CN108285648B - Pavement asphalt deicing anti-stripping additive and preparation method thereof - Google Patents
Pavement asphalt deicing anti-stripping additive and preparation method thereof Download PDFInfo
- Publication number
- CN108285648B CN108285648B CN201810120115.2A CN201810120115A CN108285648B CN 108285648 B CN108285648 B CN 108285648B CN 201810120115 A CN201810120115 A CN 201810120115A CN 108285648 B CN108285648 B CN 108285648B
- Authority
- CN
- China
- Prior art keywords
- agent
- deicing
- stripping
- additive
- asphalt
- 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.)
- Active
Links
Classifications
-
- 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
- C08K9/00—Use of pretreated ingredients
- C08K9/04—Ingredients treated with organic substances
-
- 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
- C08K3/16—Halogen-containing compounds
-
- 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
- C08K5/00—Use of organic ingredients
- C08K5/36—Sulfur-, selenium-, or tellurium-containing compounds
- C08K5/38—Thiocarbonic acids; Derivatives thereof, e.g. xanthates ; i.e. compounds containing -X-C(=X)- groups, X being oxygen or sulfur, at least one X being sulfur
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L95/00—Compositions of bituminous materials, e.g. asphalt, tar, pitch
-
- 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
- C08K3/16—Halogen-containing compounds
- C08K2003/162—Calcium, strontium or barium halides, e.g. calcium, strontium or barium chloride
-
- 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
- C08K3/16—Halogen-containing compounds
- C08K2003/166—Magnesium halide, e.g. magnesium chloride
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Civil Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Road Paving Structures (AREA)
Abstract
The deicing and anti-stripping additive for the pavement asphalt comprises the following components in parts by weight: 60% -90% of deicing agent; 5% -35% of anti-stripping agent; according to the use requirement, one or more of a filling agent and an anti-aging agent are also added, wherein the contents of the filling agent and the anti-aging agent are as follows: 0.1 to 5.0 percent of filling agent; 0.1 to 5.0 percent of age resister. The additive can obviously improve the low-temperature deicing, anti-icing and water damage stripping performances of the pavement asphalt, and prolong the service life of the pavement; the additive is safe to locomotive materials and has no corrosion to main metal material parts of roads and bridges. The invention does not need special production equipment, has simple production process and no pollution.
Description
Technical Field
The invention relates to a pavement asphalt deicing and anti-stripping additive and a preparation method thereof, belonging to the technical field of asphalt pavement deicing and anti-stripping.
Background
Under the ice and snow meteorological conditions, when snow is accumulated on the road and the road is frozen, the friction coefficient of the road surface is obviously reduced, the snow can cover road surface signs and the like, and the normal running of the locomotive is seriously threatened. Therefore, deicing and anti-icing of the road surface is one of the indispensable activities for keeping the operation safety in winter in the transportation industry. The ice and snow blocking traffic can not find a good solution so far, which is a worldwide problem, and particularly, accidents are easy to happen on expressways due to high vehicle speeds.
The existing measures for treating the accumulated snow on the road surface can be roughly divided into two categories, namely a removal method and an ablation method. The removing method mainly comprises the steps of breaking the accumulated snow by means of manpower or mechanical equipment and the like and transferring the broken snow to other places from the road surface so as to ensure the traffic safety of the road surface; ablation is primarily accomplished by converting the accumulated snow into flowable water using a snow melting agent or heat. The snow-melting agent scattered on the surface of the road is adopted to inhibit ice and snow, so that the using effect is difficult to ensure, and the harmful substances in the snow-melting agent are strong, corrode road materials, equipment and motor vehicles, influence the using performance of the road surface and cause environmental pollution to a certain degree.
The highway is generally made of basalt aggregate or diabase aggregate, but the aggregate has poor adhesion with asphalt, and asphalt pavement is corroded by water to peel off the aggregate in the using process. It is therefore necessary to incorporate into the asphalt a suitable anti-stripping agent to achieve an improved level of adhesion of the asphalt to the aggregate. It is common practice to incorporate some abrasive fibrous materials into the asphalt pavement or to have some anti-peeling particles, which enter cracks in the pavement along with the movement of vehicles or increase the adhesion between asphalt and aggregate once the pavement is broken. Organic amine compounds are anti-stripping agents which are researched more at present, and are mostly based on aliphatic amine, and other forms of amino asphalt anti-stripping agents are mainly based on phthalein polyamine and imidazoline. Amine groups in the anti-stripping agent react with the aggregate surface and part of hydrocarbon to generate a combination, and hydrocarbon chains act as a connecting action on the hydrophilic aggregate and the hydrophobic asphalt surface, so the amine anti-stripping agent can better improve the adhesion of asphalt and aggregate, but the stripping agent only generates physical adsorption on the asphalt surface and has poor thermal stability, and the long-term performance is not good.
