CN103850164A - Construction method of long-service-life pass-through induced drainage pavement - Google Patents

Construction method of long-service-life pass-through induced drainage pavement Download PDF

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Publication number
CN103850164A
CN103850164A CN201410043158.7A CN201410043158A CN103850164A CN 103850164 A CN103850164 A CN 103850164A CN 201410043158 A CN201410043158 A CN 201410043158A CN 103850164 A CN103850164 A CN 103850164A
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pavement
construction method
long
water
weight ratio
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CN103850164B (en
Inventor
刘治龙
吕志伟
宋书彬
陈彦锋
张鹏
陈冠峰
吴歌
陈静
张晓朋
潘刚
陈磊
吕珩
于水敬
李冬梅
管东
胡文娟
杨春祥
金鑫
王春阳
贾海峰
程杰
宋满
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ZHENGZHOU HIGHWAY ENGINEERING Co
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ZHENGZHOU HIGHWAY ENGINEERING Co
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Abstract

The invention discloses a construction method of a long-service-life pass-through induced drainage pavement. The construction method comprises the following steps: 1, preparing filtering materials of the pass-through water-induced pavement, including coarse aggregate, fine aggregate and modified bituminous mixture according to the weight ratio of 58.5 to 35.85 to 5.65, wherein the modified bituminous mixture comprises slaked lime, red mud and conjugate fiber according to the weight ratio of 58.5 to 35.85 to 5.65, and the conjugate fiber comprises wood fiber and basalt fiber according to the weight ratio of 1 to 2; 2, processing a substrate of the construction pavement; 3, arranging an adhesive layer or sealing layer which has the thickness of 0.1-0.2mm and the porosity of 30%; 4, arranging a substrate filtering material layer which is 0.05-0.15mm thick between a soil layer and a gravel layer of the substrate; 5, mechanically paving; 6, treating joints; and 7, maintaining the pavement. The construction method can obviously improve the adhering force, anti-cracking performance, tensile and water-damage resistance performance and noise reducing performance of the pavement, enhance the rainstorm resistance of the pavement, and reduce the influence of long-term rain storage on stability performance of bituminous concrete.

