CN105801011A - Hot-recycling asphalt mixture containing non-traditional oil and preparation method of hot-recycling asphalt mixture - Google Patents
Hot-recycling asphalt mixture containing non-traditional oil and preparation method of hot-recycling asphalt mixture Download PDFInfo
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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
- C04B26/26—Bituminous materials, e.g. tar, pitch
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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
- C04B20/00—Use of materials as fillers for mortars, concrete or artificial stone according to more than one of groups C04B14/00 - C04B18/00 and characterised by shape or grain distribution; Treatment of materials according to more than one of the groups C04B14/00 - C04B18/00 specially adapted to enhance their filling properties in mortars, concrete or artificial stone; Expanding or defibrillating materials
- C04B20/0076—Use of materials as fillers for mortars, concrete or artificial stone according to more than one of groups C04B14/00 - C04B18/00 and characterised by shape or grain distribution; Treatment of materials according to more than one of the groups C04B14/00 - C04B18/00 specially adapted to enhance their filling properties in mortars, concrete or artificial stone; Expanding or defibrillating materials characterised by the grain distribution
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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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Abstract
The invention belongs to the field of utilization of non-traditional resources in the field of environmental protection and discloses a hot-recycling asphalt mixture containing non-traditional oil. The hot-recycling asphalt mixture is characterized by being prepared from a waste asphalt mixture, new aggregate, new asphalt and a non-traditional oil regeneration agent, wherein the waste asphalt mixture accounts for 30%-60% of the total mass of the waste asphalt mixture, the new aggregate, the new asphalt and the non-traditional oil regeneration agent, the new aggregate accounts for 38%-68% of the total mass of the waste asphalt mixture, the new aggregate, the new asphalt and the non-traditional oil regeneration agent, and the new asphalt accounts for 1%-2% of the total mass of the waste asphalt mixture, the new aggregate, the new asphalt and the non-traditional oil regeneration agent; the non-traditional oil regeneration agent accounts for 1%-3.5% of the mass of waste asphalt in the waste asphalt mixture. The implementing process of the mixture is simple, the regeneration effect is good, and the hot-recycling asphalt mixture is economical and environment-friendly.
Description
Technical field
The invention belongs to non-traditional resources in field of Environment Protection and utilize field, be specifically related to a kind of non-traditional oils and fats heat regeneration asphalt mixture and preparation method thereof.
Background technology
Non-traditional resources refers to the resource of not yet discovery or not yet industrialized developing utilization under the restriction of economy, technology and environmental factors.Along with the development of science and technology, the exploitation dynamics of natural resources is also being continued to increase by the mankind, and traditional resource is as non-renewable resources, and its reserves are close to exhausted, and the exploitation of non-traditional resources become the important means alleviating shortage of resources present situation.
Asphalt material is widely used in high-grade highway construction because of the pavement performance of its excellence.But, along with the fast development of highway communication cause, the asphalt consumption as main road-making material is huge, and Colophonium and building stones in asphalt consume in a large number, cause natural resources in short supply.On the other hand, bituminous paving is because being produced various disease by factor effects such as vehicular load, illumination, rainwater；Flow heavily loaded, big, channelization Modern Traffic, more exacerbate the destruction on road surface.According to statistics, China is every year because waste asphalt mixture produced by pavement recapping is up to 1,200,000,000 tons, and it contains the non-renewable resources such as substantial amounts of building stones and Colophonium, and giving it up will be the significant wastage to resource, and can serious pollution of ecological environment.Therefore, the regeneration of waste asphalt mixture has significant society, economy and environmental benefit.At present, the main method that Recycling Old Asphalt Mixture utilizes is to be added thereto to bitumen regenerant.It is estimated that China's required bitumen regenerant about 3,000,000 tons every year, and existing regenerative agent is mostly expensive, regeneration effect and working security also have much room for improvement.
