CN101016716B - Influent polymer cement concrete pavement structure on asphalt surface and construction method - Google Patents
Influent polymer cement concrete pavement structure on asphalt surface and construction method Download PDFInfo
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- CN101016716B CN101016716B CN 200710078219 CN200710078219A CN101016716B CN 101016716 B CN101016716 B CN 101016716B CN 200710078219 CN200710078219 CN 200710078219 CN 200710078219 A CN200710078219 A CN 200710078219A CN 101016716 B CN101016716 B CN 101016716B
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- 239000011388 polymer cement concrete Substances 0.000 title claims abstract description 52
- 238000010276 construction Methods 0.000 title claims abstract description 21
- 239000010426 asphalt Substances 0.000 title claims description 40
- 239000004567 concrete Substances 0.000 claims abstract description 76
- 239000004568 cement Substances 0.000 claims abstract description 58
- 239000010410 layer Substances 0.000 claims abstract description 13
- 239000007921 spray Substances 0.000 claims abstract description 4
- 229920000642 polymer Polymers 0.000 claims description 72
- 239000002344 surface layer Substances 0.000 claims description 31
- 239000000945 filler Substances 0.000 claims description 25
- 239000000463 material Substances 0.000 claims description 24
- 239000000203 mixture Substances 0.000 claims description 21
- 239000004576 sand Substances 0.000 claims description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 12
- 150000001875 compounds Chemical class 0.000 claims description 11
- 238000000034 method Methods 0.000 claims description 11
- 239000012752 auxiliary agent Substances 0.000 claims description 8
- 239000000839 emulsion Substances 0.000 claims description 6
- 230000015572 biosynthetic process Effects 0.000 claims description 5
- 230000005484 gravity Effects 0.000 claims description 5
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims description 4
- 238000012423 maintenance Methods 0.000 claims description 4
- 238000003756 stirring Methods 0.000 claims description 3
- 229910000019 calcium carbonate Inorganic materials 0.000 claims description 2
- 229920002313 fluoropolymer Polymers 0.000 claims description 2
- 239000004811 fluoropolymer Substances 0.000 claims description 2
- 239000010881 fly ash Substances 0.000 claims description 2
- 239000000843 powder Substances 0.000 claims description 2
- 229920005989 resin Polymers 0.000 claims description 2
- 239000011347 resin Substances 0.000 claims description 2
- KNXVOGGZOFOROK-UHFFFAOYSA-N trimagnesium;dioxido(oxo)silane;hydroxy-oxido-oxosilane Chemical compound [Mg+2].[Mg+2].[Mg+2].O[Si]([O-])=O.O[Si]([O-])=O.[O-][Si]([O-])=O.[O-][Si]([O-])=O KNXVOGGZOFOROK-UHFFFAOYSA-N 0.000 claims description 2
- 239000004575 stone Substances 0.000 abstract description 2
- 239000012790 adhesive layer Substances 0.000 abstract 3
- 229920002959 polymer blend Polymers 0.000 abstract 2
- 230000032683 aging Effects 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 9
- 239000011398 Portland cement Substances 0.000 description 7
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
- 230000008602 contraction Effects 0.000 description 3
- 239000004033 plastic Substances 0.000 description 3
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 239000011384 asphalt concrete Substances 0.000 description 2
- 230000001680 brushing effect Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 239000006260 foam Substances 0.000 description 2
- 229910010272 inorganic material Inorganic materials 0.000 description 2
- 239000011147 inorganic material Substances 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- 230000003044 adaptive effect Effects 0.000 description 1
- 230000003712 anti-aging effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 239000011368 organic material Substances 0.000 description 1
- 239000011433 polymer cement mortar Substances 0.000 description 1
- 239000002986 polymer concrete Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Abstract
A flow polymer cement concrete road above pitch face layer and relative construction comprise a pitch face layer 3 and a plated adhesive layer 2, wherein above the adhesive layer 2, the invention uses single-stage stage or intermission-stage broke stone to form porous cement concrete, to be laid and flattened, vibrates the porous cement concrete, and sprays the polymer mixture mechanically on the face of concrete, to flow the polymer mixture into the porous cement concrete, then stuffs some holes in the concrete, to form a flow polymer cement concrete face layer 1. The inventive face layer 1 has high strength, anti-crack property, waterproof property and aging resistance or the like, while the adhesive layer 2 can integrate the face layer and the pitch face layer 3, to bear force together.
Description
Technical field
The present invention relates to pavement engineering and the job practicess thereof such as highway construction, inflow formula polymer cement concrete pavement face structure and job practices on especially a kind of asphalt surface course.
