CN108164209A - A kind of composite noise reducing micro-surface area - Google Patents
A kind of composite noise reducing micro-surface area Download PDFInfo
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- CN108164209A CN108164209A CN201711277893.4A CN201711277893A CN108164209A CN 108164209 A CN108164209 A CN 108164209A CN 201711277893 A CN201711277893 A CN 201711277893A CN 108164209 A CN108164209 A CN 108164209A
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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
- C04B28/02—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 containing hydraulic cements other than calcium sulfates
- C04B28/04—Portland cements
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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
- C04B14/00—Use of inorganic materials as fillers, e.g. pigments, for mortars, concrete or artificial stone; Treatment of inorganic materials specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B14/02—Granular materials, e.g. microballoons
-
- 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
- C04B18/00—Use of agglomerated or waste materials or refuse as fillers for mortars, concrete or artificial stone; Treatment of agglomerated or waste materials or refuse, specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B18/04—Waste materials; Refuse
- C04B18/14—Waste materials; Refuse from metallurgical processes
- C04B18/141—Slags
-
- 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
- C04B18/00—Use of agglomerated or waste materials or refuse as fillers for mortars, concrete or artificial stone; Treatment of agglomerated or waste materials or refuse, specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B18/04—Waste materials; Refuse
- C04B18/18—Waste materials; Refuse organic
- C04B18/20—Waste materials; Refuse organic from macromolecular compounds
- C04B18/22—Rubber, e.g. ground waste tires
-
- 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
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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
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/52—Sound-insulating materials
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Civil Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Road Paving Structures (AREA)
- Tires In General (AREA)
Abstract
The invention discloses a kind of composite noise reducing micro-surface area, composition includes mineral aggregate, modified emulsifying asphalt, cement, external adding water, and modified emulsifying asphalt, cement, the addition weight of external adding water are as follows by the percentage calculation for accounting for the mineral aggregate weight respectively：Modified emulsifying asphalt additive amount is 9.5% ~ 11.5%, and cement mixing content is 0 ~ 2%, and additional water is 5% ~ 7%；4.75 grades of mineral aggregates select slag, and by improving mineral aggregate gradation, slag replaces routine aggregate and adds appropriate rubber powder, carries out the optimization design and its performance evaluation of noise reduction micro-surfacing mixture；Improve conventional construction technology simultaneously, and based on this technique, carry out the research of the Long-Term Properties changing rule on noise reduction micro-surface area road surface, obtain the match ratio, construction technology and technical performance changing rule on noise reduction micro-surface area road surface, so as to preferably examining and improve noise reduction micro-surface area scheme, make that it is suitable for engineering practices from now on.
Description
Technical field
The present invention relates to a kind of maintenance of surface technology, it particularly relates to a kind of composite noise reducing micro-surface area.
Background technology
Micro-surface area is to mix merga pass profession according to a specific ratio by modified emulsifying asphalt, mineral aggregate, water, filler and compound
Construction machinery uniformly paves in road surface, is remarkably improved the performance of road, meets rapid (in 1 hour) open to traffic
It is required that maintenance technology.Nearly ten years, micro-surface area is obviously prolonged service life with it, keep higher antiskid and wear-resisting property,
Open to traffic is fast, possess good track repair function and better sealing effect, possess higher economic benefit and environmental protection is imitated
Benefit.
With the further investigation of domestic and international road scientific research personnel and the extensive use of micro zooming, supported using micro-surface area
Shield technology build road surface and generate apparent noise problem and also cause people's common concern.Micro-surface area road rumble is apparently higher than general
Logical bituminous paving, not only seriously affects the comfort of driver and passenger, more influences urban environment and quality of residents'life, serious to make
The about development in an all-round way of micro-surface area maintenance technology.Further, since micro-surface area road surface is easily by outside environmental elements, construction technology and friendship
The influence of logical load, causes its long-term technology performance to change, therefore the research of the changing rule of micro-surfacing mixture performance is passing through
All there is very important realistic meanings for Ji, technology and environmental protection aspect.
