CN101691736A - Construction method for reconstructing old concrete pavement by paving asphalt-concrete surface layer - Google Patents

Construction method for reconstructing old concrete pavement by paving asphalt-concrete surface layer Download PDF

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Publication number
CN101691736A
CN101691736A CN200910307584A CN200910307584A CN101691736A CN 101691736 A CN101691736 A CN 101691736A CN 200910307584 A CN200910307584 A CN 200910307584A CN 200910307584 A CN200910307584 A CN 200910307584A CN 101691736 A CN101691736 A CN 101691736A
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China
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concrete
old
pavement
concrete pavement
construction
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CN200910307584A
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Chinese (zh)
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王海宝
乔晓延
陈兴
周延山
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中交二公局第六工程有限公司
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Priority to CN200910307584A priority Critical patent/CN101691736A/en
Publication of CN101691736A publication Critical patent/CN101691736A/en

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Abstract

The invention relates to pavement reconstruction, in particular to a construction method for reconstructing an old concrete pavement by paving an asphalt-concrete surface layer, which is characterized by comprising the following: 1) a step of old concrete pavement processing, which comprises breaking and removing damages blocks and pouring again, mudjacking the old concrete pavement, impacting and rolling old concrete pavement, crack pouring and replacing hardened verges; and 2) a step of paving a asphalt-concrete pavement, which comprises spraying a prime coat and viscous oil and spreading the asphalt-concrete pavement. The breaking and removing damages blocks and pouring again comprise: breaking and removing seriously damaged blocks of the old pavement; shoveling loose parts of an old cement stabilized base away, and pouring concrete in a 15-centimeter thickness which is the same as that of the old base for leveling; filling up the pits on the base with cement mortar and tamping the filled cement mortar; and pouring a 24-centimeter C35 concrete pavement board. In the method, the requirements on cost, quality, construction period, environmental protection and the like are met when the old concrete pavement is reconstruction by paving the asphalt-concrete pavement.

Description

Old cement concrete pavement transformation overlays asphalt concrete surface construction method
Technical field
The present invention relates to pavement construction, particularly old cement concrete pavement transformation overlays asphalt concrete surface construction method.
Background technology
Exist a large amount of old cement concrete pavements in China, these road surfaces are along with the traffic volume increases year by year, disconnected plate appears in many road surfaces, cause purt mud, hole groove, faulting of slab ends, the disease phenomenon such as arch upward, maintenance rate is bigger, has a strong impact on the comfortableness of driving, and the speed of a motor vehicle is difficult to improve, the traffic capacity descends, and has influence on local economic development.
It is in recent years thing that old cement concrete pavement transformation is overlayed asphalt concrete surface construction technology, differs because of related road surface is irregular, and adopting the same method is difficult to guarantee to its quality of some pavement construction.Under therefore most situation all is to formulate corresponding scheme at the actual conditions of locality.
The technical scheme commonly used of domestic old cement concrete pavement transformation at present is mainly: A. all abolishes former road surface, again making cement concrete or stabilization gravel; B. directly overlay the asphalt concrete layer; C. after overlaying reinforcement materials such as geotextiles, glass fiber grid on the former road surface, overlay the asphalt concrete layer.Abroad, adopt rubblization to handle as the old cement concrete pavement transformation of the U.S. more, with MHB-15 type multi-hammer head breaker (special equipment) old cement concrete pavement is carried out fragmentation, roll smooth again with steel roller, spill the cloth mulseal, Deng spreading aggregate chips behind the breakdown of emulsion, use the dual-steel wheel road roller compacting then, repave and build asphalt concrete pavement.Above technical scheme is compared with our scheme and is all existed certain limitation, one construction costs height, long construction period; Its two workmanship is difficult to guarantee; It three can not satisfy the environmental protection related request.
Summary of the invention
The purpose of this invention is to provide a kind of old cement concrete pavement transformation and overlay asphalt concrete surface construction method,, satisfy the requirement of aspects such as cost, quality, duration, environmental protection so that when old cement concrete pavement transformation overlayed the asphalt concrete face.
The object of the present invention is achieved like this, and old cement concrete pavement transformation overlays asphalt concrete surface construction method, it is characterized in that: specifically comprise the steps:
1) former cement concrete pavement is handled
Abolishing and build again of A, damaged plate
B, old cement concrete pavement mud jacking
C, former road shocks roll
D, the cementation of fissures
E, replacing hardened verge
2) overlay asphalt concrete pavement
F, spill the saturating layer of cloth, sticking layer oil
G, the asphalt concrete surface layer paves
In the described A step abolishing with building again of damaged plate comprised:
Plate to the old pavement badly broken carries out the fragmentation removing;
Being rooted out, build 15cm for part loosening on the old cement stabilized base course mends with thick C15 cement concrete with old basic unit and puts down;
To the hole groove in the basic unit then with cement mortar fill and lead up, tamping;
Build the C35 concrete road slab of thick 24cm.
