CN105239483B - A kind of harbour concrete road line structure and its construction method - Google Patents
A kind of harbour concrete road line structure and its construction method Download PDFInfo
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- CN105239483B CN105239483B CN201510756271.4A CN201510756271A CN105239483B CN 105239483 B CN105239483 B CN 105239483B CN 201510756271 A CN201510756271 A CN 201510756271A CN 105239483 B CN105239483 B CN 105239483B
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Abstract
A kind of harbour concrete road line structure, lay bed course respectively above roadbed, basic unit and surface layer, horizontal and vertical distribution bar is arranged at surface layer top, road routing center is divided into two tracks, two track surface layers are divided into the cast-in-place carriageway plate of some block concretes, transmission rod is put in longitudinal joint and transverse joint between carriageway plate, carriageway plate is divided into wheel nip and non-wheel nip, compression reinforcement is furnished with wheel nip upper limb, lower edge is furnished with bending resistance reinforcing bar, two middle side parts have longitudinal reinforcement, there is lacing wire between compression reinforcement and bending resistance reinforcing bar, compression reinforcement, there is stirrup outside bending resistance reinforcing bar and middle part longitudinal reinforcement；Facing surface has non-wheel nip and wheel nip mark.Joint-cutting and joint filling are carried out after being constructed in order to roadbed, bed course, basic unit, surface layer, mark graticule is drawn.The road guides vehicle to be travelled along the wheel nip of bending resistance and cracking resistance bearing capacity by force by identifying graticule, road is born heavy traffic, the container vehicle load of axle load, it is ensured that the safety and durability of surface layer.
Description
Technical field
The present invention relates to road engineering, particularly a kind of harbour concrete road knot for container heavy-duty freight car traveling
Structure and its construction method.
Background technology
Either car or lorry, the total weight of vehicle body is all to be transmitted to road surface by the wheel on axletree.Therefore, it is right
For road surface, the axle for attaching great importance to automobile is carried.At present, the rear axle axle of the lorry travelled in highway in China is carried, and general control exists
In the range of 60~130kN, China's current highway is with urban road surfaces design specification using 100kN as design of standard axle load.
It is different, road structure design, except to examine that the axle of different gravity, which carries the degree of injury brought to pavement structure,
Consider in design period outside the accumulative volume of traffic of road, it is necessary to consider that axles at different levels carry proportion.
Harbour is the distribution centre of sea-freight or river cargo handling, and (container vehicle gross weight is mostly at 40 tons for a large amount of containers
More than) and heavy goods vehicle ceaselessly come and go transport goods, mainly for the harbour concrete road of this kind of lorry traveling, current one
As use concrete road line structure：Lay bed course, basic unit and surface layer respectively above roadbed, it is in the concrete of surface layer plus horizontal
To distribution bar and genesis analysis reinforcing bar.This concrete road line structure, because the accumulative volume of traffic is big, vehicle axle is heavy and gross weight
The reason such as big, its security and durability are difficult to be guaranteed.
The content of the invention
It is an object of the invention to provide the harbour concrete road line structure of a kind of security and good endurance, while providing this
Plant the construction method of structure.
The harbour concrete road line structure that the present invention is provided, lays bed course, basic unit and surface layer respectively above roadbed；Face
The thickness of layer, basic unit and bed course is respectively 30cm, 45cm and 25cm；Transversely distributed steelbar and longitudinal direction point are furnished with the top of surface layer
Cloth reinforcing bar；It is characterized in that：The harbour concrete road curb wherein heart line is divided into No. 1 track and No. 2 tracks Liang Ge tracks；Two
The surface layer in track is divided into some pieces of carriageway plates, carriageway plate by 400~600cm of longitudinal length, 400~500cm of transverse width
Transverse joint and longitudinal joint in be equipped with transmission rod；Two tracks are divided into wheel nip and non-wheel nip, and horizontal stroke is furnished with the upper limb of wheel nip
To spaced 25cm compression reinforcement, laterally spaced 12.5cm bending resistance reinforcing bar is furnished with the lower edge of wheel nip, in wheel
Two middle side parts of nip have middle part longitudinal reinforcement respectively, there is lacing wire, compression reinforcement, bending resistance between compression reinforcement and bending resistance reinforcing bar
There is stirrup the outside of reinforcing bar and middle part longitudinal reinforcement；There are non-wheel nip mark and wheel nip mark on the surface of surface layer.