Micro-surfacing mixture is in suspension compact structure, and the discreteness between coarse aggregate increases, and thickness gathers materials distribution easily not
Uniformly, it is difficult to form skeleton structure；Micro-surface area road surface thickness is only 10mm or so simultaneously, and the maximum nominal of micro-surfacing mixture
Grain size is 9.5mm, and in addition there may be a certain number of gill shape mineral aggregates, therefore its protrusion is apparent and the superposition of different-grain diameter mineral aggregate is super
Phenomena such as limit, generally occurs, and then makes to be formed the protrusion of a considerable amount of different heights on micro-surface area road surface, is formed uneven
Road table status, make micro-surface area road surface that there is larger construction depth, so as to more exacerbate the generation of its road rumble.
Therefore, micro-surfacing mixture thickness gather materials uneven distribution and caused by micro-surface area road table it is irregular and uneven
Apparent construction, while lack compacting process, cause micro-surface area pavement texture construction larger, exacerbate touching between road surface and tire
It hits, vibrate and effect of impact, so as to make micro-surface area road rumble notable.
For the problems in the relevant technologies, currently no effective solution has been proposed.
Invention content
For the above-mentioned technical problem in the relevant technologies, the present invention proposes a kind of composite noise reducing micro-surface area, can solve
The problem of micro-surface area road rumble.
To realize the above-mentioned technical purpose, the technical proposal of the invention is realized in this way：
A kind of composite noise reducing micro-surface area, composition includes mineral aggregate, modified emulsifying asphalt, cement, external adding water, described
Modified emulsifying asphalt, cement, the addition weight of external adding water are as follows by the percentage calculation for accounting for the mineral aggregate weight respectively：Modified milk
It is 9.5%~11.5% to change pitch additive amount, and cement mixing content is 0~2%, and additional water is 5%~7%；The grade of the mineral aggregate
With for：Standard mesh 9.5mm percent of pass ranging from 100%；Standard mesh 4.75mm percent of pass ranging from 70~90%；Standard screen
Hole 2.36mm percent of pass ranging from 45~70%；Standard mesh 1.18mm percent of pass ranging from 28~50%；Standard mesh 0.6mm
Percent of pass ranging from 19~34%；Standard mesh 0.3mm percent of pass ranging from 12~25%；Standard mesh 0.15mm percent of pass models
Enclose is 7~18%；Standard mesh 0.075mm percent of pass ranging from 5~15%, 4.75 grades of mineral aggregates select slag.
Further, the grading of the mineral aggregate is：Standard mesh 9.5mm percent of pass ranging from 100%；Standard mesh
4.75mm percent of pass ranging from 70%；Standard mesh 2.36mm percent of pass ranging from 57%；Standard mesh 1.18mm percent of pass models
Enclose is 50%；Standard mesh 0.6mm percent of pass ranging from 34%；Standard mesh 0.3mm percent of pass ranging from 25%；Standard mesh
0.15mm percent of pass ranging from 18%；Standard mesh 0.075mm percent of pass ranging from 15%.
Preferably, the addition weight of the modified emulsifying asphalt, cement, external adding water and rubber powder is respectively by accounting for the mineral aggregate weight
The percentage calculation of amount is as follows：Modified emulsifying asphalt additive amount is 11.5%, cement mixing content 1%, and additional water is 7%, glue
Powder volume is 1%, the rubber powder mesh number 80,.
Preferably, the matrix pitch of modified emulsifying asphalt is SKAH-90#, and emulsifier is octadecyl trimethyl chlorination
Ammonium, incorporation 1.5%, use dosage for 5% SBR latex modifying agent.
Preferably, the cement uses No. 42.5 Portland cements.
Preferably, the rubber powder uses damaged tire vulcanized rubber powder.
Beneficial effects of the present invention：By the actual measurement to micro-surface area road surface running vehicle noise, simultaneously induction and conclusion micro-surface area is analyzed
The mechanism of production of road surface running vehicle noise, the main reason in the hope of obtaining micro-surface area road surface strong noise and its main path of noise reduction；
By improving mineral aggregate gradation, slag replaces routine aggregate and adds appropriate rubber powder, carries out the optimization of noise reduction micro-surfacing mixture
Design and its performance evaluation；Conventional construction technology is improved simultaneously, and based on this technique, carries out the long-term of noise reduction micro-surface area road surface
The research of performance changing rule obtains the match ratio, construction technology and technical performance changing rule on noise reduction micro-surface area road surface,
So as to preferably examining and improve noise reduction micro-surface area scheme, make that it is suitable for engineering practices from now on.