Non-traditional oils and fats refers to the oils and fats being unable to reach original use standard, can by sources be divided into industry and life two big classes, and the former utilization obstacle is better, and the latter's Utilizing question is then comparatively prominent.China consumes edible oil about 23,000,000 tons every year, thus produces about 6,000,000 tons of non-traditional oils and fatss, wherein about 4,000,000 tons can as resource recycling.Research shows, the oil that non-traditional oils is similar in Colophonium divides, and can be used for the modified of Colophonium and regeneration, and it has relatively low viscosity and better thermostability, it is ensured that the effect of regeneration and the safety of construction.
Currently, domestic and international Regenerative Technique of Asphalt Mixture is broadly divided into hot recycling and cold renewal two kinds.The advantages such as cold recycling technology has and economizes on resources, and reduces and pollutes, easy construction, but its compound regeneration effect is poor, the decking and rolling time is long, therefore employing asphalt mixture heat regeneration technology mostly in practical application.
Chinese patent CN101654347A " a kind of hot in-plant reclaimed asphalt mixture " propose with waste asphalt mixture, newly gather materials, heat regeneration asphalt mixture prepared by new Colophonium, filler and ARA regenerative agent, but ARA regenerative agent is expensive, and its flash-point is relatively low, working security is poor.Chinese patent CN101041574A " old asphalt pavement regeneration additive and the method preparing asphalt pavement regeneration mixture thereof " proposes with Oleum Verniciae fordii, mineral oil, rosin resin prepares regenerative agent so that asphalt pavement mixture regenerates, but the high temperature performance of mineral oil regeneration asphalt is all undesirable, and Oleum Verniciae fordii has certain toxicity, it is detrimental to health.
Summary of the invention
It is an object of the invention to provide a kind of non-traditional oils and fats heat regeneration asphalt mixture and preparation method thereof, this compound implementing process is simple, favorable regeneration effect, economic and environment-friendly.
For achieving the above object, the technical solution adopted in the present invention is: a kind of non-traditional oils and fats heat regeneration asphalt mixture, it is characterized in that, by waste asphalt mixture, newly gather materials, new Colophonium and non-traditional oils and fats regenerative agent are prepared from (by mixing again, heating, blending craft), waste asphalt mixture, newly gather materials, new Colophonium accounts for waste asphalt mixture, newly gather materials, the percent of new Colophonium and non-traditional oils and fats regenerative agent gross mass is: waste asphalt mixture 30～60%, newly gather materials 38～68%, new Colophonium 1～2%, non-traditional oils and fats regenerative agent accounts in waste asphalt mixture the 1～3.5% of Bituminous concrete surface quality.
Described waste asphalt mixture is to be produced by maintenance of surface or maintenance process, processes through broken, sieving technology and obtains.Specifically comprises the processes of: adopt rolling disintegrator that waste asphalt mixture is crushed, old material screen after broken is divided into more than 25mm, three kinds of specifications of 25～12mm and below 12mm by the screening plant carried by disintegrating machine, wherein the old material more than 25mm cannot directly use because of oversize, return disintegrating machine to continue to be crushed to appropriate size, the old material of 25～12mm and below 12mm is stacked respectively, in order to adjust new grating.
Described newly gathering materials includes coarse aggregate, fine aggregate and filler, coarse aggregate, fine aggregate, filler the consumption requirement according to " bituminous pavement design for highway specification " (JTGD50-2006), carry out final gradation.
The described middle coarse aggregate that newly gathers materials refers to the one in the rubble of particle diameter >=2.36mm, crushing gravel, graded gravel, slag etc..
The described middle fine aggregate that newly gathers materials refers to that particle diameter is less than the one in the natural sand of 2.36mm, artificial sand, aggregate chips etc..
The described middle filler that newly gathers materials refers to that particle diameter is less than the one in the breeze of 0.075mm, cement, slaked lime, flyash etc..
Described new Colophonium refers to AH-50 heavy traffic paving asphalt [in can adopting the supply of sea Colophonium (Taizhou) company limited].
Described non-traditional oils and fats regenerative agent is to be processed by the waste grease of " oil " containing 40～65wt% low viscosity (Unsaturatcd fatty acid glycerides) with 35～60wt% high viscosity " fat " (saturated fatty acid glyceride) through filtration, dehydration, deodorization process and obtain.