Description

The construction method of penetrating induction type drainage pavement of a kind of long-life
Technical field:
The present invention relates to a kind of construction method of flexible pavement, particularly relate to the construction method of penetrating induction type drainage pavement of a kind of long-life, make rainwater resident in drainage topping make it lateral flow and then discharge road surface by the connectivity gap in surface layer and technical induction.
Background technology:
In the work progress of at present traditional non-water-permeable pavement, put undue emphasis on the waterproof, seepage control of road table, this road surface is complete and bottom, road surface soil layer and underground water blocking-up by natural precipitation, rainfall have to enter by urban sewerage and drainage system pipe network in the earth surface water sources such as river, river, lake, sea, this just causes Urban Underground water source to be difficult to be supplemented timely, has a strong impact on effective utilization of rainwater; When waterproof ground rainfall simultaneously, rainwater is that first drainage grade or the open drain, earth's surface by ground enters sewer, entering before sewer and will just can enter Urban Underground drainage system through the surface flow of longer distance, this process is dissolved in a large amount of urban surface pollutants the rainwater relatively cleaning, the secondary pollution producing in this runoff process, enter peripheral ground natural water by urban sewerage and drainage system, thereby increased the weight of the degree of contamination of these natural waters.
Summary of the invention:
Technical problem to be solved by this invention is: a kind of long-life penetrating induction type drainage pavement construction method is provided, this construction method can improve adhesive power, freedom from cracking performance, tension and anti-water damage property, the anti-acoustic capability on road surface, increase the uprising rain ability on road surface, also weaken the impact of rainwater long term storage on bituminous concrete stability simultaneously.
The technical scheme that the present invention takes for technical solution problem is:
A construction method for penetrating induction type drainage pavement of long-life, is characterized in that: comprise the steps:
The penetrating preparation that lures water route face filtering material: adopt the many spaces dewatering and noise reduction bituminous mixture being formed by coarse aggregate, fine aggregate and modified asphalt mixture as the penetrating filtering material that lures water route face, the weight ratio of coarse aggregate, fine aggregate, modified asphalt mixture is 58.5:35.85:5.65, wherein: modified asphalt mixture comprises slaked lime, red mud and conjugate fiber, the weight ratio of slaked lime, red mud, conjugate fiber is 32.1:64.2:3.7; In conjugate fiber, the weight ratio of wood fibre, basalt fibre is 1:2, and the consumption of conjugate fiber should be 3.7%;
2. the construct base treatment on road surface: the base treatment according to conventional construction method operates;
3. drainage topping with in the interface of lower surface layer one deck adhesion coating or sealing are set, the thickness of described adhesion coating or sealing is 0.1~0.2mm, the porosity of described adhesion coating or sealing is 30%;
4. between the soil layer of bases and macadam, be provided with substrate filtering material layer, the thickness of described substrate filtering material layer is 0.05~0.15mm;
5. machinery paves: when drainage topping on pave, while paving many spaces dewatering and noise reduction bituminous mixture, paver adopts the sliding equalizer bar of conventional truss;
6. joint treatment: adopt the direct joint-cutting of electric pick, then blow dust with air compressor machine or forest fire extinguisher, then water rinses seaming position, the obstruction in switching power space;
7. maintenance of surface: adopt vacuum draw or high pressure water flushing to inject row periodic maintenance.
Step 1. in, the absolute viscosity of described modified asphalt mixture is more than or equal to 20,000PaS under 60 DEG C of conditions.
The described long-life, penetrating induction type drainage pavement comprised water permeability asphalt road surface, permeable concrete road surface and porous brick.
Modified asphalt mixture in the present invention has high voidage and full-bodied feature, and so-called " high viscosity " refers to the pitch of absolute viscosity more than 20,000PaS under 60 DEG C of conditions, and its concrete physical property is as shown in Table 1 below:
table 1 modified asphalt mixture technical indicator
Index Unit Detect desired value
Needle penetration (25 DEG C) 0.1 mm 40~50
Softening point, is not less than 80
Ductility (5 DEG C), is not less than cm 30
Flash-point, is not less than 260
Film heating mass change, is not more than % 0.6
Film heating needle penetration residual rate, is not less than % 65
Sticky toughness (25 DEG C), is not less than N·m 20
Toughness (25 DEG C), is not less than N·m 15
60 DEG C of viscosity, are not less than Pa·s 20000
In the present invention: the coarse aggregate of many spaces dewatering and noise reduction bituminous mixture, must be homogeneous, clean, hard, there is durability, strictly control the hazardous substancess (referring to table 2 and table 3) such as the flag, dust, earth, organic matter of elongated flat
table 2 coarse aggregate technical indicator
table 3 coarse aggregate specification requirement (the empty sieve in side)
In the present invention: the fine aggregate kind using in the dewatering and noise reduction bituminous mixture of many spaces comprises:
(1) natural sand
(2) manufactured sand
(3) riddled sand
(4) special sand
Fine aggregate should clean, hard, dry, without weathering, free from admixture, good with asphalt adhesion, specific targets refer to table 4 and table 5.
table 4 fine aggregate technical indicator
table 5 fine aggregate size
In the present invention, adding surfactant with red mud, flyash replaces limestone breeze as the breeze in bituminous mixture, increase pitch and the adhesiveness of gathering materials with this, improve the ability of compound absorption and absorption pitch, improve pitch gradation, improve high-temperature stability, anti-dustability and the water stability of bituminous mixture.The technical requirement following (referring to table 6) of breeze of the present invention:
table 6 breeze technical indicator
Pilot project Technical requirements Technical requirements
Apparent density, is not less than t/m 3 2.50
Water content, is not more than % 1
Particle size range < 0.6mm part % 100
< 0.15mm part % 90~100
< 0.075mm part % 75~100
Outward appearance ? Without a caking
Hydrophilic coefficient ? < 1
Index of plasticity % < 4
Tool of the present invention has the following advantages and good effect:
1, adopt many spaces dewatering and noise reduction bituminous mixture to come asphalt road surface, can effectively reduce noise, particularly densely populated city, can reduce the construction of noise barrier, improved resident's quality of life, the noise pollution of solving road surrounding area.
2, many spaces dewatering and noise reduction flexible pavement that the present invention lays is a kind of flexible pavement of special shape, from the economic analysis of microcosmic, due to its distinctive ecological, environmental protective function, is huge on the macroeconomy impact of entire society.
