CN102877389B - Asphalt pavement paving method - Google Patents
Asphalt pavement paving method Download PDFInfo
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- CN102877389B CN102877389B CN201210392981.XA CN201210392981A CN102877389B CN 102877389 B CN102877389 B CN 102877389B CN 201210392981 A CN201210392981 A CN 201210392981A CN 102877389 B CN102877389 B CN 102877389B
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- 239000010426 asphalt Substances 0.000 title claims abstract description 27
- 238000000034 method Methods 0.000 title abstract description 15
- 238000003801 milling Methods 0.000 claims abstract description 72
- 230000035515 penetration Effects 0.000 claims abstract description 10
- 238000004140 cleaning Methods 0.000 claims description 14
- 230000037452 priming Effects 0.000 claims description 11
- 238000010276 construction Methods 0.000 claims description 8
- 238000005056 compaction Methods 0.000 claims description 7
- 238000007789 sealing Methods 0.000 claims description 6
- 239000012459 cleaning agent Substances 0.000 claims description 5
- 239000007921 spray Substances 0.000 claims description 5
- 230000000694 effects Effects 0.000 abstract description 5
- 238000007596 consolidation process Methods 0.000 abstract description 3
- 230000006641 stabilisation Effects 0.000 abstract 1
- 238000011105 stabilization Methods 0.000 abstract 1
- 239000010410 layer Substances 0.000 description 13
- 239000000203 mixture Substances 0.000 description 12
- 239000004568 cement Substances 0.000 description 7
- 238000005096 rolling process Methods 0.000 description 6
- 239000004567 concrete Substances 0.000 description 4
- 239000011229 interlayer Substances 0.000 description 4
- 150000001875 compounds Chemical class 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000002344 surface layer Substances 0.000 description 3
- 230000001070 adhesive effect Effects 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000010008 shearing Methods 0.000 description 2
- 235000019738 Limestone Nutrition 0.000 description 1
- 239000011398 Portland cement Substances 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 239000002585 base Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 229910001651 emery Inorganic materials 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000005304 joining Methods 0.000 description 1
- 239000003350 kerosene Substances 0.000 description 1
- 239000006028 limestone Substances 0.000 description 1
- 230000003204 osmotic effect Effects 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
Landscapes
- Road Paving Structures (AREA)
- Road Repair (AREA)
Abstract
The invention relates to an asphalt pavement paving method. Before penetration oil is sprayed, a fine milling process is added, so that the interface structure depth of a semi-rigid base is obviously increased and the bond area is increased, and thus, the friction interlocking between an asphalt covering and the semi-rigid base is improved to a great extent, the anti-shear capacity between the asphalt covering and the semi-rigid base is greatly strengthened, the bonding strength is strengthened and the interlocking friction effect and the bonding action of the asphalt covering and the semi-rigid base are strengthened; and moreover, the penetration oil has a better penetration effect, so that the problem of insufficient penetration depth of the penetration oil is solved and the penetration oil really takes effects of consolidation, stabilization, connection, waterproofness and the like.
Description
Technical field
The present invention relates to field of engineering technology, a kind ofly can improve semi-rigid type base and surface layer interlayer connects the new laying of roadway method of state.
Background technology
The quality of asphalt surface course and semi-rigid type base interlaminar bonding performance directly affects functional performance and the service life of road.As can be seen from the on-the-spot core of getting of damage of bituminous pavement, have between quite a few sub-surface and surface layer and throw off completely, cause the generation of pavement disease directly or indirectly.Currently mainly improve asphalt surface course and connect situation by spraying permeable layers wet goods chemical means with semi-rigid type base interlayer.But priming oil only penetrates the basic unit top layer that certain depth could form firm stable, just can contribute to the entirety connection of basic unit and asphalt surface course, if the degree of depth that basic unit is certain can not be penetrated, even if be sprinkled upon surface, define one deck oil film, it can not play the effects such as consolidation, stable, connection, waterproof, and this one deck oil film is easy to be sticked up by dumper, paver, turn down in work progress.And from current present situation, the priming oil that really can penetrate semi-rigid type base is little, be so just difficult to the application life ensureing road.
Summary of the invention
The object of the invention is to overcome the defect that existing for road of the prior art, between semi-rigid type base and surface layer, adhesive strength is inadequate, provide and a kind ofly can improve the adhesive property of asphalt surface course and semi-rigid type base and the asphalt roads paving method of the antitorque ability of cutting.