Background technology
1, cement concrete material and job practices thereof
Cement concrete material is a kind of widely known constructional materials, although concrete development only has the history in more than 100 year, nowadays become most widely used in the world wide, consumption is maximum, the constructional materials that almost is seen everywhere.Cement concrete with the cement slurry of inorganic material as adhesive material, bonding rubble and sand.The cement concrete of plastic state has certain flowability, and closely knit for the inside concrete after guaranteeing to solidify, the general Vibration Technology that adopts is constructed during cast plastic state concrete, and cement paste solidifies the hard concrete as building stones of rear formation.The characteristics that it has the convenience of drawing materials, construction is simple, intensity is high, can make arbitrary shape.Yet cement concrete material has himself unsurmountable weakness: the early solidification amount of contraction is large, the inner initial imperfection that easily produces; Therefore the adaptive deformation ability, easy to crack, people are devoted to the research of cement concrete modifying always for a long time.
In recent years, the appearance of polymer modified cement-concrete---concrete organising---makes again this material of concrete go on a new developing stage.Polymer modified cement-concrete is with polymer or polymer emulsion modified cement, and with polymer water mud or polymer emulsion modified cement paste as adhesive material, bonding rubble and sand.The resistance to compression of polymer modified cement-concrete, tension, impact strength all are improved largely, and have high erosion-resisting characteristics, and have the adaptable distinguishing feature of deformability, thereby have obtained using comparatively widely.
Polymer modified cement-concrete mainly as concrete repairing material, ornament materials and house earth surface paver, also has fragmentary utilization in Structural Engineering, road surface and bridge floor at present.The construction technology of polymer modified cement-concrete has two kinds: 1. when wherein aggregate size is larger, adopt and the identical technique of portland cement concrete construction: require polymer modified cement-concrete that larger flowability is arranged, slump is generally at 3-5cm, vibration compacting after the cast, general making thickness is 2-4cm; The particle diameter that 2. ought wherein gather materials hour requires polymer modified cement-concrete (being also referred to as polymer cement mortar) to have larger flowability equally, adopts the mode that is similar to swabbing, and layering is brushed to the works surface, and general thickness is 0.5-2cm.Front a kind of form of construction work is used for the making of house earth surface, rear a kind of repairing, decoration etc. of then being used for.
In use there is following subject matter in existing polymer modified cement-concrete material: when adopting above-mentioned the first technique, because the contraction of polymer modified cement-concrete is general always greater than portland cement concrete, even best its amount of contraction of polymer modified cement-concrete of shrinkage is also only identical with ordinary concrete, therefore the shrinkage-compensating seam must be set during the polymer modified cement-concrete paving, can not continuous laying.When adopting the second construction technology, in order to guarantee that polymer modified cement-concrete does not ftracture, in the unit volume polymer modified cement-concrete amount of polymeric material large, involve great expense, in addition, the thickness that the technique of layering brushing once forms less (being not more than lcm), so the second construction technology generally can not be for large tracts of land and pavement of road (general all more than the 4cm) laying with certain thickness requirement.
2, the problem of existing polymer cement concrete existence
Conventional polymer cement concrete is that polymer, cement, rubble, sand etc. are mixed uniform mixing, the polymer cement concrete of formation, and then the work that paves, and what finally form is the polymer cement concrete of compact structure.Because therefore the polymer cement concrete properties of materials, a lot of problems can occur in the construction, is difficult to implement in engineering.This also just polymer cement concrete be difficult to the reason of large-scale promotion application in engineering.
3, the problem of the existence of the overlay on the asphalt surface course
When asphalt surface course need to overlay, present way had two kinds: the one, still overlay bitumen layer thereon, and the 2nd, making Portland Cement Concrete Surface Course thereon.When the making Portland Cement Concrete Surface Course, general thickness is thicker, and waste is larger economically; When the making bitumen layer, because the poor durability of pitch class material, service life is short, still may need after several years to overlay, and comprehensive cost is expensive.
Summary of the invention
The purpose of this invention is to provide a kind of simple in structure, easy construction, adopt inflow formula polymer cement concrete pavement face structure and job practices on the formed asphalt surface course of inflow formula polymer cement concrete, provide a kind of new selection for overlaying on the asphalt surface course.
