CN209397458U - The combined type permeable pavement structure that permeability flexible surface layer is combined with rigid porous base course - Google Patents

The combined type permeable pavement structure that permeability flexible surface layer is combined with rigid porous base course Download PDF

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Publication number
CN209397458U
CN209397458U CN201822077954.9U CN201822077954U CN209397458U CN 209397458 U CN209397458 U CN 209397458U CN 201822077954 U CN201822077954 U CN 201822077954U CN 209397458 U CN209397458 U CN 209397458U
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China
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layer
surface layer
combined
slag
steel slag
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CN201822077954.9U
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陈小兵
孔德羽
张小飞
张松
骆明金
陆秀英
王振杰
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Kunshan Transportation Development Holding Group Co Ltd
Architects & Engineers Ltd Of Southeast University
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Kunshan Transportation Development Holding Group Co Ltd
Architects & Engineers Ltd Of Southeast University
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A30/00Adapting or protecting infrastructure or their operation
    • Y02A30/60Planning or developing urban green infrastructure

Abstract

The utility model discloses the combined type permeable pavement structures that a kind of permeability flexible surface layer is combined with rigid porous base course, which includes the surface layer being from top to bottom sequentially arranged, gluing layer, base, underlayment and soil matrix.Surface layer is the pervious asphalt surface layer that pervious asphalt concrete is formed, gluing layer is emulsified asphalt or heated bitumen, base is steel slag permeable concrete base, and graded broken stone layer, single particle size Slag Layer or gradation Slag Layer can be used in underlayment, and the material in soil matrix is sand or clay.The combined type permeable pavement structure has the advantage that (1) permeable breathable is good, using the Permeable characteristic of every layer of structure, surface gathered water can be quickly excluded on rainy day, reduces pumping equipment burden, rainwater infiltration, which enters soil matrix, can effectively supplement urban groundwater, system of keeping ecological balance;(2) alleviate tropical island effect, there is excellent environmental benefit.