3, the property loss that many spaces dewatering and noise reduction flexible pavement that the present invention lays causes due to traffic accident raising safe driving, minimizing is quite obvious.
4, many spaces dewatering and noise reduction bituminous mixture that the present invention uses, the rutting resistance under the condition of high temperature, higher than asphalt concrete, is mainly to form cage construction because coarse aggregate mutually directly contacts to have strengthened carrying effect; The asphalt mortar, bituminous mortar that asphaltum with high viscosity and fine aggregate form, can effectively wrap up the contact point between coarse aggregate, stop coarse aggregate particle at action of traffic loading bottom offset, improved the anti-shear ability of this flexible pavement, make it be difficult for being lost the drain function on road surface by further compaction deformation.
5, the many spaces dewatering and noise reduction bituminous mixture using due to the present invention has higher void content, be subject to air, sunlight and rainwater effect that aging speed occurs, therefore, except using polymer modified asphalt, strengthen with the adhesion stress of gathering materials, strengthen beyond scour resistance, also should improve as far as possible asphalt content, increase the thickness of asphalt binder film, to delay the aging of bituminous mixture, this becomes one of main points of many spaces dewatering and noise reduction Bitumen Mix Design.
6, the many spaces dewatering and noise reduction Air Voids of Asphalt Mixtures using due to the present invention is high, radiating rate is fast, therefore should strengthen Insulation and construction at high temperature, meanwhile, smooth and easy for ensureing surface drainage path, must strengthen horizontal wall inscription control, therefore in the time of the drainage topping of paving concrete pavement, while paving many spaces dewatering and noise reduction bituminous mixture, paver adopts the sliding equalizer bar of conventional truss, reduces the quantity of transverse joint and longitudinal joint.
7, many spaces dewatering and noise reduction flexible pavement that the present invention lays, void content is high, generally between 15-25%.In general, middle surface layer is waterproof, moisture enters rain water collecting system from road both sides, its design feature is divided into " thoroughly ", " blocking up ", " row " three functions: 1. so-called " thoroughly ", it is the high-voidage of utilizing porous asphalt pavement, the footpath of rainwater or relevant range is flowed down and is seeped in drainage topping, make road table unlikely ponding under certain rainfall; 2. so-called " block up ", is that the water in drainage topping is only limited in upper layer, do not allow its ooze under continuing in, lower surface layer, in avoiding, the bituminous mixture generation Water Damage of lower surface layer, or affect the water stability of basic unit, and further affect earth roadbed stablizing; 3. so-called " row ", by the connectivity gap lateral flow in surface layer by rainwater resident in drainage topping, be pooled in rain water collecting system by scupper hose, Dewatering flat stone or natural side in both sides, increase the uprising rain ability on road surface, also weaken the impact of rainwater long term storage on bituminous concrete stability simultaneously.
8, many spaces dewatering and noise reduction flexible pavement that the present invention lays, also has an outstanding feature to reduce exactly noise.Due to its flourishing space, play the effect of porous absorption material, tire bottom air compression simultaneously then discharges " sonic boom " sound producing because compressed air is dissipated and is inhibited by connectivity gap.Generally can reduce noise more than 3 decibels, the rainy day, its noise reduction was more remarkable owing to having eliminated " sonic boom " of water body, can reach 8 decibels.
9, the present invention obtains strain energy by low temperature bend test result, and the part by weight of determining wood fibre in conjugate fiber, basalt fibre taking this is as 1:2, and the optimum amount of conjugate fiber is 3.7%.
10, the present invention proposes/drainage asphalt concrete interlayer should adopt the concept of water permeability adhesion coating or sealing, drainage topping with in the interface of lower surface layer one deck adhesion coating or sealing are set, thickness is 0.1~0.2mm, the porosity of described adhesion coating or sealing is 30%;
11, the present invention proposes and proposed to add surfactant replacement limestone breeze as the breeze in bituminous mixture with red mud, flyash, increase pitch and the adhesiveness of gathering materials with this, improve the ability of compound absorption and absorption pitch, improve pitch gradation, improve high-temperature stability, anti-dustability and the water stability of bituminous mixture.
12, the many spaces dewatering and noise reduction flexible pavement that adopts construction method of the present invention to lay, in the application life that can improve pass-through type drainage pavement, can reach more than 10 years application life.
Detailed description of the invention:
The construction method of embodiment 1, penetrating induction type drainage pavement of a kind of long-life, comprises the steps:
1. the penetrating preparation that lures water route face filtering material: adopt the many spaces dewatering and noise reduction bituminous mixture being formed by coarse aggregate, fine aggregate and modified asphalt mixture as the penetrating filtering material that lures water route face, the weight ratio of coarse aggregate, fine aggregate, modified asphalt mixture is 58.5:35.85:5.65, wherein: modified asphalt mixture comprises slaked lime, red mud and conjugate fiber, the weight ratio of slaked lime, red mud, conjugate fiber is 32.1:64.2:3.7; In conjugate fiber, the weight ratio of wood fibre, basalt fibre is 1:2, and the consumption of conjugate fiber should be 3.7%;
2. the construct base treatment on road surface: the base treatment according to conventional construction method operates;
3. drainage topping with in the interface of lower surface layer one deck adhesion coating or sealing are set, the thickness of described adhesion coating or sealing is 0.1~0.2mm, the porosity of described adhesion coating or sealing is 30%;
4. between the soil layer of bases and macadam, be provided with substrate filtering material layer, the thickness of described substrate filtering material layer is 0.05~0.15mm;
5. machinery paves: when drainage topping on pave, while paving many spaces dewatering and noise reduction bituminous mixture, paver adopts the sliding equalizer bar of conventional truss;
6. joint treatment: adopt the direct joint-cutting of electric pick, then blow dust with air compressor machine or forest fire extinguisher, then water rinses seaming position, the obstruction in switching power space;
7. maintenance of surface: adopt vacuum draw or high pressure water flushing to inject row periodic maintenance.
Step 1. in, the absolute viscosity of described modified asphalt mixture is more than or equal to 20,000PaS under 60 DEG C of conditions.
Long-life recited above, penetrating induction type drainage pavement comprised water permeability asphalt road surface, permeable concrete road surface and porous brick.
