CN107915425B - Compression-resistant modified rubber aggregate macadam paving material and preparation method thereof - Google Patents
Compression-resistant modified rubber aggregate macadam paving material and preparation method thereof Download PDFInfo
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- CN107915425B CN107915425B CN201711185464.4A CN201711185464A CN107915425B CN 107915425 B CN107915425 B CN 107915425B CN 201711185464 A CN201711185464 A CN 201711185464A CN 107915425 B CN107915425 B CN 107915425B
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B26/00—Compositions of mortars, concrete or artificial stone, containing only organic binders, e.g. polymer or resin concrete
- C04B26/02—Macromolecular compounds
- C04B26/10—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- C04B26/14—Polyepoxides
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
- C04B2111/0075—Uses not provided for elsewhere in C04B2111/00 for road construction
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/20—Resistance against chemical, physical or biological attack
- C04B2111/27—Water resistance, i.e. waterproof or water-repellent materials
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/34—Non-shrinking or non-cracking materials
- C04B2111/343—Crack resistant materials
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/76—Use at unusual temperatures, e.g. sub-zero
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/50—Mortars, concrete or artificial stone characterised by specific physical values for the mechanical strength
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Road Paving Structures (AREA)
Abstract
The invention discloses a compression-resistant modified rubber aggregate macadam paving material and a preparation method thereof, wherein the compression-resistant modified rubber aggregate macadam paving material comprises the following raw material components in parts by mass: modified epoxy resin: 1-15%; modified rubber aggregate: 15% -21%; silica gel: 1% -10%; aggregate of broken stones: 40% -65%; ceramic fiber: 10% -15%; curing agent: 0.5% -8%; diluent agent: 0.2-3%, wherein the modified epoxy resin comprises a hydrogenated epoxy resin and a bisphenol A epoxy resin, and the hydrogenated epoxy resin: the mass component ratio of the bisphenol A type epoxy resin is 1: 4-2: 3. The modified rubber aggregate comprises the following components in percentage by mass: 5-12% of mineral micro powder filler, 50-70% of ethylene propylene diene monomer, 5-20% of ethylene-vinyl acetate and 1-5% of active modifier, and blending according to a proportion. The invention provides a compression-resistant modified rubber aggregate macadam paving material, which adopts high-molecular polymer and rubber mixed as a cementing agent to be mixed with macadam according to a certain proportion to form a rubber-macadam composite material, and replaces the traditional asphalt material to be used as a bridge deck paving material.
Description
Technical Field
The invention relates to a compression-resistant modified rubber aggregate macadam paving material, and belongs to the field of pavement structures.
Background
At present, along with the rapid development of Chinese economy and infrastructure construction, a series of large-span steel bridges across rivers, valleys, sea and the like are continuously emerged, and accordingly, the pavement and construction of a steel box girder bridge deck becomes one of key technologies for steel bridge construction. Therefore, a great deal of research is carried out on the bridge deck pavement layer of the steel bridge at home and abroad at present, and some constructive achievements are obtained. According to statistics, currently, there are three main types widely used in steel bridge deck pavement layers in China: (1) double-layer modified SMA; (2) pouring asphalt concrete (GA10) + high-elastic SMA; (3) double-layer American epoxy asphalt concrete. However, considering that the phenomenon of over-limit and overload of vehicles in China is serious, even though the epoxy asphalt mixture with excellent performance and high price is used for bridge deck pavement in practical engineering, the normal service life of the design of a bridge deck pavement layer is far beyond the limit, and the improvement of the performance of the existing pavement material is difficult to break through.
Disclosure of Invention
The purpose is as follows: in order to prolong the normal service life of a bridge deck pavement layer, the invention provides a compression-resistant modified rubber aggregate macadam pavement material, which adopts the blending of high molecular polymer and rubber as a cementing agent and macadam according to a certain proportion to form a rubber-macadam composite material to replace the traditional asphalt material as the bridge deck pavement material.
