CN111691257A - Cold-mixing construction method for colored asphalt - Google Patents
Cold-mixing construction method for colored asphalt Download PDFInfo
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- CN111691257A CN111691257A CN202010541829.8A CN202010541829A CN111691257A CN 111691257 A CN111691257 A CN 111691257A CN 202010541829 A CN202010541829 A CN 202010541829A CN 111691257 A CN111691257 A CN 111691257A
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- asphalt
- mixing
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- cold
- modified epoxy
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C7/00—Coherent pavings made in situ
- E01C7/08—Coherent pavings made in situ made of road-metal and binders
- E01C7/18—Coherent pavings made in situ made of road-metal and binders of road-metal and bituminous binders
- E01C7/20—Binder incorporated in cold state, e.g. natural asphalt
-
- 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
- C04B26/26—Bituminous materials, e.g. tar, pitch
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Structural Engineering (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Road Paving Structures (AREA)
Abstract
The invention discloses a colored asphalt cold mixing construction method, which specifically comprises the following steps: s1: closing a construction site, checking the flatness of a well cover on a road surface, checking and accepting a base layer, finishing the installation of a curb, cleaning a working surface, and attaching a protective curb by using masking paper; s2: weighing the modified epoxy asphalt adhesive A, the modified epoxy asphalt adhesive B and the crushed stone according to the proportion, stirring and mixing the materials on site by a stirrer, placing the materials by a hopper car after mixing, and conveying the mixture to a construction site; s3: and (3) inverting the mixture on the construction pavement, flatly covering the mixture on the construction site, grinding and cleaning the asphalt pavement by using a grinding disc machine after the mixture is solidified, and performing subsequent maintenance for 20-30 hours. The modified epoxy asphalt adhesive A and the modified epoxy asphalt adhesive B can adapt to outdoor environment, and the aging resistance and the durability under the comprehensive action of temperature, ultraviolet rays, rainwater and load are obviously improved.
Description
Technical Field
The invention relates to the technical field of asphalt pavement construction, in particular to a color asphalt cold-mixing construction method.
Background
The colour asphalt pavement is mainly asphalt concrete pavement with pigment, asphalt pavement using petroleum resin (light-colour asphalt) and asphalt pavement with pigment in its mixture, the colour asphalt is light-colour (or colourless) cementing material, and is a kind of many kinds currently used.
Cold-plate cold-paving asphalt mixtures are researched in developed countries abroad in the second and third decades of the 20 th century, most typically in the former soviet union and the united states, and storage mixtures successfully researched by the cold-plate cold-paving asphalt mixtures can be used for road base layers and pavement repair. Cold mix cold laid asphalt mixtures have also been studied in japan, uk, finland, canada, and other countries without much effort. The asphalt binder adopts emulsified asphalt and diluted asphalt. In recent years, cold-mixed cold-paved asphalt is introduced in Germany, is made of special asphalt, can solve all 'small' problems on the surfaces of asphalt and cement concrete, is simple to treat, does not need large-scale equipment, and is an economical and environment-friendly mixture.
Compared with developed countries abroad, the development of the cold-mix asphalt mixture researched and applied in China is lagged. In view of the superiority of cold-mix cold-spread materials and the vigorous marketing of foreign material suppliers in our country, our country has been gradually engaged in developing cold-mix cold-spread asphalt mixtures from the beginning of the last nineties. In recent years, related domestic departments develop various normal-temperature asphalt mixtures in sequence, the normal-temperature asphalt mixtures are successfully applied in engineering practice, remarkable economic and social benefits are obtained, and a large amount of practical experience is accumulated. However, some key technical problems cannot be broken through, and particularly, the development of additives and organic diluents is not greatly improved, so that the cold-mixing and cold-paving asphalt mixture is still not satisfactory to popularize in China.
Disclosure of Invention
The invention aims to provide a colored asphalt cold-mixing construction method which has good aging resistance and durability, the modified epoxy asphalt adhesive A and the modified epoxy asphalt adhesive B can adapt to outdoor environment, the aging resistance and the durability under the comprehensive action of temperature, ultraviolet rays, rainwater and load are obviously improved, and the problems that some key technical problems cannot be broken through, particularly, the research and development of additives and organic diluents are not advanced greatly, and the popularization of cold-mixing cold-paving asphalt mixture in China is still unsatisfactory are solved.
