A composition for treating road surface water and a method of manufacturing the same
By using a composite water-absorbing material to absorb accumulated water and utilizing the heat from an initiator and a heat-storing material to evaporate the moisture, the problem of water damage to asphalt pavements is solved. This achieves rapid fixation and long-term evaporation of accumulated water, reducing the risk of water erosion of the pavement structure and demonstrating good application value.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- GUIZHOU TRANSPORTATION PLANNING SURVEY & DESIGN ACADEME
- Filing Date
- 2024-02-28
- Publication Date
- 2026-05-29
AI Technical Summary
Existing technologies cannot effectively prevent water from directly contacting asphalt pavement and its internal structure, which makes asphalt pavement prone to water damage during long-term use.
A composition for treating road surface water accumulation is provided, comprising hollow spheres, water-absorbing material, initiator, heat storage material, and adhesive. The water-absorbing material adsorbs accumulated water, the initiator releases heat to evaporate the water, the heat storage material stores heat and continuously releases heat, the anti-corrosion material prevents the components from decaying, and the adhesive binds them together to form a whole, thereby quickly fixing and evaporating the accumulated water.
It achieves rapid adsorption and fixation of road water, with a maximum thermal stability temperature of over 50°C and a heating time of 60 minutes, reducing the amount of water entering the road surface structure, preventing road damage, and is recyclable.
Abstract
Description
Technical Field
[0001] This invention relates to the field of road drainage, and particularly to a composition for treating road surface water accumulation, and also to a method for preparing the composition for treating road surface water accumulation. Background Technology
[0002] Water damage to asphalt pavements refers to a phenomenon in which water causes damage to asphalt concrete pavements, leading to various defects. Asphalt pavements cannot be completely waterproof. When water enters the pavement structure through cracks or other pathways, it reduces the asphalt's adhesion. Because aggregate surfaces have a stronger adsorption capacity for water than for asphalt, prolonged contact causes asphalt to peel off from the aggregate surface. The influence of traffic loads also causes water flow, generating dynamic water pressure that carries away the peeled asphalt, resulting in defects such as loosening, peeling, and potholes. Existing methods for treating water damage to asphalt pavements include: ① Improving the pavement structure's drainage system. The pavement structure design should ensure the timely drainage of surface water and groundwater. ② Asphalt material selection should consider using asphalt with high viscosity and high content of surface-active components. ③ Aggregate selection: Under the premise that other indicators meet requirements, alkaline aggregates with low SiO2 content should be selected as much as possible. If alkaline aggregates are not available, admixtures should be added to improve adhesion, such as hydrated lime and anti-stripping agents. ④ During construction, ensure the aggregate is dry, free of impurities, and thoroughly mixed to prevent segregation during paving and to meet compaction requirements during rolling. However, these measures cannot completely prevent direct contact between water and the asphalt pavement and its internal structure. In the long-term application process, the coupling effect of heavy loads and the natural environment will still increase the likelihood of water damage to the asphalt pavement.
[0003] Therefore, directly removing water from the asphalt pavement within its width and reducing the likelihood of water entering the asphalt pavement structure has become an important way to improve the asphalt pavement's resistance to water damage. Summary of the Invention
[0004] In view of this, one objective of the present invention is to provide a composition for treating road surface water accumulation, which can directly remove water accumulation within the width of asphalt pavement, alleviate the infiltration of water on the road surface, reduce the probability of water entering the asphalt pavement structure, and thus reduce the adverse effects of water on the pavement structure. Another objective of the present invention is to provide a method for preparing the composition for treating road surface water accumulation.