The road surface in the severe cold area of accumulated snow is easy to be worn by the crack caused by frost heaving or temperature stress. The anti-stripping nano particles are added in the deicing additive, so that the anti-stripping additive can be released when the deicing agent is slowly released, and the directional repair effect on the damaged pavement can be achieved, so that the driving safety of the area with frequent ice condensation is ensured. The adhesion capability between the asphalt and the stone is enhanced by reducing the interfacial tension of the asphalt and the stone, so that the phenomenon of water damage of the asphalt pavement is prevented or reduced; it is seen that the development of an asphalt pavement deicing and anti-stripping agent meeting the requirements of the latest standards is a major goal of the current asphalt additive materials.
Related patents of introducing corrosion inhibitors into a pavement deicing agent taking organic acid salts as freezing point depressants are reported more, and emphasis is placed on solving the corrosion of the deicing agent on certain metal materials. CN201110270365.2 discloses a formic acid type snow-melting agent, wherein a corrosion inhibition system consists of silicate, sodium metaaluminate, sodium carbonate and organic phosphate containing phosphoryl groups, and the seaworthiness of the corrosion inhibition system is evaluated according to AMS 1431C.
Related patents of the anti-stripping agent are reported more, and amine and non-amine are available. CN103601392A discloses a long-chain alkyl polyamine series asphalt anti-stripping agent, which comprises long-chain alkyl organic acid, epichlorohydrin and organic amine as raw materials, and has good anti-stripping ability, good compatibility with asphalt, and easy dissolution and dispersion in asphalt. CN102531445A discloses a non-amine powdery asphalt anti-stripping agent, which comprises sodium lignosulfonate and diatomite in a weight ratio of (4-5): (6-4). The main raw material of the anti-stripping agent is derived from the plant surfactant, and the anti-stripping agent is renewable and has little pollution to the environment.
Triazine compounds are reported as lubricating antiwear additives, and for example, CN1513961 introduces an extreme pressure antiwear agent of monothio-phosphorus triazine derivatives and a preparation method thereof. The synthesized triazine derivative containing sulfur and phosphorus can be used as a multifunctional lubricant additive, and has good wear resistance and extreme pressure resistance, and also has corrosion resistance, oxidation resistance and other properties. However, no report is made on the use of the asphalt as an anti-stripping agent.
There are many reports of a single deicing agent and anti-peeling agent, but there are few reports of a multifunctional agent that integrates a deicing agent and an anti-peeling agent.
Disclosure of Invention
The invention aims to provide a highway pavement asphalt deicing and anti-stripping additive which is reasonable in component collocation, simple in preparation process, convenient to use and excellent in performance and meets the requirement of safe running of an engine on an asphalt pavement in ice and snow weather, aiming at overcoming the function defects of the existing additive.
The technical scheme for realizing the invention is as follows, the pavement asphalt deicing anti-stripping additive comprises the following components in parts by weight:
60% -90% of deicing agent;
5% -35% of anti-stripping agent;
according to the use requirement, one or more of a filling agent and an anti-aging agent can be added, and the contents of the additives are generally as follows:
0.1 to 5.0 percent of filler
0.1 to 5.0 percent of age resister
The deicing agent is one or more of inorganic sodium salt, inorganic potassium salt, inorganic calcium salt, inorganic magnesium salt and inorganic barium salt modified by organic carboxylic acid.
The anti-stripping agent is a diamino monoxanthate sym-triazine derivative.
The above-mentioned antiaging agent is benzotriazole or benzophenone type antiaging agent.
The filler is one or more of urea resin, epoxy resin, terpene resin, rosin modified resin and octyl phenolic resin.
The modified additive is applied to the pavement asphalt, is added into the pavement asphalt according to a proper proportion, can be uniformly stirred with stone at the temperature of 180 ℃ and 200 ℃ for paving, and is used for road construction.