Specific embodiment
The technical solution in the embodiment of the present invention is clearly and completely described below, it is clear that described embodiment
Only part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, the common skill in this field
Art personnel's all other embodiments obtained, shall fall within the protection scope of the present invention.
The selection of raw material：
(1) all technical of mineral aggregate (removing 4.75 grades) should meet《Highway engineering pitch and Asphalt Mixture Experiment rule
Journey》(JTJ052-2000) requirement.
(2) matrix pitch of modified emulsifying asphalt is SKAH-90#, and emulsifier is octadecyltrimethylammonium chloride
(1831), incorporation 1.5% uses dosage as 5% SBR latex modifying agent, all technical of modified emulsifying asphalt
It should meet《Micro-surface area and Slurry Seal Technology guide》In requirement about modified emulsifying asphalt.
(3) all technical of slag (4.75 grades) should meet《Road slag》(GB/T25824-2010) it requires.
(4) cement uses No. 42.5 Portland cements, and all technical of cement should meet《Highway cement coagulation
Soil surface construction technique normalizing》(JTGF-2003) corresponding requirements.
(5) rubber powder uses damaged tire vulcanized rubber powder, is ground using normal temperature method, and mixing and stirring technique by dry method adds in micro- table
Locate mixture.Damaged tire vulcanized rubber powder should be homogeneous, does not contain impurity, and no conglomeration and interlaced fiber exist, physics
And chemical technology index should meet《Road damaged tire vulcanized rubber powder》The corresponding requirements of (JT/T 797-2011).
《Micro-surface area and dilute poly- sealing covers guide》In not to noise reduction propose provide, the present invention is to design shape
Into a kind of composite noise reducing micro-surface area, other than noise reduction protrudes, other pavement performances also must satisfy certainly for it《Refer to
South》In every regulation.The maximum acoustic absorptivity that rubber powder noise reduction micro-surfacing mixture is measured using standing-wave-tube method is mixed as evaluation
Close the key index of material anti-acoustic capability；Using can duration of mixing, cohesive strength horizontal (30min and 60min), rut cross directional variations rate
And wet wheel abrasion loss (1h and 6d) is as the technical indicator for evaluating its pavement performance.
Embodiment：
1 mineral aggregate gradation of table
It is tested by mix, the choosing of the ratio of Cohesion torque test, Load wheel test, Wet track abrasion test, Stepwise Screening outlet
Met with performance《Micro-surface area and Slurry Seal Technology guide》It is required that match ratio, can obtain meeting code requirement five kinds match
Composition and division in a proportion, pavement performance index are summarized as follows.
2 five kinds of match ratio pavement performance indexs of table
The technical requirement of 3 micro-surfacing mixture of table
| Pilot project | Technical manual requirement | Test method |
| Can duration of mixing (25 DEG C) not less than (s) | 120 | T0757-2011 |
| Wet wheel abrasion loss immersion 1h is not more than (g/m2) | 540 | T0752-2011 |
| Rut deformation rate (transverse direction) is no more than (%) | 5 | T0756-2011 |
| Maximum acoustic absorptivity | --- | GB/T 18696.1-2004 |
Orthogonal Experiment and Design：Using match ratio, rubber powder mesh number and rubber powder volume as major influence factors, each factor difference
By the orthogonal test of the coverage, i.e. Three factors-levels of three horizontal control, factor level table is as follows：
4 factors of table-water-glass
Based on above factor-water-glass, by duration of mixing, rut deformation rate (transverse direction), wet wheel abrasion loss (1h) and
Primary evaluation index of the maximum acoustic absorptivity as orthogonal test, the influence to compound micro-surfacing mixture noise reduction and pavement performance
Factor carries out quantitative analysis, determines key influence factor, and the combination of final optimization pass noise reduction match ratio makes mixture meet micro-surface area
On the basis of pavement performance requirement, the noise reduction that is optimal.
5 orthogonal experiments of table
On the basis of orthogonal test, with extremum difference analysis, result of the test is analyzed, it is more than overall balance it is each because
Influence of the element to Asphalt Mixture and anti-acoustic capability, optimum organization micro-surfacing mixture noise reduction schemes finally determine rubber powder
Noise reduction micro-surfacing mixture match ratio.