Description

The combined type permeable pavement structure that permeability flexible surface layer is combined with rigid porous base course
Technical field
The utility model relates to pavement structure technical fields, more particularly to permeability flexible surface layer and rigid porous base course group The combined type permeable pavement structure of conjunction.
Background technique
The irrationality of urban planning and construction is to cause the one of the major reasons of urban ecological problem.In Process of Urban Development In, largely urban surface, these fluid-tight urban surfaces are covered using the material water-proof materials such as cement concrete and asphalt Covering has separated contacting between natural soils and atmosphere, causes huge between urban ecological environment and natural ecological environment Big difference, so that urban residential environment constantly deteriorates.
The 1960s, Europe some national such as Germany, France, Britain, Italy propose drainage road The concept in face, and application is realized in Germany first.China begins one's study drainage pavement in early stage the 1990s, has taken so far Obtained some achievements, domestic certain cities a plurality of drainage pavement of making.
Steel slag generation rate in the whole world is about the 12~20% of crude steel yield at present, abandons using steel slag as waste, not only accounts for With a large amount of land resource, pollution also is caused to environment.In order to adapt to the fast development of steel and iron industry, in recent years, steel is respectively produced How state all will refer to and have been achieved for significant achievement in important schedule using the problem of steel slag.Wherein steel Slag can serve as a kind of material built the road, and be applied to road engineering, studies have shown that steel slag has preferable pavement performance.
Comprehensive reutilization steel slag can not only reduce steel-making cost, bring direct economic benefit, and be conducive to environmental protection, With very big society and ecological benefits.In conclusion how to apply to steel slag in permeable pavement structure had become one both It has an economic benefit and has the problem of environmental benefit, the utility model then provides the answer of this problem.
Utility model content
To solve the above problems, the utility model provides a kind of permeability flexible surface layer and rigid porous base course group This industrial waste of steel slag material is added in this configuration, and utilizes pervious asphalt face for the combined type permeable pavement structure of conjunction Layer reaches corresponding permeable effect and Structural strength calls with the complex form of pervious concrete base, for this purpose, this reality The combined type permeable pavement structure combined with novel offer permeability flexible surface layer with rigid porous base course, the permeable road of combined type Face structure setting is on roadbed, it is characterised in that: the structure include be arranged in the surface layer being from top to bottom sequentially arranged on roadbed, Gluing layer, base, underlayment and roadbed, the surface layer is the pervious asphalt surface layer that pervious asphalt concrete is formed, described to cohere Layer is emulsified asphalt or heated bitumen sticks layer, and the base is steel slag permeable concrete base, and the underlayment uses graded broken stone Layer or single particle size Slag Layer or gradation Slag Layer, the roadbed are made of sand or clay.
It is further improved as the utility model, the pervious asphalt surface layer uses PAC-10 or PAC-13, voidage Generally up to 18~25%, with a thickness of 3~6cm.
It is further improved as the utility model, the steel slag partial size mixed in the steel slag permeable concrete base is 5 ~15mm, groundwork thickness is 10~15cm, and this layer of compression strength answers >=C30, and flexural strength >=4.0Mpa, coefficient of permeability should be big In 3.0 × 10-2cm/s。
It is further improved as the utility model, the fine aggregate of graded broken stone layer chooses the stone generated in rubble process Bits are primary raw material, and coarse aggregate uses limestone slabstone, and the layer is with a thickness of 15~20cm.
It is further improved as the utility model, the steel slag partial size of single particle size Slag Layer is 5~15mm, and the thickness degree For 10~15cm.
As the utility model be further improved, gradation Slag Layer with a thickness of 15~20cm.
It is further improved as the utility model, the steel slag permeable concrete base, single particle size Slag Layer and grade Apparent density >=3.1 × 10 should be met with the steel slag mixed in Slag Layer3Kg/m3, immersion expansion rate answer≤2.0%, and steel Its crush values answers≤6% when slag particle diameter is 5~15mm.
The combined type permeable pavement structure that a kind of permeability flexible surface layer of the utility model is combined with rigid porous base course, has Following advantage;
(1) the application is mixed using the steel slag that partial size is 5~15mm as aggregate with adhesives such as cement, constitutes steel slag Pervious concrete base.The water permeability of steel slag waste material and structure sheaf can be made full use of.
(2) the application full impregnated ability of swimming pavement structure can exclude rapidly rainwater in the rainy day, and road table is made not generate runoff, improve row Vehicle safety.
(3) the big gap structure of the application road table, can reduce traffic noise, road table temperature can be made to be significantly less than in summer close Reality road surface, alleviates urban heat land effect, meets the environmental protection concept in sponge city.
(4) the application car lane, non-motorized lane and pavement use this structure, because its surface layer is pervious asphalt Layer, can guarantee consistent with the appearance of car lane, and urban road is made to seem more beautiful.
Detailed description of the invention
Fig. 1 is the novel combined permeable pavement structure structural schematic diagram of the utility model embodiment 1;
Fig. 2 is the novel combined permeable pavement structure structural schematic diagram of the utility model embodiment 2.
Specific embodiment
The utility model is described in further detail with specific embodiment with reference to the accompanying drawing:
The utility model provides a kind of combined type permeable pavement structure that permeability flexible surface layer is combined with rigid porous base course, This industrial waste of steel slag material is added in this configuration, and utilizes the compound of pervious asphalt surface layer and pervious concrete base Form reaches corresponding permeable effect.
The combined type permeable pavement structure that a kind of permeability flexible surface layer of the utility model is combined with rigid porous base course, it is described Combined type permeable pavement structure be arranged on roadbed, it is characterised in that: the structure include be arranged on roadbed from top to bottom according to Surface layer, gluing layer, base, underlayment and the soil matrix of secondary arrangement, the surface layer are the pervious asphalt that pervious asphalt concrete is formed Surface layer, the gluing layer is emulsified asphalt or heated bitumen sticks layer, and the base is steel slag permeable concrete base, the underlayment It is made of using graded broken stone layer or single particle size Slag Layer or gradation Slag Layer, the soil matrix sand or clay, wherein have 3~ The pervious asphalt surface layer of 6cm;The steel slag permeable concrete base of 10~15cm, wherein the partial size of steel slag is 5~15mm;15~ The gradation Slag Layer and soil matrix of the graded broken stone layer of 20cm or the single particle size Slag Layer of 10~15cm or 15~20cm.
Its further feature is as follows:
The pervious asphalt surface layer is formed using big gap water-permeating pitch mixed material PAC-10 or PAC-13, and voidage is logical Often up to 18~25%, the layer is with a thickness of 3~6cm.
The steel slag partial size mixed in the steel slag permeable concrete base is 5~15mm, and groundwork thickness is 10~15cm, And this layer of compression strength answers >=C30, flexural strength >=4.0Mpa, coefficient of permeability should be greater than 3.0 × 10-2cm/s。
The steel slag partial size of the single particle size Slag Layer is 5~15mm, and the layer is with a thickness of 10~15cm.
The gradation of steel slag requires that table 1 should be met in the gradation Slag Layer, and the layer is with a thickness of 15~20cm.
1 gradation slag as aggregate ratio requirement of table
The steel slag mixed in the steel slag permeable concrete base, single particle size Slag Layer and gradation Slag Layer should expire Sufficient apparent density >=3.1 × 103kg/m3, immersion expansion rate answers≤2.0%, and its crush values is answered when steel slag partial size is 5~15mm ≤ 6%.
The roadbed is made of sand or clay, it is ensured that rainwater can continue lower infiltration with recharge of groundwater.
Wherein steel slag Partial Physical Property used in the examples is as shown in table 2 below, but is not limited only to this.
The technical indicator that 2 steel slag special type of table is gathered materials
Technical indicator Unit Testing result
Apparent density kg/m3 3100~3900
Robustness % 1
Wearing valve % 14
Vickers hardness ? 740
Crush values (5~15mm) % < 6
Embodiment 1: refering to fig. 1, a kind of combined type permeable pavement structure, comprising: the PAC-10 surface layer 1 of 4cm designs hole Rate is 20%;The steel slag permeable concrete base 2 of 12cm, steel slag partial size are 5~15mm;The gravel-sorted subbase 3 of 20cm with And the roadbed 4 by compacting.Wherein 0.3L/m is dispensed between surface layer 1 and base 22Liquid petroleum pitch as glutinous layer.? In more optimized scheme, it can suitably increase and decrease each thickness degree according to the size of the volume of traffic, the example is for undertaking Pedestrian Load The non-motorized lane on pavement and non-motor vehicle load.
Embodiment 2: referring to Fig.2, a kind of novel combined permeable pavement structure, comprising: the PAC-13 surface layer 1 of 5cm, design Porosity is 22%;The steel slag permeable concrete base 2 of 15cm, steel slag partial size are 5~15mm;The gradation steel slag underlayment of 20cm 3 and by compacting roadbed 4.Wherein 0.4L/m is dispensed between surface layer 1 and base 22Emulsified asphalt as glutinous layer.More In the scheme of optimization, it can suitably increase and decrease each thickness degree according to the size of the volume of traffic, the example is for undertaking non-motor vehicle load Non-motorized lane with undertake the car lane of medium motor vehicle load.
The above descriptions are merely preferred embodiments of the present invention, is not to make any other to the utility model The limitation of form, and according to any modification or equivalent variations made by the technical essence of the utility model, it is practical new to still fall within this Type range claimed.

