CN108341627B - Noise pavement and construction method thereof - Google Patents

Noise pavement and construction method thereof Download PDF

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Publication number
CN108341627B
CN108341627B CN201810106528.5A CN201810106528A CN108341627B CN 108341627 B CN108341627 B CN 108341627B CN 201810106528 A CN201810106528 A CN 201810106528A CN 108341627 B CN108341627 B CN 108341627B
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proportion
asphalt mixture
mixture
asphalt
pavement
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CN201810106528.5A
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CN108341627A (en
Inventor
赵章华
李斌
郑哲南
张国建
杨洪坚
沈浩华
章建廷
郭哲杰
施海深
金卫东
金伟军
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Hangzhou Road And Bridge Group Co ltd
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Hangzhou Road And Bridge Group Co ltd
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    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B20/00—Use of materials as fillers for mortars, concrete or artificial stone according to more than one of groups C04B14/00 - C04B18/00 and characterised by shape or grain distribution; Treatment of materials according to more than one of the groups C04B14/00 - C04B18/00 specially adapted to enhance their filling properties in mortars, concrete or artificial stone; Expanding or defibrillating materials
    • C04B20/0076—Use of materials as fillers for mortars, concrete or artificial stone according to more than one of groups C04B14/00 - C04B18/00 and characterised by shape or grain distribution; Treatment of materials according to more than one of the groups C04B14/00 - C04B18/00 specially adapted to enhance their filling properties in mortars, concrete or artificial stone; Expanding or defibrillating materials characterised by the grain distribution
    • C04B20/0096—Fillers with bimodal grain size distribution
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B24/00—Use of organic materials as active ingredients for mortars, concrete or artificial stone, e.g. plasticisers
    • C04B24/24—Macromolecular compounds
    • C04B24/36—Bituminous materials, e.g. tar, pitch
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C7/00—Coherent pavings made in situ
    • E01C7/08—Coherent pavings made in situ made of road-metal and binders
    • E01C7/18—Coherent pavings made in situ made of road-metal and binders of road-metal and bituminous binders
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
    • C04B2111/0075—Uses not provided for elsewhere in C04B2111/00 for road construction
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
    • C04B2201/20—Mortars, concrete or artificial stone characterised by specific physical values for the density

Abstract

The invention discloses a noise pavement, which adopts a single-grade asphalt mixture, and comprises a medium-grain asphalt mixture, wherein the medium-grain asphalt mixture comprises the following components in parts by weight: the asphalt proportion of RA resin: 3.0% -4.5%; proportion of stone of grain size 18-22: 80.0% -85.0%; stone proportion of 8-12 grain size: 10.0% -15.0%; the cement proportion is as follows: 4.0 to 5.0 percent. The invention also provides a construction method of the noise pavement. The invention effectively avoids the difficult control of the technical indexes of the small-batch production of the hot-mixed asphalt mixture and the influence of the temperature of the hot-mixed asphalt mixture on the compactness, porosity and the like of the finished pavement; the technical problem that the bonding strength of the common asphalt mixture and the modified asphalt mixture to the asphalt mixture composed of the special single-stage matching ratio aggregates does not reach the standard is solved, and the test requirements are met.