Range analysis：
According to more than orthogonal experiment data, range analysis is carried out, obtains following result.
6 range analysis result of table
(1) it can be obtained according to more than range analysis result, the major influence factors of each performance：
1) duration of mixing：
RC ＞ RA ＞ RB, therefore, can obtain, the influence factor of duration of mixing is according to range analysis：C rubber powder volume ＞ A match
Composition and division in a proportion ＞ B rubber powder mesh numbers
2) wet wheel abrasion loss：
RA ＞ RC ＞ RB, therefore, can obtain according to range analysis, and the influence factor of wet wheel abrasion loss is：
A match ratio ＞ C rubber powder volume ＞ B rubber powder mesh numbers
3) rubber powder volume：
RA ＞ RC ＞ RB, therefore, can obtain, the influence factor of maximum acoustic absorptivity is according to range analysis：
A match ratio ＞ C rubber powder volume ＞ B rubber powder mesh numbers
4) rut deformation rate (transverse direction)：
RA ＞ RC ＞ RB, therefore, can obtain according to range analysis, and the influence factor of lateral rut deformation rate is：
A match ratio ＞ C rubber powder volume ＞ B rubber powder mesh numbers
(2) factor of each technical indicator influences horizontal sequence
By more than range analysis, the influence factor of each technical indicator is as follows：
1) duration of mixing：C rubber powder volumes --- A match ratios --- B rubber powder mesh numbers
2) wet wheel abrasion loss：A match ratios --- C rubber powder volumes --- B rubber powder mesh numbers
3) rut deformation rate (transverse direction)：A match ratios --- C rubber powder volumes --- B rubber powder mesh numbers
4) maximum acoustic absorptivity：A match ratios --- C rubber powder volumes --- B rubber powder mesh numbers
(1) crucial Con trolling index is determining
With reference to《Guide》The level trend figure of requirement, each factor and factor primary-slave relation to each technical indicator, synthesis are examined
Four technical indicators more than examining can obtain the crucial Con trolling index that wet wheel abrasion loss (immersion 1h) is this orthogonal test, to entire
The influence of experiment is most important.
(2) optimum level of factor A (match ratio) is determining：
《Guide》It is required that wet wheel abrasion loss (immersion 1h) is no more than 540g/m2, can from tendency chart and factor primary-slave relation
, factor A (match ratio) is major influence factors, and the influence to wet wheel abrasion loss (immersion 1h) is most important, and match ratio 1.,
3. match ratio is all unsatisfactory for requiring, only 2. match ratio is met the requirements.It was therefore concluded that factor A takes level 2, i.e. A2
It is best.
It being analyzed with rut deformation rate (transverse direction), factor A (match ratio) is its major influence factors,《Guide》It is required that rut becomes
Form quotient (transverse direction) is no more than 5%, and on this basis, transversely deforming rate is smaller, and rutting resistance is better.With reference to tendency chart and factor
Primary-slave relation can obtain, and factor A takes level 2 best, i.e., A2 is most suitable.
From can duration of mixing analysis, factor C (rubber powder volume) is its major influence factors, and factor A (match ratio) is secondary
Influence factor.《Guide》It is required that can duration of mixing should be not less than 120s.Incorporation engineering practical experience, can duration of mixing should not mistake
It is short, there should be certain regulating time.Therefore, factor A (match ratio) takes level 2, i.e. A2 is most suitable.
It is analyzed with maximum acoustic absorptivity, major influence factors are still factor A (match ratio), and the noise reduction on micro-surface area road surface
The raising of performance must be set up on the basis of its pavement performance is met, i.e. the technical indicator-most of this experiment reflection anti-acoustic capability
Big acoustic absorptivity, it is necessary to be met with other 3 technical indicators《Guide》It is required that for prerequisite.Therefore, consider factor A to take
Level 2, i.e. A2 are most suitable.Therefore, A2 is optimal level.