[0005] One of the objectives of this invention is achieved through the following technical solution:
[0006] A composition for treating surface water on roads, comprising, by weight, a plurality of openable and closable hollow spheres with an inner diameter of 4-10 cm and a wall thickness of 1-3 mm, 10-15 parts of void-filling material, 5-10 parts of water-absorbing material, 6-10 parts of an initiator that releases a large amount of heat upon contact with water, 10-20 parts of heat-storing material, 15-20 parts of heat-insulating material, several cylindrical encapsulation tubes with a diameter of 0.5-2 cm, a wall thickness of 1-2 mm, and a length of 3-4 cm, and an appropriate amount of adhesive;
[0007] The aforementioned multiple openable and closable hollow spheres with an inner diameter of 4-10cm and a wall thickness of 1-3mm are made of 100 parts of porous carrier material;
[0008] The aforementioned columnar encapsulation tubes, each with a diameter of 0.5-2cm, a wall thickness of 1-2mm, and a length of 3-4cm, are made from 5-10 parts of encapsulation material.
[0009] The thermal storage material is evenly encapsulated in several cylindrical encapsulation tubes. The surface of each cylindrical encapsulation tube is bonded with thermal insulation material through an adhesive to form several small spheres with two holes. The surface of each small sphere is bonded with a water-absorbing material layer and an initiator layer through an adhesive from the inside to the outside to form several large spheres. The large spheres are evenly distributed in multiple hollow spheres, and the gaps in the large spheres are filled with a gap-filling material.
[0010] Furthermore, it also includes 3-5 parts of anti-corrosion material, with the anti-corrosion material layer bonded to the inner wall of the hollow sphere by an adhesive.
[0011] Furthermore, by weight, it includes multiple openable and closable hollow spheres with an inner diameter of 4-10cm and a wall thickness of 1-3mm, 13 parts of void filling material, 7 parts of water-absorbing material, 8 parts of initiator that will release a large amount of heat upon contact with water, 15 parts of heat storage material, 18 parts of thermal insulation material, several cylindrical encapsulation tubes with a diameter of 0.5-2cm, a wall thickness of 1-2mm, and a length of 3-4cm, and an appropriate amount of adhesive;
[0012] The aforementioned multiple openable and closable hollow spheres with an inner diameter of 4-10cm and a wall thickness of 1-3mm are made of 100 parts of porous carrier material;
[0013] The aforementioned columnar encapsulation tubes, each with a diameter of 0.5-2cm, a wall thickness of 1-2mm, and a length of 3-4cm, are made from 5-10 parts of encapsulation material.
[0014] The thermal storage material is evenly encapsulated in several cylindrical encapsulation tubes. The surface of each cylindrical encapsulation tube is bonded with thermal insulation material through an adhesive to form several small spheres with two holes. The surface of each small sphere is bonded with a water-absorbing material layer and an initiator layer through an adhesive from the inside to the outside to form several large spheres. The large spheres are evenly distributed in multiple hollow spheres, and the gaps in the large spheres are filled with a gap-filling material.
[0015] Furthermore, the openable and closable hollow sphere is formed by connecting two hemispherical shells with threads.
[0016] Furthermore, the porous carrier material is porous ceramic, zeolite, or sepiolite.
[0017] Furthermore, the initiator that releases a significant amount of heat upon contact with water is reduced iron powder, which has a carbon content of less than 0.01%, a phosphorus and sulfur content of less than 0.03%, and a hydrogen loss of 0.1-0.2%.
[0018] Furthermore, the heat storage material is either butyl stearate or calcium chloride hexahydrate.
[0019] The second objective of this invention is achieved through the following technical solution:
[0020] The method for preparing the above-mentioned composition for treating surface water on roads is characterized by comprising the following steps:
[0021] S1. Take 100 parts by weight of porous carrier material, 10-15 parts of void filling material, 5-10 parts of water-absorbing material, 6-10 parts of initiator that will release heat significantly after contact with water, 10-20 parts of heat storage material, 15-20 parts of thermal insulation material, 5-10 parts of encapsulation material, and an appropriate amount of adhesive.
[0022] The 100 parts of porous carrier material were used to make multiple openable and closable hollow spheres with an inner diameter of 4-10 cm and a wall thickness of 1-3 mm.
[0023] The 5-10 portions of encapsulation material are used to make several cylindrical encapsulation tubes with a diameter of 0.5-2cm, a wall thickness of 1-2mm, and a length of 3-4cm.