The preparation method of the pavement asphalt deicing anti-stripping additive comprises the following steps
(1) Adding a deicer, an organic acid, an anti-stripping agent, a filler or an anti-aging agent into xylene, and reacting for 2-3 hours in a stirring reactor at the temperature of 100 ℃ and 120 ℃;
(2) after the deicing agent modified by the organic acid and the stripping agent are stirred and mixed uniformly in vacuum, the temperature is raised to about 160-180 ℃, and the stirring reaction is continued for 0.5 to 1.0 hour;
(3) after stirring uniformly, decompressing and steaming to remove the solvent;
(4) and when the solid is formed, extruding, granulating and screening to obtain solid deicing and anti-stripping agent particles with the particle size of 2-5 mm.
The additive has the beneficial effects that the additive can obviously improve the low-temperature deicing, anti-icing and water damage stripping performances of the pavement asphalt, and prolong the service life of the pavement; the additive is safe to locomotive materials and has no corrosion to main metal material parts of roads and bridges. The invention does not need special production equipment, has simple production process and no pollution.
Detailed Description
The embodiments and effects of the present invention will be further described below by way of specific examples.
TABLE 1 composition and content (wt%) of the pavement asphalt deicing and anti-stripping agent of the invention
Example 1
97.0g of NaCl, 22.5g of stearic acid, 2, 4-bis- (di-n-butylamino) -6-isopentyl xanthate-1, 3, 5-s-triazine as an anti-stripping agent and 1-3% of rosin modified resin as a filler are added into dimethylbenzene and reacted for 2-3 hours in a stirring reactor at the temperature of 100 ℃ and 120 ℃. And (3) uniformly stirring and mixing the stearic acid modified sodium chloride deicing agent and the composite triazine anti-stripping agent in vacuum. And then heating to about 160-180 ℃, continuously stirring for reaction for 0.5-1.0 hour, uniformly stirring, decompressing and steaming to remove the solvent, and when a solid is formed, performing extrusion granulation and screening to obtain solid deicing and anti-stripping agent particles with the particle size of 2-5 mm.
Example 2
97.0g of calcium chloride, 45.0g of oleic acid, 10.0g of anti-stripping agent 2, 4-bis- (di-n-octylamino) -6-isoamyl xanthate-1, 3, 5-s-triazine and 10.0g of filling agent terpene resin are added into dimethylbenzene and reacted for 2 to 3 hours in a stirring reactor at the temperature of 100 ℃ and 120 ℃. Heating to about 160-180 ℃ after vacuum stirring and mixing uniformly, continuously stirring and reacting for 0.5-1.0 h, decompressing and steaming to remove the solvent after stirring uniformly, and obtaining solid deicing and anti-stripping agent particles with the particle size of 2-5mm by adopting extrusion granulation and screening when solid is formed.
Example 3
97.0g of calcium chloride, 60.0g of oleic acid, 10.0g of anti-stripping agent 2, 4-bis- (di-n-butylamino) -6-isoamyl xanthogen-1, 3, 5-s-triazine and 1-3% of filler are added into dimethylbenzene and reacted for 2-3 hours in a stirring reactor at the temperature of 100 ℃ and 120 ℃. After vacuum stirring and mixing evenly. And then heating to about 160-180 ℃, continuously stirring for reaction for 0.5-1.0 hour, uniformly stirring, decompressing and steaming to remove the solvent, and when a solid is formed, performing extrusion granulation and screening to obtain solid deicing and anti-stripping agent particles with the particle size of 2-5 mm.
Example 4
97.0g of magnesium chloride, 50.0g of stearic acid, 6.5g of anti-stripping agent 2, 4-bis- (diisooctylamino) -6-isoamyl xanthogenate-1, 3, 5-s-triazine 1-5 percent and 5.0g of filler urea-formaldehyde resin are added into 200ml of dimethylbenzene and reacted for 2 to 3 hours in a stirring reactor at the temperature of 100 ℃ and 120 ℃. After the additive is stirred and mixed evenly in vacuum. And then heating to about 160 ℃ and 180 ℃, continuously stirring for reaction for 0.5-1.0 hour, after stirring uniformly, cooling to 120 ℃, adding 2.0g of 2- (2H-benzotriazole-2-yl) -4, 6-di-tert-amylphenol, continuously stirring for 1.0 hour, then decompressing and steaming to remove the solvent, and when a solid is formed, performing extrusion granulation and screening to obtain 2-5mm solid deicing and anti-stripping agent particles.