Embodiment 2: the Specific construction step of penetrating induction type drainage pavement of a kind of long-life is as follows:
1. mix-design: the production mix proportion of Experiment Road carries out on job laboratory.First the raw material in hot storehouse have been carried out to index detection, then carried out Marshall Test according to correlation step, finally determined that hot storehouse thickness is gathered materials and with the ratio of modified asphalt mixture be: 58.5:35.85:5.65
2. mix and stir process:
Before pitch batching plant mixes and stirs, batching plant grating, bitumen aggregate ratio are tried to adjust, make grating be tending towards the intermediate value of grading limit, lorry mounted mixer is equipped with pneumatic conveyer, add fiber, asphalt heating temperature is controlled at and is no more than 180 DEG C, mineral aggregate heating-up temperature 190~2lO DEG C, bituminous mixture dispatches from the factory normal 180~185 DEG C, and in bin stock process, temperature reduction is no more than 10 DEG C.
For mixing and stirring of composite modified fiber compound, can be with reference to the process of mixing and stirring of common SMA compound.First, by fiber and gathering materials and breeze dry mixing certain hour, then spray into pitch and mix and stir.
For mixing and stirring of modified fibre, the cause of wherein adding modifier due to fiber, in the time that temperature reaches more than 180 DEG C, fiber and modifier are become and are cohered piece by dispersity, join gather materials among the utmost point be difficult to disperse, therefore need to be in practice of construction, modified fibre and pitch are sprayed into batching plant simultaneously, and actual effect shows the generation that can effectively avoid the problems referred to above; Composite modified fiber to mix and stir technique identical with the technique of general fibre, first carry out adding again pitch after dry mixing certain hour.
The bituminous mixture mixing time should all be wrapped by pitch and determine through trial mix with compound uniform mixing, all mineral aggregate particles, it is 55 seconds that general batch mixer mixes and stirs time of one pot, due to admixture conjugate fiber, increase by 10 seconds compound dry mixing time, in the situation of condition license, can suitably increase again the mixing time.The bituminous mixture that mix and stir batching plant answers uniformity without grey material, becomes piece or serious coarse fodder segregation phenomenon without conglomeration.The compound mixing and stirring while requirement as do not reached must not use, and should search problem and adjust and solve in time.
3. before paving, prepare: before paving, clean surperficial foreign organic matter, and remove road surface dust with air compressor machine or forest fit-extinguishing, make road surface keep clean without dust, through management Cheng Shi passed examination and sign the spread of carrying out SBS modified bitumen bonding waterproofing course after recognizing evaluation and test, in the perpendicular edge of the parts such as concrete guardrail, people's (hand) hole and milling position, manually brush with brush; The abundant preheating of screed before paving, " the C or higher that reaches 100.Mixture laying temperature is not less than 170 " C.Mercurial thermometer close inspection is used at scene, guarantee that the qualified material that mixes and stirs paves, otherwise the type fiber mixture is difficult to compacting.
4. machinery paves: the coefficient control that paves is 1.2.
5. roll process: because bituminous mixture cohesive strength after adding of fiber in compound increases, while rolling, need increase and roll number of times 2~3 times, to reach best compactness.While rolling, driving wheel is front, stepped rolling, multiple press and final pressure last oblique 45 ", road roller must not reversed end for end or stop-for-waiting on roller-compaction and uncooled section; while adding water, must on cold burden, carry out, generally be advisable from 150~200 meters of pavers.The corner that road roller cannot be pressed onto, adopts hand compaction; The road surface that multiple pressure is complete is detected with 6 meters of rulers, and discovery out-of-flatness place is marked, and arranges road roller to eliminate to the sags and crests that may occur.
6. joint treatment: longitudinal seam adopts cold joint seam, carries out channel-section steel dismounting after having rolled.Laterally construction joint adopts flat seam, laying, compound is cooling but carry out while not yet hardening, detect with ruler butt joint place, to injustice, place all cuts, so that the paver elevation angle is remembered by seam Shunping County simultaneously, while making seam, the elevation angle is consistent, roll and adopt that road roller is oblique rolls, and then longitudinal rolling, out-of-flatness place road roller is done to emphasis processing.
Embodiment 3: adopt construction method of the present invention second day road pavement degree of compaction after construction completes to adopt boring method to detect, each section of testing result is as shown in table 6.1:
From degree of compaction testing result, the temperature that paves is larger on the consolidation effect impact of compound, for should first ensureing in this fiber mixture of two types paving process afterwards that its temperature that paves is 170 DEG C of left and right.
Be open to traffic after half a year in the Experiment Road completion that paves, we investigate the pavement usage situation of Experiment Road, and have carried out the mensuration (construction depth > 0.55mm) of pavement seepage coefficient and pendulum value, and result is as shown in table 6.2:
Embodiment 4: the penetrating induction type drainage pavement that construction method of the present invention is laid compared with traditional prevailing roadway in the situation that not increasing investment, can effectively reduce noise, reduce water smoke, both be conducive to environmental protection, more be conducive to traffic safety, meet the trend of current techniques development.Concrete function is as follows:
(1) reduce the danger of " water floats " at a high speed, make, in the situation that road table has water, still can maintain the good contact on tire and road surface.
(2) improve the visuality at rainy day and night, dabbling of rainwater generation can reduce greatly with water smoke, and rainy day and driving at night reverberation can be disperseed by road structure, and dazzle is little.
(3) under high speed traveling, cling property is significantly higher than prevailing roadway.
(4) due to the mechanism of porous sound absorption and connectivity gap earth pressure release, noise is decreased significantly.
(5) the raising of the aspect such as preventing atomization, fatigue resistance, non-skid property, durability makes service life of road surface extend one times of left and right, reach application life more than 10 years, on the road surface that uses construction method of the present invention, nothing has common pavement disease to occur, there is good contamination resistance for common earth, machine oil and household garbage, through good maintenance, road surface is durable as new, meets the requirement of porous pavement to matsurface.