The preparation method of above-mentioned a kind of non-traditional oils and fats heat regeneration asphalt mixture, it is characterised in that it comprises the steps:
1) by the waste asphalt mixture processed through broken, screening, newly gather materials the baking oven being respectively placed in 105 DEG C ± 5 DEG C is dried to constant weight (generally no less than 4～6h)；
And waste asphalt mixture sample analysis is gone out: the weight/mass percentage composition of waste asphalt mixture medium pitch；
2) by waste asphalt mixture, newly gather materials, new Colophonium accounts for waste asphalt mixture, newly gather materials, the percent of new Colophonium and non-traditional oils and fats regenerative agent gross mass is: waste asphalt mixture 30～60%, newly gather materials 38～68%, new Colophonium 1～2%, non-traditional oils and fats regenerative agent accounts for the 1～3.5% of waste asphalt mixture medium pitch quality, chooses waste asphalt mixture, newly gathers materials, new Colophonium and non-traditional oils and fats regenerative agent；
Described newly gathering materials includes coarse aggregate, fine aggregate and filler；
And by the quality of asphalt mixture design grating weighing waste asphalt mixture and newly gather materials middle coarse aggregate, fine aggregate, and tentatively mix；Filler after drying individually weighs deposits (filler weighs) by asphalt mixture design grating；
3) waste asphalt mixture tentatively mixed and the coarse aggregate in newly gathering materials, fine aggregate are put into baking oven and be incubated at least 4h at 175 DEG C；
4) by non-traditional oils and fats regenerative agent and new Colophonium at 160～170 DEG C of mix homogeneously, incorporation time 15～30min, the new Colophonium containing regenerative agent is obtained；
5) by step 3) waste asphalt mixture of good heat insulation and the coarse aggregate in newly gathering materials, fine aggregate be placed in preheated mixing machine, and add the new Colophonium containing regenerative agent, start mixing machine mix 90s；
6) suspend mix, add the filler dried, continue mix 90s extremely uniformly, and make asphalt be maintained in the mix temperature range of requirement, obtain non-traditional oils and fats heat regeneration asphalt mixture.
Using non-traditional oils and fats as regenerative agent, waste asphalt mixture is regenerated.Recycling Old Asphalt Mixture it is critical only that the regeneration of aged asphalt in compound.Component mediation principle according to asphalt-regenerating, by the component of aged asphalt and new Colophonium is compared, adds the component of its disappearance in aged asphalt to carry out component mediation, can realize the regeneration of aged asphalt.Compared with new Colophonium, the aromatic components in aged asphalt component significantly reduces.Non-traditional oils and fats be mainly composed of fatty acid, belong to aromatic oil and divide, therefore, the regeneration that non-traditional oils and fats is applied to aged asphalt is feasible in theory.
Using treated non-traditional oils and fats as regenerative agent, can there is the pavement performance of efficient recovery compound, it is achieved the regeneration of waste asphalt mixture；Utilize non-traditional oils and fats, waste asphalt mixture the like waste in a large number, it is achieved that the recycling of waste resource, solve because of problems such as its mishandling caused environmental pollutions；Make full use of gathering materials and Colophonium in waste asphalt mixture, decrease the consumption newly gathered materials with new Colophonium, decrease the application of chemical regenerant simultaneously, be effectively saved natural resources, reduce production cost.
In sum, non-traditional oils and fats heat regeneration asphalt mixture of the present invention is under the premise ensureing regenerating mixture performance, using non-traditional oils and fats as regenerative agent, by the component of asphalt-regenerating mediation principle, it is achieved that the regeneration of waste asphalt mixture.
The method have the advantages that
1. the flash-point of non-traditional oils and fats regenerative agent is high, viscosity is low, heat-resist, can effective soft pitch, improve its viscoelasticity and rheological characteristic, the pavement performance of recovery compound.
2. adopting hot in-plant reclaimed mode to carry out Recycling Old Asphalt Mixture, production technology is simple, easy to implement, favorable regeneration effect.