The technical scheme of the invention is as follows:
the compression-resistant modified rubber aggregate macadam paving material comprises the following raw material components in percentage by mass:
modified epoxy resin: 1 to 15 percent
Modified rubber aggregate: 15 to 21 percent
Silica gel: 1 to 10 percent
Aggregate of broken stones: 40 to 65 percent
Ceramic fiber: 10% -15%;
curing agent: 0.5 to 8 percent
Diluent agent: 0.2 to 3 percent
Wherein the modified epoxy resin includes a hydrogenated epoxy resin and a bisphenol A type epoxy resin, and the hydrogenated epoxy resin: the mass component ratio of the bisphenol A type epoxy resin is 1: 4-2: 3;
the modified rubber aggregate comprises the following components in percentage by mass: 5 to 12 percent of mineral micro powder filler, 50 to 70 percent of ethylene propylene diene monomer, 5 to 20 percent of ethylene-vinyl acetate and 1 to 5 percent of activation modifier are mechanically blended according to the proportion.
Preferably, the mineral micro powder comprises talcum powder, quartz powder, silicon micro powder and mica powder, and the particle size range of the mineral micro powder is 15-25 μm.
Preferably, the length of the ceramic fiber is 1-3 cm.
Preferably, the curing agent is one of polyamine, modified fatty amine or polyamide containing active genes.
Preferably, the diluent is one of ethyl acetate and butyl acetate.
Preferably, the particle size of the crushed stone is 2-5 mm.
Preferably, the activation modifier is a mixture of hexamethylenetetramine and ferric chloride or ferrous chloride.
Preferably, the concrete steps for preparing the compression-resistant modified rubber aggregate macadam pavement material as claimed in claim 1 are as follows:
step 1: preparation of modified epoxy resin
Weighing hydrogenated epoxy resin and bisphenol A epoxy resin according to a proportion, adding the hydrogenated epoxy resin and the bisphenol A epoxy resin into a reaction kettle, stirring and heating the mixture to 100-125 ℃, simultaneously adding a catalyst and a crosslinking agent according to a proportion, controlling the pH value of a reaction system to be 7.0-8.0, and fully reacting for 20-30 minutes under the condition;
step 2: preparation of modified rubber aggregate
Firstly, weighing ethylene propylene diene monomer, ethylene-vinyl acetate and an activation modifier according to a proportion, adding the ethylene propylene diene monomer, the ethylene-vinyl acetate and the activation modifier into a stirring kettle, stirring and mixing for 30-60 minutes at 125-140 ℃, standing and cooling to normal temperature, weighing mineral micro powder filler according to a proportion, adding the mineral micro powder filler, and stirring for 15-30 minutes;
and step 3: weighing the modified epoxy resin prepared in the step (1), the modified rubber aggregate prepared in the step (2), the broken stone aggregate and the ceramic fiber in proportion, sequentially adding the materials into a stirring kettle, mixing and stirring at the temperature of 80-100 ℃ for 20-30 minutes until the materials are uniform, standing and cooling to 45 ℃, then weighing the diluent in proportion, adding the diluent into the stirring kettle, stirring for 20 minutes, finally weighing the silica gel and the curing agent in proportion, sequentially adding the silica gel and the curing agent into the stirring kettle, stirring at normal temperature for 20-40 minutes, and preparing the compression-resistant modified rubber aggregate broken stone paving material.
Preferably, the catalyst in step (1) is a basic catalyst, and comprises one of zirconium dioxide, sodium hydroxide or sodium titanate, and the amount of the catalyst is 3% of the total mass of the modified epoxy resin.
Preferably, the cross-linking agent is one or a mixture of diallyl phthalate, styrene, butyl acrylate and methyl methacrylate, and the amount of the cross-linking agent is 6% of the total mass of the modified epoxy resin.
