CN109722045A - A kind of prefabricated assembly structural and its preparation process based on waste asphalt milling material - Google Patents
A kind of prefabricated assembly structural and its preparation process based on waste asphalt milling material Download PDFInfo
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- CN109722045A CN109722045A CN201811651516.7A CN201811651516A CN109722045A CN 109722045 A CN109722045 A CN 109722045A CN 201811651516 A CN201811651516 A CN 201811651516A CN 109722045 A CN109722045 A CN 109722045A
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- waste asphalt
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Abstract
The invention discloses a kind of prefabricated assembly structural and its preparation process based on waste asphalt milling material, belongs to recycling waste and Traffic Engineering Construction field.Absolutely to utilize waste asphalt pavement milling material, and promote waste asphalt and the performance gathered materials in milling material, guarantee that Prefabricated block performance prepared therefrom meets the requirement of different construction area structures, the present invention provides a kind of prefabricated assembly structural and its preparation process based on waste asphalt milling material, and prefabricated assembly structural includes waste asphalt milling material, building stones, binder, structural reinforcement material.Test result shows that the structural strength with higher of the Prefabricated block obtained by waste asphalt milling material, high temperature performance and water resistant damage performance, and index is able to satisfy code requirement.The there is provided prefabricated assembled concrete of the invention not only can effectively solve the handling problems that waste asphalt gathers materials, and also provide functional, low-cost precast construction module for different construction areas, have a extensive future.
Description
Technical field
The invention discloses a kind of prefabricated assembly structural and its preparation process based on waste asphalt milling material, belongs to discarded
Object recycles and Traffic Engineering Construction field.
Background technique
The development of highway in China and construction speed are very fast, are completed in highway, bituminous pavement accounts for 80% or more.In early days
The road built enters the maintenance interval successively, and communications and transportation load is in increase tendency in addition, and service life of road surface falls sharply, Xin Xiu or
A large amount of waste asphalt milling material can be generated by overhauling, if by stacking handle, land occupation causes environmental pollution, and causes huge
The big wasting of resources.
The invention discloses a kind of prefabricated assembly structural and its preparation process based on waste asphalt milling material.Module is with useless
Old asphalt pavement milling material is to gather materials, and is matched by adjusting to gather materials with virgin material, addition different type binder, modified material and knot
Structure reinforcing material is prepared into the precast construction that performance meets different construction area technical requirements, can be used in crossing, park
Driving, pedestrian road, different zones sidewalk, kerbstone, side slope protection building block, hollow six ribs brick, torrent trough floor, drain bar with
And other drainings construct, the construction fields such as local maintenance of emergency repair region and different brackets road.The prefabricated knot
Structure can effectively solve the disposition difficult problem of waste asphalt milling material, and reduce the exploitation of new building stones, and environmental benefit is very aobvious
It writes；In addition, precast construction prepared therefrom can quickly be spliced to form secured entirety, and easy to change, and kept away in urban road laying
Exempt from high-temperature operation, the effectively save energy and data, Prefabricated block is low in cost in addition, and economic benefit and social benefit are very aobvious
It writes.
Summary of the invention
The invention discloses a kind of prefabricated assembly structural and its preparation process based on waste asphalt milling material, can be effective
The disposition difficult problem of waste asphalt milling material is solved, gained Prefabricated block intensity, high temperature performance are good, can be used for difference and apply
Work field, reduces the exploitation of new building stones, and economy and environmental benefit are huge.
Prefabricated assembly structural of the present invention based on waste asphalt milling material be by waste asphalt milling material, building stones,
Binder, structural reinforcement material form, mass fraction shared by each component in the prefabricated assembly structural are as follows: waste asphalt milling material
100 parts, 0-20 parts of building stones, 3-10 parts of binder, 0-10 parts of structural reinforcement material.
The waste asphalt milling material is sieved by each broken dispersion of level milling material mixing of waste asphalt pavement and is determined grade
Match, gradation is determined according to indexs such as intensity, the holes of laying work area construction technical requirement.
