CN102134825A - Dewatering and noise reduction bituminous concrete pavement - Google Patents
Dewatering and noise reduction bituminous concrete pavement Download PDFInfo
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Abstract
A dewatering and noise reduction concrete pavement comprises cement stabilizing macadam layers, a medium grained bituminous concrete layer, an SMA-13 layer and an upper layer of a dewatering and noise reduction road that are sequentially laid from the top down, wherein the number of the cement stabilizing macadam layers is two; mineral materials passing through a 31.5mm-0.075mm square hole screen constitute aggregates; the medium grained bituminous concrete layer is graded bituminous concrete mixture structure; the SMA-13 layer is added with wood fiber; the upper layer is a dewatering and noise reduction pavement layer; the dewatering and noise reduction pavement layer is constituted by a coarse aggregate, a fine aggregate and asphalt; and the proportion for aggregate grading is determined according to the requirement of wear resistance and target porosity. The benefits are as follows: effectively eliminating rain water on road surface, reducing water mist and glare, and decreasing pavement noise. Compared with the common dense grading bituminous pavement, the bituminous concrete pavement has the noise reduced by over 3db, and by over 7db when compared with the cement concrete pavement. The slip resistance of damp pavements can be improved, with traffic accidents greatly reduced on rainy days.
Description
Technical field:
The invention belongs to the pavement construction material technical field, relate in particular to the improvement of asphalt concrete pavement performance.
Background technology:
Traffic noise is a kind of as noise pollution, and resident crowd's interference has been surpassed other noise pollution form in many countries.The people who accepts investigation in France thinks the interference maximum that noise pollution causes daily life, and wherein half people thinks that traffic noise is the main noise source.The investigation in Pekinese also shows, the complaint of relevant traffic noise pollution accounts for noise and complains more than 55% of total amount.
It is extremely how unfavorable that rainy day brings to traffic safety.Therefore, also be a technical problem of this area.
At above-mentioned technical problem, aspect draining compound and road structure, carried out many research abroad.Britain was promptly studied at the drainage asphalt road surface as far back as the beginning of the seventies, but because of modified asphalt technology prematurity still at that time, the effect of result of study is bad.Along with the development of modified asphalt technology, carried out the making test of porous crack flexible pavement to the nineties, prove that such road surface truly has noise-decreasing and rainy day driving to prevent the remarkable effect that moisture film produces.This new results are owing to the polymer-modified asphalt of excellent performance, and a large amount of experiments and practical engineering application show that if do not adopt high performance modified bitumen, porous crack flexible pavement will produce early damage because of the effect of traffic and environment temperature in very short time.
The early stage a large amount of highway sections, sky grating wearing layer (IGFC) of adopting of the U.S. after studying through long-term operation, consistently think that the fabric matrix that is used in OGFC must use high performance modified bitumen, can better bring into play long-term functional performance to guarantee the OGFC structure.
The high performance modified bitumen binder because it is late American-European to carry out the research of draining Modified Bitumen Pavement, is noted using from the beginning by Japan.Japan's " drainage pavement technique pointer (case) " regulation, the bituminous material that is used for drainage road should possess anti-ly destroy, anti-water peels off, durability is good, and the good characteristic of anti-rutting deformation.At present modified bitumen is divided into high-viscosity modified asphalt, modified bitumen I type and modified bitumen II type.When using modified bitumen I type and modified bitumen II type,, in order to improve anti-strip, can add materials such as talcum ash in addition for the thickness that increases asphalt membrane can add fiber etc.The so-called high-viscosity modified asphalt of Japan, the absolute viscosity that is meant pitch in the time of 60 ℃ is widely used now greater than 20000Pa.s.Present 70% speedway of Japan uses the drainage road structure.It is introduced that use the drainage road structure, toll on traffic descends 70%.
Summary of the invention:
The fitting method and the ground surface material grating that the purpose of this invention is to provide a kind of dewatering and noise reduction road structure are with the dewatering and noise reduction problem on road improvement road surface.