Has the advantages that: the invention provides a compression-resistant modified rubber aggregate macadam paving material and a preparation method thereof, wherein a high molecular polymer and rubber are blended to be used as a cementing agent and macadam according to a certain proportion to form a rubber-macadam composite material, the rubber-macadam composite material is used as a bridge deck paving material instead of a traditional asphalt material, has good heat resistance, cold resistance and water resistance, is used as a base material of the bridge deck paving material, keeps excellent elasticity within the range of minus 80-180 ℃, can adapt to the swinging, deformation, flex and the like of a steel bridge deck, can reduce the diseases of pavement cracking, deformation, rutting and the like, prolongs the service life of the pavement, has good damping and buffering performance, can reduce noise, improves riding comfort and the like.
Detailed Description
In order to make those skilled in the art better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application are clearly and completely described, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
The compression-resistant modified rubber aggregate macadam paving material comprises the following raw material components in percentage by mass:
modified epoxy resin: 1 to 15 percent
Modified rubber aggregate: 15 to 21 percent
Silica gel: 1 to 10 percent
Aggregate of broken stones: 40 to 65 percent
Ceramic fiber: 10% -15%;
curing agent: 0.5 to 8 percent
Diluent agent: 0.2 to 3 percent
Wherein the modified epoxy resin includes a hydrogenated epoxy resin and a bisphenol A type epoxy resin, and the hydrogenated epoxy resin: the mass component ratio of the bisphenol A type epoxy resin is 1: 4-2: 3;
the modified rubber aggregate comprises the following components in percentage by mass: 5-12% of mineral micro powder filler,
50 to 70 percent of ethylene propylene diene monomer, 5 to 20 percent of ethylene-vinyl acetate and 1 to 5 percent of activation modifier are mechanically blended according to the proportion.
Preferably, the mineral micro powder comprises talcum powder, quartz powder, silicon micro powder and mica powder, and the particle size range of the mineral micro powder is 15-25 μm.
Preferably, the length of the ceramic fiber is 1-3 cm.
Preferably, the curing agent is one of polyamine, modified fatty amine or polyamide containing active genes.
Preferably, the diluent is one of ethyl acetate and butyl acetate.
Preferably, the particle size of the crushed stone is 2-5 mm.
Preferably, the activation modifier is a mixture of hexamethylenetetramine and ferric chloride or ferrous chloride.
Preferably, the concrete steps for preparing the compression-resistant modified rubber aggregate macadam pavement material as claimed in claim 1 are as follows:
step 1: preparation of modified epoxy resin
Weighing hydrogenated epoxy resin and bisphenol A epoxy resin according to a proportion, adding the hydrogenated epoxy resin and the bisphenol A epoxy resin into a reaction kettle, stirring and heating the mixture to 100-125 ℃, simultaneously adding a catalyst and a crosslinking agent according to a proportion, controlling the pH value of a reaction system to be 7.0-8.0, and fully reacting for 20-30 minutes under the condition;
step 2: preparation of modified rubber aggregate
Firstly, weighing ethylene propylene diene monomer, ethylene-vinyl acetate and an activation modifier according to a proportion, adding the ethylene propylene diene monomer, the ethylene-vinyl acetate and the activation modifier into a stirring kettle, stirring and mixing for 30-60 minutes at 125-140 ℃, standing and cooling to normal temperature, weighing mineral micro powder filler according to a proportion, adding the mineral micro powder filler, and stirring for 15-30 minutes;
and step 3: weighing the modified epoxy resin prepared in the step (1), the modified rubber aggregate prepared in the step (2), the broken stone aggregate and the ceramic fiber in proportion, sequentially adding the materials into a stirring kettle, mixing and stirring at the temperature of 80-100 ℃ for 20-30 minutes until the materials are uniform, standing and cooling to 45 ℃, then weighing the diluent in proportion, adding the diluent into the stirring kettle, stirring for 20 minutes, finally weighing the silica gel and the curing agent in proportion, sequentially adding the silica gel and the curing agent into the stirring kettle, stirring at normal temperature for 20-40 minutes, and preparing the compression-resistant modified rubber aggregate broken stone paving material.