The compression reinforcement is the hot rolled ribbed bars of 12~16mm of diameter, length less than carriageway plate longitudinal length 4cm.
The bending resistance reinforcing bar is the hot rolled ribbed bars of 22~28mm of diameter, length less than carriageway plate longitudinal length 4cm.
The middle part longitudinal reinforcement is the hot-rolled strip of a diameter of 12~16mm, length less than carriageway plate longitudinal length 4cm
Rib reinforcement.
The stirrup be diameter 12mm hot rolled ribbed bars, carriageway plate away from two away from two 50~70cm of side in the range of
Stirrup spacing is 12.5cm, and stirrup spacing is 25cm in the range of remaining.
The lacing wire is diameter 12mm hot rolled ribbed bars, and longitudinal direction is each other away from for 25cm.
Transversely distributed steelbar and the genesis analysis reinforcing bar is respectively diameter 12mm hot rolled ribbed bars, cross direction profiles steel
Muscle is each other away from for 10~15cm, and genesis analysis reinforcing bar is that 10~15cm is arranged in the range of non-wheel nip by spacing.
The transmission rod is diameter 32mm, each other long 50cm, the hot rolling plain bar away from 30cm.
The construction method of above-mentioned road structure, including the step of following order：
Step 1: roadbed is constructed
The thick element soil of backfill 30cm after clear table；Implement 20 times impact-rollings, rolling speed is 10~15km/h；Make the top of roadbed
Face resistance to compression integrates modulus of resilience value EocReach 80kPa~120kPa；
Step 2: cushion construction
1) material requirements
The clean rubble crushed from high-quality gravel or with building stones is aggregate, and the building stones standard class of selection is not less than three
Level；Granule content of the particle diameter less than 0.075mm is less than 3% in aggregate, and should have enough infiltration coefficients；
2) construction requirement
Natural mixing gravel or not sieved rubble, can direct decking and rolling, the material of classification preparation mixes and stirs with mixer
It can be paved after even；Using machine spreading, isolation should be avoided in paving process, for the position locally isolated, is passed through
Supplement the mode mixed and stirred and ensure its uniformity, what is seriously isolated answers partial refuelling；Bed course after paving must have suitable road camber
With the initial compactness of uniformity, to ensure consolidation effect；The qualified standard of compacting is the vibration pressure road of 12~15 tons of deadweight
Machine is rolled under 20~25 tons of exciting forces, and surface is without obvious passage and wheelmark；
Step 3: base layer construction
1) basic unit is made up of 5% cement stabilized grading crushed stones, and cement stabilizing compound is mixed and stirred using mechanical mixing method；
2) uniformity for controlling the water content of blended stock and mixing and stirring is had to check for before rolling, optimal pressure should be in blended stock
Rolled during real water content, each minimum 5cm of compacted depth is 15cm to the maximum；
3) in roller compaction process it is noted that levelling, fill up place and want scarifying charging, be compacted again integral；
4) cement stabilizing compound mixes and stirs the time delay (including the dry mixing time) being compacted to completion from the mud that adds water, no
Should be more than 2 hours；
5) after roller-compaction, watering daily is conserved for several times, keeps substrate surface wetting, is forbidden being spilt with water pipe punching, is supported
The shield phase cannot be less than 7 days, the top surface resistance to compression of basic unit is integrated modulus of resilience value EojReach 1500kPa~1550kPa；Maintenance terminates
After should be immediately to surface construction
Step 4: surface construction
1) to the transversely distributed steelbar in surface layer structure, genesis analysis reinforcing bar, compression reinforcement, bending resistance reinforcing bar, lacing wire and hoop
Muscle carries out positioning colligation；Embedded transmission rod；
2) after-pouring concrete is buried in the positioning colligation and transmission rod for completing above-mentioned reinforcing bar, during spread concrete compound,
Is vibrated untill compound stops sinking, no longer effervescent and glows cement mortar the duration to each position compound,
Stopping is vibrated；Jolt ramming and shake it is flat after, come and go to scrape with vibrations tamping plate and shake 2~3 times, by surface bleeding leveling, drive bubble out of, and and