3. achieve waste asphalt mixture and the recycling of non-traditional oils and fats, it is effectively saved Colophonium and the natural resources such as gather materials, decrease because of problems such as its mishandling caused environmental pollutions, reduce production cost, reach the purpose of the treatment of wastes with processes of wastes against one another, there is significant social economic environment benefit.
Detailed description of the invention
In order to be more fully understood that the present invention, present disclosure is expanded on further below in conjunction with embodiment, but present disclosure is not limited solely to the following examples.
Embodiment 1:
Non-traditional oils and fats hot recycling AC-25 asphalt, is applied to cutting optimal, by waste asphalt mixture, newly gather materials, new Colophonium and non-traditional oils and fats regenerative agent are prepared from (by mixing again, heating, blending craft).Waste asphalt mixture accounts for waste asphalt mixture, newly gathers materials, new Colophonium and non-traditional oils and fats regenerative agent gross mass 50%, new Colophonium accounts for waste asphalt mixture, newly gathers materials, new Colophonium and non-traditional oils and fats regenerative agent gross mass 1.5%, non-traditional oils and fats regenerative agent accounts for the 3% of waste asphalt mixture medium pitch quality.
Requirement according to " bituminous pavement design for highway specification " (JTGD50-2006), carries out final gradation to waste asphalt mixture, newly gather materials middle coarse aggregate, fine aggregate and filler, and its formate gradation composition is in Table 1.
Table 1AC-25 screening and formate gradation composition
Described waste asphalt mixture is that the waste material that road surface cutting optimal revision produces processes through broken, sieving technology and obtains.
Described newly gathering materials includes coarse aggregate, fine aggregate and limestone mineral powder (filler).
Described new Colophonium is the waste asphalt AH-50 Colophonium with label same product source, i.e. AH-50 heavy traffic paving asphalt [in can adopting the supply of sea Colophonium (Taizhou) company limited].
Described non-traditional oils and fats regenerative agent is to be processed by the waste grease of " oil " containing 55% low viscosity (Unsaturatcd fatty acid glycerides) with 45% high viscosity " fat " (saturated fatty acid glyceride) through filtration, dehydration, deodorization process and obtain.
The preparation method of above-mentioned a kind of non-traditional oils and fats heat regeneration asphalt mixture, it comprises the steps:
1) by the waste asphalt mixture processed through broken, screening, newly gather materials the baking oven being respectively placed in 105 DEG C ± 5 DEG C is dried to constant weight (generally no less than 4～6h)；
And waste asphalt mixture sample analysis is gone out: the weight/mass percentage composition of waste asphalt mixture medium pitch；
2) by waste asphalt mixture, newly gather materials, new Colophonium accounts for waste asphalt mixture, newly gather materials, the percent of new Colophonium and non-traditional oils and fats regenerative agent gross mass is: waste asphalt mixture 50%, new Colophonium 1.5%, non-traditional oils and fats regenerative agent accounts for the 3.0% of waste asphalt mixture medium pitch quality, chooses waste asphalt mixture, new Colophonium and non-traditional oils and fats regenerative agent；
Described newly gathering materials includes coarse aggregate, fine aggregate and filler；
And the quality of newly gather materials by the weighing of asphalt mixture design grating middle coarse aggregate, fine aggregate, and tentatively mix；Filler after drying individually weighs deposits (filler weighs) by asphalt mixture design grating；
3) waste asphalt mixture tentatively mixed and the coarse aggregate in newly gathering materials, fine aggregate are put into baking oven and be incubated at least 4h at 175 DEG C；
4) by non-traditional oils and fats regenerative agent and new Colophonium at 160～170 DEG C of mix homogeneously, incorporation time 15～30min, the new Colophonium containing regenerative agent is obtained；
5) by step 3) waste asphalt mixture of good heat insulation and the coarse aggregate in newly gathering materials, fine aggregate be placed in preheated mixing machine, and add the new Colophonium containing regenerative agent, start mixing machine mix 90s；
6) suspend mix, add the filler dried, continue mix 90s extremely uniformly, and make asphalt be maintained in the mix temperature range of requirement, obtain non-traditional oils and fats heat regeneration asphalt mixture.