Preferably, the catalyst in step (1) is a basic catalyst, and comprises one of zirconium dioxide, sodium hydroxide or sodium titanate, and the amount of the catalyst is 3% of the total mass of the modified epoxy resin.
Preferably, the cross-linking agent is one or a mixture of diallyl phthalate, styrene, butyl acrylate and methyl methacrylate, and the amount of the cross-linking agent is 6% of the total mass of the modified epoxy resin.
Firstly, preferably preparing modified epoxy resin and modified rubber aggregate for later use, and specifically comprising the following steps:
step 1: preparation of modified epoxy resin
Weighing hydrogenated epoxy resin and bisphenol A type epoxy resin (2:3) according to a proportion, adding the mixture into a reaction kettle, stirring and heating the mixture to 100 ℃, simultaneously adding 3 percent (mass fraction) of catalyst (zirconium dioxide) and 6 percent (mass fraction) of cross-linking agent (diallyl phthalate) according to a proportion, controlling the pH value of a reaction system to be 7.5, and fully reacting for 20 minutes under the condition to obtain modified epoxy resin for later use;
step 2: preparation of modified rubber aggregate
Firstly, weighing ethylene propylene diene monomer, ethylene-vinyl acetate and an activation modifier (70% of ethylene propylene diene monomer, 15% of ethylene-vinyl acetate and 3% of hexamethylenetetramine and ferric chloride mixture) in proportion, adding the mixture into a stirring kettle, stirring and mixing the mixture for 30 minutes at the temperature of 125 ℃, standing and cooling the mixture to normal temperature, weighing 12% of mineral micropowder (silicon micropowder) filler, adding the filler and stirring the mixture for 20 minutes to obtain modified rubber aggregate;
example 1
Finished product 1: firstly, weighing 15% of the modified epoxy resin, 15% of the modified rubber aggregate, 50% of the broken stone aggregate and 10% of the ceramic fiber, sequentially adding the materials into a stirring kettle, mixing and stirring the materials at 90 ℃ for 20 minutes until the materials are uniform, standing and cooling the materials to 45 ℃, then weighing 1% of the diluent (ethyl acetate), adding the diluent into the stirring kettle, stirring the materials for 20 minutes, finally weighing 1% of the silica gel and 8% of the curing agent (polyamine), sequentially adding the materials into the stirring kettle, and stirring the materials at normal temperature for 20 to 40 minutes to obtain a finished product 1.
Example 2:
and (3) finished product 2: firstly weighing 8% of the modified epoxy resin, 18% of the modified rubber aggregate, 51% of the broken stone aggregate and 12% of the ceramic fiber, sequentially adding the materials into a stirring kettle, mixing and stirring the materials at 90 ℃ for 30 minutes until the materials are uniform, standing and cooling the materials to 45 ℃, then weighing 2% of the diluent (ethyl acetate), adding the diluent into the stirring kettle, stirring the materials for 20 minutes, finally weighing 8% of the silica gel and 5% of the curing agent (polyamine), sequentially adding the materials into the stirring kettle, and stirring the materials at normal temperature for 30 minutes to obtain a finished product 2.
Example 3:
and (3) finished product: firstly, weighing 1% of the modified epoxy resin, 21% of the modified rubber aggregate, 49.5% of broken stone aggregate and 15% of ceramic fiber, sequentially adding the materials into a stirring kettle, mixing and stirring the materials at 90 ℃ for 30 minutes until the materials are uniform, standing and cooling the materials to 45 ℃, then weighing 3% of diluent (ethyl acetate), adding the diluent (ethyl acetate) into the stirring kettle, stirring the materials for 20 minutes, finally weighing 10% of silica gel and 0.5% of curing agent (polyamine), sequentially adding the materials into the stirring kettle, and stirring the materials at normal temperature for 40 minutes to obtain a finished product 3.