[0024] S2. The heat storage material is evenly packaged into several cylindrical packaging tubes. The insulation material is bonded to the surface of each cylindrical packaging tube with an adhesive to obtain several small spheres with two holes. A layer of water-absorbing material is evenly bonded to the surface of the insulation material of each small sphere with an adhesive to obtain several medium spheres with two holes. A layer of initiator is evenly bonded to the surface of each medium sphere with an adhesive to obtain several large spheres. The adhesive of the large spheres is then cured.
[0025] S3. First, open the hollow sphere from step S1. Then, place several large spheres, after the adhesive has cured, evenly into the multiple hollow spheres and fill the gaps completely with the gap filling material. Finally, close the hollow spheres to complete the production.
[0026] Furthermore, step S1 also includes 3-5 parts of anti-corrosion material. The inner walls of multiple hollow spheres are uniformly bonded with anti-corrosion material by an adhesive, and the adhesive is cured before use in step S3.
[0027] Furthermore, the openable and closable hollow sphere is formed by connecting two hemispherical shells with threads.
[0028] The beneficial effects of this invention are:
[0029] The present invention discloses a composition for treating road surface water accumulation. During its operation, the water-absorbing material first adsorbs the accumulated water within the road width through the pores of the porous carrier material. At this time, the initiator releases a large amount of heat upon contact with the water, which accelerates the evaporation and loss of water in the water-absorbing material. Simultaneously, some heat enters the heat storage material, causing a phase change in the heat storage material within the encapsulation material, thereby storing heat. This heat can be continuously released through latent heat, ensuring the continuous loss of water from the water-absorbing material. The anti-corrosion material ensures that the components do not corrode and thus prevent functional failure. The adhesive can bond the different component materials into a whole, and the pore-filling material is used to fill the voids inside the hollow sphere.
[0030] The composition of the present invention can quickly absorb and fix water in the road, and can quickly control the water in the road width area. At the same time, the maximum thermal stability temperature can reach above 50°C, and the heating time can be maintained for about 60 minutes, thereby achieving sustained evaporation of the absorbed water, reducing the water in the road surface structure from entering the road surface structure, and effectively avoiding road damage caused by water erosion.
[0031] The composition of the present invention is mainly applied to the road surface by spreading, which is simple to apply. After use, it can be recycled by heating and drying and refilling the initiator, which has good value for promotion and application.
[0032] The present invention discloses a method for preparing a composition for treating surface water on roads. The steps are simple, easy to implement, and can be mass-produced.
[0033] Other advantages, objectives, and features of the invention will be set forth in part in the description which follows, and in part will be apparent to those skilled in the art from the following examination, or may be learned from practice of the invention. The objectives and other advantages of the invention can be realized and obtained from the following description and claims. Detailed Implementation
[0034] The preferred embodiments of the present invention will now be described in detail. It should be understood that the preferred embodiments are for illustrative purposes only and are not intended to limit the scope of protection of the present invention.
[0035] Unless otherwise specified, all materials used in the following examples are commercially available. Example 1
[0036] A composition for treating surface water on roads, comprising, by weight, a plurality of openable and closable hollow spheres with an inner diameter of 7 cm and a wall thickness of 2 mm, 13 parts of polyester fiber with a fiber length of 5-8 cm, 7 parts of carboxymethyl cellulose grafted with acrylamide, 8 parts of reduced iron powder, 15 parts of butyl stearate, 4 parts of potassium sorbate, 18 parts of polystyrene foam, several cylindrical encapsulation tubes with a diameter of 1 cm, a wall thickness of 1 mm, and a length of 4 cm, and an appropriate amount of adhesive solution;
[0037] The aforementioned multiple openable and closable hollow spheres, each with an inner diameter of 7 cm and a wall thickness of 2 mm, are made from 100 parts of porous ceramic using known conventional techniques. Preferably, two hemispherical shells are first fabricated, and then matching threads are machined along the edges of each hemispherical shell. The two hemispherical shells are then connected by the threads to form an openable and closable hollow sphere.