When excavation and filling polishing, when filling up select macadam-aggregate mix, forbid with sharp sand slurry fill up levelling；Forbid when wiping one's face on concrete slab
Sprinkle water and spill cement flour；Texture is transversely made in concrete surface using kerve device or rolling embossing device after surface is floating；Draw
Hair or embossing depth are 1~3mm；
3) health
Health should be immediately begun to after the completion of concrete surface making, health is with covering moisturizing and sprinkles water in time, keep mixed
Solidifying soil surface is in dampness all the time, and during 5~40 DEG C of temperature, conditioned time is no less than 28 days, when temperature is less than 5 DEG C, health
Time is no less than 60 days；
Step 5: joint-cutting and joint filling
Joint-cutting is carried out with transverse joint to the longitudinal joint of carriageway plate using joint-cutting method, design strength is reached in concrete strength
When 25%~30%, cut with grooving machine, 2~3cm of depth of cut；
Slot should the joint filling in time after concrete curing expires；It must keep stitching interior cleaning before joint filling, while ensureing joint filling
Material should be close impermeable with the adhesion of concrete slotted wall, should ensure that pointing has the sufficient scleroma time before open to traffic；
Step 6: in the non-wheel nip mark of surface rendering and wheel nip mark of surface layer.
The harbour concrete road built up by above-mentioned construction method has the advantages that：
1st, using high-modulus roadbed, bed course and basic unit, one is that can effectively reduce the deflection value deformation of surface layer under heavy loads, can
The concrete slab durability of surface layer is greatly improved；Two be to make the whole plate thickness of panel uniform, the temperature difference and the tired tension of wet difference
It is greatly lowered, improves the fatigue resistance of pavement structure；Three be to make the joint slab ability of concrete slab obtain significantly carrying
Height, is easy to late maintaining and improves the usage cycles on road surface.
2nd, container vehicle is guided to defined wheel nip traveling, and pointedly in wheel nip by identifying graticule
Bending resistance reinforcing bar and compression reinforcement are configured in surface layer, bending resistance, the cracking resistance bearing capacity of wheel nip is improved；Stirrup and lacing wire will can be taken turns
The concrete of nip scope enters row constraint, improves tension, the compressive property of concrete；So that the surface layer of wheel nip can be born
Heavy traffic, the container vehicle load of axle load, it is ensured that the security and durability of surface layer.
3rd, stirrup is encrypted in carriageway plate away from being arranged in the range of 50~70cm of two ends by 12.5cm spacing, it is ensured that
The bending resistance at carriageway plate two ends, the bearing capacity of cracking resistance.
4th, in carriageway plate side stress weak location, container vehicle is guided to defined traveling by identifying graticule
Path, it is to avoid container vehicle wheel acts on the side of carriageway plate, it is to avoid the unfavorable factor in stress；Pass through simultaneously
Non- wheel nip is divided, arrangement of reinforcement is configured according to conventional in non-wheel nip, is conducive to saving construction costs.
5th, mark is greatly improved the security of driving at night using high reflective type graticule, while can also improve driving at night
Efficiency.
6th, structure site operation is easy, convenient later maintenance.
Brief description of the drawings
Accompanying drawing provides the schematic diagram of the embodiment of the present invention, wherein：
Fig. 1 is the sectional schematic diagram of harbour concrete road；
Fig. 2 is surface layer upper level direction sectional view in Fig. 1；
Fig. 3 is the driving mark figure on facing surface in Fig. 1；
Fig. 4 is the road driving schematic diagram identified shown in vehicle along Fig. 3；
Fig. 5 is the arrangement of reinforcement of road deck.
Embodiment
Below in conjunction with drawings and examples, the present invention will be further described.
The present embodiment harbour concrete road line structure, as shown in figure 1, laying 25cm hassocks layer respectively above roadbed 4
3rd, the thick basic units 2 of 45cm and the thick surface layers 1 of 30cm, the overall width of road is 850cm.