(3) optimum level of factor C (rubber powder volume) is determining：
Factor C (rubber powder volume) is affected to wet wheel abrasion loss (immersion 1h), with reference to《Guide》Related request, because
The level trend figure and factor primary-slave relation of element can obtain, C1 and C2 differences are little, can use level 1 or level 2, i.e. C1 or C2；From
Duration of mixing is analyzed, and major influence factors are satisfied by for factor C, C1 and C2《Guide》It is required that, you can take C1 or C2；From rut
Deformation rate (transverse direction) is analyzed, and secondary influence factor is still factor C, and rut deformation rate (transverse direction) variation of each levels of factor C
Less, 3 levels are satisfied by technology requirement；It is analyzed with maximum acoustic absorptivity, preferably selects C2 and C1.More than comprehensive analysis each index
Optimal conditions, it is optimal level that should take C1 or C2.
(4) optimum level of factor B (rubber powder mesh number) is determining：
Influences of the factor B (rubber powder mesh number) to each technical indicator is minimum, with reference to《Guide》It is required that, the level trend of factor
Figure and factor primary-slave relation with wet wheel abrasion loss (immersion 1h) analysis, take level 2, i.e. B2 is most suitable；And from can duration of mixing,
Rut change rate (transverse direction) and maximum acoustic absorptivity analysis, the difference of the result of the test caused by level 2 and level 3 is smaller, i.e.,
Desirable B2 or B3；The more than comprehensive analysis optimal conditions of each index, it is optimal level that should take B2.
(5) optimal combination is determining：
By the analysis to the influence above to each factor and overall balance, can obtain drawing a conclusion：
1) match ratio 2., cement mixing content：1%th, additional water 7%, asphalt content 11.5%, rubber powder volume 1%, rubber powder mesh
Number 80.
2) match ratio 2., cement mixing content：1%th, additional water 7%, asphalt content 11.5%, rubber powder volume 2%, rubber powder mesh
Number 80.
I.e.：A2B2C1 and A2B2C2 is the optimum mix that this orthogonal test obtains.
The verification of performance effect of optimization：
Optimum mix the option A 2B2C1 and A2B2C2 determined according to more than orthogonal test and optimum organization, prepares rubber powder
Noise reduction micro-surfacing mixture, and its anti-acoustic capability and the evaluation of comprehensive pavement performance are carried out, to verify optimum mix scheme
Performance effect of optimization and feasibility.
The maximum acoustic absorptivity of rubber powder noise reduction micro-surfacing mixture is wherein measured using standing-wave-tube method as evaluation mixture
The key index of anti-acoustic capability；Using can duration of mixing, cohesive strength horizontal (30min and 60min), rut cross directional variations rate and wet
Abrasion loss (1h and 6d) is taken turns as the technical indicator for evaluating its pavement performance.More than technical indicator evaluation result see the table below.
7 pavement performance evaluation result of table
It can be obtained by more than result of the test：By option A 2B2C1, match ratio 2., cement mixing content 1%, additional water 7%, pitch
Each pavement performance index of rubber powder noise reduction micro-surfacing mixture prepared by dosage 11.5%, rubber powder volume 1%, rubber powder mesh number 80 is equal
Meet《Guide》Related request, good construction workability, flexibility and the cohesiveness having；In terms of it embodies anti-acoustic capability
Technical indicator --- maximum acoustic absorptivity has reached 52.5%, and anti-acoustic capability optimum organization achieves noticeable achievement, and has apparent drop
It makes an uproar advantage.And it is not met by the wet wheel abrasion loss of the option A 2B2C2 micro-surfacing mixtures prepared《Guide》Related request,
Its attrition resistance can be apparent insufficient, therefore option A 2B2C2 should give and cast out.
The light utilization for grinding compaction process：
Rolling and forming machine and rubber spacer are used to simulate the actual motion of light-duty pneumatic-tired rollers, to noise reduction micro-surface area
Mixture is slightly rolled.Adjust every test parameters of rolling and forming machine：The dead line load of rolling and forming machine is 154KN/
Cm, rolling layer are 5 times, rolling speed 3.5km/h.
