parts of oil shale ash, 150-250 parts of oil shale semicoke, 200-300 parts of construction waste recycled aggregate and 100-160 parts of water glass.
The invention also provides a preparation method of the road surface anti-skid self-snow-melting ice-melting material, which comprises the following steps:
step 1: crushing the oil shale semi-coke by a jaw crusher, and then selecting granular materials with the grain size of 4-8 mm to obtain an oil shale semi-coke raw material;
step 2: crushing the waste concrete by using a jaw crusher, and then selecting granular materials with the particle size of 4-8 mm to obtain construction waste recycled aggregate;
and step 3: mixing the straw ash, the fly ash, the oil shale semicoke and the construction waste recycled aggregate according to a certain mixing proportion, and pouring the mixture into a mortar stirrer for mechanical stirring for 5min to obtain a mixed dry material;
and 4, step 4: pouring water glass into the mixed dry material, and continuously stirring for 5min to obtain a mixed wet material;
and 5: passing the obtained mixed wet material through a double-roller extrusion forming machine, wherein the extrusion pressure is 8-12MPa, and obtaining a spherical material with the diameter of 15 mm;
step 6: and curing the obtained spherical material for 7 days at the temperature of 60-80 ℃ and the humidity of 90-95% to obtain the road surface antiskid self-snow-melting deicing material.
The following will explain the road surface anti-skid self-snow-melting ice-melting material and the preparation method thereof provided by the invention in detail with reference to the examples, but they should not be construed as limiting the scope of the invention.
Example 1
Step 1: weighing 500Kg of oil shale semicoke, crushing by adopting a jaw crusher, and taking the oil shale semicoke with the particle size of 4mm-8mm as a raw material for standby application through a self-made square-hole sieve with the sieve pore size of 4mm and 8mm after crushing;
step 2: weighing 500Kg of waste concrete, crushing by adopting a jaw crusher, and taking oil shale semicoke with the particle size of 4-8 mm as a raw material for standby application through a self-made square-hole sieve with the sieve pore size of 4-8 mm after crushing;
and step 3: respectively weighing 100Kg of straw ash, 20Kg of fly ash, 40Kg of oil shale ash, 150Kg of oil shale semicoke and 200Kg of construction waste recycled aggregate, pouring into a mortar stirrer, and mechanically stirring for 5min to obtain a mixed dry material;
and 4, step 4: pouring 100Kg of water glass into the dry mixed material, and continuously stirring for 5min to obtain a wet mixed material;
and 5: passing the obtained mixed wet material through a double-roller extrusion forming machine, wherein the extrusion pressure is 8MPa, and obtaining a spherical material with the diameter of 15 mm;
step 6: and curing the obtained spherical material for 7 days at the temperature of 60 ℃ and the humidity of 90-95% to obtain the road surface antiskid self-snow-melting deicing material.
In order to compare and test the anti-skid performance of the product, a common household car is compared with quartz sand on the same ice and snow road surface in an anti-skid mode, the self weight of the common household car is 1.5T, the quartz sand is coarse sand for building, and the fineness modulus is 3.2. The spreading amount is 200g/m on the ice road surface with the ice layer thickness of more than 3mm2The braking distance is measured at the same speed of 40km/h and the ambient temperature of-23 ℃ for 30min and 2h after spreading, the anti-skid effect of the product and the quartz sand anti-skid material is determined, and the test result is shown in table 1.
TABLE 1 comparison of the anti-slip effect of the product with that of quartz sand
| Test items | Quartz sand | The product |
| Braking distance/m after 30min | 16.8 | 12.6 |
| 2h rear braking distance/m | 24.8 | 10.4 |
From the test experiment result, the product has better anti-skid effect than quartz sand and good anti-skid performance.