As shown in Fig. 2 the concrete is divided into width 425cm two tracks along its center line along road, wherein No. 1 car
Road I is that, into truck route, No. 2 tracks II are return track.The surface layer 1 in two tracks is by longitudinal length (along the length of road longitudinal direction)
It is that 425cm is divided into the cast-in-place carriageway plate 5 of some block concretes for 450cm, transverse width (along the horizontal length of road), in driving
Transmission rod 7 is put in the longitudinal joint 6-1 (gap along between road longitudinal direction) and transverse joint 6-2 (gap along between road transverse direction) of guidance tape, is passed
Power bar is diameter 32mm, each other long 50cm, the hot rolling plain bar HPB300 away from 30cm.
As shown in figure 3, two tracks are divided into wheel nip 9-1 and non-wheel nip 9-2.Two wheel nip 9- on each track
1 width is 100cm, each other away from 80cm, and distance of the foreign steamer nip away from track outer side edges is 72.5cm, and it is non-to take turns beyond nip
Take turns nip 9-2.
As shown in figure 5, the upper limb in wheel nip 9-1 is furnished with 5 12~16mm of diameter, length 446cm, spaced 25cm
Hot rolled ribbed bars HRB400, the horizontal compression reinforcement 11 of composition；Wheel nip 9-1 lower edge be furnished with 10 2~28mm of diameter,
Length 446cm, spaced 12.5cm hot rolled ribbed bars HRB400, composition bending resistance reinforcing bar 10；In wheel nip both sides
There are 1 12~16mm of diameter, length 446cm hot rolled ribbed bars HRB400 in portion respectively, constitutes middle part longitudinal reinforcement 12；Anti-
There are diameter 12mm, longitudinal direction the hot rolled ribbed bars HRB400 away from 25cm each other between pressing reinforcing and bending resistance reinforcing bar, constitute lacing wire
14；Have stirrup 13 in the outside of compression reinforcement, bending resistance reinforcing bar and middle part longitudinal reinforcement, carriageway plate longitudinal direction away from two sides 50~
Stirrup spacing is 12.5cm in the range of 70cm, and stirrup spacing is 25cm in the range of remaining, and stirrup is hot-rolled ribbed for diameter 12mm's
Reinforcing bar HRB400.On non-wheel nip 9-2 top, away from being furnished with diameter 12mm, each other hot-rolled strip away from 15cm at the 10cm of surface
Rib reinforcement HRB400 constitute transversely distributed steelbar 15 and diameter 12mm, along road longitudinal direction in carriageway plate away from 50~70cm of two ends
In the range of mutually hot rolled ribbed bars RB400 away from a 15cm is constituted away from 12.5cm, in the range of remaining each other genesis analysis
Reinforcing bar 16.High reflecting material of the useful reflection coefficient more than 200 is drawn on the surface of surface layer 1 non-wheel nip mark 8-2 and
Nip mark 8-1 is taken turns, wherein non-wheel nip mark 8-2 is chequered with black and white oblique line, wheel nip mark 8-1 is in concrete road surface
Centre is painted with the white arrow for indicating vehicle heading.
The construction method of the road structure, is carried out according to the following steps：
Step 1: roadbed is constructed
The thick element soil of backfill 30cm after clear table；Implement 20 times impact-rollings, rolling speed is 15km/h, resist the top surface of roadbed
The comprehensive modulus of resilience value E of pressureocFor 100kPa.
Step 2: cushion construction
The clean rubble crushed with building stones is aggregate, and the standard class from building stones is three-level；Particle diameter is less than in aggregate
0.075mm granule content is 2%, and with enough infiltration coefficients.
Construction uses the direct decking and rolling of not sieved rubble；Using machine spreading, isolation should be avoided in paving process, it is right
In the position locally isolated, ensure its uniformity by way of supplement is mixed and stirred, what is seriously isolated answers partial refuelling；Pave
Bed course afterwards must have suitable road camber and the initial compactness of uniformity, to ensure consolidation effect；The qualified standard of compacting
It is that the vibrated roller for using 12~15 tons of deadweight is rolled under 20~25 tons of exciting forces, surface is without obvious passage and takes turns
Mark.