[0038] Several cylindrical encapsulated tubes with a diameter of 1cm, a wall thickness of 1mm, and a length of 4cm are made of 7 parts of high-temperature resistant PVC. The manufacturing method is a known conventional technology, and the molding temperature of the high-temperature resistant PVC is 160-190℃.
[0039] Carboxymethyl cellulose grafted with acrylamide has a water absorption ratio greater than 500 times.
[0040] The carbon content of reduced iron powder is less than 0.01%, the phosphorus and sulfur content are both less than 0.03%, and the hydrogen loss is 0.1-0.2%.
[0041] Polystyrene foam has a water absorption rate of less than 0.1 kg / m³. 2 The thermal conductivity is less than 0.04 W / m·K.
[0042] The adhesive solution is a spraying liquid made of epoxy resin, polyamide resin and ethanol, with a mass ratio of epoxy resin, polyamide resin and ethanol of 10:5:1.
[0043] In this embodiment, the mass fractions can be various commonly used units of weight measurement such as grams, taels, kilograms, and tons.
[0044] The method for preparing the above-mentioned composition for treating road surface water includes the following steps:
[0045] S1. Take 100 parts by weight of porous ceramic, 13 parts of polyester fiber with a fiber length of 5-8cm, 7 parts of carboxymethyl cellulose grafted acrylamide, 8 parts of reduced iron powder, 15 parts of butyl stearate, 4 parts of potassium sorbate, 18 parts of polystyrene foam, 7 parts of high temperature resistant PVC, and an appropriate amount of adhesive solution.
[0046] One hundred parts of porous ceramic were used to fabricate multiple openable and closable hollow spheres with an inner diameter of 7 cm and a wall thickness of 2 mm, using known conventional techniques. Ideally, two hemispherical shells were first fabricated, and then matching threads were machined along the edges of each hemisphere. The two hemispheres were then connected by these threads to form the openable and closable hollow spheres.
[0047] Seven portions of high-temperature resistant PVC were used to make several cylindrical encapsulated tubes with a diameter of 1 cm, a wall thickness of 1 mm, and a length of 4 cm. The manufacturing method was a known conventional technique, and the molding temperature of the high-temperature resistant PVC was 160-190℃.
[0048] Open multiple hollow spheres separately, and evenly bond potassium sorbate to the inner walls of the hollow spheres with an adhesive solution (the adhesive solution is sprayed onto the inner walls of the hollow spheres; for large-scale production, a pressure spray gun can be used for spraying, and potassium sorbate is sprinkled on the inner walls of the hollow spheres sprayed with adhesive solution). Place the multiple hollow spheres with potassium sorbate bonded to them in a ventilated place at room temperature to allow the adhesive to cure.
[0049] S2. Stearate is evenly packaged into several cylindrical encapsulation tubes. Polystyrene foam is bonded to the surface of each cylindrical encapsulation tube with an adhesive solution to obtain several small spheres with two holes. A layer of carboxymethyl cellulose grafted with acrylamide is evenly bonded to the surface of the insulation material of each small sphere with an adhesive solution to obtain several medium spheres with two holes. A layer of reduced iron powder is evenly bonded to the surface of each medium sphere with an adhesive solution to obtain several large spheres (reduced iron powder is sprinkled on the surface of the adhesive solution). The large spheres are placed in a ventilated place at room temperature to allow the adhesive to cure.
[0050] S3. Then, the several large spheres after the adhesive has cured are evenly placed inside the multiple hollow spheres after the adhesive has cured, and the gaps are fully filled with polyester fiber. Finally, the hollow spheres are closed to complete the production. Example 2
[0051] A composition for treating surface water on roads comprises, by weight, a plurality of openable and closable hollow spheres with an inner diameter of 4 cm and a wall thickness of 1 mm, 10 parts of cotton fibers with a fiber length of 5-8 cm, 5 parts of carboxymethyl cellulose grafted with acrylamide and polyacrylamide, 6 parts of reduced iron powder, 10 parts of calcium chloride hexahydrate, 3 parts of benzoic acid, 15 parts of polyurethane foam, a plurality of columnar encapsulation tubes with a diameter of 0.5 cm, a wall thickness of 2 mm, and a length of 3 cm, and an appropriate amount of adhesive solution.