The present invention arranges tack coat at asphalt surface course, form again the porous cement concrete that is rich in hole thereon, then in hole, flow into the compound of polymer and filler, form inflow formula polymer cement concrete surface layer, after flowing into polymer composition, cement concrete is organised be achieved, strengthened concrete deformability, fragility significantly reduces, thereby makes the mechanical property of material more excellent.Inflow formula polymer cement concrete surface layer is bonded together by tack coat and asphalt surface course, forms common stressed road structure, has the intensity height, and crack resistance is good, the characteristics of water-tolerant, anti-aging, good corrosion resistance.
The technical scheme that purpose of the present invention adopts is its structure: include asphalt surface course.Be provided with tack coat on the asphalt surface course surface, form the porous cement concrete that is rich in hole at tack coat, then in hole, flow into polymer composition, form inflow formula polymer cement concrete surface layer.
The present invention, asphalt surface course is that the utilization bituminous material that forms is in advance built the surface layer that forms.Asphalt surface course is asphalt concrete pavement or asphalt macadam surface layer etc.
The present invention, tack coat is to be by weight ratio the waterproof thin layer of-compositions of mixtures that polymer: filler=1:0 ~ 15 form by polymer or polymer and filler, can with its under asphalt surface course with its on inflow formula polymer cement concrete surface layer secure bond.
The present invention flows into formula polymer cement concrete surface layer by flowing into polymer in the porous cement concrete and filler is by weight---and the mixture that polymer: filler=1:0 ~ 5 form forms.
The present invention, the used polymer of tack coat and the formula of inflow polymer cement concrete surface layer is fluoropolymer resin, polymer powder or polymer emulsion.
The present invention, the corresponding thinner of adding dilutes in tack coat and the mixture that flows into polymer used in the formula polymer cement concrete surface layer or polymer and media assemblage, also add corresponding auxiliary agent, the weight proportion of polymer and thinner, auxiliary agent is---polymer: thinner: auxiliary agent=1:0 ~ 10:0 ~ 2.
The present invention, filler is active filler, comprises cement or flyash, is inert filler perhaps, comprises calcium carbonate or French chalk or fine sand, perhaps is the mixture of different media assemblage.
The present invention, porous cement concrete in the inflow formula polymer cement concrete surface layer is comprised of rubble and sand, cement, the water of gap grading or single grating, every cubic meter of concrete is by weight ratio---cement: rubble: sand: water=150 ~ 450kg:1200 ~ 2200kg:0 ~ 500kg:60 ~ 180kg forms the cement concrete that is rich in hole.
The present invention after the compound of polymer and filler is sprayed onto the surface of porous cement concrete surface layer, can flow into the inside of porous cement concrete surface layer along the space under Action of Gravity Field.
Job practices of the present invention is that step is as follows: on the surface of the asphalt surface course of clearing up, adopt machinery or artificial method that polymer and filler are are evenly mixed and stirred 1:0 ~ 15 by weight ratio, form the compound of polymer and media assemblage, then compound is sprayed or brushes on asphalt surface course, form tack coat, before material in tack coat does not solidify fully, according to rubble and the sand of weight proportion with gap grading or single grating, cement, hydromining machinery or artificial uniform stirring, form porous cement concrete, adopt spreading machine or Manual porous cement concrete, utilize spreading machine or manually realize the leveling of porous cement concrete, compacting, maintenance 1-7 days, then adopt machinery or artificial method that polymer and filler are are evenly mixed and stirred by weight 1:0 ~ 5, the compound of polymer and filler formation is sprinkled upon the surface of porous cement concrete with mechanical spray, make the polymer composition of inflow rely on gravity to flow into the inside of porous cement concrete along hole, hole in the filling porous cement concrete, thereby form inflow formula polymer cement concrete surface layer, the polymer composition that flows into formula polymer cement concrete surface layer flows into operation and finishes rear maintenance 1-7 days.
The inflow formula polymer cement concrete that the present invention adopts has very large difference with existing polymer modified cement-concrete, is embodied in:
(1) inflow formula polymer cement concrete of the present invention is compared with existing polymer modified cement-concrete, its material structure is different, corresponding therewith, mixing proportion design theory is also different: the inflow formula polymer cement concrete of the present patent application is that the hole that utilizes polymer composition to flow in the porous concrete consists of, therefore, when the components such as polymer content, cement factor were identical, both physical and chemical performances, mechanical property had larger difference; Adapt therewith, during mix-design, the problem that the present invention considers also has larger difference with traditional polymer cement concrete.
(2) construction technology is obviously different.The construction sequence of the inflow formula polymer cement concrete surface layer of the present patent application is, at first adopts paver from shakeouing, being rich in the porous cement concrete of hole from the jolt ramming construction technology, need not to adopt road roller to roll after paving; Then adopt the hole in the filling porous cement concrete of method that flows into, form at last inflow formula polymer cement concrete surface layer, therefore construction technology of the present invention is simple and convenient, realizes easily, is convenient to promote.