Example 2
Step 1: weighing 500Kg of oil shale semicoke, crushing by adopting a jaw crusher, and taking the oil shale semicoke with the particle size of 4mm-8mm as a raw material for standby application through a self-made square-hole sieve with the sieve pore size of 4mm and 8mm after crushing;
step 2: weighing 500Kg of waste concrete, crushing by adopting a jaw crusher, and taking oil shale semicoke with the particle size of 4-8 mm as a raw material for standby application through a self-made square-hole sieve with the sieve pore size of 4-8 mm after crushing;
and step 3: respectively weighing 100Kg of straw ash, 30Kg of fly ash, 60Kg of oil shale ash, 200Kg of oil shale semicoke and 250Kg of construction waste recycled aggregate, pouring into a mortar stirrer, and mechanically stirring for 5min to obtain a mixed dry material;
and 4, step 4: pouring 140Kg of water glass into the mixed dry material, and continuously stirring for 5min to obtain a mixed wet material;
and 5: passing the obtained mixed wet material through a double-roller extrusion forming machine, wherein the extrusion pressure is 10MPa, and obtaining a spherical material with the diameter of 15 mm;
step 6: and curing the obtained spherical material for 7 days at the temperature of 70 ℃ and the humidity of 90-95% to obtain the road surface antiskid self-snow-melting deicing material.
In order to compare and test the anti-skid performance of the product, a common household car is compared with quartz sand on the same ice and snow road surface in an anti-skid mode, the self weight of the common household car is 1.5T, the quartz sand is coarse sand for building, and the fineness modulus is 3.2. The spreading amount is 200g/m on the ice road surface with the ice layer thickness of more than 3mm2The braking distance is measured at the same speed of 40km/h and the ambient temperature of-23 ℃ for 30min and 2h after spreading, the anti-skid effect of the product and the quartz sand anti-skid material is determined, and the test result is shown in table 2.
TABLE 2 comparison experiment results of the product and the anti-slip effect of quartz sand
| Test items | Quartz sand | The product |
| Braking distance/m after 30min | 16.8 | 10.8 |
| 2h rear braking distance/m | 24.8 | 9.4 |
From the test experiment result, the product has better anti-skid effect than quartz sand and good anti-skid performance.
Example 3
Step 1: weighing 500Kg of oil shale semicoke, crushing by adopting a jaw crusher, and taking the oil shale semicoke with the particle size of 4mm-8mm as a raw material for standby application through a self-made square-hole sieve with the sieve pore size of 4mm and 8mm after crushing;
step 2: weighing 500Kg of waste concrete, crushing by adopting a jaw crusher, and taking oil shale semicoke with the particle size of 4-8 mm as a raw material for standby application through a self-made square-hole sieve with the sieve pore size of 4-8 mm after crushing;
and step 3: respectively weighing 100Kg of straw ash, 40Kg of fly ash, 80Kg of oil shale ash, 250Kg of oil shale semicoke and 300Kg of construction waste recycled aggregate, pouring the weighed materials into a mortar stirrer, and mechanically stirring for 5min to obtain a mixed dry material;
and 4, step 4: 160Kg of water glass is poured into the mixed dry material and is continuously stirred for 5min to obtain a mixed wet material;
and 5: passing the obtained mixed wet material through a double-roller extrusion forming machine, wherein the extrusion pressure is 12MPa, and obtaining a spherical material with the diameter of 15 mm;
step 6: and curing the obtained spherical material for 7 days at the temperature of 80 ℃ and the humidity of 90-95% to obtain the road surface antiskid self-snow-melting deicing material.
In order to compare and test the anti-skid performance of the product, a common household car is compared with quartz sand on the same ice and snow road surface in an anti-skid mode, the self weight of the common household car is 1.5T, the quartz sand is coarse sand for building, and the fineness modulus is 3.2. The spreading amount is 200g/m on the ice road surface with the ice layer thickness of more than 3mm2The braking distance is measured at the same speed of 40km/h and the ambient temperature of-23 ℃ for 30min and 2h after spreading, the anti-skid effect of the product and the quartz sand anti-skid material is determined, and the test result is shown in table 3.