Step 3: base layer construction
1st, basic unit is made up of 5% cement stabilized grading crushed stones, and cement stabilizing compound is mixed and stirred using mechanical mixing method；
2nd, the water content of control blended stock and the uniformity mixed and stirred, should be in optimal compaction water content in blended stock before rolling
Shi Jinhang is rolled, and each compacted depth is 10cm；
3rd, in roller compaction process it is noted that levelling, fill up place and want scarifying charging, be compacted again integral；
4th, it is 2 that cement stabilizing compound is mixed and stirred to the time delay (including dry mixing time) of compacting is completed from the mud that adds water
Hour；
5th, after roller-compaction, watering daily is conserved for several times, keeps substrate surface wetting, is forbidden being spilt with water pipe punching, is supported
10 days shield phases, the top surface resistance to compression of basic unit is set to integrate modulus of resilience value EojReach that 1520kPa, maintenance are applied to surface layer immediately after terminating
Work.
Step 4: surface construction
1st, to the transversely distributed steelbar in surface layer structure, genesis analysis reinforcing bar, compression reinforcement, bending resistance reinforcing bar, lacing wire and hoop
Muscle carries out positioning colligation；Embedded transmission rod；
2nd, complete above-mentioned reinforcing bar positioning colligation and embedded transmission rod after casting concrete, spread concrete compound
When, to each position compound vibrate the duration using compound stop sink, no longer effervescent and glow cement mortar as
Only, stop vibrating；In jolt ramming and substantially shake it is flat after, come and go to scrape with vibrations tamping plate and shake 3 times, by surface bleeding leveling, drive bubble out of,
And timely excavation and filling polishing, from thinner macadam-aggregate mix when filling up；Forbid to sprinkle water and sprinkle water on concrete slab when wiping one's face
Mud powder；Using the suitable tools such as kerve device or rolling embossing device after surface is floating, texture is transversely made in concrete surface；Draw
Hair or embossing depth are 3mm.
3rd, health
Health is immediately begun to after the completion of concrete surface making；Using moisture film, geotechnological felt, geotextiles, gunnysack, straw bag,
The covering wet curing such as straw screen or mat, daily watering is no less than 6 times, keeps concrete surface to be in dampness all the time；Temperature is 5
At~40 DEG C, conditioned time is no less than 28 days, when temperature is less than 5 DEG C, and conditioned time is no less than 60 days.
Step 5: joint-cutting and joint filling
Joint-cutting is carried out with transverse joint to the longitudinal joint of carriageway plate using joint-cutting method, design strength is reached in concrete strength
When 30%, cut with grooving machine, depth of cut 3cm.
Slot should the joint filling in time after concrete curing expires；Keep cleaning in seam before joint filling, while ensureing pointing
It is close impermeable with the adhesion of concrete slotted wall, it should ensure that pointing has the sufficient scleroma time before open to traffic.
Step 6: drawing mark graticule
In the non-wheel nip mark of the surface rendering of surface layer and wheel nip mark, wherein non-wheel nip mark is using chequered with black and white
Oblique line, wheel nip is designated the middle concrete road surface for drawing white arrow (instruction vehicle heading).Stock up vehicle and
Return vehicle presses mark and travels (as shown in Figure 4) on No. 1 track and No. 2 tracks respectively.
Claims (9)
1. a kind of harbour concrete road line structure, lays bed course (3), basic unit (2) and surface layer (1) respectively above roadbed (4)；
The thickness of surface layer, basic unit and bed course is respectively 30cm, 45cm and 25cm；Be furnished with the top of surface layer transversely distributed steelbar (15) and
Genesis analysis reinforcing bar (16)；It is characterized in that：The harbour concrete road curb wherein heart line is divided into No. 1 track (I) and No. 2 tracks
(II) two track；The surface layer (1) in two tracks is divided into some by 400~600cm of longitudinal length, 400~500cm of transverse width
Transmission rod (7) is equipped with block carriageway plate (5), the transverse joint (6-2) and longitudinal joint (6-1) of carriageway plate；Two tracks are divided into wheel
Nip (9-1) and non-wheel nip (9-2), laterally spaced 25cm compression reinforcement (11) is furnished with the upper limb of wheel nip,
The lower edge of wheel nip is furnished with laterally spaced 12.5cm bending resistance reinforcing bar (10), has middle part respectively in two middle side parts of wheel nip
Longitudinal reinforcement (12), there is lacing wire (14), the longitudinal steel in compression reinforcement, bending resistance reinforcing bar and middle part between compression reinforcement and bending resistance reinforcing bar
There is stirrup (13) outside of muscle；There are non-wheel nip mark (8-2) and wheel nip mark (8-1), non-wheel nip on the surface of surface layer
The high reflecting material of mark and wheel nip mark reflection coefficient more than 200 is drawn, wherein non-wheel nip is designated black and white phase
Between oblique line, wheel nip be designated be painted with the middle of concrete road surface indicate vehicle heading white arrow.