Embodiment 2:
Non-traditional oils and fats hot recycling AC-20 asphalt, is applied to middle surface layer, by waste asphalt mixture, newly gather materials, new Colophonium and non-traditional oils and fats regenerative agent are prepared from (by mixing again, heating, blending craft).Waste asphalt mixture accounts for waste asphalt mixture, newly gathers materials, new Colophonium and non-traditional oils and fats regenerative agent gross mass 40%, new Colophonium accounts for waste asphalt mixture, newly gathers materials, new Colophonium and non-traditional oils and fats regenerative agent gross mass 1%, non-traditional oils and fats regenerative agent accounts for the 2% of waste asphalt mixture medium pitch quality.
Requirement according to " bituminous pavement design for highway specification " (JTGD50-2006), to waste asphalt mixture, newly gather materials in thick, fine aggregate and filler carry out final gradation, its formate gradation composition is in Table 2.
Table 2AC-20 screening and formate gradation composition
Described waste asphalt mixture is that the waste material that road surface cutting optimal revision produces processes through broken, sieving technology and obtains.
Described newly gathering materials includes coarse aggregate, fine aggregate and limestone mineral powder (filler).
Described new Colophonium is the waste asphalt AH-50 Colophonium with label same product source, i.e. AH-50 heavy traffic paving asphalt [in can adopting the supply of sea Colophonium (Taizhou) company limited].
Described non-traditional oils and fats regenerative agent is to be processed by the waste grease of " oil " containing 55% low viscosity (Unsaturatcd fatty acid glycerides) with 45% high viscosity " fat " (saturated fatty acid glyceride) through filtration, dehydration, deodorization process and obtain.
The preparation method of above-mentioned a kind of non-traditional oils and fats heat regeneration asphalt mixture, it comprises the steps:
1) by the waste asphalt mixture processed through broken, screening, newly gather materials to be respectively placed in the 105 DEG C ± baking oven of 5 DEG C (namely 100-110 DEG C) and dry to constant weight (generally no less than 4～6h)；
And waste asphalt mixture sample analysis is gone out: the weight/mass percentage composition of waste asphalt mixture medium pitch；
2) by waste asphalt mixture, newly gather materials, new Colophonium accounts for waste asphalt mixture, newly gather materials, the percent of new Colophonium and non-traditional oils and fats regenerative agent gross mass is: waste asphalt mixture 40%, new Colophonium 1.0%, non-traditional oils and fats regenerative agent accounts for the 2.0% of waste asphalt mixture medium pitch quality, chooses waste asphalt mixture, new Colophonium and non-traditional oils and fats regenerative agent；
Described newly gathering materials includes coarse aggregate, fine aggregate and filler；
And the quality of newly gather materials by the weighing of asphalt mixture design grating middle coarse aggregate, fine aggregate, and tentatively mix；Filler after drying individually weighs deposits (filler weighs) by asphalt mixture design grating；
3) waste asphalt mixture tentatively mixed and the coarse aggregate in newly gathering materials, fine aggregate are put into baking oven and be incubated at least 4h at 175 DEG C；
4) by non-traditional oils and fats regenerative agent and new Colophonium at 160～170 DEG C of mix homogeneously, incorporation time 15～30min, the new Colophonium containing regenerative agent is obtained；
5) by step 3) waste asphalt mixture of good heat insulation and the coarse aggregate in newly gathering materials, fine aggregate be placed in preheated mixing machine, and add the new Colophonium containing regenerative agent, start mixing machine mix 90s；
6) suspend mix, add the filler dried, continue mix 90s extremely uniformly, and make asphalt be maintained in the mix temperature range of requirement, obtain non-traditional oils and fats heat regeneration asphalt mixture.