The technical scheme solved the problems of the technologies described above is that bitumen pavement construction method comprises the following steps:
1) compaction treatment is carried out to the semi-rigid type base paved, degree of compaction >=95%, health;
2) good to health semi-rigid type base carries out finish-milling plane, and milling speed is 3 ~ 5m/min, and the milling degree of depth is 4 ~ 6mm, cleaning, removes and loosens building stones;
3) rinsed by the semi-rigid type base cleaning agent after cleaning, spray oil reservoir, fountain height is 1.32 ~ 1.54kg/m
2;
4) when the priming oil of step 3) no longer trickles, when length of penetration reaches 2 ~ 3mm, spread aggregate chips, rolls 1 ~ 2 time, forms Sub-sealing Course;
5) on Sub-sealing Course, making temperature is the asphalt surface course of 55 ~ 70 DEG C, paves evenly and rolls.
Above-mentioned steps 2) finish-milling plane method comprise the following steps:
2.1) in front 10m, the milling machine milling degree of depth slowly will adjust to the milling degree of depth 4 ~ 6mm of requirement from zero;
2.2) keep the milling degree of depth to be 4 ~ 6mm, to during last 10m, the milling machine milling degree of depth is reduced to zero from 4 ~ 6mm.
Asphalt roads paving method of the present invention added finish-milling planing skill before sprinkling priming oil, the semi-rigid type base Interface Construction degree of depth is obviously increased, bond area becomes large, thus materially increase the friction interlocking of asphalt surface course and semi-rigid type base interlayer, asphalt surface course and semi-rigid type base shearing strength at intersection ability are strengthened greatly, adhesion strength strengthens, enhance interlocking rubbing action and the cementation of asphalt surface course and semi-rigid type base, and, the osmotic effect of priming oil is better, solve the problem of priming oil depth of penetration deficiency, it is made really to play consolidation, stable, connection, the effects such as waterproof.
Accompanying drawing explanation
Fig. 1 is road structure schematic diagram of the present invention.
Detailed description of the invention
Now the present invention is further described with embodiment by reference to the accompanying drawings, but the present invention is not limited only to following embodiment.
Embodiment 1
The bitumen pavement construction method of the present embodiment, comprises the following steps:
(1) Cement Stable Macadam Mixture mixed is transported to job site, pave evenly with paver by loose laying depth, after paving, immediately integer is carried out to compound, when the moisture content of compound is greater than optimum moisture content (+1% ~+2%) of regulation, immediately compound is rolled, be greater than the degree of compaction (95%) of regulation to degree of compaction, start health immediately 3 days, concrete rolling method is:
Roll 5 times with the earthmover of more than dead weight 25t, make rolling layers bottom closely knit, continue to roll with heavy three-roll road roller, make the closely knit and surfacing in rolling layers top, form semi-rigid type base 3.
(2) good to health semi-rigid type base 3 carries out finish-milling plane, cleaning, removes and loosens building stones.
Concrete finish-milling plane method is:
2.1) milling machine datum, horizontal wall inscription, the milling degree of depth is accurately adjusted according to reference point, surface level-meter remains normal duty, start milling, the at the uniform velocity travel speed of milling machine is 4m/min, controls the milling machine milling degree of depth slowly will adjust to requirement milling degree of depth 5mm from zero in first 10 meters;
2.2) the milling degree of depth is kept to be 5mm, when at the uniform velocity travelling to last 10m, control the milling machine milling degree of depth and be slowly reduced to zero from 5mm, brute force cleaning is carried out to semi-rigid type base 3 surface after the process of finish-milling plane, remove and loosen building stones, smooth semi-rigid type base 3 is provided with clear sharp-pointed corner angle, obtains finish-milling plane layer 4.
(3) rinsed by the cleaning agent of the semi-rigid type base 3 after cleaning, spray oil reservoir, fountain height is 1.4kg/m
2.Specifically:
One time is rinsed to the semi-rigid type base 3 surface cleaning machine after milling, guarantee semi-rigid type base 3 clean surface, without any impurity, pollution, the moistening substrate surface of appropriate watering, after distribution vehicle is in place, opens nozzle and exercise sprinkling forward by even speed, in whole working width and length range, spread is even, detect fountain height in time when spilling paving, fountain height is 1.4kg/m
2, the asphalt of penetrate layer of spread infiltrates basic unit's degree of depth and is not less than 3mm, not in surface trickling, forms oil film.
(4) after priming oil spread, no longer trickle, when length of penetration reaches 2mm, spread aggregate chips, carries out rolling 2 times with 18T rubber-tyred roller, forms Sub-sealing Course 2.
(5) on Sub-sealing Course 2, making temperature is the asphalt surface course 1 of 60 DEG C, paves evenly and rolls.