The structural reinforcement material is selected from carbon fiber, polyacrylonitrile fibre, polyester fiber, aromatic polyamide fibre, cellulose
One or more of fiber, lignin fibre are used in compounding.
The binder is selected from matrix pitch, modified pitch, emulsified asphalt, foamed asphalt, cement, polyester resin, epoxy
One or more of resin, coal liquefaction residue are used in compounding.
The modifying agent that the modified pitch uses is selected from SBS, ethylene-vinyl acetate copolymer EVA, polythene PE, poly- third
Alkene PP, polyacrylamide, polyacrylate, water soluble acrylic acid, rubber powder, EP rubbers, Acrylate Butadiene copolymer, nanometer
TiO, montmorillonite, SBR latex, two or more in CR latex are used in compounding；Wherein water soluble acrylic acid, latex can be straight
Incorporation pitch is connect, blending and stirring is modified in a heated condition for remaining modifying agent and pitch.The additional amount of modifying agent is no more than waste and old
The 7% of Milled asphalt materials quality.
The modified pitch is added when modifying agent is modified and is additionally added light oil, and the light oil is distillated selected from coking
One or more of oil, paraffin oil, naphthenic oil, mineral oil, pine tar are used in compounding.The additional amount of light oil is no more than waste and old
The 10% of Milled asphalt materials quality.
The emulsifier used in the emulsified asphalt preparation coagulates fastly or splits slowly slow hardening emulsifier to split slowly.
The preparation process of the above-mentioned prefabricated assembly structural based on waste asphalt milling material are as follows: by waste asphalt milling material and stone
Material is put into mix pot, and structural reinforcement material is added, and mix is uniform, the addition of preprepared binder is stirred evenly,
Enter compression moulding in corresponding mold, room temperature demoulds afterwards for 24 hours, is placed in shady place preservation.
The above-mentioned prefabricated assembly structural based on waste asphalt milling material be applied to crossing, park driving, pedestrian road,
Bypass, sidewalk, kerbstone, side slope protection building block, hollow six ribs brick, torrent trough floor, drain bar and other draining buildings are answered
Suddenly speedily carry out rescue work region and different brackets road local maintenance construction in.
Present invention has the advantage that
(1) Prefabricated block is based on waste asphalt milling material, and solution waste asphalt milling material is seriously accumulated and application difficult
The problem of；
(2) precast construction can newly be gathered materials on a small quantity by addition according to construction technical requirement, different type binder and structure
Reinforcing agent, technical performance and durability can meet the technical requirements of different construction fields, and application field is extensive, it is possible to reduce new collection
The exploitation of material；
(3) prefabricated construction normal-temperature operation in road construction and maintenance reduces noxious gas emission, and constructs
Not by temperature limiting, substantially extend can the construction time, scene splicing speed is fast, efficient and convenient.
(4) prefabricated assembly structural does not influence surrounding road surface in road surface local damage, and road surface is avoided stress expansion occur
The defects of spallation seam and cracking, and convenient disassembly, influence normal traffic smaller.
Specific embodiment
It in order to more clearly illustrate the contents of the present invention, is further illustrated below by specific embodiment, but the present invention is simultaneously
It is without being limited thereto.
Embodiment 1
Modified emulsifying asphalt preparation:
(1) modified pitch for preparing SBS volume 3% is heated to 145 DEG C,
(2) prepare soap lye: weigh prepare quality of the emulsion 2% split fast curdled milk agent slowly, stir evenly, be heated to 58 DEG C,
It is added in mulser and recycles, prepare emulsified asphalt, solid content 62% with (1) made modified pitch.It is cooled to room temperature, is added
The SBR latex for accounting for quality of the emulsion 5%, stirs evenly.