And existing polymer modified cement-concrete adopts the Vibration Technology construction often in construction; When adopting brushing technique, the thickness of once constructing is little, is difficult to adapt to the extensive construction of pavement of road.
To sum up, the present invention is a kind of new novel road surface structure that is different from existing various road structures.The road surface had both had cement concrete high strength, had again a high flexibility of polymer concrete, had both had the stability of inorganic material, had again the cementitiousness of organic material, and the road surface has simultaneously the advantage of rigid pavement and flexible pavement and respectively goes it short.
The present invention can guarantee that good road with the thickness that significantly reduces top course under the prerequisite, brings significant economy; Inflow formula polymer cement concrete pavement face is drawn materials conveniently, and construction is simple, quick.
Description of drawings
Further specify by reference to the accompanying drawings the present invention.
Accompanying drawing is section structure schematic diagram of the present invention.
---inflow formula polymer cement concrete surface layer 2---tack coat among the figure: 1
3---asphalt surface course
The specific embodiment
Below an embodiment:
Its structure is, asphalt surface course 3, tack coat 2, flows into formula polymer cement concrete surface layer 1, and asphalt surface course has tack coat 2 on 3 surfaces, at tack coat 2 inflow formula polymer cement concrete surface layer 1 is arranged.
At first clean the asphalt concrete pavement that forms in advance, then artificial the shop brushed the polymer water mud of cementation thereon, form tack coat, the weight proportion of tack coat is---polymer SBR emulsion: filler (Portland cement PO 42.5): water: auxiliary agent (silicon oil foam killer)=1:3:l:0.01, add entry dilution bonding layer material, be beneficial to construction; After 1 hour, has certain dry consistency with the cement concrete mixer preparation, be suitable for asphalt paver from leveling, porous cement concrete from jolt ramming technique, its weight proportion is---Portland cement PO 42.5: rubble (join by single-stage, particle diameter 5-l0mm): sand: water=300:1650:50:120, the compound that stirs is transported to the job site with dump truck, pave with asphalt paver, adopt the certainly leveling of paver, realize the leveling of porous cement concrete from jolt ramming technique, compacting, the porous cement concrete layer of hole is rich in formation, steamroller does not vibrate yet; Film covers health 3 days, then spray polymer composition on the surface of porous cement concrete layer with the watering can rifle, polymer composition has certain flowability, can rely on gravity to flow in the hole of porous cement concrete goes, used polymer composition, its weight proportion is---polymer benzene emulsion: filler (Portland cement PO 42.5+ sand): water (thinner): auxiliary agent (silicon oil foam killer)=1:3.1(wherein: cement is 3, sand is 0.1): 4.5:0.01, after the polymer composition of inflow formula polymer cement concrete surface layer 1 flows into the operation end, adopt the plastic sheeting covering curing, 7 days curing times.
Claims (10)
1. the inflow formula polymer cement concrete pavement face structure on the asphalt surface course, include asphalt surface course (3), it is characterized in that: asphalt surface course (3) has tack coat (2) on the surface, form the porous cement concrete that is rich in hole at tack coat (2), then in hole, flow into the compound of polymer and filler, form inflow formula polymer cement concrete surface layer (1).
2. the inflow formula polymer cement concrete pavement face structure on the asphalt surface course according to claim 1 is characterized in that: the surface layer that asphalt surface course (3) forms for the utilization bituminous material build that forms in advance.
3. the inflow formula polymer cement concrete pavement face structure on the asphalt surface course according to claim 1, it is characterized in that: tack coat (2) is to be by weight ratio by polymer or polymer and filler---the waterproof thin layer of the compositions of mixtures that polymer: filler=l:0 ~ 15 form, can with its under asphalt surface course (3) and inflow formula polymer cement concrete surface layer (1) secure bond on it.
4. the inflow formula polymer cement concrete pavement face structure on the asphalt surface course according to claim 3 is characterized in that: flow into formula polymer cement concrete surface layer (1) by flowing into polymer in the porous cement concrete and filler is by weight---the mixture that polymer: filler=1:0 ~ 5 form forms.
5. the inflow formula polymer cement concrete pavement face structure on the asphalt surface course according to claim 4 is characterized in that: tack coat (2) polymer used with flowing into formula polymer cement concrete surface layer (1) is fluoropolymer resin, polymer powder or polymer emulsion.