2. harbour concrete road line structure according to claim 1, it is characterised in that：The compression reinforcement (11) is diameter
12~16mm, length are less than carriageway plate (5) longitudinal length 4cm hot rolled ribbed bars.
3. harbour concrete road line structure according to claim 1, it is characterised in that：The bending resistance reinforcing bar (10) is diameter
22~28mm, length are less than carriageway plate (5) longitudinal length 4cm hot rolled ribbed bars.
4. harbour concrete road line structure according to claim 1, it is characterised in that：The middle part longitudinal reinforcement (12) is
A diameter of 12~16mm, length are less than carriageway plate (5) longitudinal length 4cm hot rolled ribbed bars.
5. harbour concrete road line structure according to claim 1, it is characterised in that：The stirrup (13) is diameter 12mm
Hot rolled ribbed bars, away from stirrup spacing in the range of two 50~70cm of side be 12.5cm in carriageway plate, bind round in the range of remaining
Muscle spacing is 25cm.
6. harbour concrete road line structure according to claim 1, it is characterised in that：The lacing wire (14) is diameter 12mm
Hot rolled ribbed bars, longitudinal direction is each other away from for 25cm.
7. harbour concrete road line structure according to claim 1, it is characterised in that：The transversely distributed steelbar (15) and
Genesis analysis reinforcing bar (16) is respectively diameter 12mm hot rolled ribbed bars, transversely distributed steelbar each other away from for 10~15cm,
Genesis analysis reinforcing bar is that 10~15cm is arranged in the range of non-wheel nip (9-2) by spacing.
8. harbour concrete road line structure according to claim 1, it is characterised in that：The transmission rod be diameter 32mm,
Long 50cm, each other the hot rolling plain bar away from 30cm.
9. the construction method of harbour concrete road line structure described in claim 1, it is characterised in that the step of including following order：
Step 1: roadbed is constructed
The thick element soil of backfill 30cm, implements 20 times impact-rollings, rolling speed is 15km/h, makes the top surface resistance to compression of roadbed comprehensive after clear table
Close modulus of resilience value EocReach 80kPa~120kPa；
Step 2: cushion construction
1) material requirements：
The clean rubble crushed from high-quality gravel or with building stones is aggregate, and the building stones standard class of selection is not less than three-level；Bone
Granule content of the particle diameter less than 0.075mm is less than 3% in material, and should have enough infiltration coefficients；
2) construction requirement：
Natural mixing gravel or not sieved rubble, can direct decking and rolling, the material of classification preparation is with after mixer uniform mixing
It can pave；Using machine spreading, isolation should be avoided in paving process, for the position locally isolated, passes through supplement
The mode mixed and stirred ensures its uniformity, and what is seriously isolated answers partial refuelling；Bed course after paving must have suitable road camber and equal
Even consistent initial compactness, to ensure consolidation effect；The qualified standard of compacting is that the vibrated roller of 12~15 tons of deadweight exists
Rolled under 20~25 tons of exciting forces, surface is without obvious passage and wheelmark；
Step 3: base layer construction
1) basic unit is made up of 5% cement stabilized grading crushed stones, and cement stabilizing compound is mixed and stirred using mechanical mixing method；
2) uniformity for controlling the water content of blended stock and mixing and stirring is had to check for before rolling, should be contained in blended stock in optimal compaction
Rolled during water, each minimum 5cm of compacted depth is 15cm to the maximum；
3) in roller compaction process it is noted that levelling, fill up place and want scarifying charging, be compacted again integral；
4) cement stabilizing compound is mixed and stirred to the time delay for completing compacting from the mud that adds water, and is not to be exceeded 2 hours；