The colored asphalt cold mixing construction method provided by the embodiment of the invention specifically comprises the following steps:
s1: closing a construction site, checking the flatness of a well cover on a road surface, checking and accepting a base layer, finishing the installation of a curb, cleaning a working surface, and attaching a protective curb by using masking paper;
s2: weighing the modified epoxy asphalt adhesive A, the modified epoxy asphalt adhesive B and the crushed stone according to the proportion, stirring and mixing the materials on site by a stirrer, placing the materials by a hopper car after mixing, and conveying the mixture to a construction site;
s3: inverting the mixture on a construction pavement, flatly covering the mixture on the construction site, grinding and cleaning the asphalt pavement by using a grinding disc machine after the mixture is solidified, and performing subsequent maintenance for 20-30 hours;
s4: after the maintenance is finished, uniformly spraying the spray surface protection adhesive on the asphalt pavement by an airless sprayer;
s5: after spraying, performing joint cutting, filling and painting treatment on the asphalt pavement, then maintaining for 30-50h, tearing off the decorative paper on the kerbstone, and finishing the color asphalt cold-mixing construction of the asphalt pavement.
On the basis of the scheme, before the cold mixing construction of the colored asphalt, oil brushing treatment is carried out on the stirrer, the trolley, the millstone machine and the airless sprayer, and the oil brushing treatment is to brush an edible oil protective layer.
On the basis of the scheme, in S2, the mixing ratio of the modified epoxy asphalt adhesive A, the modified epoxy asphalt adhesive B and the crushed stone is 3-5: 1-1.5:90-100.
On the basis of the scheme, the particle size of the crushed stone is 5-10 mm.
On the basis of the scheme, in S2, the stirring place of the mixture is a shade place, and the exposure and the rain are forbidden under the sun.
On the basis of the scheme, the crushed stone comprises crushed stone and pigment, and the proportion of the crushed stone to the pigment is 20-30: 1.
On the basis of the scheme, the pigment is a metal oxide, and the metal oxide is any one of titanium dioxide, chromium oxide and ferric oxide.
Compared with the prior art, the invention has the beneficial effects that:
1. the modified epoxy asphalt adhesive A and the modified epoxy asphalt adhesive B can adapt to outdoor environment, and the aging resistance and the durability under the comprehensive action of temperature, ultraviolet rays, rainwater and load are obviously improved;
2. the cold mixing is environment-friendly, the construction is convenient, the Volatile Organic Compound (VOC) content is lower than 0.1 percent, and manual or mechanical paving can be respectively adopted on site according to the size of a pavement to be paved;
3. the color durability is good, and the modified epoxy asphalt adhesive A and the modified epoxy asphalt adhesive B can greatly improve the adhesion capability of the pigment, so that the color durability of the colored asphalt pavement is ensured.
Detailed Description
The present invention will be described in further detail with reference to specific embodiments for further understanding of the features and technical means of the invention and the functions achieved.
Example 1
The embodiment provides a color asphalt cold mixing construction method, which specifically comprises the following steps:
s1: closing a construction site, checking the flatness of a well cover on a road surface, checking and accepting a base layer, finishing the installation of a curb, cleaning a working surface, and attaching a protective curb by using masking paper;
s2: weighing the modified epoxy asphalt adhesive A, the modified epoxy asphalt adhesive B and the crushed stone according to the proportion, stirring and mixing the materials on site by a stirrer, placing the materials by a hopper car after mixing, and conveying the mixture to a construction site;
s3: inverting the mixture on a construction pavement, flatly covering the mixture on the construction site, grinding and cleaning the asphalt pavement by using a grinding disc machine after the mixture is solidified, and performing subsequent maintenance for 20 hours;
s4: after the maintenance is finished, uniformly spraying the spray surface protection adhesive on the asphalt pavement by an airless sprayer;
s5: after spraying, performing joint cutting, filling and sealing and paint spraying on the asphalt pavement, then maintaining for 30h, and tearing off the decorative paper on the kerbstone to finish the color asphalt cold-mixing construction of the asphalt pavement.
In S2, the mixing ratio of the modified epoxy asphalt adhesive a, the modified epoxy asphalt adhesive B, and the crushed stone is 3: 1:90.