In the described B step old cement concrete pavement mud jacking is comprised:
With cement: flyash: expansion agent: early strength admixture: water=1: 2: 0.08: carry out mortar construction proportioning at 0.06: 1.2,
Wherein cement is class g cement P.032.5, and early strength admixture is H 2Type complex accelerator, expansion agent are UEA, and expansion rate is 0.03%~0.05%;
To the purt mud of the need mud jacking plate that comes to nothing, with red lacquer mark bore position;
Drill through the hole of diameter 5cm with drill bit 51 * 300mm rig, 4~5 holes of every twist drill, drilling depth is to basic unit's end face or subbase bottom surface;
Evenly mix and stir mortar with the mortar lorry mounted mixer by the construction match ratio;
Be pressed into the mortar that mixes and stirs at the bottom of the concrete plate or the roadbed end face by boring good mortar hole with mudjack, pressure is controlled at 0.5~1.0Mpa, in adjacent holes or seam, overflow slurry or do not have the slurry of overflowing panel block and slightly rise till;
After slurry is stablized about 10 minutes, extract stopper, grout hole is obturaged with mortar or mortar.
In the described C step former road shocks rolled and comprises:
Utilize the beater wheel of impact roller that plate is carried out impact grinding;
Utilize the weight crushing engine old cement concrete plate to be broken into the fine grained chippings of 7.5mm~20mm;
On the good road surface of fragmentation, spill cloth 2.5-3.0kg/m 2Mulseal, wait breakdown of emulsion after, the spreading specification is the aggregate chips of 3-5mm, consumption 5-6m 3/ 1000m 2, again with dual-steel wheel road roller roll smooth after, overlay asphalt concrete.
The cementation of fissures comprises in the described D step:
Pavement crack to punching press forms carries out the cementation of fissures with SK-70 pitch.
Changing hardened verge in the described E step comprises:
All broken with LK3000 road surface excavator hardened verge, excavate former cement stabilized macadam base and soil matrix until runway basic unit bottom surface absolute altitude with excavator, after rolling leveling, at the every 75cm of carriageway plate side one of tension bars of longitudinal joints is set, prop up template, repave one deck every oozing geotextiles waterproofing course, the thick medium coarse sand topping of making 3cm, the thick graded broken stone of backfill 10cm, build 24cm C35 concrete again, overlay asphalt concrete then;
To being input in the control storage of automatic gauge cement, water and various gathering materials, after the trial mix check is errorless, formally mix and stir production;
Concrete mixed material is paved;
To the compound that paves, vibrate equably with poker vibrator and vibration board rapidly;
With further dilatory jolt ramming of the beam that vibrates and preliminary leveling;
Plucking facility plucking is adopted along the horizontal wall inscription direction in floating back, surface;
In time spray the plastic sheeting curing agent after the concrete surfacing finishes and carry out health.
Spill the saturating layer of cloth in the described F step, sticking layer oil comprises:
Former concrete road surface after the punching press makes an overall screening, and removes the floating ash of former concrete road surface, adheres to broken and loosening concrete piece in earth and the hole groove, longitudinally lines up oblique line with the forest extinguishing blast fan again dirt is blown off, and washes with waterwheel at last;
Spray first pass mulseal priming oil, the sprinkling amount is 0.3-0.4L/m 2
After parked 24 hours, spray this width of cloth sticking layer oil again, paved preceding 24 hours at the asphalt concrete levelling course, full width is spilt sticking layer oil second time, spills the cloth amount and also is 0.3-0.4L/m 2
The asphalt concrete surface layer that paves in the described G step comprises:
Get the raw materials ready, bituminous mixture adopts Japanese Nigata NP3000CA and Nigata NP2000CA, is mixed and stirred by two blending stations;
The pitch that paves carries out first pressing, and the asphalt temperature that paves is at 125 ℃~145 ℃, shakes with vibratory roller and presses twice, and speed is 5km/h;
The multiple pressure is not less than 105 ℃ of elder generations and shakes with dual-steel wheel road roller and press twice, and speed 6-7km/h is 5-6km/h with pneumatic-tired rollers YL-25 and twice speed of each static pressure of pneumatic-tired rollers YL-26 again;
Final pressure, being not less than 105 ℃ is 8km/h with twice speed of vibratory roller static pressure.
Advantage of the present invention is: owing to adopt ballistic method that old cement concrete pavement is handled, overlay the constructure scheme of asphalt concrete then, compare with conventional scheme, reduced cost, shortened the duration, obtained good economic benefit.Respond well behind the asphalt concrete pavement making, cling property is good, does not have rut, passes distortion, does not produce the bellding phenomenon, and the cracking resistance on road surface also obviously improves, and the road surface embedding of former concrete is squeezed firm, does not have the working stress that influences asphalt concrete pavement.Solve technical problem such as asphalt concrete layer reflection crack and differential settlement and reduced problems such as construction costs, long construction period, reached good effect.