[0052] The aforementioned multiple openable and closable hollow spheres, each with an inner diameter of 4 cm and a wall thickness of 1 mm, are made from 100 parts of zeolite using known conventional techniques. Preferably, two hemispherical shells are first fabricated, and then matching threads are machined along the edges of the two hemispherical shells. The two hemispherical shells are then connected by the threads to form an openable and closable hollow sphere.
[0053] Several cylindrical encapsulated tubes with a diameter of 0.5cm, a wall thickness of 2mm, and a length of 3cm are made of 5 parts of high-temperature resistant PVC. The manufacturing method is a known conventional technology, and the molding temperature of the high-temperature resistant PVC is 160-190℃.
[0054] Carboxymethyl cellulose grafted with acrylamide and polyacrylamide has a water absorption ratio greater than 500 times.
[0055] The carbon content of reduced iron powder is less than 0.01%, the phosphorus and sulfur content are both less than 0.03%, and the hydrogen loss is 0.1-0.2%.
[0056] Polyurethane foam has a water absorption rate of less than 0.1 kg / m³. 2 The thermal conductivity is less than 0.04 W / m·K.
[0057] The adhesive solution is a spraying liquid made of epoxy resin, polyamide resin and ethanol, with a mass ratio of epoxy resin, polyamide resin and ethanol of 10:5:1.
[0058] In this embodiment, the mass fractions can be various commonly used units of weight measurement such as grams, taels, kilograms, and tons.
[0059] The method for preparing the above-mentioned composition for treating road surface water includes the following steps:
[0060] S1. Take 100 parts by weight of zeolite, 10 parts of cotton fiber with a fiber length of 5-8cm, 5 parts of carboxymethyl cellulose grafted with acrylamide and polyacrylamide, 6 parts of reduced iron powder, 10 parts of calcium chloride hexahydrate, 3 parts of benzoic acid, 15 parts of polyurethane foam, 5 parts of high temperature resistant PVC, and an appropriate amount of adhesive solution.
[0061] As mentioned above, 100 parts of zeolite were used to make multiple openable and closable hollow spheres with an inner diameter of 4 cm, using known conventional techniques. Preferably, two hemispherical shells were first made, and then matching threads were machined along the edges of the two hemispherical shells. The two hemispherical shells were connected by the threads to form an openable and closable hollow sphere.
[0062] Five parts of high-temperature resistant PVC were used to make several cylindrical encapsulated tubes with a diameter of 0.5cm, a wall thickness of 2mm, and a length of 3cm. The manufacturing method was a known conventional technique, and the molding temperature of the high-temperature resistant PVC was 160-190℃.
[0063] Open multiple hollow spheres separately, and evenly bond benzoic acid to the inner walls of the hollow spheres with an adhesive solution (the adhesive solution is sprayed onto the inner walls of the hollow spheres; for large-scale production, a pressure spray gun can be used for spraying, and benzoic acid is sprinkled on the inner walls of the hollow spheres coated with the adhesive solution). Place the hollow spheres with the benzoic acid bonded to them in a ventilated place at room temperature until the adhesive cures.
[0064] S2. Calcium chloride hexahydrate is evenly packaged into several cylindrical packaging tubes. Polyurethane foam is bonded to the surface of each cylindrical packaging tube with an adhesive solution to obtain several small spheres with two holes. A layer of carboxymethyl cellulose grafted with acrylamide and polyacrylamide is evenly bonded to the surface of the insulation material of each small sphere with an adhesive solution to obtain several medium spheres with two holes. A layer of reduced iron powder is evenly bonded to the surface of each medium sphere with an adhesive solution to obtain several large spheres (reduced iron powder is sprinkled on the surface of the adhesive solution). The large spheres are placed in a ventilated place at room temperature to allow the adhesive to cure.