Technical scheme of the present invention is: the dewatering and noise reduction asphalt concrete pavement, comprise to down and on the cement stabilized macadam layer of laying successively, middle grain formula asphalt concrete layer, SMA-13 layer and surface layer, it is characterized in that described cement stabilized macadam layer is two-layer, every layer thickness is 10-20cm, the cement stabilized macadam layer gather materials for: in whole aggregate quality, the content of cement is 5% of whole aggregate quality, mineral aggregate gradation is in the quality percentage by square hole screen, be respectively: the mineral aggregate by the 31.5mm square hole screen is 100%, mineral aggregate by the 19.0mm square hole screen is 68-86%, mineral aggregate by the 9.5mm square hole screen is 38-58%, mineral aggregate by the 4.75mm square hole screen is 22-32%, mineral aggregate by the 2.36mm square hole screen is 16-28%, mineral aggregate by the 0.6mm square hole screen is 8-15%, mineral aggregate by the 0.075mm square hole screen is 0-3%
Grain formula asphalt concrete layer is the dense-graded asphalt concrete mixture structure in described, thickness is 3-8cm, in whole aggregate quality, the content of cement is 5% of whole aggregate quality, mineral aggregate gradation is in the quality percentage by square hole screen, be respectively: the mineral aggregate by the 19.0mm square hole screen is 100%, mineral aggregate by the 16mm square hole screen is 90-100%, mineral aggregate by the 13.2mm square hole screen is 76-92%, mineral aggregate by the 9.5mm square hole screen is 60-80%, mineral aggregate by the 4.75mm square hole screen is 34-62%, and the mineral aggregate by the 2.36mm square hole screen is 20-48%, and the mineral aggregate by the 1.18mm square hole screen is 13-36%, mineral aggregate by the 0.6mm square hole screen is 7-18%, mineral aggregate by the 0.15mm square hole screen is 5-14%, and the mineral aggregate by the 0.075mm square hole screen is 4-8%
Be added with wood fibre in the described SMA-13 layer, the addition of wood fibre is 0.3% of a SMA-13 raw material quality, void content is 2%～3%: used mineral aggregate is the particulate formula, mineral aggregate gradation is in the quality percentage by square hole screen, be respectively: the mineral aggregate by the 16mm square hole screen is 100%, mineral aggregate by the 13.2mm square hole screen is 90-100%, mineral aggregate by the 9.5mm square hole screen is 50-75%, mineral aggregate by the 4.75mm square hole screen is 20-34%, mineral aggregate by the 2.36mm square hole screen is 15-26%, mineral aggregate by the 1.18mm square hole screen is 14-24%, mineral aggregate by the 0.6mm square hole screen is 10-16%, mineral aggregate by the 0.15mm square hole screen is 9-15%, and the mineral aggregate by the 0.075mm square hole screen is 8-12%
Described surface layer is the dewatering and noise reduction supercrust, the dewatering and noise reduction supercrust is by coarse aggregate, fine aggregate and pitch are formed, wherein the mass ratio of coarse aggregate and fine aggregate is 9-9.5: 1-0.5, the addition of pitch is 5% of a whole aggregate quality, the porosity of the road structure laid of gathering materials is 20%, described coarse aggregate is a fat lime rock material, the building stones level is equipped with the quality percentage meter by square hole screen, mineral aggregate by the 19.0mm square hole screen is 100%, mineral aggregate by the 13.2mm square hole screen is 92-100%, mineral aggregate by the 9.5mm square hole screen is 50-80%, described fine aggregate is a fat lime rock material, fine aggregate building stones level is equipped with the quality percentage meter by square hole screen, mineral aggregate by the 4.75mm square hole screen is 9-21%, mineral aggregate by the 2.36mm square hole screen is 9-13%, mineral aggregate by the 0.6mm square hole screen is 4-17%, mineral aggregate by the 0.3mm square hole screen is 3-12%, mineral aggregate by the 0.15mm square hole screen is 3-8%, mineral aggregate by the 0.075mm square hole screen is 2-7%, and the proportioning of concrete aggregate grading requires with abrasion resisting and goal porosity is determined;
Described pitch is high-viscosity modified asphalt and B level petroleum bitumen, the top layer high-viscosity modified asphalt of dewatering and noise reduction supercrust, and the top layer is following with B level petroleum bitumen.