The specific embodiment
One, former cement concrete pavement is handled
1, abolishing and building again damaged plate
1), utilizes Hydraulic pick, pneumatic pick to carry out fragmentation and remove to plate HYUNDAI quartering hammer, hammer drill and the excavator of old pavement badly broken (differential settlement, pitted skin, purt mud, faulting of slab ends etc.).Being rooted out, build 15cm for part loosening on the old cement stabilized base course mends with thick C15 cement concrete with old basic unit and puts down; Hole groove in the basic unit then with cement mortar fill and lead up, tamping.Build the C35 concrete road slab of thick 24cm and former concrete road slab then and be connected compact, smooth-going, surface galling is beneficial to asphalt concrete and connects.
2) raw material
A. cement is selected intensity height, contraction is little, abrasion resistance is strong, frost resistance is good P.O42.5 class g cement for use.
B. coarse aggregate is selected the rubble hard, wear-resisting, clean, that grating is good for use.
C. medium coarse sand is selected cleaning, hardness height, sand that mud content is little for use.
2, old cement concrete pavement mud jacking
1) mortar construction match ratio
Cement: flyash: expansion agent: early strength admixture: water=1: 2: 0.08: 0.06: 1.2
(wherein: P.032.5 class g cement, H 2The type complex accelerator, UEA expansion agent, expansion rate are 0.03%~0.05%.)
2),, mark bore position with red lacquer to the purt mud of the need mud jacking plate that comes to nothing according to pavement behavior investigation.(drill bit 51 * 300mm) drills through the hole (4~5 holes of every twist drill) of diameter 5cm, and drilling depth is to basic unit's end face or subbase bottom surface with the Yellow River whirlwind 125 type rigs.Evenly mix and stir mortar with the mortar lorry mounted mixer by the construction match ratio, precipitation and excreting water phenomenon can not be arranged.
Be pressed into the mortar that mixes and stirs at the bottom of the concrete plate or the roadbed end face by boring good mortar hole with GYZJ-2315C type mudjack, pressure is controlled at 0.5~1.0Mpa, in adjacent holes or seam, overflow slurry or do not have the slurry of overflowing panel block and slightly rise till.The hole of slurry in time will overflow in the filling process with round log plug sealing, and build-up of pressure is excessively lost to prevent to flow backwards, and after slurry was stable in about about 10 minutes, extracts stopper, with mortar or mortar grout hole is obturaged.In filling process,, prevent the earth shoulder cracking destruction by control grouting time and pressure.Generally need 3 day time to treat that mortar intensity can open to traffic after reaching 3Mpa.Detect deflection value this moment, when seam both sides flexure difference surpasses 0.05mm, answer the redrilling ftercompction.
3, former road shocks rolls
1) to do skin coat be one of cement concrete most common technique of repairing to asphalt concrete, but the serious problems that it brings are reflection cracks, reflection crack is that cement concrete pavement primary fracture or seam see through upwards diffusion and producing of overlay, it produces stress vertical and that horizontal movement causes, and the pitch overlay is destroyed.Be control overlay reflection crack, must not pass through " fragmentation " and " reinforcing " before the Laying Asphalt Surface Course, make produce between former concrete road surface plate and the piece gather materials that embedding is squeezed, combine between each deck of road surface and roadbed tight, make former concrete road slab structure proximate in flexbile base, reduce the stress of rigid pavement, play the effect of buffering, inhibition even elimination reflection crack stress,, make the asphalt concrete overlay more firm for former road surface provides supporting preferably.The broken scheme of punching press mainly utilizes the beater wheel of impact roller that plate is carried out impact grinding, and rolls firmly simultaneously, makes the broken plate can compacted mutually, acting in conjunction, reduces the reflection crack of former plate to upper layer to a great extent.
2) crushing appliance
Carry out fragmentation with crushing appliance pentagon compacting machine and impact densifying-machine, the impact force that machine produces is 4000kN, the filler that can be used for bed thickness 50-70cm rolls, not only former road surface there is the shock compaction effect, and basic unit, subbase even soil matrix all there is certain compaction, expense is also lower, can realize the desired effect of concrete pavement breaking.
3) broken compacting
Consider the structure of concrete plate, the concrete plate level to be tied and heal little crushing effect better, so best results is carried out in fragmentation in order successively from runway Zhao fast.After punching press is intact, carries out curb and change plate, overlap mutually.After the impact, changed the former pavement crack of plate, manually use the SK-70 pitch cementation of fissures, spill layer, seal oil then, overlay asphalt concrete again.
Broken pass depends on the realization degree of broken desired value, and broken desired value comprises concrete plate degree of crushing and can reflect the settling amount of roadbed soil layer intensity index.
About 75% (naked-eye observation) in former road surface is broken into graininess, surface maximum size is no more than 7.5cm, the centre is no more than 22.5cm, the bottom is no more than 37.5cm, in order to replenish broken and compacting surface, carry out vibratory compaction 2 times with Z-shape steel wheel road roller, use the dual-steel wheel road roller static pressure again one time, guarantee broken back evenness of road surface.