6. the inflow formula polymer cement concrete pavement face structure on the asphalt surface course according to claim 4, it is characterized in that: tack coat (2) adds corresponding thinner with the mixture that flows into polymer used in the formula polymer cement concrete surface layer (1) or polymer and media assemblage or water dilutes, add corresponding auxiliary agent, the weight proportion of polymer and thinner or water, auxiliary agent is---polymer: thinner or water: auxiliary agent=1:0 ~ 10:0 ~ 2.
7. the inflow formula polymer cement concrete pavement face structure on the asphalt surface course according to claim 4, it is characterized in that: filler is active filler, comprises cement or flyash, perhaps is inert filler, comprising calcium carbonate or French chalk or fine sand, perhaps is the mixture of different media assemblage.
8. the inflow formula polymer cement concrete pavement face structure on the asphalt surface course according to claim 4 is characterized in that: flow into the porous cement concrete in the formula polymer cement concrete surface layer (1)
Rubble and sand, cement, water by gap grading or single grating form, every cubic meter of concrete is by weight ratio---cement: rubble: sand: water=150 ~ 450kg:1200 ~ 2200kg:0 ~ 500kg:60 ~ 180kg forms the cement concrete that is rich in hole.
9. the inflow formula polymer cement concrete pavement face structure on the asphalt surface course according to claim 4, it is characterized in that: after the compound of polymer and filler is sprayed onto the surface of porous cement concrete surface layer (1), can under Action of Gravity Field, flow into the inside of porous cement concrete surface layer (1) along the space.
10. the inflow formula polymer cement concrete pavement face construction method on the asphalt surface course, it is characterized in that step is as follows: the surface in the asphalt surface course of clearing up (3), adopt machinery or artificial method by weight polymer and filler evenly to be mixed and stirred 1:0 ~ 15 by weight ratio, form the compound of polymer and media assemblage, then compound is sprayed or brushes on asphalt surface course (3), form tack coat (2), before material in tack coat (2) does not solidify fully, according to rubble and the sand of weight proportion with gap grading or single grating, cement, hydromining machinery or artificial uniform stirring, form porous cement concrete, adopt spreading machine or Manual porous cement concrete, utilize spreading machine or manually realize the leveling of porous cement concrete, compacting, maintenance 1-7 days, then adopt machinery or artificial method that polymer and filler are are evenly mixed and stirred by weight 1:0 ~ 5, the compound of polymer and filler formation is sprinkled upon the surface of porous cement concrete with mechanical spray, polymer composition relies on gravity to flow into the inside of porous cement concrete along hole, thereby form inflow formula polymer cement concrete surface layer (1), the polymer composition that flows into formula polymer cement concrete surface layer (1) flows into operation and finishes rear maintenance 1-7 days.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200710078219 CN101016716B (en) | 2007-02-14 | 2007-02-14 | Influent polymer cement concrete pavement structure on asphalt surface and construction method |
| PCT/CN2008/000271 WO2008101395A1 (en) | 2007-02-14 | 2008-02-02 | A concrete pavement and the construction method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200710078219 CN101016716B (en) | 2007-02-14 | 2007-02-14 | Influent polymer cement concrete pavement structure on asphalt surface and construction method |
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| Publication Number | Publication Date |
|---|---|
| CN101016716A CN101016716A (en) | 2007-08-15 |
| CN101016716B true CN101016716B (en) | 2013-01-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 200710078219 Expired - Fee Related CN101016716B (en) | 2007-02-14 | 2007-02-14 | Influent polymer cement concrete pavement structure on asphalt surface and construction method |
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| CN (1) | CN101016716B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008101395A1 (en) * | 2007-02-14 | 2008-08-28 | Zhijian Yi | A concrete pavement and the construction method thereof |
| CN102322010B (en) * | 2011-07-14 | 2013-11-13 | 华南理工大学 | Road surface porous resin seal layer and construction method thereof |
| CN102518018B (en) * | 2011-12-27 | 2014-10-08 | 江西中联建设集团有限公司 | Stacked structure of road pavement and construction method for stacked structure |
| CN103643617B (en) * | 2013-11-27 | 2016-08-17 | 长安大学 | A kind of polymer modified cement-concrete once paves forming method |
| CN107165017A (en) * | 2017-07-24 | 2017-09-15 | 上海市市政规划设计研究院 | The permanent composite pavement structure transformed for old asphalt pavement |
| CN115323857B (en) * | 2021-07-18 | 2023-10-20 | 深圳市路桥建设集团有限公司 | Bus station ground prepared from pervious concrete |
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