TABLE 3 contrast experiment result of the product and the anti-slip effect of the quartz sand
| Test items | Quartz sand | The product |
| Braking distance/m after 30min | 16.8 | 10.0 |
| 2h rear braking distance/m | 24.8 | 8.8 |
From the test experiment result, the product has better anti-skid effect than quartz sand and good anti-skid performance.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (8)
1. The road surface anti-skid self-snow-melting deicing material is characterized by comprising the following components in parts by weight: 100 parts of straw ash, 20-40 parts of fly ash, 40-80 parts of oil shale ash, 150-250 parts of oil shale semicoke, 200-300 parts of construction waste recycled aggregate and 100-160 parts of water glass.
2. The road surface anti-skid self-snow-melting and deicing material as claimed in claim 1, wherein the straw ash is fine ash discharged after biomass straws are combusted in a biomass power plant to generate power, and K is chemical composition2O mass fraction of more than 8 percent and Na2The mass fraction of O is more than 3 percent.
3. The road surface antiskid self-snow-melting deicing material as set forth in claim 1, characterized in that the fly ash is fly ash discharged from coal-fired thermal power plants, and the grade of fly ash meets the requirement of class 2 in GB T1596-2017 fly ash for use in cement and concrete.
4. The road surface antiskid self-snow-melting deicing material as set forth in claim 1, wherein the oil shale ash is fine ash discharged after oil shale is combusted to generate electricity.
5. The road surface antiskid self-snow-melting deicing material as claimed in claim 1, wherein the oil shale semicoke is granular solid waste generated after dry distillation of oil shale, and the oil shale semicoke is crushed by a jaw crusher to obtain granular materials with the particle size range of 4mm-8 mm.
6. The road surface antiskid self-snow-melting deicing material as claimed in claim 1, wherein the construction waste recycled aggregate is a granular material with the particle size range of 4mm-8mm which is selected from waste concrete after being crushed by a jaw crusher.
7. The road surface antiskid self-snow-melting deicing material according to claim 1, characterized in that the water glass is architectural water glass with a modulus of 2.0-2.8.
8. The preparation method of the road surface antiskid self-snow-melting deicing material as claimed in any one of claims 1 to 7, characterized by comprising the following steps:
crushing the oil shale semi-coke by a jaw crusher, and then selecting granular materials with the grain size of 4-8 mm to obtain an oil shale semi-coke raw material;
crushing the waste concrete by using a jaw crusher, and then selecting granular materials with the particle size of 4-8 mm to obtain construction waste recycled aggregate;
mixing the straw ash, the fly ash, the oil shale semicoke and the construction waste recycled aggregate according to a certain mixing proportion, and pouring the mixture into a mortar stirrer for mechanical stirring for 5min to obtain a mixed dry material;
pouring water glass into the mixed dry material, and continuously stirring for 5min to obtain a mixed wet material;
passing the obtained mixed wet material through a double-roller extrusion forming machine, wherein the extrusion pressure is 8-12MPa, and obtaining a spherical material with the diameter of 15 mm;
and maintaining the obtained spherical material at the temperature of 60-80 ℃ and the humidity of 90-95% to obtain the road surface anti-skid self-snow-melting deicing material.
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| CN111187448A (en) * | 2020-02-17 | 2020-05-22 | 西北师范大学 | Oil shale semicoke-based composite flame retardant, preparation method thereof and application thereof in high polymer material |
| CN115433544A (en) * | 2022-10-08 | 2022-12-06 | 吉林大学 | Green and environment-friendly road snow-melting anti-skid composite material and preparation method thereof |
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| CN111187448A (en) * | 2020-02-17 | 2020-05-22 | 西北师范大学 | Oil shale semicoke-based composite flame retardant, preparation method thereof and application thereof in high polymer material |
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| CN115433544A (en) * | 2022-10-08 | 2022-12-06 | 吉林大学 | Green and environment-friendly road snow-melting anti-skid composite material and preparation method thereof |
| CN115433544B (en) * | 2022-10-08 | 2023-09-19 | 吉林大学 | Environment-friendly road snow-melting anti-skid composite material and preparation method thereof |
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