5) after roller-compaction, watering daily is conserved for several times, keeps substrate surface wetting, forbids being spilt with water pipe punching, curing period
It cannot be less than 7 days, the top surface resistance to compression of basic unit is integrated modulus of resilience value EojReach 1500kPa~1550kPa；Maintenance should after terminating
Immediately to surface construction；
Step 4: surface construction
1) transversely distributed steelbar in surface layer structure, genesis analysis reinforcing bar, compression reinforcement, bending resistance reinforcing bar, lacing wire and stirrup are entered
Row positioning colligation；Embedded transmission rod；
2) after-pouring concrete is buried in the positioning colligation and transmission rod for completing above-mentioned reinforcing bar, during spread concrete compound, to every
The duration of vibrating of one position compound stops sinking with compound, no longer effervescent and untill glowing cement mortar, stops
Vibrate；Jolt ramming and shake it is flat after, come and go to scrape with vibrations tamping plate and shake 2~3 times, by surface bleeding leveling, drive bubble out of, and dig in time
Fill up neat, macadam-aggregate mix is selected when filling up, forbid to fill up levelling with sharp sand slurry；Forbid to sprinkle water on concrete slab when wiping one's face
With spill cement flour；Texture is transversely made in concrete surface using kerve device or rolling embossing device after surface is floating；Plucking or
Embossing depth is 1~3mm；
3) health
Health should be immediately begun to after the completion of concrete surface making, health is with covering moisturizing and sprinkles water in time, keep concrete
When surface is in dampness, 5~40 DEG C of temperature all the time, conditioned time is no less than 28 days, when temperature is less than 5 DEG C, conditioned time
No less than 60 days；
Step 5: joint-cutting and joint filling
Joint-cutting is carried out with transverse joint to the longitudinal joint of carriageway plate using joint-cutting method, concrete strength reach design strength 25%~
When 30%, cut with grooving machine, 2~3cm of depth of cut；
Slot should the joint filling in time after concrete curing expires；It must keep stitching interior cleaning before joint filling, while ensureing pointing
Should be close impermeable with the adhesion of concrete slotted wall, it should ensure that pointing has the sufficient scleroma time before open to traffic；
Step 6: in the non-wheel nip mark of surface rendering and wheel nip mark of surface layer.
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|---|---|---|---|---|
| JPH09143912A (en) * | 1995-11-24 | 1997-06-03 | Nippon Steel Corp | Paving structure |
| JPH11229306A (en) * | 1998-02-19 | 1999-08-24 | Nippon Koatsu Concrete Kk | Manufacture of paving slab |
| CN201351253Y (en) * | 2009-01-09 | 2009-11-25 | 长沙理工大学 | Continuous reinforced concrete pavement |
| CN103981784B (en) * | 2014-05-31 | 2016-01-20 | 长安大学 | A kind of lattice-shaped steel-mixed combination Long Life Pavement plated construction |
| CN204370268U (en) * | 2014-12-20 | 2015-06-03 | 华南理工大学 | A kind of cement concrete pavement |
| CN204401398U (en) * | 2014-12-30 | 2015-06-17 | 上海浦东建筑设计研究院有限公司 | A kind of flat stone structure of road reconstruction |
| CN204530363U (en) * | 2015-03-11 | 2015-08-05 | 湖南省交通科学研究院 | The complete thick formula revived structure of cement concrete pavement |
| CN205088538U (en) * | 2015-11-06 | 2016-03-16 | 沈阳建筑大学 | Pier concrete road structure |
-
2015
- 2015-11-06 CN CN201510756271.4A patent/CN105239483B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN105239483A (en) | 2016-01-13 |
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Effective date of registration: 20190125 Address after: 510630 Zhonggong Education Building 1513, 371 Wushan Road, Tianhe District, Guangzhou City, Guangdong Province Patentee after: Guangdong Changxing Investment Co., Ltd. Address before: 110168 Hunnan New Road, Hunnan New District, Shenyang, Liaoning 9 Patentee before: Shenyang Building Univ. |
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