On the good road surface of fragmentation, spill cloth 2.5-3.0kg/m 2Mulseal, wait breakdown of emulsion after, the spreading specification is the aggregate chips of 3-5mm, consumption 5-6m 3/ 1000m 2, again with dual-steel wheel road roller roll smooth after, overlay asphalt concrete.
4, the cementation of fissures
The pavement crack that punching press is formed after blowing clean by hand sweeping, with forest fit-extinguishing, carries out the cementation of fissures with SK-70 pitch again.Should control asphalt content during the cementation of fissures, make pitch evenly infiltrate the crack, in order to avoid after overlaying the asphalt concrete surface layer, produce " bellding " phenomenon.
5 change hardened verge
All broken with LK3000 road surface excavator hardened verge; excavate former cement stabilized macadam base and soil matrix until runway basic unit bottom surface absolute altitude with excavator; after rolling leveling; at the every 75cm of carriageway plate side one of tension bars of longitudinal joints is set; prop up template; repave one deck every oozing geotextiles waterproofing course, the thick medium coarse sand topping of making 3cm, the thick graded broken stone of backfill 10cm, build 24cm C35 concrete again, overlay asphalt concrete then.
Two, overlay asphalt concrete pavement
1, spills the saturating layer of cloth, sticking layer oil
1) adopts the high-quality mulseal, be furnished with mulseal jar, pitch sprinkling car (machine), oil-containing groove, sprinkling truck, forest extinguishing blast fan, giant.
2) the former concrete road surface after the punching press, with the artificial broom of taking the surface is made an overall screening earlier, remove the floating ash of former concrete road surface, adhere to broken and loosening concrete piece in earth and the hole groove, longitudinally line up oblique line with the forest extinguishing blast fan again dirt is blown off, wash with waterwheel at last.
3) spray first pass mulseal priming oil, the sprinkling amount is 0.3-0.4L/m 2Because the influence that assurance is open to traffic and curb changes plate is kept runway earlier and is open to traffic, seals the fast traffic, sprays fast, after parked 24 hours, open fast traffic, exchange are sealed, driving.Treat the curb concrete build finish and the joint-cutting afterflush clean, spray this width of cloth sticking layer oil again, every width of cloth sprays all close traffics 24 hours of back, establishes the special messenger and keeps an eye on.
4) paved preceding 24 hours at the asphalt concrete levelling course, full width is spilt sticking layer oil second time, spills the cloth amount and also is 0.3-0.4L/m 2Cleaning is earlier totally manually picked up and is removed the foreign material that adhere on the first pass sticking layer oil before spilling cloth, and complete again section evenly spills the cloth sticking layer oil, do not allow to spill more or leak to spill, seam crossing adopts colour bar cloth to cover, and manually strike off more at the position of spilling, in order to avoid cause bonding bad, the bellding in road surface.
2, the asphalt concrete surface layer that paves
1) thickness requirement
Pavement design elevation after the overlay is raised 18-20cm with former design altitude integral body, considers to estimate punching press settling amount 2-4cm, and the overlay gross thickness can be 22cm.When new design altitude and the old road face discrepancy in elevation greater than 18-20cm or with punching press after the old road face discrepancy in elevation during greater than 22cm, increase levelling course and following surface thickness and adjust, assurance transverse slope, thickness, planeness are guaranteed workmanship.
2) material
The lime sillar stone that the building stones of levelling course, following surface layer, middle surface layer all adopt Quanjiang thatched hut building stones factory, pool Dun Shiliaochang to produce, this stone matter is hard, and the intensity height is impure few, with asphalt adhesion greater than 4 grades, other index such as water absorption rate all meets demand of technical standard.Bituminous mixture adopts Japanese Nigata NP3000CA and two blending stations of Nigata NP2000CA to mix and stir.Check various raw material before mixing and stirring earlier, can use after the assay was approved, also will check comprehensively mixing apparatus.Determine production mix proportion by Target Mixture Ratio, carry out test section with production mix proportion and pave, self check checking acquisition standard construction match ratio.Standard mix is the standard of manufacture control and quality inspection, must guarantee in the process of production that the mineral aggregate composition variation of all size is little, and compound uniform mixing unanimity does not have grey material, Mao Qingyan, dry, the sticking phenomenon of compound; Pitch-black not shinny, do not have bellding, sticking wall when paving, not wall built-up, no conglomeration or become piece, compound best results at this moment.Blending station is debugged, and the accounting procedure of control blending station is determined production mix proportion.Metering system debugging of cold burden storehouse and control: blending station has 5 cold burden storehouses, one gate opening discharge baffle is arranged at each feed bin bottom, determine the gate opening degree, the belt conveyor buncher control flow of bottom, determine the gate opening size according to the percentage of Target Mixture Ratio, fix an appropriate location, then, on the operating room controller, import motor speed, just can control the production flow in various cold burdens storehouse.