Embodiment 3:
Non-traditional oils and fats hot recycling AC-16 asphalt, is applied to upper layer, by waste asphalt mixture, newly gather materials, new Colophonium and non-traditional oils and fats regenerative agent are prepared from (by mixing again, heating, blending craft).Waste asphalt mixture accounts for waste asphalt mixture, newly gathers materials, new Colophonium and non-traditional oils and fats regenerative agent gross mass 30%, new Colophonium accounts for waste asphalt mixture, newly gathers materials, new Colophonium and non-traditional oils and fats regenerative agent gross mass 2%, non-traditional oils and fats regenerative agent accounts for the 1% of waste asphalt mixture medium pitch quality.
Requirement according to " bituminous pavement design for highway specification " (JTGD50-2006), to waste asphalt mixture, newly gather materials in thick, fine aggregate and filler carry out final gradation, its formate gradation composition is in Table 3.
Table 3AC-16 screening and formate gradation composition
Described waste asphalt mixture is that the waste material that road surface cutting optimal revision produces processes through broken, sieving technology and obtains.
Described newly gathering materials includes coarse aggregate, fine aggregate and limestone mineral powder (filler).
Described new Colophonium is the waste asphalt AH-50 Colophonium with label same product source, i.e. AH-50 heavy traffic paving asphalt [in can adopting the supply of sea Colophonium (Taizhou) company limited].
Described non-traditional oils and fats regenerative agent is to be processed by the waste grease of " oil " containing 55% low viscosity (Unsaturatcd fatty acid glycerides) with 45% high viscosity " fat " (saturated fatty acid glyceride) through filtration, dehydration, deodorization process and obtain.
The preparation method of above-mentioned a kind of non-traditional oils and fats heat regeneration asphalt mixture, it comprises the steps:
1) by the waste asphalt mixture processed through broken, screening, newly gather materials the baking oven being respectively placed in 105 DEG C ± 5 DEG C is dried to constant weight (generally no less than 4～6h)；
And waste asphalt mixture sample analysis is gone out: the weight/mass percentage composition of waste asphalt mixture medium pitch；
2) by waste asphalt mixture, newly gather materials, new Colophonium accounts for waste asphalt mixture, newly gather materials, the percent of new Colophonium and non-traditional oils and fats regenerative agent gross mass is: waste asphalt mixture 30%, new Colophonium 2.0%, non-traditional oils and fats regenerative agent accounts for the 1.0% of waste asphalt mixture medium pitch quality, chooses waste asphalt mixture, new Colophonium and non-traditional oils and fats regenerative agent；
Described newly gathering materials includes coarse aggregate, fine aggregate and filler；
And the quality of newly gather materials by the weighing of asphalt mixture design grating middle coarse aggregate, fine aggregate, and tentatively mix；Filler after drying individually weighs deposits (filler weighs) by asphalt mixture design grating；
3) waste asphalt mixture tentatively mixed and the coarse aggregate in newly gathering materials, fine aggregate are put into baking oven and be incubated at least 4h at 175 DEG C；
4) by non-traditional oils and fats regenerative agent and new Colophonium at 160～170 DEG C of mix homogeneously, incorporation time 15～30min, the new Colophonium containing regenerative agent is obtained；
5) by step 3) waste asphalt mixture of good heat insulation and the coarse aggregate in newly gathering materials, fine aggregate be placed in preheated mixing machine, and add the new Colophonium containing regenerative agent, start mixing machine mix 90s；
6) suspend mix, add the filler dried, continue mix 90s extremely uniformly, and make asphalt be maintained in the mix temperature range of requirement, obtain non-traditional oils and fats heat regeneration asphalt mixture.
Regenerating mixture pavement performance is detected, and including high-temperature stability, low-temperature stability and water stability, testing result is as shown in table 4.
The different old material volume regenerating mixture pavement performance index of table 4
Embodiment 4:
Essentially identical with the one in embodiment 1-3, it is different in that: described non-traditional oils and fats regenerative agent is to be processed by the waste grease of " oil " containing 40wt% low viscosity (Unsaturatcd fatty acid glycerides) with 60wt% high viscosity " fat " (saturated fatty acid glyceride) through filtration, dehydration, deodorization process and obtain.Properties of product are with the one in embodiment 1-3 quite.