Claims (3)

1. a construction method for penetrating induction type drainage pavement of long-life, is characterized in that: comprise the steps:
1. the penetrating preparation that lures water route face filtering material: adopt the many spaces dewatering and noise reduction bituminous mixture being formed by coarse aggregate, fine aggregate and modified asphalt mixture as the penetrating filtering material that lures water route face, the weight ratio of coarse aggregate, fine aggregate, modified asphalt mixture is 58.5:35.85:5.65, wherein: modified asphalt mixture comprises slaked lime, red mud and conjugate fiber, the weight ratio of slaked lime, red mud, conjugate fiber is 32.1:64.2:3.7; In conjugate fiber, the weight ratio of wood fibre, basalt fibre is 1:2, and the consumption of conjugate fiber should be 3.7%;
2. the construct base treatment on road surface: the base treatment according to conventional construction method operates;
3. drainage topping with in the interface of lower surface layer one deck adhesion coating or sealing are set, the thickness of described adhesion coating or sealing is 0.1~0.2mm, the porosity of described adhesion coating or sealing is 30%;
4. between the soil layer of bases and macadam, be provided with substrate filtering material layer, the thickness of described substrate filtering material layer is 0.05~0.15mm;
5. machinery paves: when drainage topping on pave, while paving many spaces dewatering and noise reduction bituminous mixture, paver adopts the sliding equalizer bar of conventional truss;
6. joint treatment: adopt the direct joint-cutting of electric pick, then blow dust with air compressor machine or forest fire extinguisher, then water rinses seaming position, the obstruction in switching power space;
7. maintenance of surface: adopt vacuum draw or high pressure water flushing to inject row periodic maintenance.
2. the construction method of penetrating induction type drainage pavement of a kind of long-life according to claim 1, is characterized in that: step 1. in, the absolute viscosity of described modified asphalt mixture is more than or equal to 20,000PaS under 60 DEG C of conditions.
3. the construction method of penetrating induction type drainage pavement of a kind of long-life according to claim 2, is characterized in that: the described long-life, penetrating induction type drainage pavement comprised water permeability asphalt road surface, permeable concrete road surface and porous brick.
CN201410043158.7A 2014-01-29 2014-01-29 The construction method of penetrating induction type drainage pavement of a kind of long-life Active CN103850164B (en)