Mix and stir the control temperature: the plain asphalt heating and temperature control is at 150 ℃~160 ℃, the mineral aggregate heating and temperature control is at 170 ℃~180 ℃, the plain asphalt compound temperature of dispatching from the factory is controlled at 155 ℃~165 ℃, mixture temperature detects at any time, be lower than 145 ℃ or be higher than 170 ℃ and will in time adjust as the bituminous mixture temperature, should pass into disuse the compound that is higher than 180 ℃.The modified bitumen heating and temperature control is at 160 ℃~170 ℃, and the mineral aggregate heating and temperature control is at 170 ℃~190 ℃, and the compound temperature of dispatching from the factory is controlled at 165 ℃~175 ℃, and is discarded when surpassing 190 ℃.
(2) speed that paves:
The operating rate of paver and mix type, feed capacity, the cross dimension that paves are relevant.Correctly selecting the speed of paving for use is to improve the important means of spreading quality, and feed and speed must be coordinated, otherwise segregation can occur, ripple is arranged, harmful effect such as coefficient of loose laying is big.
The speed V of paving can calculate with following formula and determine:
v = Q · C 60 b · h · ρ ( m / min )
Wherein: Q--compound supply capacity (t/h), get Q=380t/h
The C--efficiency factor generally 0.8~0.9 more reasonable, gets 0.85
B--paving width (m) is got 10.75m
H--paving thickness (m) is got 0.08m
ρ--compound degree of compaction (t/m 3), get 2.448t/m 3
Therefore:
v = 380 × 0.85 60 × 10.75 × 0.08 × 2.448 = 2.56 m / min
(3) compound making
Levelling course AC-10I particulate formula asphalt concrete, required thickness 4cm.It utilizes the paver automatic leveling device, bonds by THICKNESS CONTROL, filling hole groove, height and old concrete plate, plays water shutoff and smooth-going effect.Following surface layer AC-25I coarse grain formula asphalt concrete utilizes the control of benchmark steel wire absolute altitude, horizontal wall inscription and planeness.The old pavement Laying Asphalt Surface Course, very difficult with the control of benchmark steel wire, must be meticulous especially, length of steel wire rope is advisable about with 200m, the wire rope stretching force is not less than 1000N, and 10m wire rope amount of deflection is not more than 2mm, and the steel wire carriage is laid one at the every 10m of straightway, bend is encrypted, and every 5m establishes one.Practice shows, surface layer under the making like this, and absolute altitude, transverse slope, flatness effect are very desirable.Adopt the levelling of floating reference beam in paving, during upper layer, datum line beam, can fluctuate on slide plate by spring-loaded, by the front and back floating beam longitudinal gradient and the discrepancy in elevation of original road surface with new shop layer is combined, and has controlled planeness and thickness preferably.
Before paving, earlier preheating is not less than 30 minutes to paver, and the temperature that makes screed calculates loose laying depth more than 100 ℃ according to coefficient of loose laying, adjusts the screed height, and is good with the plank pad, and its height equates with loose laying depth, make screed firm be placed on above.The temperature of noting constantly in the paving process paving is not less than 140 ℃; Electronic inductor is kept an eye on by the special messenger, prevents sensor landing steel wire, will turn off sensor during through the drill rod cross bar, and benchmark floating beam slide plate does not allow to be stained with the asphalt concrete fines, arranges the special messenger to wipe once every a period of time.
4) bituminous mixture rolls
As following table
Table 3
Temperature Machinery Pass, speed Mode, purpose
First pressing 125 ℃~145 ℃ The DD130 vibratory roller DD130 shakes and presses twice speed 5km/h To the center, overlapping 1/3 wheelmark makes compound smooth, stable by the edge.
The multiple pressure 115 ℃~135 ℃ minimum must not be lower than 105 ℃ The two steel wheel YL-25 rubber tire YL-26 rubber tire YL-26 rubber tires of CC-50 CC-501 shakes, and to press twice speed 6-7km/h YL-25, twice speed of each static pressure of YL-26, YL-26 be 5-6km/h By the center, lateral, overlapping 1/3 wheelmark.Make compound reach closely knit.
Final pressure 105 ℃~125 ℃ minimum must not be lower than 105 ℃ The DD110 vibratory roller Front cover, twice speed of static pressure is 8km/h Remove wheelmark by center, lateral, overlapping 1/3 wheelmark, meticulous smooth.

Claims (7)

1. old cement concrete pavement transformation overlays asphalt concrete surface construction method, it is characterized in that: specifically comprise the steps:
1) former cement concrete pavement is handled
Abolishing and build again of A, damaged plate
B, old cement concrete pavement mud jacking
C, former road shocks roll
D, the cementation of fissures
E, replacing hardened verge
2) overlay asphalt concrete pavement
F, spill the saturating layer of cloth, sticking layer oil
G, the asphalt concrete surface layer paves
In the described A step abolishing with building again of damaged plate comprised:
Plate to the old pavement badly broken carries out the fragmentation removing;
Being rooted out, build 15cm for part loosening on the old cement stabilized base course mends with thick C15 cement concrete with old basic unit and puts down;
To the hole groove in the basic unit then with cement mortar fill and lead up, tamping;
Build the C35 concrete road slab of thick 24cm.