Dewatering and noise reduction asphalt concrete pavement of the present invention is characterized in that describedly determining the proportioning of surface layer aggregate grading with abrasion resisting requirement and goal porosity, is to determine with following step:
1) as requested, selects the goal porosity gather materials;
2), select to gather materials kind according to skid-resistance requirements;
3), determine whether the admixture antistripping agent according to the pitch kind;
4) according to porosity with gather materials in the relation of the quality percent of pass that gathers materials below the particle diameter 4.5mm, determine the percent of pass scope;
5) be divided into three parts with gathering materials below the particle diameter 4.75mm, constitute three kinds of aggregate gradings, be respectively:
Grating 1: the mineral aggregate by the 4.75mm square hole screen is 9-21%, mineral aggregate by the 2.36mm square hole screen is 9-13%, mineral aggregate by the 0.6mm square hole screen is 4-17%, mineral aggregate by the 0.3mm square hole screen is 3-12%, mineral aggregate by the 0.15mm square hole screen is 3-8%, and the mineral aggregate by the 0.075mm square hole screen is 2-7%;
Grating 2: the mineral aggregate by the 4.75mm square hole screen is 14-31%, mineral aggregate by the 2.36mm square hole screen is %14-17%, mineral aggregate by the 0.6mm square hole screen is 8-15%, mineral aggregate by the 0.3mm square hole screen is 6-10%, mineral aggregate by the 0.15mm square hole screen is 4-7%, and the mineral aggregate by the 0.075mm square hole screen is 4-7%;
Grating 3: the mineral aggregate by the 4.75mm square hole screen is 11-35%, mineral aggregate by the 2.36mm square hole screen is 8-25%, mineral aggregate by the 0.6mm square hole screen is 5-17%, mineral aggregate by the 0.3mm square hole screen is 4-14%, mineral aggregate by the 0.15mm square hole screen is 3-10%, and the mineral aggregate by the 0.075mm square hole screen is 3-17;
Under 5% identical asphalt quality mark, measure the void in mineral aggregate Vma of the dewatering and noise reduction bituminous mixture of four kinds of gratings respectively, and draw Vma and the graph of relation of the quality percent of pass that gathers materials below the particle diameter 4.75mm, find out the flex point of Vma in the drawings, if the Vma value of this point is greater than 17%, then the particle diameter of this flex point correspondence is the grating value of quality percent of pass for adopting that 4.75mm gathers materials;
6) according to the relation of gather materials specific area and pitch thickness, tentatively determine best pitch thickness
Required asphalt content.Compound is dripped test and abrasion test, draw drippage loss late and aggregate loss rate and asphalt content graph of relation, determine best asphalt content;
7) mixture gap rate Vv and void in mineral aggregate Vma are tested, if Vma less than 17% or Vv less than prescribed limit, then readjust grating, until meeting the requirements;
8) the dewatering and noise reduction bituminous mixture is carried out every performance test,, readjust grating if performance indications do not reach requirement.
Compared with prior art, the invention has the beneficial effects as follows: can effectively get rid of road table rainwater, reduce water smoke and dazzle; Reduce road rumble, compare with common close-graded flexible pavement, noise can reduce more than 3 decibels, compares with cement concrete pavement, can reduce more than 7 decibels; Can improve the skid resistance on moist road surface, significantly reduce the rainy day traffic accident.
Description of drawings:
The present invention has accompanying drawing 1 width of cloth, is dewatering and noise reduction asphalt concrete pavement structural representation
In the accompanying drawing, 1, cement stabilized macadam layer I, 2, cement stabilized macadam layer II, 3, middle grain formula bituminous concrete (concrete) layer, 4, SMA-13 layer, 5, the dewatering and noise reduction supercrust, 6, row's rainwater pipeline, 7, bright curb.