[0065] S3. Then, place several large spheres after the adhesive has cured evenly into several hollow spheres after the adhesive has cured, and fill the gaps with cotton fibers. Finally, close the hollow spheres to complete the production. Example 3
[0066] A composition for treating surface water on roads, comprising, by weight, a plurality of openable and closable hollow spheres with an inner diameter of 10 cm and a wall thickness of 3 mm, 15 parts of polyester fiber with a fiber length of 5-8 cm, 10 parts of carboxymethyl cellulose grafted polyacrylamide, 10 parts of reduced iron powder, 20 parts of butyl stearate, 5 parts of benzoic acid, 20 parts of polystyrene foam, several cylindrical encapsulation tubes with an outer diameter of 2 cm, a wall thickness of 1 mm, and a length of 5 cm, and an appropriate amount of adhesive solution.
[0067] The aforementioned multiple openable and closable hollow spheres, each with an inner diameter of 10 cm and a wall thickness of 3 mm, are made from 100 parts of sepiolite using known conventional techniques. Preferably, two hemispherical shells are first made, and then matching threads are machined along the edges of the two hemispheres, which are then connected by the threads to form an openable and closable hollow sphere.
[0068] Several cylindrical encapsulated tubes with an outer diameter of 2cm, a wall thickness of 1mm, and a length of 5cm are made of 10 parts of high-temperature resistant PVC. The manufacturing method is a known conventional technology, and the molding temperature of the high-temperature resistant PVC is 160-190℃.
[0069] Carboxymethyl cellulose-grafted polyacrylamide has a water absorption ratio greater than 500 times.
[0070] The carbon content of reduced iron powder is less than 0.01%, the phosphorus and sulfur content are both less than 0.03%, and the hydrogen loss is 0.1-0.2%.
[0071] Polystyrene foam has a water absorption rate of less than 0.1 kg / m³. 2 The thermal conductivity is less than 0.04 W / m·K.
[0072] The adhesive solution is a spraying liquid made of epoxy resin, polyamide resin and ethanol, with a mass ratio of epoxy resin, polyamide resin and ethanol of 10:5:1.
[0073] In this embodiment, the mass fractions can be various commonly used units of weight measurement such as grams, taels, kilograms, and tons.
[0074] The method for preparing the above-mentioned composition for treating road surface water includes the following steps:
[0075] S1. Take 100 parts by weight of sepiolite, 15 parts of polyester fiber with a fiber length of 5-8cm, 10 parts of carboxymethyl cellulose grafted polyacrylamide, 10 parts of reduced iron powder, 20 parts of butyl stearate, 5 parts of benzoic acid, 20 parts of polystyrene foam, 10 parts of high temperature resistant PVC, and an appropriate amount of adhesive solution.
[0076] 100 parts of sepiolite were used to make multiple openable and closable hollow spheres with an inner diameter of 10cm and a wall thickness of 3mm. The manufacturing method is a known conventional technique. The better method is to first make two hemispherical shells, and then machine matching threads on the edges of the two hemispherical shells. The two hemispherical shells are connected by threads to form an openable and closable hollow sphere.
[0077] Ten parts of high-temperature resistant PVC were used to make several cylindrical encapsulated tubes with an outer diameter of 2cm, a wall thickness of 1mm, and a length of 5cm. The manufacturing method was a known conventional technique, and the molding temperature of the high-temperature resistant PVC was 160-190℃.
[0078] Open multiple hollow spheres separately, and evenly bond benzoic acid to the inner walls of the hollow spheres with an adhesive solution (the adhesive solution is sprayed onto the inner walls of the hollow spheres; for large-scale production, a pressure spray gun can be used for spraying, and benzoic acid is sprinkled on the inner walls of the hollow spheres coated with the adhesive solution). Place the hollow spheres with the benzoic acid bonded to them in a ventilated place at room temperature until the adhesive cures.