The particle diameter of the crushed stone is 5 mm.
The crushed stone comprises crushed stone and pigment, and the proportion of the crushed stone to the pigment is 20: 1.
The pigment is a metal oxide, and the metal oxide is titanium dioxide.
Example 2
The embodiment provides a color asphalt cold mixing construction method, which specifically comprises the following steps:
s1: closing a construction site, checking the flatness of a well cover on a road surface, checking and accepting a base layer, finishing the installation of a curb, cleaning a working surface, and attaching a protective curb by using masking paper;
s2: weighing the modified epoxy asphalt adhesive A, the modified epoxy asphalt adhesive B and the crushed stone according to the proportion, stirring and mixing the materials on site by a stirrer, placing the materials by a hopper car after mixing, and conveying the mixture to a construction site;
s3: inverting the mixture on a construction pavement, flatly covering the mixture on the construction site, grinding and cleaning the asphalt pavement by using a grinding disc machine after the mixture is solidified, and performing subsequent maintenance for 24 hours;
s4: after the maintenance is finished, uniformly spraying the spray surface protection adhesive on the asphalt pavement by an airless sprayer;
s5: after spraying, performing joint cutting, filling and sealing and paint spraying on the asphalt pavement, then maintaining for 35 hours, and tearing off the decorative paper on the kerbstone to finish the color asphalt cold-mixing construction of the asphalt pavement.
In S2, the mixing ratio of the modified epoxy asphalt adhesive a, the modified epoxy asphalt adhesive B, and the crushed stone is 3: 1.5:90.
The particle size of the crushed stone is 6 mm.
The crushed stone comprises crushed stone and pigment, and the proportion of the crushed stone to the pigment is 22: 1.
The pigment is a metal oxide, and the metal oxide is titanium dioxide.
Example 3
The embodiment provides a color asphalt cold mixing construction method, which specifically comprises the following steps:
s1: closing a construction site, checking the flatness of a well cover on a road surface, checking and accepting a base layer, finishing the installation of a curb, cleaning a working surface, and attaching a protective curb by using masking paper;
s2: weighing the modified epoxy asphalt adhesive A, the modified epoxy asphalt adhesive B and the crushed stone according to the proportion, stirring and mixing the materials on site by a stirrer, placing the materials by a hopper car after mixing, and conveying the mixture to a construction site;
s3: inverting the mixture on a construction pavement, flatly covering the mixture on the construction site, grinding and cleaning the asphalt pavement by using a grinding disc machine after the mixture is solidified, and performing subsequent maintenance for 26 hours;
s4: after the maintenance is finished, uniformly spraying the spray surface protection adhesive on the asphalt pavement by an airless sprayer;
s5: after spraying, performing joint cutting, filling and sealing and paint spraying on the asphalt pavement, then maintaining for 40h, and tearing off the decorative paper on the kerbstone to finish the color asphalt cold-mixing construction of the asphalt pavement.
In S2, the mixing ratio of the modified epoxy asphalt adhesive a, the modified epoxy asphalt adhesive B, and the crushed stone is 4: 1:95.
The particle size of the crushed stone is 7 mm.
The crushed stone comprises crushed stone and pigment, and the proportion of the crushed stone to the pigment is 25: 1.
The pigment is metal oxide, and the metal oxide is chromium oxide.
Example 4
The embodiment provides a color asphalt cold mixing construction method, which specifically comprises the following steps:
s1: closing a construction site, checking the flatness of a well cover on a road surface, checking and accepting a base layer, finishing the installation of a curb, cleaning a working surface, and attaching a protective curb by using masking paper;
s2: weighing the modified epoxy asphalt adhesive A, the modified epoxy asphalt adhesive B and the crushed stone according to the proportion, stirring and mixing the materials on site by a stirrer, placing the materials by a hopper car after mixing, and conveying the mixture to a construction site;
s3: inverting the mixture on a construction pavement, flatly covering the mixture on the construction site, grinding and cleaning the asphalt pavement by using a grinding disc machine after the mixture is solidified, and subsequently maintaining for 28 hours;
s4: after the maintenance is finished, uniformly spraying the spray surface protection adhesive on the asphalt pavement by an airless sprayer;
s5: after spraying, performing joint cutting, filling and sealing and paint spraying on the asphalt pavement, then maintaining for 45 hours, and tearing off the decorative paper on the kerbstone to finish the color asphalt cold-mixing construction of the asphalt pavement.