Concrete embodiment:
The present invention will be further described with embodiment with reference to the accompanying drawings below:
The dewatering and noise reduction rigid pavement comprise to down and on the cement stabilized macadam layer 1 of laying successively, 2, middle grain formula asphalt concrete layer 3, SMA-13 layer 4 and surface layer 5, in the surface layer 5 between bright curb 7 and middle grain formula asphalt concrete layer 3 and SMA-13 layer 4, the row's of being embedded with rainwater pipeline 6, cement stabilized macadam layer 1,2 is two-layer, every layer thickness is 15cm, cement stabilized macadam layer 1,2 gather materials for: in whole aggregate quality, the content of cement is 5% of whole aggregate quality, mineral aggregate gradation is in the quality percentage by square hole screen, be respectively: the mineral aggregate by the 31.5mm square hole screen is 100%, mineral aggregate by the 19.0mm square hole screen is 75%, mineral aggregate by the 9.5mm square hole screen is 48%, mineral aggregate by the 4.75mm square hole screen is 27%, mineral aggregate by the 2.36mm square hole screen is 22%, mineral aggregate by the 0.6mm square hole screen is 12%, and the mineral aggregate by the 0.075mm square hole screen is 1%; A middle grain formula asphalt concrete layer 3 is dense-graded asphalt concrete mixture structures, thickness is 5cm, in whole aggregate quality, the content of cement is 5% of whole aggregate quality, mineral aggregate gradation is in the quality percentage by square hole screen, be respectively: the mineral aggregate by the 19.0mm square hole screen is 100%, mineral aggregate by the 16mm square hole screen is 95%, mineral aggregate by the 13.2mm square hole screen is 84%, mineral aggregate by the 9.5mm square hole screen is 70%, mineral aggregate by the 4.75mm square hole screen is 48%, mineral aggregate by the 2.36mm square hole screen is 34%, and the mineral aggregate by the 1.18mm square hole screen is 24%, and the mineral aggregate by the 0.6mm square hole screen is 24%, mineral aggregate by the 0.15mm square hole screen is 10%, and the mineral aggregate by the 0.075mm square hole screen is 6%; Be added with wood fibre in the SMA-13 layer 4, the addition of wood fibre is 0.3% of a SMA-13 raw material quality, void content is 2%～3%, used mineral aggregate is the particulate formula, mineral aggregate gradation is in the quality percentage by square hole screen, be respectively: the mineral aggregate by the 16mm square hole screen is 100%, mineral aggregate by the 13.2mm square hole screen is 95%, mineral aggregate by the 9.5mm square hole screen is 62%, mineral aggregate by the 4.75mm square hole screen is 27%, mineral aggregate by the 2.36mm square hole screen is 20%, mineral aggregate by the 1.18mm square hole screen is 19%, mineral aggregate by the 0.6mm square hole screen is 13%, and the mineral aggregate by the 0.15mm square hole screen is 12%, and the mineral aggregate by the 0.075mm square hole screen is 10%; Surface layer 5 is dewatering and noise reduction supercrusts, by coarse aggregate, fine aggregate and pitch are formed, wherein the mass ratio of coarse aggregate and fine aggregate is 9: 1, the addition of pitch is 5% of a whole aggregate quality, the porosity of the road structure laid of gathering materials is 20%, coarse aggregate is a fat lime rock material, the building stones level is equipped with the quality percentage meter by square hole screen, be respectively: the mineral aggregate by the 19.0mm square hole screen is 100%, mineral aggregate by the 13.2mm square hole screen is 92-100%, mineral aggregate by the 9.5mm square hole screen is 50-80%, described fine aggregate is a fat lime rock material, fine aggregate building stones level is equipped with the quality percentage meter by square hole screen, mineral aggregate by the 4.75mm square hole screen is 9-21%, mineral aggregate by the 2.36mm square hole screen is 9-13%, mineral aggregate by the 0.6mm square hole screen is 4-17%, mineral aggregate by the 0.3mm square hole screen is 3-12%, mineral aggregate by the 0.15mm square hole screen is 3-8%, mineral aggregate by the 0.075mm square hole screen is 2-7%, the top layer high-viscosity modified asphalt of dewatering and noise reduction road upper layer, the top layer is following with B level petroleum bitumen, and the pitch addition is 5% of an aggregate quality.