Description

Noise pavement and construction method thereof
Technical Field
The invention relates to the field of constructional engineering, in particular to a noise pavement and a construction method thereof.
Background
In order to develop tires with a silencing effect, a large-aperture noise test pavement for a silencing effect test is developed by matching with a customer, a decibel value spectrum curve within 0-500 HZ of the international standard is referred, the decibel value of 260HZ of the middle section needs to be excited to be close to a range of 60, the whole decibel spectrum curve meets the similarity of more than 80 percent (+ -3 dB), and the asphalt pavement with the conventional proportion can not meet the requirement through test detection. And has the following disadvantages: 1. although a certain heat preservation covering measure is adopted in the transportation process of the hot-mixed asphalt mixture, the temperature loss is still generated to a certain degree, particularly the temperature of the mixture at the position of 20cm on the surface of a transport vehicle; moreover, the construction process of the asphalt mixture of the large-pore noise test road is long in time requirement, the temperature is quickly reduced during the construction of the mixture, the construction process time is compact, the temperature is greatly influenced by factors such as air temperature and construction time, and the quality control difficulty is high; 2. because the asphalt mixture is graded into single-stage distribution, the structural strength and the stability are low, and the condition of granule peeling occurs during the test; 3. the pores are not uniformly distributed after the pavement is rolled and formed, and the porosity (namely the structural depth detection standard) cannot meet the requirement, so the noise excitation decibel value of the pavement tire cannot meet the frequency spectrum requirement. It is necessary to lay a noisy road surface that meets the standard noise test for car tyres.
Disclosure of Invention
Aiming at the problems, the invention provides a noise road surface and a construction method thereof, which solve the defects of the prior art and can meet the requirements of standard noise tests of automobile tires.
The technical scheme adopted by the invention is as follows: the utility model provides a noise road surface, noise road surface adopts the single-stage to join in marriage bituminous mixture, bituminous mixture's ratio is:
the asphalt proportion of RA resin: 3.0 to 4.5 percent;
proportion of stone of grain size 18-22: 80.0% -85.0%;
stone proportion of 8-12 grain size: 10.0% -15.0%;
the cement proportion is as follows: 4.0 to 5.0 percent.
11. The invention further improves the method and the equipment, and further comprises a fine particle type asphalt mixture, wherein the proportion of the fine particle type asphalt mixture is as follows:
the asphalt proportion of RA resin: 3.0% -4.5%;
proportion of stone of grain size 14-17: 80.0% -85.0%;
stone proportion of grain size 3-5: 10.0% -15.0%;
the cement proportion is as follows: 4.0 to 5.0 percent.
The invention is further improved in that the pavement of the fine-grained asphalt mixture and the pavement of the medium-grained asphalt mixture are arranged in parallel at intervals.
The invention is further improved in that the density of the asphalt mixture is 2.5-3.0 g/cm3。
The invention also provides a construction method of the noise pavement, the noise pavement adopts a single-stage asphalt mixture, and the construction method comprises the following steps:
step 11: mixing the mixture according to the proportion of claim 1;
step 12: uniformly stirring the mixture for 4 min;
step 13: conveying materials;
step 14: paving: ironing without heating and rolling and leveling;
step 15: and (5) plastic film coating protection.
The invention is further improved in that the construction method takes less than or equal to 3 hours.
The invention is further improved in that a forced mixer is adopted in the step 12, a drum type mixing cylinder of the forced mixer is adopted, and a mixing blade is welded on the inner side wall of the mixing cylinder.
A further development of the invention is that step 14 is laid with a crawler spreader.
The invention is further improved in that a screed plate is adopted for paving and ironing without heating in step 14, and a roller is arranged on the paver for rolling and ironing.
The invention is further improved in that after step 14, a road roller is used for rolling, the road roller comprises a front rubber rear steel road roller and a nine-wheel rubber-wheel road roller, the front rubber rear steel road roller rolls the road surface twice in a reciprocating manner, static pressure is applied for the first time, and a rammer is applied for the second time for vibration; and the nine-wheel rubber-wheel road roller performs reciprocating rolling for 5 times.
Compared with the prior art, the invention has the beneficial effects that:
adopt novel material RA resin asphalt (cold mixing material) to replace high viscosity modified asphalt to carry out production construction, novel material RA resin asphalt has stronger cohesiveness than high viscosity modified asphalt, adjust the mixed material gradation of pitch simultaneously, the control material quantity, and the time and the homogeneity of stirring, thereby satisfy mixed material structural strength of pitch and stability, mix the best mode of rolling than and permutation and combination through designing more reasonable mixture, it satisfies the designing requirement to reach road surface porosity, make tire noise test frequency spectrum accord with and need to reach the test demand.
Description of the drawings:
FIG. 1 is a block diagram of a noisy road surface according to the invention;
FIG. 2 is an excitation schematic of the inventive noisy road surface.
The specific implementation mode is as follows:
the present invention will be described in detail with reference to specific examples.
The invention provides a noise pavement, which adopts single-grade asphalt mixture, comprising two types, wherein one type is medium-grain asphalt mixture (AC20), and the proportion of the asphalt mixture is RA resin asphalt proportion: 3.0 to 4.5 percent; proportion of stone of grain size 18-22: 80.0% -85.0%; stone proportion of 8-12 grain size: 10.0% -15.0%; the cement proportion is as follows: 4.0% -5.0%; another is a fine-grained asphalt mixture (AC16) which comprises the following components in percentage by weight: the asphalt proportion of RA resin: 3.0% -4.5%; proportion of stone of grain size 14-17: 80.0% -85.0%; stone proportion of grain size 3-5: 10.0% -15.0%; the cement proportion is as follows: 4.0 to 5.0 percent. The density of the finally formed asphalt mixture is 2.5-3.0 g/cm3. The two road surfaces of AC20 and AC16 are arranged in parallel at intervals, and each road surface has the width of 1 meter, and the total width is 4. And areAnd the AC20 construction depth is required to be 10 plus or minus 2 mm; the AC16 build depth requirement is 5 + -2 mm.
The invention also provides a construction method of the noise pavement, wherein the RA resin asphalt, stone and cement are mixed according to a proportion, a forced stirrer is adopted, the stirring cylinder is of a drum type, and stirring blades are welded on the inner side wall of the stirring cylinder, so that the asphalt mixture is stirred more uniformly. The stirring time is controlled to be 4min, stone and RA resin asphalt can be fully and uniformly mixed while the condition that the mixture is not adhered to the stirring cylinder is ensured, and the stone is fully wrapped by the resin asphalt. Then the material transporting equipment adopts a loader, so that the material is convenient to transport and unload, and the secondary pollution is avoided.
Paving by using a crawler-type paver;
leveling: the computer automatically aligns the rod on the 5m aluminum alloy ruler with well controlled elevation;
and (3) road surface leveling measures: ironing by an ironing plate, not heating, preventing RA resin asphalt from bonding, adding a roller behind the paver, and rolling and leveling by using the gravity of the roller;
stirring the cage state: when the asphalt is stopped, the mixture is placed at the stirring cage 1/2 to prevent the cold-mixed RA resin asphalt from being separated.
Preferably, manual truing is performed prior to rolling, with a small range of truing observed after the end of the first pass.
After paving, the front rubber and rear steel road roller is used for rolling back and forth for 2 times (the rubber wheel is in front), static pressure is carried out for the first time, the rammer is added to vibrate the road roller for the second time, then the road roller with nine wheels is used for rolling back and forth for 5 times, finally the front rubber and rear steel road roller is used for rolling for 1 time (the rubber wheel is in front), and the reasonable length is planned to be a rolling section according to the field condition. And after rolling, performing covering maintenance.
Because factors such as transportation, construction time, air temperature and the like have great influence on the temperature of the mixture, the construction is finished before the initial setting time (3 hours) of the RA resin asphalt mixture at normal temperature is controlled, and the influence of the temperature of the hot-mix asphalt mixture on the construction quality is avoided.
The novel material RA resin asphalt (cold mixing material) is adopted to replace high-viscosity modified asphalt for production and construction, the novel material RA resin asphalt has stronger cohesiveness than the high-viscosity modified asphalt, meanwhile, the gradation of the asphalt mixture is adjusted, the material consumption is controlled, and the stirring time and uniformity are controlled, so that the structural strength and stability of the asphalt mixture are met, the optimal rolling mode is formed by designing a more reasonable mixture matching ratio and arranging and combining, the pavement porosity meets the design requirement, and the tire noise test frequency spectrum meets the test requirement.
The above description is only for the preferred embodiment of the present invention and is not intended to limit the scope of the present invention, and all equivalent structural changes made by using the contents of the present specification and the drawings can be directly or indirectly applied to other related technical fields and are included in the scope of the present invention.