In S2, the mixing ratio of the modified epoxy asphalt adhesive a, the modified epoxy asphalt adhesive B, and the crushed stone is 4: 1.5:95.
The particle diameter of the crushed stone is 8 mm.
The crushed stone comprises crushed stone and pigment, and the proportion of the crushed stone to the pigment is 28: 1.
The pigment is a metal oxide, and the metal oxide is ferric oxide.
Example 5
The embodiment provides a color asphalt cold mixing construction method, which specifically comprises the following steps:
s1: closing a construction site, checking the flatness of a well cover on a road surface, checking and accepting a base layer, finishing the installation of a curb, cleaning a working surface, and attaching a protective curb by using masking paper;
s2: weighing the modified epoxy asphalt adhesive A, the modified epoxy asphalt adhesive B and the crushed stone according to the proportion, stirring and mixing the materials on site by a stirrer, placing the materials by a hopper car after mixing, and conveying the mixture to a construction site;
s3: inverting the mixture on a construction pavement, flatly covering the mixture on the construction site, grinding and cleaning the asphalt pavement by using a grinding disc machine after the mixture is solidified, and performing subsequent maintenance for 30 hours;
s4: after the maintenance is finished, uniformly spraying the spray surface protection adhesive on the asphalt pavement by an airless sprayer;
s5: after spraying, performing joint cutting, filling and sealing and paint spraying on the asphalt pavement, then maintaining for 50h, and tearing off the decorative paper on the kerbstone to finish the color asphalt cold-mixing construction of the asphalt pavement.
In S2, the mixing ratio of the modified epoxy asphalt adhesive a, the modified epoxy asphalt adhesive B, and the crushed stone is 5: 1.5:100.
The particle size of the crushed stone is 10 mm.
The crushed stone comprises crushed stone and pigment, and the proportion of the crushed stone to the pigment is 30: 1.
The pigment is a metal oxide, and the metal oxide is titanium dioxide.
Comparative example
The colored asphalt mixtures of examples 1-5 were tested according to the following test setup:
from the above table, it can be seen that: the color asphalt cold-mixing construction method has the advantages that the color asphalt cold-mixing mixture is good in aging resistance and durability, the modified epoxy asphalt adhesive A and the modified epoxy asphalt adhesive B can adapt to outdoor environment, the aging resistance and the durability under the comprehensive action of temperature, ultraviolet rays, rainwater and load are remarkably improved, the cold mixing is environment-friendly and convenient to construct, the content of Volatile Organic Compounds (VOC) is lower than 0.1%, manual or mechanical paving can be respectively adopted according to the size of a pavement to be paved on site, the color durability is good, and the adhesion capacity of pigments can be greatly improved by the modified epoxy asphalt adhesive A and the modified epoxy asphalt adhesive B, so that the color durability of a color asphalt pavement is ensured.
Examples of the experiments
The color asphalt mixture is successfully applied to a plurality of projects of Shenzhen, the hot-mixed color asphalt mixture taking light-color asphalt as a base material is applied to the Longhua sheep Taishan green road project and built in 2017, the color durability is good so far, the modified epoxy asphalt adhesive A and the modified epoxy asphalt adhesive B can greatly improve the adhesion capability of pigments, so that the color durability of a color asphalt pavement is ensured, the cold mixing is environment-friendly, the construction is convenient and fast, the predetermined construction period is finished in 10 months, the completion period only takes 6 months, and the construction progress is accelerated.
The invention is not described in detail, but is well known to those skilled in the art.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. The color asphalt cold mixing construction method is characterized by comprising the following steps:
s1: closing a construction site, checking the flatness of a well cover on a road surface, checking and accepting a base layer, finishing the installation of a curb, cleaning a working surface, and attaching a protective curb by using masking paper;
s2: weighing the modified epoxy asphalt adhesive A, the modified epoxy asphalt adhesive B and the crushed stone according to the proportion, stirring and mixing the materials on site by a stirrer, placing the materials by a hopper car after mixing, and conveying the mixture to a construction site;
s3: inverting the mixture on a construction pavement, flatly covering the mixture on the construction site, grinding and cleaning the asphalt pavement by using a grinding disc machine after the mixture is solidified, and performing subsequent maintenance for 20-30 hours;
s4: after the maintenance is finished, uniformly spraying the spray surface protection adhesive on the asphalt pavement by an airless sprayer;
s5: after spraying, performing joint cutting, filling and painting treatment on the asphalt pavement, then maintaining for 30-50h, tearing off the decorative paper on the kerbstone, and finishing the color asphalt cold-mixing construction of the asphalt pavement.