Claims (2)
1. dewatering and noise reduction asphalt concrete pavement, comprise to down and on the cement stabilized macadam layer of laying (1 successively, 2), middle grain formula asphalt concrete layer (3), SMA-13 layer (4) and surface layer (5), it is characterized in that described cement stabilized macadam layer (1,2) be two-layer, every layer thickness is 10-20cm, cement stabilized macadam layer (1,2) gather materials for: in whole aggregate quality, the content of cement is 5% of whole aggregate quality, mineral aggregate gradation is in the quality percentage by square hole screen, be respectively: the mineral aggregate by the 31.5mm square hole screen is 100%, mineral aggregate by the 19.0mm square hole screen is 68-86%, mineral aggregate by the 9.5mm square hole screen is 38-58%, mineral aggregate by the 4.75mm square hole screen is 22-32%, mineral aggregate by the 2.36mm square hole screen is 16-28%, mineral aggregate by the 0.6mm square hole screen is 8-15%, and the mineral aggregate by the 0.075mm square hole screen is 0-3%;
Grain formula asphalt concrete layer (3) is the dense-graded asphalt concrete mixture structure in described, thickness is 3-8cm, in whole aggregate quality, the content of pitch is 5% of whole aggregate quality, mineral aggregate gradation is in the quality percentage by square hole screen, be respectively: the mineral aggregate by the 19.0mm square hole screen is 100%, mineral aggregate by the 16mm square hole screen is 90-100%, mineral aggregate by the 13.2mm square hole screen is 76-92%, mineral aggregate by the 9.5mm square hole screen is 60-80%, mineral aggregate by the 4.75mm square hole screen is 34-62%, mineral aggregate by the 2.36mm square hole screen is 20-48%, and the mineral aggregate by the 1.18mm square hole screen is 13-36%, and the mineral aggregate by the 0.6mm square hole screen is 7-18%, mineral aggregate by the 0.15mm square hole screen is 5-14%, and the mineral aggregate by the 0.075mm square hole screen is 4-8%.
Be added with wood fibre in the described SMA-13 layer (4), the addition of wood fibre is 0.3% of a SMA-13 raw material quality, void content is 2%～3%: used mineral aggregate is the particulate formula, mineral aggregate gradation is in the quality percentage by square hole screen, be respectively: the mineral aggregate by the 16mm square hole screen is 100%, mineral aggregate by the 13.2mm square hole screen is 90-100%, mineral aggregate by the 9.5mm square hole screen is 50-75%, mineral aggregate by the 4.75mm square hole screen is 20-34%, mineral aggregate by the 2.36mm square hole screen is 15-26%, mineral aggregate by the 1.18mm square hole screen is 14-24%, mineral aggregate by the 0.6mm square hole screen is 10-16%, mineral aggregate by the 0.15mm square hole screen is 9-15%, and the mineral aggregate by the 0.075mm square hole screen is 8-12%
Described surface layer (5) is the dewatering and noise reduction supercrust, the dewatering and noise reduction supercrust is by coarse aggregate, fine aggregate and pitch are formed, wherein the mass ratio of coarse aggregate and fine aggregate is 9-9.5: 1-0.5, the porosity of the road structure laid of gathering materials is 20%, described gathering materials is fat lime rock material, described coarse aggregate is in the quality percentage by square hole screen, be respectively: the mineral aggregate by the 19.0mm square hole screen is 100%, mineral aggregate by the 13.2mm square hole screen is 92-100%, mineral aggregate by the 9.5mm square hole screen is 50-80%, described fine aggregate is a fat lime rock material, fine aggregate building stones level is equipped with the quality percentage meter by square hole screen, mineral aggregate by the 4.75mm square hole screen is %, mineral aggregate by the 2.36mm square hole screen is 9-13%, mineral aggregate by the 0.6mm square hole screen is 4-17%, mineral aggregate by the 0.3mm square hole screen is 3-12%, mineral aggregate by the 0.15mm square hole screen is 3-8%, mineral aggregate by the 0.075mm square hole screen is 2-7%, and the proportioning of concrete aggregate grading requires with abrasion resisting and goal porosity is determined;
Described pitch is high-viscosity modified asphalt and B level petroleum bitumen, the top layer high-viscosity modified asphalt of dewatering and noise reduction supercrust, and the top layer is following with B level petroleum bitumen.