Example 5
100.0g of calcium chloride, 50.0g of oleic acid, 10 g of anti-stripping agent 2, 4-bis- (di-n-butylamino) -6-isoamyl xanthogen-1, 3, 5-s-triazine and 5.0g of filler octyl phenolic resin are added into dimethylbenzene and reacted for 2 to 3 hours in a stirring reactor at the temperature of 100 ℃ and 120 ℃. After the inorganic salt deicing agent with the surface modification and the composite triazine anti-stripping agent are stirred and mixed evenly in vacuum. And then heating to about 160-180 ℃, continuously stirring for reaction for 0.5-1.0 hour, uniformly stirring, cooling to 120 ℃, adding 2.0g of 2-hydroxy-4-methoxybenzophenone, continuously stirring for 1.0 hour, then decompressing and steaming to remove the solvent, and when a solid is formed, carrying out extrusion granulation and screening to obtain 2-5mm solid type deicing and anti-stripping agent particles.
Example 6
For the full-automatic asphalt penetrometer model CXS-2801 of examples 3 and 5, the penetrometer test was carried out on each sample according to the test method T0604, with the unit of 0.1mm and the test results being the values listed in Table 2.
TABLE 2 penetration values (0.1mm) of asphalts with different contents of additives
Example 7
The ductility value of each sample at 25 ℃ is measured in a SY-2.0C type asphalt ductility instrument according to a standard test method, the unit cm is obtained, and the stretching speed is 5 cm/min. The results are shown in Table 3.
TABLE 3 ductility of different amounts of additives
Example 8
The softening point of each sample was measured by a CXS-2806 full-automatic softening point measuring instrument in accordance with the T0606 test method. The results are shown in Table 4.
TABLE 4 softening points of bitumens with different additive contents
Example 9
Freeze resistance test for preparation of additives:
(1) freeze resistance test of additives
Four beakers were charged with 3g of sodium chloride, 3.0g of example 1, 3.0g of example 5, and a blank, respectively, and 100 ml of deionized water were added. The mixture was placed in the freezer compartment of a refrigerator and frozen, and after 24 hours, the result was that the water had completely frozen and the aqueous solution containing sodium chloride had substantially frozen, with a relatively large amount of crushed ice in example 1 and a relatively thin layer of ice in example 4.
(2) Freezing test of core samples
Placing the compacted asphalt pavement core sample into a freezing area of a refrigerator for freezing, observing the icing condition after 24 hours, wherein a layer of frost is condensed on the surface of the compacted asphalt pavement core sample, namely the core sample added with the Liume (synthesized), on the left, and the core sample added with the Liume on the right. a and b are the icing condition of a day when the refrigerator is placed in the refrigerator, a is the Lulimei (synthetic), and b is the Lulimei, and almost no ice exists.
Example 10
Corrosion test of additives:
taking five jars, respectively adding 5g CaCl25g of example 1, 5g of example 4+ 1% NaOH, and a blank, five jars were added to 100 ml of deionized water, dispersed by sonication, and after dissolution, the pH of each solution was measured. And then putting the polished deformed steel bar into a wide-mouth bottle, and observing the rusting condition of the wide-mouth bottle. The results are shown in Table 5.
TABLE 5 summary of corrosion of steel bars by five solutions
Example 11
According to the Marshall test mix proportion design standard of the asphalt stabilized macadam mixture, the oilstone ratio is 4.8%, the water absorption of Marshall test pieces is measured, the water absorption of the test pieces is less than 2%, and the technical standard is met. The compacted marshall test piece is proved to be in accordance with the requirements.
Example 12
5.0 wt% of each of examples 1, 2, 3, 4 and 5 was added to SBS modified asphalt having an oilstone ratio of 4.8% to perform a Standard Marshall stability test, and according to the design Standard of the Marshall test mix proportion of the asphalt stabilized macadam mixture, the asphalt stability of the modified asphalt used should be not less than 7.5KN and the flow value should be in the range of 15 to 40(0.1 mm). And the data obtained by the test are in accordance with the standard. The results of the tests were that they were between 11.5 and 14.8KN and the flow values were between 23 and 25(0.1 mm).