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CN104631265A (en) * 2014-12-30 2015-05-20 新乡市公路勘察设计院 Porous water-permeable pavement repair material as well as production method and construction method of repair material
CN105297573A (en) * 2015-10-14 2016-02-03 东南大学 Road pavement or airfield pavement paving structure, preparation method and pipe die
CN105714640A (en) * 2016-03-14 2016-06-29 合肥工业大学 Construction method for dust removing and water draining macroporous asphalt road surface containing graded broken stone composite layer
CN105887609A (en) * 2016-04-13 2016-08-24 浙江泽汉环境科技有限公司 Method for constructing ecological infiltration pavement in sponge city
CN107220460A (en) * 2017-06-25 2017-09-29 长安大学 A kind of mixing proportion design method of high frictional resistance asphalt
CN107722649A (en) * 2017-09-18 2018-02-23 同济大学 A kind of modified pitch and its preparation and application
CN111499240A (en) * 2020-03-16 2020-08-07 山东大学 Red mud fiber composite material, preparation method thereof and application thereof in modified asphalt
CN111747715A (en) * 2020-07-07 2020-10-09 上海应用技术大学 Semi-permeable emulsified asphalt mixture and preparation method thereof

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Cited By (12)

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Publication number Priority date Publication date Assignee Title
CN104631265A (en) * 2014-12-30 2015-05-20 新乡市公路勘察设计院 Porous water-permeable pavement repair material as well as production method and construction method of repair material
CN105297573A (en) * 2015-10-14 2016-02-03 东南大学 Road pavement or airfield pavement paving structure, preparation method and pipe die
CN105714640A (en) * 2016-03-14 2016-06-29 合肥工业大学 Construction method for dust removing and water draining macroporous asphalt road surface containing graded broken stone composite layer
CN105714640B (en) * 2016-03-14 2017-05-17 合肥工业大学 Construction method for dust removing and water draining macroporous asphalt road surface containing graded broken stone composite layer
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CN107220460A (en) * 2017-06-25 2017-09-29 长安大学 A kind of mixing proportion design method of high frictional resistance asphalt
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CN107722649A (en) * 2017-09-18 2018-02-23 同济大学 A kind of modified pitch and its preparation and application
CN111499240A (en) * 2020-03-16 2020-08-07 山东大学 Red mud fiber composite material, preparation method thereof and application thereof in modified asphalt
CN111499240B (en) * 2020-03-16 2022-02-22 山东大学 Red mud fiber composite material, preparation method thereof and application thereof in modified asphalt
CN111747715A (en) * 2020-07-07 2020-10-09 上海应用技术大学 Semi-permeable emulsified asphalt mixture and preparation method thereof

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