2. dewatering and noise reduction asphalt concrete pavement according to claim 1 is characterized in that describedly determining the proportioning of surface layer aggregate grading with abrasion resisting requirement and goal porosity, determines with following step:
1) as requested, selects the goal porosity gather materials;
2), select to gather materials kind according to skid-resistance requirements;
3), determine whether the admixture antistripping agent according to the pitch kind;
4) according to porosity with gather materials in the relation of the quality percent of pass that gathers materials below the particle diameter 4.5mm, determine the percent of pass scope;
5) be divided into three parts with gathering materials below the particle diameter 4.75mm, constitute three kinds of aggregate gradings, be respectively:
Grating 1: the mineral aggregate by the 4.75mm square hole screen is 9-21%, mineral aggregate by the 2.36mm square hole screen is 9-13%, mineral aggregate by the 0.6mm square hole screen is 4-17%, mineral aggregate by the 0.3mm square hole screen is 3-12%, mineral aggregate by the 0.15mm square hole screen is 3-8%, and the mineral aggregate by the 0.075mm square hole screen is 2-7%;
Grating 2: the mineral aggregate by the 4.75mm square hole screen is 14-31%, mineral aggregate by the 2.36mm square hole screen is 14-17%, mineral aggregate by the 0.6mm square hole screen is 8-15%, mineral aggregate by the 0.3mm square hole screen is 6-10%, mineral aggregate by the 0.15mm square hole screen is 4-7%, and the mineral aggregate by the 0.075mm square hole screen is 4-7%;
Grating 3: the mineral aggregate by the 4.75mm square hole screen is 11-35%, mineral aggregate by the 2.36mm square hole screen is 8-25%, mineral aggregate by the 0.6mm square hole screen is 5-17%, mineral aggregate by the 0.3mm square hole screen is 4-14%, mineral aggregate by the 0.15mm square hole screen is 3-10%, and the mineral aggregate by the 0.075mm square hole screen is 3-17;
Under 5% identical asphalt quality mark, measure the void in mineral aggregate Vma of the dewatering and noise reduction bituminous mixture of four kinds of gratings respectively, and draw Vma and the graph of relation of the quality percent of pass that gathers materials below the particle diameter 4.75mm, find out the flex point of Vma in the drawings, if the Vma value of this point is greater than 17%, then the particle diameter of this flex point correspondence is the grating value of quality percent of pass for adopting that 4.75mm gathers materials;
6) according to the relation of gather materials specific area and pitch thickness, tentatively determine the required asphalt content of best pitch thickness.Compound is dripped test and abrasion test, draw drippage loss late and aggregate loss rate and asphalt content graph of relation, determine best asphalt content;
7) mixture gap rate Vv and void in mineral aggregate Vma are tested, if V
MaLess than 17% or V less than prescribed limit, then readjust grating, until meeting the requirements;
8) the dewatering and noise reduction bituminous mixture is carried out every performance test,, readjust grating if performance indications do not reach requirement.
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104176986A (en) * | 2014-08-14 | 2014-12-03 | 山东建筑大学 | Low-noise asphalt pavement mixture and pavement construction quality control method |
| JP2018028486A (en) * | 2016-08-18 | 2018-02-22 | 西日本高速道路エンジニアリング四国株式会社 | Method for quantitatively analyzing pothole generation risk in drainable pavement |
| CN108341627A (en) * | 2018-02-02 | 2018-07-31 | 杭州市路桥集团股份有限公司 | Noise road surface and its construction method |
| CN108656342A (en) * | 2018-05-25 | 2018-10-16 | 山东省交通科学研究院 | A kind of Cement Stable Macadam Mixture processing method |
| CN110144797A (en) * | 2019-05-14 | 2019-08-20 | 苏州嘉奕晟中小企业科技咨询有限公司 | A kind of asphaltic concrete road laying method with rational gradation composition rubble match ratio |
| CN110144789A (en) * | 2019-04-26 | 2019-08-20 | 东南大学 | A kind of water circulation draining cooling road surface |
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| CN110144789A (en) * | 2019-04-26 | 2019-08-20 | 东南大学 | A kind of water circulation draining cooling road surface |
| CN110144789B (en) * | 2019-04-26 | 2021-06-25 | 东南大学 | Water circulation drainage cooling road surface |
| CN110144797A (en) * | 2019-05-14 | 2019-08-20 | 苏州嘉奕晟中小企业科技咨询有限公司 | A kind of asphaltic concrete road laying method with rational gradation composition rubble match ratio |
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| CN102134825B (en) | 2012-07-04 |
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