Example 13
The results of the water-immersion marshall stability test in which 5.0 wt% of each of examples 1, 2, 3, 4, and 5 was added to SBS modified asphalt having an oilstone ratio of 4.8% showed that the stability and flow values were increased by adding the test pieces of examples 1 to 5.
The deicing and stripping resistant agent for the asphalt pavement surface provided by the embodiment of the invention is corrosion-free, and when the deicing and stripping resistant agent is added into an asphalt mixture, the antifreezing capacity of the pavement can be increased, the pavement is prevented from being frozen at a low temperature, and the stripping resistant performance of the asphalt pavement can be increased, so that the service life of the asphalt pavement can be prolonged.
Claims (1)
1. The pavement asphalt deicing and anti-stripping additive is characterized by comprising the following components in parts by weight:
60% -90% of deicing agent;
5% -35% of anti-stripping agent;
according to the use requirement, one or more of a filling agent and an anti-aging agent are also added, wherein the contents of the filling agent and the anti-aging agent are as follows:
0.1 to 5.0 percent of filling agent;
0.1 to 5.0 percent of age resister;
the deicing agent is one or more of organic carboxylic acid modified inorganic sodium salt, inorganic potassium salt, inorganic calcium salt, inorganic magnesium salt and inorganic barium salt;
the anti-stripping agent is a diamino monoxanthate sym-triazine derivative;
the anti-aging agent is benzotriazole or benzophenone type anti-aging agent;
the filler is one or more of urea resin, epoxy resin, terpene resin, rosin modified resin and octyl phenolic resin;
the preparation method of the additive is as follows
(1) Adding a deicer, an organic acid, an anti-stripping agent, a filler or an anti-aging agent into xylene, and reacting for 2-3 hours in a stirring reactor at the temperature of 100 ℃ and 120 ℃;
(2) after the deicing agent modified by the organic acid and the stripping agent are stirred and mixed uniformly in vacuum, the temperature is raised to about 160-180 ℃, and the stirring reaction is continued for 0.5 to 1.0 hour;
(3) after stirring uniformly, decompressing and steaming to remove the solvent;
(4) when the solid is formed, extruding granulation is adopted, and solid type deicing and anti-stripping agent particles with the particle size of 2-5mm are obtained by screening;
the additive is applied to the pavement asphalt, is added into the pavement asphalt according to the proportion of 10 percent, and can be uniformly stirred with stone at the temperature of 180 ℃ and 200 ℃ for paving for road construction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810120115.2A CN108285648B (en) | 2018-02-07 | 2018-02-07 | Pavement asphalt deicing anti-stripping additive and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810120115.2A CN108285648B (en) | 2018-02-07 | 2018-02-07 | Pavement asphalt deicing anti-stripping additive and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108285648A CN108285648A (en) | 2018-07-17 |
| CN108285648B true CN108285648B (en) | 2020-07-10 |
Family
ID=62832743
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810120115.2A Active CN108285648B (en) | 2018-02-07 | 2018-02-07 | Pavement asphalt deicing anti-stripping additive and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108285648B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110229519B (en) * | 2019-05-15 | 2021-12-24 | 徐州振峰新材料科技有限公司 | Asphalt composite additive containing silicon rubber elastofluid and preparation and use methods thereof |
| CN110698872A (en) * | 2019-10-22 | 2020-01-17 | 重庆市市政设计研究院 | Non-chloride snow-melting and ice-suppressing pavement paving material |
| CN112094079A (en) * | 2020-09-25 | 2020-12-18 | 新疆交通建设集团股份有限公司 | Asphalt mixture and preparation method and construction method thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4230545C1 (en) * | 1992-09-09 | 1994-03-24 | Mannesmann Ag | Process for producing a synthetic salty crushed sand and / or grit |
| CN102173656A (en) * | 2011-01-26 | 2011-09-07 | 浙江交工高等级公路养护有限公司 | Bituminous concrete material capable of reducing adhesion of snow ice on road surface and preparation method thereof |
| CN102531472A (en) * | 2011-12-20 | 2012-07-04 | 上海浦东路桥建设股份有限公司 | Open-gradation storage type asphalt mixture for patching of draining asphalt pavement |