Embodiment 5:
Essentially identical with the one in embodiment 1-3, it is different in that: described non-traditional oils and fats regenerative agent is to be processed by the waste grease of " oil " containing 65wt% low viscosity (Unsaturatcd fatty acid glycerides) with 35wt% high viscosity " fat " (saturated fatty acid glyceride) through filtration, dehydration, deodorization process and obtain.Properties of product are with the one in embodiment 1-3 quite.
The bound of each raw material of the present invention, interval value, and the bound of technological parameter (such as temperature, time etc.), interval value can realize the present invention, embodiment numerous to list herein.
Claims (9)
1. a non-traditional oils and fats heat regeneration asphalt mixture, it is characterized in that, by waste asphalt mixture, newly gather materials, new Colophonium and non-traditional oils and fats regenerative agent are prepared from, waste asphalt mixture, newly gather materials, new Colophonium accounts for waste asphalt mixture, newly gather materials, the percent of new Colophonium and non-traditional oils and fats regenerative agent gross mass is: waste asphalt mixture 30 ~ 60%, newly gather materials 38 ~ 68%, new Colophonium 1 ~ 2%, non-traditional oils and fats regenerative agent accounts in waste asphalt mixture the 1 ~ 3.5% of Bituminous concrete surface quality.
2. the non-traditional oils and fats heat regeneration asphalt mixture of one according to claim 1, it is characterised in that described waste asphalt mixture is to be produced by maintenance of surface or maintenance process, processes through broken, sieving technology and obtains.
3. the non-traditional oils and fats heat regeneration asphalt mixture of one according to claim 1, it is characterized in that, described newly gathering materials includes coarse aggregate, fine aggregate and filler, coarse aggregate, fine aggregate, filler the consumption requirement according to " bituminous pavement design for highway specification " (JTGD50-2006), pass through final gradation.
4. the non-traditional oils and fats heat regeneration asphalt mixture of one according to claim 3, it is characterised in that the described middle coarse aggregate that newly gathers materials refers to the one in the rubble of particle diameter >=2.36mm, crushing gravel, graded gravel, slag etc..
5. the non-traditional oils and fats heat regeneration asphalt mixture of one according to claim 3, it is characterised in that the described middle fine aggregate that newly gathers materials refers to that particle diameter is less than the one in the natural sand of 2.36mm, artificial sand, aggregate chips etc..
6. the non-traditional oils and fats heat regeneration asphalt mixture of one according to claim 3, it is characterised in that the described middle filler that newly gathers materials refers to that particle diameter is less than the one in the breeze of 0.075mm, cement, slaked lime, flyash etc..
7. the non-traditional oils and fats heat regeneration asphalt mixture of one according to claim 1, it is characterised in that described new Colophonium refers to AH-50 heavy traffic paving asphalt.
8. the non-traditional oils and fats heat regeneration asphalt mixture of one according to claim 1, it is characterized in that, described non-traditional oils and fats regenerative agent is to be processed by the waste grease containing 40 ~ 65wt% Unsaturatcd fatty acid glycerides and 35 ~ 60wt% saturated fatty acid glyceride through filtration, dehydration, deodorization process and obtain.