[0079] S2. Stearate is evenly packaged into several cylindrical packaging tubes. Polystyrene foam is bonded to the surface of each cylindrical packaging tube with an adhesive solution to obtain several small spheres with two holes. A layer of carboxymethyl cellulose grafted polyacrylamide is evenly bonded to the surface of the insulation material of each small sphere with an adhesive solution to obtain several medium spheres with two holes. A layer of reduced iron powder is evenly bonded to the surface of each medium sphere with an adhesive solution to obtain several large spheres (reduced iron powder is sprinkled on the surface of the adhesive solution). The large spheres are placed in a ventilated place at room temperature to allow the adhesive to cure.
[0080] S3. Then, the several large spheres after the adhesive has cured are evenly placed inside the multiple hollow spheres after the adhesive has cured, and the gaps are fully filled with polyester fiber. Finally, the hollow spheres are closed to complete the production.
[0081] The performance test results of the compositions prepared in Examples 1 to 3 are shown in Table 1 below.
[0082] Testing items Example 1 Example 2 Example 3 Absorption time (min / 200ml) 8 5 4 Maximum stable temperature (°C) 48 55 60 Heating time (min) 50 62 65
[0083] Note: Water absorption time refers to the time elapsed from the moment the composition comes into contact with 200ml of free water (a cylindrical container with a diameter of 10cm and a height of 5cm) until all water is absorbed, with the test temperature being room temperature (25℃). Maximum stable temperature refers to the constant stable temperature reached after the composition is heated. Heating time refers to the time the composition maintains a stable temperature (the stable temperature range is maximum stable temperature - maximum stable temperature - 15℃).
[0084] Analysis of the data in Table 1 shows that the composition involved in this invention has the effects of temperature control and reducing the free water content of the road surface. The composition absorbs water rapidly, which can quickly control the water accumulation within the road width. At the same time, the maximum thermal stability temperature can reach above 50°C, and the heating time can be maintained for about 60 minutes, thereby achieving sustained evaporation of the adsorbed water, reducing the amount of water entering the pavement structure, and effectively avoiding road damage caused by water erosion.
[0085] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.
Claims
1. A composition for treating surface water on roads, characterized in that: The product comprises, by weight, multiple openable and closable hollow spheres with an inner diameter of 4-10 cm and a wall thickness of 1-3 mm, 10-15 parts of void filling material, 5-10 parts of water-absorbing material, 6-10 parts of an initiator that releases a significant amount of heat upon contact with water, 10-20 parts of heat storage material, 15-20 parts of thermal insulation material, several cylindrical encapsulation tubes with a diameter of 0.5-2 cm, a wall thickness of 1-2 mm, and a length of 3-4 cm, and an appropriate amount of adhesive. The aforementioned multiple openable and closable hollow spheres with an inner diameter of 4-10cm and a wall thickness of 1-3mm are made of 100 parts of porous carrier material; The aforementioned columnar encapsulation tubes, each with a diameter of 0.5-2cm, a wall thickness of 1-2mm, and a length of 3-4cm, are made from 5-10 parts of encapsulation material. The thermal storage material is evenly encapsulated in several cylindrical encapsulation tubes. The surface of each cylindrical encapsulation tube is bonded with thermal insulation material through an adhesive to form several small spheres with two holes. The surface of each small sphere is bonded with a water-absorbing material layer and an initiator layer through an adhesive from the inside to the outside to form several large spheres. The large spheres are evenly distributed in multiple hollow spheres, and the gaps in the large spheres are filled with a gap-filling material.
2. The composition for treating surface water on roads according to claim 1, characterized in that: It also includes 3-5 parts of anti-corrosion material, and the inner wall of the hollow sphere is bonded with a layer of anti-corrosion material by an adhesive.