(3) 100 parts of waste asphalt milling material, 4 parts of tap water, stir 90s by 10 parts of aggregate chips, and 1 part of cement and 0.4 part is poly-
Mix pot is added in ester fiber, continues to stir 90s, is added prepared by (2) 6 parts of composite modified emulsification asphalt (bitumen aggregate ratio 3.7%), after
Continuous stirring 180s, prepares marshal piece and track plate, is placed at room temperature for 48h, demoulding.Test result is as shown in Table.
Embodiment 2
The preparation of rubber powder-SBS modified pitch: matrix pitch is heated to 170 DEG C, and rubber powder is added and SBS, volume are respectively 10%
With 3%, 50min is stirred, 1% distillate oil is added, continues to stir 10min.
(2) 100 parts of waste asphalt milling material, 20 parts of rubble are dried 4h in 180 DEG C of baking ovens, 4 parts of tap water, are poured into and have been heated to
In 180 DEG C of mix pots, mix pot is added in 0.3 part of carbon fiber, stirs 90s, and 3 parts of modified pitch of (1) preparation are added, continue to stir
180s prepares marshal piece and track plate, is placed at room temperature for 48h, demoulding.Test result is as shown in Table.
1 embodiment of table prepares the test result of test specimen
Claims (9)
1. a kind of prefabricated assembly structural based on waste asphalt milling material, which is characterized in that it is by waste asphalt milling material, stone
Material, binder, structural reinforcement material, water form, mass fraction shared by each component in the prefabricated assembly structural are as follows: waste asphalt
100 parts of milling material, 0-20 parts of building stones, 3-10 parts of binder, 0-10 parts of structural reinforcement material, 2-6 parts of water.
2. a kind of prefabricated assembly structural based on waste asphalt milling material according to claim 1, which is characterized in that described
Waste asphalt milling material is by each broken dispersion of level milling material mixing of waste asphalt pavement, screening.
3. a kind of prefabricated assembly structural based on waste asphalt milling material according to claim 1, which is characterized in that described
It is fine that structural reinforcement material is selected from carbon fiber, polyacrylonitrile fibre, polyester fiber, aromatic polyamide fibre, cellulose fibre, lignin
One or more of dimension is used in compounding.
4. a kind of prefabricated assembly structural based on waste asphalt milling material according to claim 1, which is characterized in that described
Binder is residual selected from matrix pitch, modified pitch, emulsified asphalt, foamed asphalt, cement, polyester resin, epoxy resin, coal liquefaction
One or more of slag is used in compounding.
5. a kind of prefabricated assembly structural based on waste asphalt milling material according to claim 4, which is characterized in that described
The modifying agent that modified pitch uses is selected from SBS, ethylene-vinyl acetate copolymer EVA, polythene PE, polypropylene PP, polyacrylamide
Amine, polyacrylate, water soluble acrylic acid, rubber powder, EP rubbers, Acrylate Butadiene copolymer, nano-TiO, montmorillonite, SBR
Two or more in latex, CR latex is used in compounding；Wherein water soluble acrylic acid, latex can be directly incorporated into pitch,
Blending and stirring is modified in a heated condition for remaining modifying agent and pitch.
6. a kind of prefabricated assembly structural based on waste asphalt milling material according to claim 5, which is characterized in that described
Modified pitch, which is added, is additionally added light oil when modifying agent is modified, the light oil is selected from coker distillate, paraffin oil, cycloalkanes
One or more of oil, mineral oil, pine tar are used in compounding.
7. a kind of prefabricated assembly structural based on waste asphalt milling material according to claim 4, which is characterized in that described
The emulsifier used in emulsified asphalt preparation coagulates fastly or splits slowly slow hardening emulsifier to split slowly.
8. a kind of preparation process of prefabricated assembly structural based on waste asphalt milling material according to claim 1, special
Sign is, the preparation process are as follows: waste asphalt milling material, building stones and water are put into mix pot, structural reinforcement material is added,
Mix is uniform, and the addition of preprepared binder is stirred evenly, compression moulding in corresponding mold, room temperature are poured into
It demoulds afterwards for 24 hours, is placed in shady place preservation.