2. old cement concrete pavement transformation according to claim 1 overlays asphalt concrete surface construction method, it is characterized in that: in the described B step old cement concrete pavement mud jacking is comprised:
With cement: flyash: expansion agent: early strength admixture: water=1: 2: 0.08: carry out mortar construction proportioning at 0.06: 1.2,
Wherein cement is 32.5 class g cements P.0, and early strength admixture is H2 type complex accelerator, and expansion agent is UEA, and expansion rate is 0.03%~0.05%;
To the purt mud of the need mud jacking plate that comes to nothing, with red lacquer mark bore position;
Drill through the hole of diameter 5cm with drill bit 51 * 300mm rig, 4~5 holes of every twist drill, drilling depth is to basic unit's end face or subbase bottom surface;
Evenly mix and stir mortar with the mortar lorry mounted mixer by the construction match ratio;
Be pressed into the mortar that mixes and stirs at the bottom of the concrete plate or the roadbed end face by boring good mortar hole with mudjack, pressure is controlled at 0.5~1.0Mpa, in adjacent holes or seam, overflow slurry or do not have the slurry of overflowing panel block and slightly rise till;
After slurry is stablized about 10 minutes, extract stopper, grout hole is obturaged with mortar or mortar.
3. old cement concrete pavement transformation according to claim 1 overlays asphalt concrete surface construction method, it is characterized in that: in the described C step former road shocks rolled and comprise:
Utilize the beater wheel of impact roller that plate is carried out impact grinding;
Utilize the weight crushing engine old cement concrete plate to be broken into the fine grained chippings of 7.5mm~20mm;
On the good road surface of fragmentation, spill the mulseal of cloth 2.5-3.0kg/m2, wait breakdown of emulsion after, the spreading specification is the aggregate chips of 3-5mm, consumption 5-6m3/1000m2, again with dual-steel wheel road roller roll smooth after, overlay asphalt concrete.
4. old cement concrete pavement transformation according to claim 1 overlays asphalt concrete surface construction method, and it is characterized in that: the cementation of fissures comprises in the described D step:
Pavement crack to punching press forms carries out the cementation of fissures with SK-70 pitch.
5. old cement concrete pavement transformation according to claim 1 overlays asphalt concrete surface construction method, it is characterized in that: change hardened verge in the described E step and comprise:
All broken with LK3000 road surface excavator hardened verge, excavate former cement stabilized macadam base and soil matrix until runway basic unit bottom surface absolute altitude with excavator, after rolling leveling, at the every 75cm of carriageway plate side one of tension bars of longitudinal joints is set, prop up template, repave one deck every oozing geotextiles waterproofing course, the thick medium coarse sand topping of making 3cm, the thick graded broken stone of backfill 10cm, build the 24cmC35 concrete again, overlay asphalt concrete then;
To being input in the control storage of automatic gauge cement, water and various gathering materials, after the trial mix check is errorless, formally mix and stir production;
Concrete mixed material is paved;
To the compound that paves, vibrate equably with poker vibrator and vibration board rapidly;
With further dilatory jolt ramming of the beam that vibrates and preliminary leveling;
Plucking facility plucking is adopted along the horizontal wall inscription direction in floating back, surface;
In time spray the plastic sheeting curing agent after the concrete surfacing finishes and carry out health.
6. old cement concrete pavement transformation according to claim 1 overlays asphalt concrete surface construction method, it is characterized in that: spill the saturating layer of cloth in the described F step, sticking layer oil comprises:
Former concrete road surface after the punching press makes an overall screening, and removes the floating ash of former concrete road surface, adheres to broken and loosening concrete piece in earth and the hole groove, longitudinally lines up oblique line with the forest extinguishing blast fan again dirt is blown off, and washes with waterwheel at last;
Spray first pass mulseal priming oil, the sprinkling amount is 0.3-0.4L/m2;
After parked 24 hours, spray this width of cloth sticking layer oil again, paved preceding 24 hours at the asphalt concrete levelling course, full width is spilt sticking layer oil second time, spills the cloth amount and also is 0.3-0.4L/m2.