After checking the satisfactory quality confirming lower floor, making asphalt surface course 1, followed by rolling bituminous mixture after paving, the bituminous mixture after compacting meets the requirement of degree of compaction and planeness.Asphaltic road-mix surface course should cool by layer to be paved completely naturally, and mix surface temperature, can open to traffic lower than after 50 DEG C.
Embodiment 2
The bitumen pavement construction method of the present embodiment, comprises the following steps:
(1) identical with embodiment 1.
(2) good to health semi-rigid type base 3 carries out finish-milling plane, cleaning, removes and loosens building stones.
Concrete finish-milling plane method is:
2.1) milling machine datum, horizontal wall inscription, the milling degree of depth is accurately adjusted according to reference point, surface level-meter remains normal duty, start milling, the at the uniform velocity travel speed of milling machine is 5m/min, controls the milling machine milling degree of depth slowly will adjust to requirement milling degree of depth 4mm from zero in first 10 meters;
2.2) the milling degree of depth is kept to be 4mm, when at the uniform velocity travelling to last 10m, control the milling machine milling degree of depth and be slowly reduced to zero from 4mm, brute force cleaning is carried out to semi-rigid type base 3 surface after the process of finish-milling plane, remove and loosen building stones, smooth semi-rigid type base 3 is provided with clear sharp-pointed corner angle, obtains finish-milling plane layer 4.
(3) rinsed by the cleaning agent of the semi-rigid type base 3 after cleaning, spray oil reservoir, fountain height is 1.32kg/m
2.
Other step is identical with embodiment 1.
Embodiment 3
The bitumen pavement construction method of the present embodiment, comprises the following steps:
(2) identical with embodiment 1.
(2) good to health semi-rigid type base 3 carries out finish-milling plane, cleaning, removes and loosens building stones.
Concrete finish-milling plane method is:
2.1) milling machine datum, horizontal wall inscription, the milling degree of depth is accurately adjusted according to reference point, surface level-meter remains normal duty, start milling, the at the uniform velocity travel speed of milling machine is 3m/min, controls the milling machine milling degree of depth slowly will adjust to requirement milling degree of depth 6mm from zero in first 10 meters;
2.2) the milling degree of depth is kept to be 6mm, when at the uniform velocity travelling to last 10m, control the milling machine milling degree of depth and be slowly reduced to zero from 6mm, brute force cleaning is carried out to semi-rigid type base 3 surface after the process of finish-milling plane, remove and loosen building stones, smooth semi-rigid type base 3 is provided with clear sharp-pointed corner angle, obtains finish-milling plane layer 4.
(3) rinsed by the cleaning agent of the semi-rigid type base 3 after cleaning, spray oil reservoir, fountain height is 1.54kg/m
2.
Other step is identical with embodiment 1.
In order to verify the beneficial effect of bitumen pavement construction method of the present invention, verified further by following test, specific as follows:
Experimental material:
Test adopts cut back bitumen (AH-70 pitch mixes the kerosene of joining 30%) as priming oil, and bituminous mixture adopts AH-70 pitch, and gather materials employing limestone, and mixture gradation adopts AC-13 type.Cement stabilized macadam adopts Portland cement, and cement factor is 5%, adopts following cement stabilized macadam grating, see table 1.
Table 15% cement stabilized macadam grating
Screen size/mm | 26.5 | 19 | 16 | 13.2 | 9.5 | 4.75 | 2.36 | 1.18 | 0.6 | 0.3 | 0.15 | 0.075 |
Percent of pass (%) | 100 | 91.8 | 82.5 | 73.8 | 65.5 | 37.4 | 28 | 20.8 | 13.1 | 9 | 6 | 4 |
Test method:
The adhesion strength of interface to asphaltic road-mix surface course tested after the test of employing direct drawing is dug untreated interface and finish-milling measures, and adopts 45 ° of oblique scissor tests to measure boundary layer shear strengths, specific as follows:
Simulation finish-milling plane interface, adopts emery wheel to process cement stabilized macadam interface, and finish-milling plane interface milling severity control is 5 ± 1mm.