9. a kind of prefabricated assembly structural based on waste asphalt milling material according to claim 1 is in crossing, park
Driving, pedestrian road, bypass, sidewalk, kerbstone, side slope protection building block, hollow six ribs brick, torrent trough floor, drain bar and
Application in the local maintenance construction of other draining buildings, emergency repair region and different brackets road.
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110342849A (en) * | 2019-08-08 | 2019-10-18 | 辽宁新发展公路科技养护有限公司 | A method of prefabricated drain tank is prepared using the regeneration of bituminous pavement top milling material |
| CN110372262A (en) * | 2019-08-08 | 2019-10-25 | 辽宁新发展公路科技养护有限公司 | A method of precast curb is prepared using bituminous pavement top milling material regeneration |
| CN110436827A (en) * | 2019-08-08 | 2019-11-12 | 辽宁新发展公路科技养护有限公司 | The method for preparing prefabricated pavement brick is regenerated using bituminous pavement top milling material |
| CN110451851A (en) * | 2019-08-08 | 2019-11-15 | 辽宁新发展公路科技养护有限公司 | The method for preparing prefabricated six rib protecting block of side slope is regenerated with bituminous pavement top milling material |
| CN111635166A (en) * | 2020-06-24 | 2020-09-08 | 宁夏睿泰天成新材料科技有限公司 | Mix proportion design method for warm-mixed SBS ultrathin wearing layer asphalt mixture |
| CN113998923A (en) * | 2021-11-16 | 2022-02-01 | 山东高速工程咨询集团有限公司 | Asphalt concrete prefabricated part based on solid waste material and preparation method thereof |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110342849A (en) * | 2019-08-08 | 2019-10-18 | 辽宁新发展公路科技养护有限公司 | A method of prefabricated drain tank is prepared using the regeneration of bituminous pavement top milling material |
| CN110372262A (en) * | 2019-08-08 | 2019-10-25 | 辽宁新发展公路科技养护有限公司 | A method of precast curb is prepared using bituminous pavement top milling material regeneration |
| CN110436827A (en) * | 2019-08-08 | 2019-11-12 | 辽宁新发展公路科技养护有限公司 | The method for preparing prefabricated pavement brick is regenerated using bituminous pavement top milling material |
| CN110451851A (en) * | 2019-08-08 | 2019-11-15 | 辽宁新发展公路科技养护有限公司 | The method for preparing prefabricated six rib protecting block of side slope is regenerated with bituminous pavement top milling material |
| CN110436827B (en) * | 2019-08-08 | 2021-11-30 | 辽宁新发展公路科技养护有限公司 | Method for preparing prefabricated pedestrian pavement brick by utilizing pavement milling and planing material regeneration of asphalt pavement |
| CN110342849B (en) * | 2019-08-08 | 2022-01-14 | 北方道路科技(辽宁)有限公司 | Method for preparing prefabricated drainage groove by utilizing asphalt pavement surface layer milling material for regeneration |
| CN110372262B (en) * | 2019-08-08 | 2022-05-27 | 辽宁新发展公路科技养护有限公司 | Method for preparing prefabricated kerbstone by utilizing pavement milling and planing material regeneration of asphalt pavement |
| CN111635166A (en) * | 2020-06-24 | 2020-09-08 | 宁夏睿泰天成新材料科技有限公司 | Mix proportion design method for warm-mixed SBS ultrathin wearing layer asphalt mixture |
| CN111635166B (en) * | 2020-06-24 | 2021-11-12 | 宁夏睿泰天成新材料科技有限公司 | Mix proportion design method for warm-mixed SBS ultrathin wearing layer asphalt mixture |
| CN113998923A (en) * | 2021-11-16 | 2022-02-01 | 山东高速工程咨询集团有限公司 | Asphalt concrete prefabricated part based on solid waste material and preparation method thereof |
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