Control group: mixing common rubber powder (ethylene propylene diene monomer rubber particles) and crushed stone (not less than 5mm) according to a mass ratio (9:11) to obtain a control group.
Mechanical property tests are respectively carried out on finished products 1-3 and a control group according to road engineering asphalt and asphalt mixture test procedures (JTJ052-2000) under the temperature conditions of-20 ℃ and 70 ℃, and the results are shown in Table 1:
TABLE 1 comparison table of mechanical properties of finished products 1-3 and comparison group
As can be seen from Table 1, the mechanical properties of the finished products 1-3 at-20 ℃ and 70 ℃ are superior to those of the control group, and the mechanical property of the finished product 3 is the best.
The modified epoxy resin has higher tensile strength, elastic modulus and compressive strength, so that the weather resistance and stability of the rubber aggregate are improved, and the compressive strength of the paving material is enhanced by adopting the ceramic fiber. In addition, most mineral surfaces are rich in active points such as Lewis acid points, Bronsted acid points and the like, and the properties of the mineral micro powder are utilized to be blended and combined with rubber, so that the modulus of the silicone rubber is enhanced, and the mechanical property of the product is improved. And the reinforcing agent can replace fumed silica to be used as the reinforcing agent of the ethylene propylene diene monomer rubber, so that the cost of the product can be greatly reduced. The EVA has good flexibility, impact resistance, environmental stress cracking resistance, good optical performance, low temperature resistance and non-toxic property in a wider temperature range due to the introduction of an acetate monomer on a molecular chain. A certain amount of EVA resin is added into the ethylene propylene diene monomer, so that the cost can be reduced, and the tensile property of the silicone rubber can be improved. According to the invention, the silica gel is adopted to reinforce the skeleton structure of the rubber macadam paving material, so that the problems that the macadam material is easy to fall off and the bonding property between ethylene propylene diene monomer rubber and macadam is poor are solved.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (7)
1. The utility model provides a resistance to compression modified rubber aggregate rubble pavement material which characterized in that: the raw material components and the mass fraction of each component are as follows:
modified epoxy resin: 1 to 15 percent
Modified rubber aggregate: 15 to 21 percent
Silica gel: 1 to 10 percent
Aggregate of broken stones: 40 to 65 percent
Ceramic fiber: 10% -15%;
curing agent: 0.5 to 8 percent
Diluent agent: 0.2 to 3 percent
Wherein the modified epoxy resin includes a hydrogenated epoxy resin and a bisphenol A type epoxy resin, and the hydrogenated epoxy resin: the mass component ratio of the bisphenol A type epoxy resin is 1: 4-2: 3;
the modified rubber aggregate comprises the following components in percentage by mass: mechanically blending 5-12% of mineral micro powder filler, 50-70% of ethylene propylene diene monomer, 5-20% of ethylene-vinyl acetate and 1-5% of activation modifier according to a proportion; the activation modifier is a mixture of hexamethylenetetramine and ferric chloride or ferrous chloride; the preparation method of the modified epoxy resin comprises the following steps: weighing hydrogenated epoxy resin and bisphenol A epoxy resin according to a proportion, adding the hydrogenated epoxy resin and the bisphenol A epoxy resin into a reaction kettle, stirring and heating the mixture to 100-125 ℃, simultaneously adding a catalyst and a crosslinking agent according to a proportion, controlling the pH value of a reaction system to be 7.0-8.0, and fully reacting for 20-30 minutes under the condition; the catalyst is an alkaline catalyst and comprises zirconium dioxide, sodium hydroxide or sodium titanate, and the amount of the catalyst is 3% of the total mass of the modified epoxy resin; the cross-linking agent is one or a mixture of more of diallyl phthalate, styrene, butyl acrylate and methyl methacrylate, and the dosage of the cross-linking agent is 6% of the total mass of the modified epoxy resin.