Test adopts cement stabilized macadam plate+sprinkling priming oil+bituminous mixture layer composite plate test specimen, adopts Measuring Device rolling shaping.By the time, after intensity reaches requirement, composite plate is cut into standard-sized test specimen.The sample dimensions (long × wide × high) that this time test adopts is: 45 ° of oblique scissor test sample dimensions (10 × 5 × 10) cm, direct drawing test sample dimensions (5 × 5 × 10) cm, and test temperature controls at 25 ± 2 DEG C, and logging is as follows:
Table 2 finish-milling plane interface is compared with the boundary layer strength test results at untreated interface
Interface form | Shear strength (MPa) | Adhesion strength (MPa) |
Untreated interface | 0.418 | 0.547 |
Finish-milling plane interface | 0.726 | 0.613 |
As can be seen from above-mentioned table 2, shear strength after untreated basic unit interface and asphaltic road-mix surface course bond and adhesion strength are all not as finish-milling digs the interface after processing and the bonding between asphaltic road-mix surface course, therefore significantly can strengthen inter-layer shearing strength to adopting finish-milling to dig process between semi-rigid type base and asphaltic road-mix surface course, also having certain enhancing effect to bond strength between layers.
Claims (1)
1. a bitumen pavement construction method, is characterized in that comprising the following steps:
1) compaction treatment is carried out, degree of compaction >=95%, health to the semi-rigid type base paved (3);
2) good to health semi-rigid type base (3) carries out finish-milling plane, in front 10m, the milling machine milling degree of depth slowly will adjust to the milling degree of depth 6mm of requirement from zero, the milling degree of depth is kept to be 6mm, to during last 10m, the milling machine milling degree of depth is reduced to zero from 6mm, milling speed is 3m/min, and the milling degree of depth is 6mm, cleaning, removes and loosens building stones;
3) rinsed by the cleaning agent of the semi-rigid type base (3) after cleaning, spray priming oil, fountain height is 1.54kg/m
2;
4) when step 3) priming oil no longer trickle, when length of penetration reaches 2 ~ 3mm, spread aggregate chips, rolls 1 ~ 2 time, forms Sub-sealing Course (2);
5) on Sub-sealing Course (2), making temperature is the asphalt surface course (1) of 55 ~ 70 DEG C, paves evenly and rolls.
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CN201210392981.XA CN102877389B (en) | 2012-10-16 | 2012-10-16 | Asphalt pavement paving method |
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CN201210392981.XA CN102877389B (en) | 2012-10-16 | 2012-10-16 | Asphalt pavement paving method |
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CN102877389B true CN102877389B (en) | 2015-05-13 |
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Cited By (1)
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CN108708246A (en) * | 2018-05-24 | 2018-10-26 | 中铁四局集团第工程有限公司 | High-speed loop curved surface asphalt paving anti-slip construction method |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
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CN103758004A (en) * | 2013-12-17 | 2014-04-30 | 英达科技有限公司 | Surface treatment method for base course of asphalt pavement |
CN108333083A (en) * | 2018-03-06 | 2018-07-27 | 长安大学 | A kind of assessment method of emulsification pitch penetration oil penetration depth |
CN108801905B (en) * | 2018-05-24 | 2020-11-13 | 长安大学 | Method for evaluating construction process effect of prime coat oil of semi-rigid base asphalt pavement |
CN111335174A (en) * | 2020-03-18 | 2020-06-26 | 安徽省新路建设工程集团有限责任公司 | Construction method for disposing waterproof bonding layer on non-smooth surface |
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US7004673B2 (en) * | 2003-03-04 | 2006-02-28 | Naum Sapozhnikov | Asphalt concrete pavement with concrete subbase with the enriched quarry limestone waste as a coarse aggregate |
CN101768914A (en) * | 2010-01-25 | 2010-07-07 | 重庆鹏方路面工程技术研究院有限公司 | Pavement structure for structure transfer and performance recovery of semi-rigid base asphalt pavement |
CN102251454A (en) * | 2011-04-27 | 2011-11-23 | 浙江大学 | Process for quickly repairing semi-rigid substrate damage of asphalt pavement |
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EP1368540A1 (en) * | 2001-03-15 | 2003-12-10 | Densit A/S | Reinforced semi flexible pavement |
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Patent Citations (3)
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US7004673B2 (en) * | 2003-03-04 | 2006-02-28 | Naum Sapozhnikov | Asphalt concrete pavement with concrete subbase with the enriched quarry limestone waste as a coarse aggregate |
CN101768914A (en) * | 2010-01-25 | 2010-07-07 | 重庆鹏方路面工程技术研究院有限公司 | Pavement structure for structure transfer and performance recovery of semi-rigid base asphalt pavement |
CN102251454A (en) * | 2011-04-27 | 2011-11-23 | 浙江大学 | Process for quickly repairing semi-rigid substrate damage of asphalt pavement |
Non-Patent Citations (3)
Title |
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Cited By (1)
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---|---|---|---|---|
CN108708246A (en) * | 2018-05-24 | 2018-10-26 | 中铁四局集团第工程有限公司 | High-speed loop curved surface asphalt paving anti-slip construction method |
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