Claims (6)

1. the combined type permeable pavement structure that permeability flexible surface layer is combined with rigid porous base course, the combined type porous pavement knot Structure is arranged on roadbed, it is characterised in that: the structure includes the surface layer being from top to bottom sequentially arranged, gluing layer, base, base Layer and roadbed, the surface layer are the pervious asphalt surface layer that pervious asphalt concrete is formed, and the gluing layer is emulsified asphalt or heat Tack coat, the base are steel slag permeable concrete base, and the underlayment uses graded broken stone layer or single particle size steel slag Layer or gradation Slag Layer, the roadbed are made of sand or clay.
2. the combined type permeable pavement structure that permeability flexible surface layer according to claim 1 is combined with rigid porous base course, It is characterized by: the pervious asphalt surface layer uses the road surface PAC-10 or PAC-13, voidage up to 18 ~ 25%, with a thickness of 3 ~ 6cm。
3. the combined type permeable pavement structure that permeability flexible surface layer according to claim 1 is combined with rigid porous base course, It is characterized by: the steel slag partial size mixed in the steel slag permeable concrete base be 5 ~ 15mm, groundwork thickness be 10 ~ 15cm, and this layer of compression strength answers >=C30, flexural strength >=4.0Mpa, coefficient of permeability should be greater than 3.0 × 10-2cm/s。
4. the combined type permeable pavement structure that permeability flexible surface layer according to claim 1 is combined with rigid porous base course, It is characterized by: the steel slag partial size of single particle size Slag Layer is 5 ~ 15mm, and the layer is with a thickness of 10 ~ 15cm.
5. the combined type permeable pavement structure that permeability flexible surface layer according to claim 1 is combined with rigid porous base course, It is characterized by: gradation Slag Layer with a thickness of 15 ~ 20cm.
6. the combined type permeable pavement structure that permeability flexible surface layer according to claim 1 is combined with rigid porous base course, It is characterized by: the steel slag mixed in the steel slag permeable concrete base, single particle size Slag Layer and gradation Slag Layer Apparent density >=3.1 × 10 should be met3 kg/m3, immersion expansion rate answers≤2.0%, and its crush values when steel slag partial size is 5 ~ 15mm Answer≤6%.
CN201822077954.9U 2018-12-12 2018-12-12 The combined type permeable pavement structure that permeability flexible surface layer is combined with rigid porous base course Active CN209397458U (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110593046A (en) * 2019-09-30 2019-12-20 上海市政工程设计研究总院(集团)有限公司 High-strength durable steel slag permeable asphalt pavement structure

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110593046A (en) * 2019-09-30 2019-12-20 上海市政工程设计研究总院(集团)有限公司 High-strength durable steel slag permeable asphalt pavement structure

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