Claims (8)

1. The utility model provides a noise road surface, its characterized in that, noise road surface adopts the bituminous mixture of single gradation, including medium grain formula bituminous mixture, the ratio of medium grain formula bituminous mixture is:
the asphalt proportion of RA resin: 3.0% -4.5%;
proportion of stone of grain size 18-22: 80.0% -85.0%;
stone proportion of 8-12 grain size: 10.0% -15.0%;
the cement proportion is as follows: 4.0% -5.0%; the sum of the percentages of all the components in the medium particle type asphalt mixture is 100 percent;
the asphalt also comprises a fine particle type asphalt mixture, wherein the proportion of the fine particle type asphalt mixture is as follows:
the asphalt proportion of RA resin: 3.0% -4.5%;
proportion of stone of grain size 14-17: 80.0% -85.0%;
stone proportion of grain size 3-5: 10.0% -15.0%;
the cement proportion is as follows: 4.0% -5.0%; the sum of the percentages of all the components in the fine-grain asphalt mixture is 100%;
the pavement of the fine particle type asphalt mixture and the pavement of the medium particle type asphalt mixture are arranged in parallel.
2. The noise pavement of claim 1, wherein the density of the asphalt mixture is 2.5-3.0 g/cm3。
3. A construction method of a noise pavement adopts a single-stage asphalt mixture, and is characterized by comprising the following steps:
step 11: mixing the mixture according to the proportion of claim 1;
step 12: uniformly stirring the mixture for 4 min;
step 13: conveying materials;
step 14: paving: ironing without heating and rolling and leveling;
step 15: and (5) plastic film coating protection.
4. The construction method according to claim 3, wherein the time of the construction method is 3 hours or less.
5. The construction method according to claim 3, wherein a forced mixer is used in step 12, a drum type mixing cylinder is used in the forced mixer, and a mixing blade is welded to the inner side wall of the mixing cylinder.
6. A method according to claim 3, wherein step 14 is carried out using a crawler paver.
7. The construction method according to claim 6, wherein a screed plate is used for smoothing without heating in step 14, and a roller is provided on the paver for smoothing.
8. The method of construction of claim 6, wherein after step 14, rolling is performed using rollers comprising a front-rubber rear-steel roller and a nine-wheel roller, the front-rubber rear-steel roller rolling the road surface back and forth two times, the first time hydrostatic and the second time with ram jarring; and the nine-wheel rubber-wheel road roller performs reciprocating rolling for 5 times.
CN201810106528.5A 2018-02-02 2018-02-02 Noise pavement and construction method thereof Active CN108341627B (en)

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CN108341627B true CN108341627B (en) 2020-12-15

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102392413A (en) * 2011-09-30 2012-03-28 宁波天意钢桥面铺装技术有限公司 Pavement structure of combined steel bridge deck and pavement method thereof
CN102691244A (en) * 2012-05-30 2012-09-26 中铁四局集团有限公司 Construction method of noise type asphalt pavement
CN102828454A (en) * 2012-09-17 2012-12-19 宁波天意钢桥面铺装技术有限公司 Resin asphalt concrete paving structure capable of being constructed at normal temperature, and paving method thereof
CN103669152A (en) * 2013-11-04 2014-03-26 沈阳市政集团有限公司 Road surface construction method of ultrathin stone mastic asphalt mixture

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8658552B2 (en) * 2009-12-23 2014-02-25 Harbison-Walker Refractories Company Chromia-containing refractory
CN102134825B (en) * 2011-02-25 2012-07-04 大连市市政设计研究院有限责任公司 Dewatering and noise reduction bituminous concrete pavement
CN202247586U (en) * 2011-09-07 2012-05-30 重庆中设工程设计有限公司 Noise-reduction asphalt concrete road surface

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102392413A (en) * 2011-09-30 2012-03-28 宁波天意钢桥面铺装技术有限公司 Pavement structure of combined steel bridge deck and pavement method thereof
CN102691244A (en) * 2012-05-30 2012-09-26 中铁四局集团有限公司 Construction method of noise type asphalt pavement
CN102828454A (en) * 2012-09-17 2012-12-19 宁波天意钢桥面铺装技术有限公司 Resin asphalt concrete paving structure capable of being constructed at normal temperature, and paving method thereof
CN103669152A (en) * 2013-11-04 2014-03-26 沈阳市政集团有限公司 Road surface construction method of ultrathin stone mastic asphalt mixture

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