| CN105585271A (en) * | 2014-10-22 | 2016-05-18 | 中国石油化工股份有限公司 | Additive for improving water stability of asphalt mixture and application method thereof |
| CN106758677A (en) * | 2016-12-26 | 2017-05-31 | 湖北工业大学 | The method of ice and snow area granulated crumb rubber asphalt mixture application technology |
| CN106883626A (en) * | 2017-03-29 | 2017-06-23 | 合肥天沃能源科技有限公司 | A kind of modified asphalt for road and preparation method |
-
2018
- 2018-02-07 CN CN201810120115.2A patent/CN108285648B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4230545C1 (en) * | 1992-09-09 | 1994-03-24 | Mannesmann Ag | Process for producing a synthetic salty crushed sand and / or grit |
| CN102173656A (en) * | 2011-01-26 | 2011-09-07 | 浙江交工高等级公路养护有限公司 | Bituminous concrete material capable of reducing adhesion of snow ice on road surface and preparation method thereof |
| CN102531472A (en) * | 2011-12-20 | 2012-07-04 | 上海浦东路桥建设股份有限公司 | Open-gradation storage type asphalt mixture for patching of draining asphalt pavement |
| CN105585271A (en) * | 2014-10-22 | 2016-05-18 | 中国石油化工股份有限公司 | Additive for improving water stability of asphalt mixture and application method thereof |
| CN106758677A (en) * | 2016-12-26 | 2017-05-31 | 湖北工业大学 | The method of ice and snow area granulated crumb rubber asphalt mixture application technology |
| CN106883626A (en) * | 2017-03-29 | 2017-06-23 | 合肥天沃能源科技有限公司 | A kind of modified asphalt for road and preparation method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108285648A (en) | 2018-07-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108285648B (en) | Pavement asphalt deicing anti-stripping additive and preparation method thereof | |
| CA2658194C (en) | Methods and compositions for dust control and freeze control | |
| CN111675506B (en) | Anti-freezing agent and preparation method thereof | |
| CN102531473B (en) | Composite modified asphalt mixture with high snow melting efficiency and preparation method thereof | |
| CN105647211B (en) | A kind of preparation method of the road surface mist sealing with hydrophobic anti-icing performance | |
| CN107573898B (en) | Antifreezing material with controllable slow-release rate applied to concrete pavement and preparation method thereof | |
| CN109627974A (en) | A kind of anticoagulant ice coating of super-hydrophobic bituminous pavement and preparation method thereof | |
| KR100588820B1 (en) | Composition for liquid type snow-removing agent | |
| CN108531081B (en) | Slow-release environment-friendly anti-freezing coating applied to asphalt pavement and preparation method thereof | |
| CN112624668B (en) | Antiskid and anti-icing night visible asphalt pavement material and preparation method thereof | |
| RU2280666C1 (en) | Agent preventing ice-crusted pavement conditions | |
| CN113373757A (en) | Method for fine surface treatment of anti-freezing asphalt pavement | |
| CN110746933B (en) | Active snow-melting agent capable of realizing slow release based on coupling reaction and preparation method thereof | |
| WO2007096690A1 (en) | Anti-ice and anti-snow composition for road pavings | |
| CN111087827B (en) | Asphalt composite additive containing amorphous carbon and silicone rubber elastohydrodynamic and preparation method thereof | |
| CN110229519B (en) | Asphalt composite additive containing silicon rubber elastofluid and preparation and use methods thereof | |
| CN113528087B (en) | Environment-friendly slow-release snow-melting agent, preparation method thereof and application thereof in micro-surfacing mixture | |
| CN113860799A (en) | Curing cold-patch material suitable for low-temperature humid environment and preparation method thereof | |
| RU2294352C1 (en) | Solid antiicing composition and a method for removing ice from road surfaces | |
| CN112250813A (en) | Temperature-sensitive anti-freezing material for asphalt and concrete pavement and preparation method thereof | |
| CN114958304B (en) | Anti-icing agent and production method and application thereof | |
| Wang et al. | Comparative Study of Deicing Asphalt Mixtures on Pavement Performance and Anti-Icing Effectiveness | |
| CN115433544B (en) | Environment-friendly road snow-melting anti-skid composite material and preparation method thereof | |
| CN111234779B (en) | Non-chloride ion-containing snow-melting salt particles and preparation method thereof | |
| CN116515393A (en) | Method for quickly removing road snow by pre-coated anti-icing paint |
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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |