CN108221539A - A kind of asphalt pavement structure, resonant rubbilizing composite base and its manufacturing method - Google Patents
A kind of asphalt pavement structure, resonant rubbilizing composite base and its manufacturing method Download PDFInfo
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- CN108221539A CN108221539A CN201810053077.3A CN201810053077A CN108221539A CN 108221539 A CN108221539 A CN 108221539A CN 201810053077 A CN201810053077 A CN 201810053077A CN 108221539 A CN108221539 A CN 108221539A
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- composite base
- resonant rubbilizing
- layer
- rubbilizing
- concrete
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C7/00—Coherent pavings made in situ
- E01C7/08—Coherent pavings made in situ made of road-metal and binders
- E01C7/32—Coherent pavings made in situ made of road-metal and binders of courses of different kind made in situ
Abstract
A kind of asphalt pavement structure, resonant rubbilizing composite base and its manufacturing method, belong to asphalt pavement construction field.Method includes：Lean concrete is poured on roadbed to form lean concrete layer, and vibration insulation is formed by raw material of the slurry of cement and aggregate chips on lean concrete layer.The casting concrete on vibration insulation forms concrete slab.Resonant rubbilizing processing is carried out to concrete slab makes concrete slab be broken, to obtain resonant rubbilizing layer.Poor mixed mud layer is integrated with resonant rubbilizing layer to form bituminous paving resonant rubbilizing composite base.Resonant rubbilizing composite base proposed by the present invention is respectively provided with comprehensive coordination effect, can keep for good and all being compatible with asphalt surface course, make asphalt surface course that fatigue cracking not occur to the mechanical characteristic of bituminous paving, functional characteristic and its long-term behaviour Decay Law and damaging features；It is more adaptable with roadbed bearing capacity, damp condition and soil property type simultaneously；Ensure that bituminous paving realizes the long-life.
Description
Technical field
The present invention relates to asphalt pavement construction fields, multiple in particular to a kind of asphalt pavement structure, resonant rubbilizing
Close base and its manufacturing method.
Background technology
Past, Chinese cement road and asphalt roads are firstly the need of solving the problems, such as sensible get rich, but with new era state
People's economic development, the shorter existing road of service life cannot meet the production of reality, living needs.On the one hand, Fu Qi
The people come will also carry the huge overhaul cost accumulated throughout the year for a long time, and a large amount of cement concrete pavement has become problem
It is badly in need of transformation in road surface.On the other hand, existing road transformation and overhaul affect the traffic trip of the people again.So build length
Service life asphalt roads is the needs of new era.
At present, domestic design and building technology can only achieve short-term life level.This is Chinese Bitumens pavement structure technology
Most prominent short slab.This problem is mainly since China's Asphalt Pavement Base is using the semi-rigid of single cement stabilized macadam
Base.It is structurally characterized in that easy construction, but performance and service life have different degrees of be limited.Length is built to realize
The structure of service life bituminous paving and raising performance, highway in China circle scientific and technical personnel constantly study and explore, do not have also so far
Practicable technical solution is found, difficulty is very big.
Invention content
For improve, even solve the problems, such as it is of the prior art at least one, the present invention propose a kind of asphalt pavement structure,
Resonant rubbilizing composite base and its manufacturing method.
The invention is realized in this way：
In a first aspect, the embodiment of the present invention provides a kind of method for manufacturing resonant rubbilizing composite base.
The method of manufacture resonant rubbilizing composite base is used to form in bituminous paving.
The method of manufacture resonant rubbilizing composite base includes：
Lean concrete is poured on roadbed to form lean concrete layer, and blocking resonance is formed on lean concrete layer
The vibration insulation that wave transmits；
The casting concrete on vibration insulation forms concrete slab；
Resonant rubbilizing processing is carried out to concrete slab makes concrete slab be broken, to obtain resonant rubbilizing layer.
In other one or more examples, formed the concrete grade of concrete slab C30 and more than.
In other one or more examples, lean concrete marked as C10~C15.
In other one or more examples, it is below 18cm that concrete slab forms grain size by resonant rubbilizing processing
Crushed stone.
In other one or more examples, the thickness of concrete slab is 18~24cm.
In other one or more examples, the crushed stone that concrete slab is formed after resonant rubbilizing is handled is formed
The structure of top embedded squeezing, the oblique interlocking in lower part, and embedded squeezing partially away from roadbed, the part of oblique interlocking is adjacent to roadbed.
In other one or more examples, the method that vibration insulation is formed on lean concrete layer includes：In poor coagulation
Soil layer is laid with isolation film, makes the slurry of cement and aggregate chips in isolation film Self-leveling.
In second aspect, an embodiment of the present invention provides a kind of resonant rubbilizing composite bases.
Resonant rubbilizing composite base is fabricated by the method for aforementioned manufacture resonant rubbilizing composite base.Resonance
Rubblization composite base includes：Lean concrete layer, vibration insulation and resonant rubbilizing layer.
In other one or more examples, the resonant rubbilizing composite base thickness is 50cm.
In the third aspect, an embodiment of the present invention provides a kind of asphalt pavement structures.
Asphalt pavement structure includes：It is formed in the side according to aforementioned manufacture resonant rubbilizing composite base on roadbed
On resonant rubbilizing composite base that method is fabricated, the resonant rubbilizing layer being formed in resonant rubbilizing composite base
Asphalt surface course.
Advantageous effect：
Resonant rubbilizing composite base provided in an embodiment of the present invention has resonant rubbilizing layer.It is by by new cement plate
Resonance is generated with crushing mechanism, new cement concrete slab " fragmentation " is formed with top embedded squeezing, the stabilization of the oblique interlocking in lower part
The functional layer of structure.The strength and stiffness and the modulus of resilience of resonant rubbilizing layer are above graded broken stone layer.In addition, resonance is broken
Resonant rubbilizing layer in petrochemical industry composite base is combined the architectural characteristic for foring and coupling hardness with softness with lean concrete layer.Wherein, altogether
The rubblization layer that shakes has relatively flexible characteristic, and lean concrete layer has the characteristic of relative stiffness.Lean concrete layer is to resonance
Rubblization layer plays support and protective effect.Without using binder course between resonant rubbilizing layer and lean concrete layer, do not need to press
Road and its compacted machine, greatly reduce operating expenses.
In addition, resonant rubbilizing layer and lean concrete layer being integrated of optimum organization, realize so as to reaching " hard and soft simultaneously
Ji " resonant rubbilizing composite base, and then can completely compatible asphalt surface course and roadbed, ensure asphalt surface course structure not because tired
Labor cracks and damages, and realizes the long-life that bituminous paving uses.Using the resonance rubble provided by the present invention for bituminous paving
Change composite base, then asphalt thickness can be expanded in surface Laying Asphalt Surface Course by existing asphalt pavement construction mode
Permissible range can also reserve the repaving asphalt coat again for extending the service life using the later stage, reduce the initial investment on long-life road.Pass through
Such mode obtains bituminous paving, can reach resonant rubbilizing composite base and for good and all be compatible with asphalt surface course, make bituminous sheaths
Fatigue cracking does not occur for layer, realizes the long-life of bituminous paving.
Description of the drawings
It in order to illustrate the technical solution of the embodiments of the present invention more clearly, below will be to needed in the embodiment attached
Figure is briefly described, it should be understood that the following drawings illustrates only certain embodiments of the present invention, therefore is not construed as pair
The restriction of range, for those of ordinary skill in the art, without creative efforts, can also be according to this
A little attached drawings obtain other relevant attached drawings.
Fig. 1 provides the schematic diagram of asphalt pavement structure for present invention implementation；
The structure diagram of Fig. 2 bituminous pavings of the prior art.
Icon：100- asphalt pavement structures；200- resonant rubbilizing composite bases；101- roadbeds；102- lean concrete layers；
103- vibration insulations；104- resonant rubbilizing layers；105- asphalt surface courses；301- Asphalt Pavement Bases.
Specific embodiment
Purpose, technical scheme and advantage to make the embodiment of the present invention are clearer, below in conjunction with the embodiment of the present invention
In attached drawing, the technical solution in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is
Part of the embodiment of the present invention, instead of all the embodiments.The present invention being usually described and illustrated herein in the accompanying drawings is implemented
The component of example can be configured to arrange and design with a variety of different.Therefore, below to provide in the accompanying drawings the present invention reality
The detailed description for applying example is not intended to limit the range of claimed invention, but is merely representative of the selected implementation of the present invention
Example.Based on the embodiments of the present invention, those of ordinary skill in the art are obtained without creative efforts
Every other embodiment, shall fall within the protection scope of the present invention.
It should be noted that：Similar label and letter represents similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined in a attached drawing, does not then need to that it is further defined and explained in subsequent attached drawing.
In the description of the present invention, it should be noted that term " " center ", " on ", " under ", "left", "right", " vertical ",
The orientation or position relationship of the instructions such as " level ", " interior ", " outer " are based on orientation shown in the drawings or position relationship or are somebody's turn to do
Invention product using when the orientation usually put or position relationship, be for only for ease of the description present invention and simplify description, without
It is instruction or implies that signified device or element there must be specific orientation, with specific azimuth configuration and operation, therefore not
It is understood that as limitation of the present invention.In addition, term " first ", " second ", " third " etc. are only used for distinguishing description, and cannot manage
It solves to indicate or implying relative importance.
In the description of the present invention, it is also necessary to which explanation is unless specifically defined or limited otherwise, term " setting ",
" installation ", " connected ", " connection " should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected or one
Connect to body；Can be mechanical connection or electrical connection；It can be directly connected, it can also be indirect by intermediary
It is connected, can is the connection inside two elements.For the ordinary skill in the art, on being understood with concrete condition
State the concrete meaning of term in the present invention.
In the present invention unless specifically defined or limited otherwise, fisrt feature second feature it " on " or it " under "
It can be in direct contact including the first and second features, it is not to be in direct contact but pass through it that can also include the first and second features
Between other characterisation contact.Moreover, fisrt feature second feature " on ", " top " and " above " including first spy
Sign is right over second feature and oblique upper or is merely representative of fisrt feature level height higher than second feature.Fisrt feature exists
Second feature " under ", " lower section " and " following " immediately below second feature and obliquely downward or be merely representative of including fisrt feature
Fisrt feature level height is less than second feature.
In the present invention, in the case of not contradiction or conflict, all embodiments, embodiment and feature of the invention
It can be combined with each other.In the present invention, conventional unit, component etc., both can be commercially available, can also be according to of the invention public
The content self-control opened.In the present invention, in order to protrude the emphasis of the present invention, to some conventional operations and unit, component
The omission of progress is only briefly described.
Refering to Fig. 1 to Fig. 2.
Present embodiments provide a kind of method for manufacturing resonant rubbilizing composite base 200.Manufacture provided by the invention is altogether
The method of rubblization composite base 200 of shaking can be used for the construction of various roads, however, it is preferred to be used to form in asphalt road
Face.
The manufacturing method of resonant rubbilizing composite base 200 includes the following steps：
Step S101, lean concrete is poured on roadbed 101 to form lean concrete layer 102, and in lean concrete layer
The vibration insulation 103 that blocking resonance wave transmits is formed on 102.
Wherein, the material for forming vibration insulation 103 can be the slurry of cement and aggregate chips.Better vibration isolation material can also be used
The bed of material.
Lean concrete layer 102 is to pour to cure using lean concrete.Lean concrete (LeanConcrete, LC) be by
Slightly, a kind of material that fine aggregate is formulated with certain cement and water.It is steady that its intensity is much higher than two ash stability pellet, cement
Determine the semi-rigid sub-base materials such as rubble.Lean concrete has higher strength and stiffness, and water stability is good, erosion resistibility is strong.It is poor
For concrete since cementitious matter content is few, voidage is generally large, is conducive to the discharge of interfacial water.Lean concrete can mitigate soil matrix
Inhomogeneous deformation can eliminate the adverse effect of road pavement.In addition, lean concrete can also utilize the water for the stall production that occupies a narrow space
Mud, it is possible to use the locality of substandard gathers materials.Lean concrete layer 102 can be used as permanent protection and supporting structure, due to this
The layer position of layer is underlying, itself will not generate drying shrinkage and temperature contracting cracking and damage.
The vibration insulation 103 formed on lean concrete layer 102 is mainly constructed to subsequently carrying out in resonance fragmentation processing
Resonance wave stopped or blocked.It can be to avoid damage of the resonance wave to lean concrete layer 102 by vibration insulation 103.It should
, it is noted that the setting of vibration insulation 103 is set based on technological requirement, substantially and non-formation composite construction layer
Necessary structure sheaf.
Resonate 102 being integrally formed of crushable layer and lean concrete layer in the above manner, so as to the compatible drip being laid with
Green surface layer structure, it is ensured that asphalt surface course will not be damaged because of fatigue cracking.
Step S102, the casting concrete on vibration insulation 103 forms concrete slab.
Described is used for by pouring the concrete adoption of existing standard joints cement sheet metal forming to form concrete slab.All
Concrete slab is formed after up to the final set phase.Used concrete can be commerical ready-mixed concrete material, and not mix road surface generally
Solidifying soil material is as preferred material.Wherein, the commerical ready-mixed concrete material resistant Compressive Strength has certain restriction requirement, and
Pavement concrete material resistant Compressive Strength and flexural strength are respectively provided with certain restriction requirement.Therefore, in cast-in-place concrete, quotient
Product concrete material has better advantage, for example, price is lower.
In resonant rubbilizing composite base 200 proposed by the invention, formed the concrete grade of concrete slab in C30 and
Above, lean concrete layer marked as C10~C15, can arbitrarily be selected in signified scope by this field designer.
In addition, the thickness based on adjustment resonant rubbilizing composite base 200, to meet the requirement of Pavement Design, construction, is mixed
Any value for 18~24cm may be used in the thickness of concrete board.
It, can be in lean concrete layer table before manufacture vibration insulation 103 on lean concrete based on the demand of some constructions
Face is laid with isolation film, then remanufactures vibration insulation 103.In other words, the method that vibration insulation 103 is formed on lean concrete layer 102
Including：Isolation film is laid in lean concrete layer 102, then remanufactures vibration insulation 103.In some examples, vibration insulation 103 can be adopted
With cement and the slurry of aggregate chips.Preferably, the slurry has self-leveling, to reduce its difficulty of construction.
Step S103, resonant rubbilizing processing is carried out to concrete slab makes concrete slab be broken, to obtain resonance rubble
Change layer 104.
After concrete slab is formed, by resonant rubbilizing equipment, process, it is made to be broken, so as to form resonance
Rubblization layer 104.Technique known for inventor may be used in resonant rubbilizing equipment, technique or current general mode is come in fact
It applies.
More preferably, it is oblique that concrete slab is formed after resonant rubbilizing is handled crushed stone forms top embedded squeezing, lower part
The structure of interlocking, and embedded squeezing partially away from roadbed 101, the part of oblique interlocking is adjacent to roadbed 101.Make resonant rubbilizing layer
104 have upper strata embedded squeezing, the structure of the oblique interlocking of lower floor, can play the purpose of stabilizing cement concrete material structure sheaf, make resonance broken
Petrochemical industry layer 104 is more stable.The rock-steady structure of oblique interlocking, makes its own not generate internal stress, and chance external force only uniformly synchronizes micro-
Deformation, and without differential settlement phenomenon.In some instances, 104 top Cement Concrete pellet layer of resonant rubbilizing layer can be oozed for water
Permeable layers play the role of suction and put tidewater, pavement structure is made not generate water damage.Cement Concrete oblique interlocking layer in lower part, which is that water is impermeable, to be oozed
Layer, plays impermeable role between the body levels of road, prevents Moisture Damage.