2. The colored asphalt cold-mixing construction method according to claim 1, characterized in that: before cold mixing construction of the colored asphalt, oil brushing treatment is carried out on a stirrer, a trolley, a millstone machine and an airless sprayer, and the oil brushing treatment is to brush an edible oil protective layer.
3. The colored asphalt cold-mix construction method according to claim 2, characterized in that: in S2, the mixing ratio of the modified epoxy asphalt adhesive A, the modified epoxy asphalt adhesive B and the crushed stone is 3-5: 1-1.5:90-100.
4. The colored asphalt cold-mix construction method according to claim 3, characterized in that: the particle diameter of the crushed stone is 5-10 mm.
5. The colored asphalt cold-mixing construction method according to claim 4, characterized in that: at S2, the mixture is stirred in a cool place and is not exposed to sunlight or rain.
6. The colored asphalt cold-mixing construction method according to claim 5, characterized in that: the crushed stone comprises crushed stone and pigment, and the proportion of the crushed stone to the pigment is 20-30: 1.
7. The colored asphalt cold-mixing construction method according to claim 6, characterized in that: the pigment is a metal oxide, and the metal oxide is any one of titanium dioxide, chromium oxide and ferric oxide.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010541829.8A CN111691257A (en) | 2020-06-15 | 2020-06-15 | Cold-mixing construction method for colored asphalt |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010541829.8A CN111691257A (en) | 2020-06-15 | 2020-06-15 | Cold-mixing construction method for colored asphalt |
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| CN111691257A true CN111691257A (en) | 2020-09-22 |
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| CN202010541829.8A Pending CN111691257A (en) | 2020-06-15 | 2020-06-15 | Cold-mixing construction method for colored asphalt |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61157521A (en) * | 1984-12-28 | 1986-07-17 | Asahi Denka Kogyo Kk | Curable epoxy resin composition |
| CN104446155A (en) * | 2014-10-09 | 2015-03-25 | 王利泉 | Method for preparing cold-mixed cold-laid asphalt mixture by utilizing papermaking waste liquor and construction method |
| CN106316221A (en) * | 2016-08-22 | 2017-01-11 | 苏交科集团股份有限公司 | Rubber cold-mixed epoxy asphalt mixture used for repairing cracks and preparation method |
| CN108797260A (en) * | 2018-05-28 | 2018-11-13 | 南通福伦利新材料有限公司 | A kind of construction technology of Colorful Asphalt Pavement |
| CN109456011A (en) * | 2018-12-29 | 2019-03-12 | 许昌腾飞建设工程集团有限公司 | A kind of colored thin layer paving material and its application method for bituminous pavement |
-
2020
- 2020-06-15 CN CN202010541829.8A patent/CN111691257A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61157521A (en) * | 1984-12-28 | 1986-07-17 | Asahi Denka Kogyo Kk | Curable epoxy resin composition |
| CN104446155A (en) * | 2014-10-09 | 2015-03-25 | 王利泉 | Method for preparing cold-mixed cold-laid asphalt mixture by utilizing papermaking waste liquor and construction method |
| CN106316221A (en) * | 2016-08-22 | 2017-01-11 | 苏交科集团股份有限公司 | Rubber cold-mixed epoxy asphalt mixture used for repairing cracks and preparation method |
| CN108797260A (en) * | 2018-05-28 | 2018-11-13 | 南通福伦利新材料有限公司 | A kind of construction technology of Colorful Asphalt Pavement |
| CN109456011A (en) * | 2018-12-29 | 2019-03-12 | 许昌腾飞建设工程集团有限公司 | A kind of colored thin layer paving material and its application method for bituminous pavement |
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Application publication date: 20200922 |
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