7. old cement concrete pavement transformation according to claim 1 overlays asphalt concrete surface construction method, and it is characterized in that: the asphalt concrete surface layer that paves in the described G step comprises:
Get the raw materials ready, bituminous mixture adopts Japanese Nigata NP3000CA and Nigata NP2000CA, is mixed and stirred by two blending stations;
The pitch that paves carries out first pressing, and the asphalt temperature that paves is at 125 ℃~145 ℃, shakes with vibratory roller and presses twice, and speed is 5km/h;
The multiple pressure is not less than 105 ℃ of elder generations and shakes with dual-steel wheel road roller and press twice, and speed 6-7km/h is 5-6km/h with pneumatic-tired rollers YL-25 and twice speed of each static pressure of pneumatic-tired rollers YL-26 again;
Final pressure, being not less than 105 ℃ is 8km/h with twice speed of vibratory roller static pressure.
CN200910307584A 2009-09-23 2009-09-23 Construction method for reconstructing old concrete pavement by paving asphalt-concrete surface layer CN101691736A (en)

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Cited By (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102041761A (en) * 2010-11-30 2011-05-04 中公高科(北京)养护科技有限公司 Road surface layer structure and road surface old material recycling method
CN102061658A (en) * 2010-12-03 2011-05-18 上海市城市建设设计研究院 Pavement repairing method for preventing pavement structure joints from generating reflection cracks
CN102140772A (en) * 2011-02-16 2011-08-03 河北路桥集团有限公司 Method for treating road erosion
CN102383352A (en) * 2011-08-29 2012-03-21 中交四公局第二工程公司 Method for constructing foam lightweight concrete poured roadbed
CN102433818A (en) * 2011-08-31 2012-05-02 娄志平 Defective road pavement boring bridging filling structure and construction method thereof
CN102677567A (en) * 2012-05-03 2012-09-19 华南理工大学 Asphalt pavement structure regenerated from concrete pavement and construction method of asphalt pavement structure
CN103276659A (en) * 2013-06-07 2013-09-04 成军 Construction method for reconstruction of old cement concrete pavements by combination of crack and seat and high-elastic asphalt stress absorbing layer
CN103526678A (en) * 2013-10-30 2014-01-22 中南林业科技大学 Construction method for enhancing structural strength of joint cement concrete pavement
CN104328730A (en) * 2014-09-26 2015-02-04 杭州江润科技有限公司 Construction method for transforming cement concrete pavement with embedded reinforced asphalt layer
CN104652241A (en) * 2013-06-07 2015-05-27 成军 Construction method for transforming old concrete pavement by combination of cracking and seating with high-elasticity asphalt stress absorbing layer
CN104831598A (en) * 2015-04-21 2015-08-12 成军 Construction method for reconstruction of old cement pavement into asphalt concrete pavement
CN105178132A (en) * 2015-07-27 2015-12-23 福州市规划设计研究院 Method and structure for achieving rigid-soft overlapping joint before pavement paving
CN105386381A (en) * 2015-10-09 2016-03-09 安徽省新路建设工程集团有限责任公司 Pickaxe crushing and grouting recycling method for old cement concrete pavement
CN106192701A (en) * 2016-08-22 2016-12-07 青海省收费公路管理处 The construction method of repaving asphalt coat after the punishment of concrete road surface under high and cold heavy duty
CN106192698A (en) * 2016-08-30 2016-12-07 中国十九冶集团有限公司 Highway pavement rubblization processes recycling laying construction structure and technique
CN106758641A (en) * 2016-12-05 2017-05-31 中铁五局集团有限公司 The big thickness cement stabilized macadam subbase construction method of big width
CN107460803A (en) * 2017-07-19 2017-12-12 广东金长成桥梁隧道科技有限公司 The asphalt pavement structure and its construction method of a kind of Reflection Cracking
CN107905082A (en) * 2017-11-03 2018-04-13 长沙理工大学 Suitable for the broken Application way of Deteriorated concrete pavement panel under bad support
CN108103876A (en) * 2017-12-18 2018-06-01 山东交通学院 A kind of construction method for improving bituminous pavement top and being coupled with semi-rigid type base interlayer
CN108103906A (en) * 2017-11-28 2018-06-01 安徽徽风新型合成材料有限公司 A kind of construction technology of polyester filament Singed non-woven fabrics
CN109135309A (en) * 2018-08-14 2019-01-04 徐润宝 A kind of durable auxiliary agent enhancing pitch ageing resistance
CN109162162A (en) * 2018-08-15 2019-01-08 徐润宝 A kind of construction method promoting durability of asphalt pavement
CN109944131A (en) * 2017-12-20 2019-06-28 张正安 A kind of airplane parking area reparation construction method
CN110629621A (en) * 2019-09-16 2019-12-31 江苏永联精筑建设集团有限公司 Paving construction process for rubblizing treatment and recycling of cement road repaired pavement

Cited By (33)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102041761B (en) * 2010-11-30 2012-11-28 中公高科养护科技股份有限公司 Road surface layer structure and road surface old material recycling method