Resonant rubbilizing layer 104 belongs to flexible layer property with asphalt surface course 105, and the pellet size of the two contact surface is close,
It can engage each other closely, form no shiny surface connection, do not set any adhesion coating without sliding phenomenon；And the thickness of repaving asphalt coat
Degree need to only meet the thickness of the intensive force area of road deck, can also reserve that repaving asphalt coat extends and uses the longevity again using the later stage
The design of life.
Resonance is broken to be completed using resonance crusher device.The frequency of resonance crusher device is in 44Hz~50Hz, amplitude
2Cm, vibration tup tap concrete slab with frequency low-amplitude, and resonance amplitude below concrete slab tup is made to reach maximum value, concrete
Because oblique shear power makes top plate body be separated into natural grading Cement Concrete pellet, lower part plate body generates oblique interlocking and splits intralamellar part
Line simultaneously has stronger bearing capacity, is regularly extended as vibration is rapid, until cement plate boundary.Since impact force is smaller,
And crackle only expands to boundary, so to the lean concrete layer 102 in base and roadbed 101 without any damage.
Currently, some so-called flexbile bases are also used in the prior art.Its base mainly uses graded broken stone
It forms.The construction of graded broken stone layer is that the rolling by stone material, the embedded squeezing to rubble are closely molded；Complex manufacturing technology, excessively according to
Rely the experience and manufacturing technology level of people, be extremely difficult to the purpose that the embedded squeezing " stablized " molding is utilized；Its expenditure of construction is also special
It is not high.
It is suggested, and resonant rubbilizing composite base by a kind of above-mentioned resonant rubbilizing composite base 200 of manufacturing method
Layer 200 includes：Lean concrete layer 102, vibration insulation 103 and resonant rubbilizing layer 104.Lean concrete layer 102, vibration insulation 103
And resonant rubbilizing layer 104 is arranged successively.
In some optional examples, 200 thickness of resonant rubbilizing composite base is 50cm.Certainly, resonant rubbilizing is compound
The thickness of base 200 neatly can also be adjusted and be changed according to the actual needs.For example, lean concrete layer can be adjusted
The thickness of thickness and concrete slab.
As a kind of use-case, a kind of asphalt pavement structure 100 is additionally provided in the embodiment of the present invention.Asphalt pavement structure
100 include：The method according to above-mentioned manufacture resonant rubbilizing composite base 200 on roadbed 101 is formed in be fabricated
Resonant rubbilizing composite base 200, on the resonant rubbilizing layer 104 that is formed in resonant rubbilizing composite base 200
Asphalt surface course 105.
The bituminous paving service life is effectively improved and improves according to asphalt pavement structure 100 is obtained with upper type.In addition, this
The construction method of the bituminous paving proposed is invented, substantially reduces the compacted machine expense and context layer expense.
For generally, asphalt pavement structure provided in an embodiment of the present invention, resonant rubbilizing composite base and its manufacture
Method has the following advantages：
(1) new joints cement concrete slab is broken into broken innovative technology using resonance and realizes resonant rubbilizing layer, as drip
The core layer of green road surface composite base, the powerful of the composite base are to realize flexbile base, semi-rigid type base and rigid base
The synthesis of each functional layer advantage of layer, can for good and all be compatible with asphalt surface course, adapt to the various environment of road foundation in a wider range
Condition breaches the technical barrier for building Long Life Asphalt Pavement.
(2) mode of construction of bituminous sheaths is made to be changed from traditional construction type to manufacture type, realize mechanization, batch production,
Standardization ground manufacture Asphalt Pavement Base；It changes over and relies on the technical merit of people and build the mode of asphalt roads, ensure that
The consistency and controllability of bituminous paving build guality.
(3) resonant rubbilizing composite base is utilized, cost saved the initial investment expense of long-life asphalt roads.
It is on the other side to be, the defects of existing asphalt pavement structure generally existing service life is shorter.Its structure usually exists
Asphalt Pavement Base is formed on roadbed, is then laid with asphalt surface course on Asphalt Pavement Base again.Wherein, Asphalt Pavement Base is normal
Three kinds of Chang You rigid bases, semi-rigid type base and flexbile base.