9. the preparation method of a kind of non-traditional oils and fats heat regeneration asphalt mixture as claimed in claim 1, it is characterised in that it comprises the steps:
1) by the waste asphalt mixture processed through broken, screening, newly gather materials the baking oven being respectively placed in 105 DEG C ± 5 DEG C is dried to constant weight；
And waste asphalt mixture sample analysis is gone out: the weight/mass percentage composition of waste asphalt mixture medium pitch；
2) by waste asphalt mixture, newly gather materials, new Colophonium accounts for waste asphalt mixture, newly gather materials, the percent of new Colophonium and non-traditional oils and fats regenerative agent gross mass is: waste asphalt mixture 30 ~ 60%, newly gather materials 38 ~ 68%, new Colophonium 1 ~ 2%, non-traditional oils and fats regenerative agent accounts for the 1 ~ 3.5% of waste asphalt mixture medium pitch quality, chooses waste asphalt mixture, newly gathers materials, new Colophonium and non-traditional oils and fats regenerative agent；
Described newly gathering materials includes coarse aggregate, fine aggregate and filler；
And by the quality of asphalt mixture design grating weighing waste asphalt mixture and newly gather materials middle coarse aggregate, fine aggregate, and tentatively mix；Filler after drying individually weighs by asphalt mixture design grating and deposits；
3) waste asphalt mixture tentatively mixed and the coarse aggregate in newly gathering materials, fine aggregate are put into baking oven and be incubated at least 4h at 175 DEG C；
4) by non-traditional oils and fats regenerative agent and new Colophonium at 160 ~ 170 DEG C of mix homogeneously, incorporation time 15 ~ 30min, the new Colophonium containing regenerative agent is obtained；
5) waste asphalt mixture of step 3) good heat insulation and the coarse aggregate in newly gathering materials, fine aggregate are placed in preheated mixing machine, add the new Colophonium containing regenerative agent, start mixing machine mix 90s；
6) suspend mix, add the filler dried, continue mix 90s extremely uniformly, and make asphalt be maintained in the mix temperature range of requirement, obtain non-traditional oils and fats heat regeneration asphalt mixture.
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| CN201610206963.6A CN105801011B (en) | 2016-04-05 | 2016-04-05 | A kind of non-traditional grease heat regeneration asphalt mixture and preparation method thereof |
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| CN201610206963.6A CN105801011B (en) | 2016-04-05 | 2016-04-05 | A kind of non-traditional grease heat regeneration asphalt mixture and preparation method thereof |
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| CN105801011B CN105801011B (en) | 2018-06-26 |
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| CN107056139A (en) * | 2017-04-07 | 2017-08-18 | 海盐富安建设科技发展有限公司 | A kind of energy-conserving and environment-protective asphalt and its preparation technology |
| CN107815131A (en) * | 2017-11-17 | 2018-03-20 | 苏州三创路面工程有限公司 | A kind of heat regeneration asphalt mixture and preparation method thereof |
| CN109678397A (en) * | 2019-01-19 | 2019-04-26 | 江苏盛达飞建筑材料有限公司 | Reclaimed asphalt mixture and preparation method thereof |
| CN109987882A (en) * | 2019-04-19 | 2019-07-09 | 福建南方路面机械有限公司 | A kind of RAP regenerates production method entirely |
| CN110183147A (en) * | 2019-04-30 | 2019-08-30 | 中国建筑土木建设有限公司 | Asphalt mixture for environment-friendly road and preparation method thereof |
| CN112159157A (en) * | 2020-10-14 | 2021-01-01 | 广州市市政集团有限公司 | Wet direct-vat rubber-recycled asphalt mixture and preparation method thereof |
| CN116376110A (en) * | 2023-01-16 | 2023-07-04 | 湖南省交通运输厅交通建设造价管理站 | Regenerant for asphalt pavement material and construction method |
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| CN107056139A (en) * | 2017-04-07 | 2017-08-18 | 海盐富安建设科技发展有限公司 | A kind of energy-conserving and environment-protective asphalt and its preparation technology |
| CN107815131A (en) * | 2017-11-17 | 2018-03-20 | 苏州三创路面工程有限公司 | A kind of heat regeneration asphalt mixture and preparation method thereof |
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| CN112159157A (en) * | 2020-10-14 | 2021-01-01 | 广州市市政集团有限公司 | Wet direct-vat rubber-recycled asphalt mixture and preparation method thereof |
| CN116376110A (en) * | 2023-01-16 | 2023-07-04 | 湖南省交通运输厅交通建设造价管理站 | Regenerant for asphalt pavement material and construction method |
| CN116376110B (en) * | 2023-01-16 | 2024-04-30 | 湖南省交通运输厅交通建设造价管理站 | Regenerant for asphalt pavement material and construction method |
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