2. The compression-resistant modified rubber aggregate macadam pavement material as claimed in claim 1, wherein: the mineral micro powder comprises talcum powder, quartz powder, silicon micro powder and mica powder, and the particle size range of the mineral micro powder is 15-25 mu m.
3. The compression-resistant modified rubber aggregate macadam pavement material as claimed in claim 1, wherein: the length of the ceramic fiber is 1-3 cm.
4. The compression-resistant modified rubber aggregate macadam pavement material as claimed in claim 1, wherein: the curing agent is one of polyamine, modified fatty amine or polyamide containing active genes.
5. The compression-resistant modified rubber aggregate macadam pavement material as claimed in claim 1, wherein: the diluent is one of ethyl acetate and butyl acetate.
6. The compression-resistant modified rubber aggregate macadam pavement material as claimed in claim 1, wherein: the particle size of the broken stone is 2-5 mm.
7. The preparation method of the compression-resistant modified rubber aggregate macadam pavement material is characterized by comprising the following steps of: the concrete steps for preparing the compression-resistant modified rubber aggregate macadam pavement material of claim 1 are as follows:
step 1: preparation of modified epoxy resin
Weighing hydrogenated epoxy resin and bisphenol A epoxy resin according to a proportion, adding the hydrogenated epoxy resin and the bisphenol A epoxy resin into a reaction kettle, stirring and heating the mixture to 100-125 ℃, simultaneously adding a catalyst and a crosslinking agent according to a proportion, controlling the pH value of a reaction system to be 7.0-8.0, and fully reacting for 20-30 minutes under the condition;
step 2: preparation of modified rubber aggregate
Firstly, weighing ethylene propylene diene monomer, ethylene-vinyl acetate and an activation modifier according to a proportion, adding the ethylene propylene diene monomer, the ethylene-vinyl acetate and the activation modifier into a stirring kettle, stirring and mixing for 30-60 minutes at 125-140 ℃, standing and cooling to normal temperature, weighing mineral micro powder filler according to a proportion, adding the mineral micro powder filler, and stirring for 15-30 minutes;
and step 3: weighing the modified epoxy resin prepared in the step (1), the modified rubber aggregate prepared in the step (2), the broken stone aggregate and the ceramic fiber in proportion, sequentially adding the materials into a stirring kettle, mixing and stirring at 80-100 ℃ for 20-30 minutes until the materials are uniform, standing and cooling to 45 ℃, then weighing the diluent in proportion, adding the diluent into the stirring kettle, stirring for 20 minutes, finally weighing the silica gel and the curing agent in proportion, sequentially adding the silica gel and the curing agent into the stirring kettle, stirring at normal temperature for 20-40 minutes, and preparing the compression-resistant modified rubber aggregate broken stone paving material.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1532338A (en) * | 2003-03-21 | 2004-09-29 | 丹 王 | Paving material and paving prefabric member, and their producing method |
| CN102173654A (en) * | 2011-02-09 | 2011-09-07 | 武汉兴正源路桥复合材料有限公司 | Cold spraying type epoxy thin bridge deck paving material and preparation method thereof |
| CN106927723A (en) * | 2017-04-11 | 2017-07-07 | 苏交科集团股份有限公司 | A kind of big space cold mixing mixture of epoxy resins and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1532338A (en) * | 2003-03-21 | 2004-09-29 | 丹 王 | Paving material and paving prefabric member, and their producing method |
| CN102173654A (en) * | 2011-02-09 | 2011-09-07 | 武汉兴正源路桥复合材料有限公司 | Cold spraying type epoxy thin bridge deck paving material and preparation method thereof |
| CN106927723A (en) * | 2017-04-11 | 2017-07-07 | 苏交科集团股份有限公司 | A kind of big space cold mixing mixture of epoxy resins and preparation method thereof |
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