For example, some bituminous pavings use pellet class base, bituminous paving areflexia crack problem, but asphalt surface course is born
The curved drawing effect of bigger, the damage of asphalt surface course fatiguability.In addition, each structure sheaf of bituminous paving and roadbed all become there may be permanent
Shape.Some bituminous pavings use cement concrete base, have compared with high bearing capacity；But this class formation water removal cement concrete road
Outside the common damage in face, if main disease cement concrete slab seam crossing asphalt surface course reflection crack and asphalt surface course permanently become
Shape.
Substantially, resonant rubbilizing composite base proposed by the present invention is shown as by the firm special composite base of upper soft gradual change
Layer, the comprehensive performance having：Enough bearing capacitys, antifatigue cracking performance, enough durability and water stability also have
Enough permanent deformation resistances；Really become Long Life Asphalt Pavement base.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, that is made any repaiies
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of method for manufacturing resonant rubbilizing composite base, is used to form in bituminous paving, which is characterized in that the method
Including：
Lean concrete is poured on roadbed to form lean concrete layer, and blocking resonance is formed on the lean concrete layer
The vibration insulation that wave transmits；
The casting concrete on the vibration insulation forms concrete slab；
Resonant rubbilizing processing is carried out to the concrete slab makes the concrete slab be broken, to obtain resonant rubbilizing layer.
2. the method for manufacture resonant rubbilizing composite base according to claim 1, which is characterized in that form the coagulation
The concrete grade of native plate C30 and more than.
3. the method for manufacture resonant rubbilizing composite base according to claim 1, which is characterized in that the lean concrete
Marked as C10~C15.
4. the method for manufacture resonant rubbilizing composite base according to claim 1, which is characterized in that the concrete slab
The crushed stone that grain size is below 18cm is formed by resonant rubbilizing processing.
5. the method for the manufacture resonant rubbilizing composite base according to claim 1 or 4, which is characterized in that the coagulation
The thickness of native plate is 18~24cm.
6. the method for manufacture resonant rubbilizing composite base according to claim 1, which is characterized in that the concrete slab
The crushed stone formed after resonant rubbilizing is handled forms top embedded squeezing, the structure of the oblique interlocking in lower part, and the part of embedded squeezing
Far from the roadbed, the part of oblique interlocking is adjacent to the roadbed.
7. the method for manufacture resonant rubbilizing composite base according to claim 1, which is characterized in that in the poor coagulation
The method that the vibration insulation is formed on soil layer includes：Isolation film is laid in the lean concrete layer, makes the slurry of cement and aggregate chips
Material is in the isolation film Self-leveling.
8. a kind of resonant rubbilizing composite base, which is characterized in that the resonant rubbilizing composite base passes through such as claim
The method of manufacture resonant rubbilizing composite base described in any one of 1-7 is fabricated, the resonant rubbilizing composite base
Including the lean concrete layer, vibration insulation and resonant rubbilizing layer being sequentially distributed.
9. resonant rubbilizing composite base according to claim 8, which is characterized in that the resonant rubbilizing composite base
Thickness is 50cm.
10. a kind of asphalt pavement structure, which is characterized in that including：Be formed on roadbed according to any in claim 1-7
Described in manufacture resonant rubbilizing composite base method be fabricated resonant rubbilizing composite base, be formed in it is described common
The asphalt surface course on the resonant rubbilizing layer to shake in rubblization composite base.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810053077.3A CN108221539B (en) | 2018-01-19 | 2018-01-19 | A kind of asphalt pavement structure, resonant rubbilizing composite base and its manufacturing method |
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| CN201810053077.3A CN108221539B (en) | 2018-01-19 | 2018-01-19 | A kind of asphalt pavement structure, resonant rubbilizing composite base and its manufacturing method |
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| CN112779834A (en) * | 2020-12-31 | 2021-05-11 | 中交第三航务工程局有限公司江苏分公司 | Resonance rubblizing process for old cement concrete pavement |
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