3. The composition for treating surface water on roads according to claim 1, characterized in that: The product comprises, by weight, multiple openable and closable hollow spheres with an inner diameter of 4-10 cm and a wall thickness of 1-3 mm, 13 parts of void filling material, 7 parts of water-absorbing material, 8 parts of initiator that releases a significant amount of heat upon contact with water, 15 parts of heat storage material, 18 parts of insulation material, several cylindrical encapsulation tubes with a diameter of 0.5-2 cm, a wall thickness of 1-2 mm, and a length of 3-4 cm, and an appropriate amount of adhesive. The aforementioned multiple openable and closable hollow spheres with an inner diameter of 4-10cm and a wall thickness of 1-3mm are made of 100 parts of porous carrier material; The aforementioned columnar encapsulation tubes, each with a diameter of 0.5-2cm, a wall thickness of 1-2mm, and a length of 3-4cm, are made from 5-10 parts of encapsulation material. The thermal storage material is evenly encapsulated in several cylindrical encapsulation tubes. The surface of each cylindrical encapsulation tube is bonded with thermal insulation material through an adhesive to form several small spheres with two holes. The surface of each small sphere is bonded with a water-absorbing material layer and an initiator layer through an adhesive from the inside to the outside to form several large spheres. The large spheres are evenly distributed in multiple hollow spheres, and the gaps in the large spheres are filled with a gap-filling material.
4. A composition for treating surface water on roads according to claim 1, 2, or 3, characterized in that: The openable and closable hollow sphere is formed by connecting two hemispherical shells with threads.
5. The composition for treating road surface waterlogging according to claim 1, characterized in that: The porous carrier material is porous ceramic, zeolite, or sepiolite.
6. The composition for treating road surface waterlogging according to claim 1, characterized in that: The initiator that releases a significant amount of heat upon contact with water is reduced iron powder. The carbon content of the reduced iron powder is less than 0.01%, and the phosphorus and sulfur contents are both less than 0.03%, with a hydrogen loss of 0.1-0.2%.
7. The composition for treating road surface waterlogging according to claim 1, characterized in that: The heat storage material is either butyl stearate or calcium chloride hexahydrate.
8. A method for preparing the composition for treating road surface waterlogging according to any one of claims 1-7, characterized in that: Includes the following steps: S1. Take 100 parts by weight of porous carrier material, 10-15 parts of void filling material, 5-10 parts of water-absorbing material, 6-10 parts of initiator that will release heat significantly after contact with water, 10-20 parts of heat storage material, 15-20 parts of thermal insulation material, 5-10 parts of encapsulation material, and an appropriate amount of adhesive. The 100 parts of porous carrier material were used to make multiple openable and closable hollow spheres with an inner diameter of 4-10 cm and a wall thickness of 1-3 mm. The 5-10 portions of encapsulation material are used to make several cylindrical encapsulation tubes with a diameter of 0.5-2cm, a wall thickness of 1-2mm, and a length of 3-4cm. S2. The heat storage material is evenly packaged into several cylindrical packaging tubes. The insulation material is bonded to the surface of each cylindrical packaging tube with an adhesive to obtain several small spheres with two holes. A layer of water-absorbing material is evenly bonded to the surface of the insulation material of each small sphere with an adhesive to obtain several medium spheres with two holes. A layer of initiator is evenly bonded to the surface of each medium sphere with an adhesive to obtain several large spheres. The adhesive of the large spheres is then cured. S3. First, open the hollow sphere from step S1. Then, place several large spheres, after the adhesive has cured, evenly into the multiple hollow spheres and fill the gaps completely with the gap filling material. Finally, close the hollow spheres to complete the production.
9. The method for preparing the composition for treating road surface waterlogging according to claim 8, characterized in that: Step S1 also includes 3-5 parts of anti-corrosion material. The inner walls of multiple hollow spheres are uniformly bonded with anti-corrosion material by an adhesive, and the adhesive is cured before use in step S3.
10. A method for preparing the composition for treating road surface waterlogging according to claim 8, characterized in that: The openable and closable hollow sphere is formed by connecting two hemispherical shells with threads.