CN102041761A (en) * 2010-11-30 2011-05-04 中公高科(北京)养护科技有限公司 Road surface layer structure and road surface old material recycling method
CN102061658A (en) * 2010-12-03 2011-05-18 上海市城市建设设计研究院 Pavement repairing method for preventing pavement structure joints from generating reflection cracks
CN102140772A (en) * 2011-02-16 2011-08-03 河北路桥集团有限公司 Method for treating road erosion
CN102383352A (en) * 2011-08-29 2012-03-21 中交四公局第二工程公司 Method for constructing foam lightweight concrete poured roadbed
CN102433818A (en) * 2011-08-31 2012-05-02 娄志平 Defective road pavement boring bridging filling structure and construction method thereof
CN102677567A (en) * 2012-05-03 2012-09-19 华南理工大学 Asphalt pavement structure regenerated from concrete pavement and construction method of asphalt pavement structure
CN102677567B (en) * 2012-05-03 2014-12-31 华南理工大学 Asphalt pavement structure regenerated from concrete pavement and construction method of asphalt pavement structure
CN103276659A (en) * 2013-06-07 2013-09-04 成军 Construction method for reconstruction of old cement concrete pavements by combination of crack and seat and high-elastic asphalt stress absorbing layer
CN104652241B (en) * 2013-06-07 2016-09-07 南通路桥工程有限公司 Break pressure and surely combine high-elastic asphalt stress absorbing layer transformation old concrete road construction method
CN104652241A (en) * 2013-06-07 2015-05-27 成军 Construction method for transforming old concrete pavement by combination of cracking and seating with high-elasticity asphalt stress absorbing layer
CN103276659B (en) * 2013-06-07 2015-05-20 振华集团(昆山)建设工程有限公司 Construction method for reconstruction of old cement concrete pavements by combination of crack and seat and high-elastic asphalt stress absorbing layer
CN103526678A (en) * 2013-10-30 2014-01-22 中南林业科技大学 Construction method for enhancing structural strength of joint cement concrete pavement
CN103526678B (en) * 2013-10-30 2016-06-15 中南林业科技大学 A kind of construction method strengthening joint cement concrete road surface structure intensity
CN104328730A (en) * 2014-09-26 2015-02-04 杭州江润科技有限公司 Construction method for transforming cement concrete pavement with embedded reinforced asphalt layer
CN104328730B (en) * 2014-09-26 2016-06-08 杭州江润科技有限公司 The construction method of embedded reinforcement bitumen layer transformation cement concrete pavement
CN104831598A (en) * 2015-04-21 2015-08-12 成军 Construction method for reconstruction of old cement pavement into asphalt concrete pavement
CN105178132A (en) * 2015-07-27 2015-12-23 福州市规划设计研究院 Method and structure for achieving rigid-soft overlapping joint before pavement paving
CN105386381A (en) * 2015-10-09 2016-03-09 安徽省新路建设工程集团有限责任公司 Pickaxe crushing and grouting recycling method for old cement concrete pavement
CN106192701A (en) * 2016-08-22 2016-12-07 青海省收费公路管理处 The construction method of repaving asphalt coat after the punishment of concrete road surface under high and cold heavy duty
CN106192701B (en) * 2016-08-22 2018-07-24 青海省收费公路管理处 Construction method for repaving asphalt coat after the lower concrete road surface punishment of high and cold heavy duty
CN106192698A (en) * 2016-08-30 2016-12-07 中国十九冶集团有限公司 Highway pavement rubblization processes recycling laying construction structure and technique
CN106758641A (en) * 2016-12-05 2017-05-31 中铁五局集团有限公司 The big thickness cement stabilized macadam subbase construction method of big width
CN107460803A (en) * 2017-07-19 2017-12-12 广东金长成桥梁隧道科技有限公司 The asphalt pavement structure and its construction method of a kind of Reflection Cracking
CN107905082B (en) * 2017-11-03 2019-12-13 长沙理工大学 Crushing and utilizing method suitable for old cement concrete panel under poor support
CN107905082A (en) * 2017-11-03 2018-04-13 长沙理工大学 Suitable for the broken Application way of Deteriorated concrete pavement panel under bad support
CN108103906A (en) * 2017-11-28 2018-06-01 安徽徽风新型合成材料有限公司 A kind of construction technology of polyester filament Singed non-woven fabrics
CN108103876A (en) * 2017-12-18 2018-06-01 山东交通学院 A kind of construction method for improving bituminous pavement top and being coupled with semi-rigid type base interlayer
CN109944131A (en) * 2017-12-20 2019-06-28 张正安 A kind of airplane parking area reparation construction method
CN109135309A (en) * 2018-08-14 2019-01-04 徐润宝 A kind of durable auxiliary agent enhancing pitch ageing resistance
CN109135309B (en) * 2018-08-14 2020-09-18 徐润宝 Durable auxiliary agent for enhancing ageing resistance of asphalt
CN109162162A (en) * 2018-08-15 2019-01-08 徐润宝 A kind of construction method promoting durability of asphalt pavement
CN110629621A (en) * 2019-09-16 2019-12-31 江苏永联精筑建设集团有限公司 Paving construction process for rubblizing treatment and recycling of cement road repaired pavement

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