In conclusion by means of the above-mentioned technical proposal of the present invention, reach following effect：Composite noise reducing micro-surface area with it is general
Logical micro-surface area is compared, have the more sufficient time pave molding, construction operability is strong and mixture curing degree is good
Technical advantage；Its high-temperature behavior (dynamic stability：2980 times/mm) improve 89.2%；(low temperature bending resistance destroys should for its cryogenic property
Become) mention 23.3%；Shear behavior (0.6Mpa) improves 42.9%；The anti-acoustic capability of composite noise reducing micro-surface area is notable, compares
Common micro-surface area road surface, sqouynd absorption lowering noise performance improve 25%, and vibration and noise reducing performance has been respectively increased 17.4%, while it is dropped
Performance of making an uproar is steady in a long-term, and increases (anti-acoustic capability improves 3.6%).Therefore the noise reduction of compound micro-surface area of making an uproar is with the obvious advantage, it can
Effectively to make up the technological deficiency on common micro-surface area road surface, therefore the application of composite noise reducing micro-surface area has very positive reality
Meaning；Composite noise reducing micro-surface area compared with common micro-surface area, stablize by composite noise reducing micro-surface area Long-Term Properties：Multiple
Under the repeated action of wheel load, significantly attenuation (is wherein distinguished for the construction depth and friction coefficient of noise reduction micro-surfacing mixture
Attenuation 37% and 30.9%), but still meet code requirement；Composite noise reducing micro-surface area is using slag and rubber powder as mixture group
Into part, anti-acoustic capability can be not only improved, can more turn waste into wealth recycling, meet sustainable development instantly and environmental-friendly
Construction theory.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
With within principle, any modification, equivalent replacement, improvement and so on should all be included in the protection scope of the present invention god.
Claims (6)
1. a kind of composite noise reducing micro-surface area, which is characterized in that its composition includes mineral aggregate, modified emulsifying asphalt, cement, outer
Add water, the modified emulsifying asphalt, cement, external adding water addition weight respectively by accounting for the percentage calculation of the mineral aggregate weight such as
Under：Modified emulsifying asphalt additive amount is 9.5% ~ 11.5%, and cement mixing content is 0 ~ 2%, and additional water is 5% ~ 7%；The grade of the mineral aggregate
With for：Standard mesh 9.5mm percent of pass ranging from 100%；Standard mesh 4.75mm percent of pass ranging from 70~90%；Standard screen
Hole 2.36mm percent of pass ranging from 45~70%；Standard mesh 1.18mm percent of pass ranging from 28~50%；Standard mesh 0.6mm
Percent of pass ranging from 19~34%；Standard mesh 0.3mm percent of pass ranging from 12~25%；Standard mesh 0.15mm percent of pass models
Enclose is 7~18%；Standard mesh 0.075mm percent of pass ranging from 5~15%, 4.75 grades of mineral aggregates select slag.
2. a kind of composite noise reducing micro-surface area according to claim 1, which is characterized in that the grading of the mineral aggregate is：Standard
Sieve pore 9.5mm percent of pass ranging from 100%；Standard mesh 4.75mm percent of pass ranging from 70%；Standard mesh 2.36mm passes through
Rate ranging from 57%；Standard mesh 1.18mm percent of pass ranging from 50%；Standard mesh 0.6mm percent of pass ranging from 34%；Mark
Quasi- sieve pore 0.3mm percent of pass ranging from 25%；Standard mesh 0.15mm percent of pass ranging from 18%；Standard mesh 0.075mm leads to
Cross rate ranging from 15%.
3. a kind of composite noise reducing micro-surface area according to claim 1, which is characterized in that the modified emulsifying asphalt, cement,
The addition weight of external adding water and rubber powder is as follows by the percentage calculation for accounting for the mineral aggregate weight respectively：Modified emulsifying asphalt additive amount
It is 11.5%, cement mixing content 1%, additional water is 7%, and rubber powder volume is 1%, the rubber powder mesh number 80.
A kind of 4. composite noise reducing micro-surface area according to claim 1, which is characterized in that the matrix pitch of modified emulsifying asphalt
For SKAH-90#, emulsifier is octadecyltrimethylammonium chloride, and incorporation is 1. 5%, use dosage for 5% SBR latex
Modifying agent.
5. a kind of composite noise reducing micro-surface area according to claim 1, which is characterized in that the cement is common using No. 42.5
Portland cement.
6. a kind of composite noise reducing micro-surface area according to claim 1, which is characterized in that the rubber powder vulcanizes rubber using damaged tire
Rubber powder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711277893.4A CN108164209A (en) | 2017-12-06 | 2017-12-06 | A kind of composite noise reducing micro-surface area |
Applications Claiming Priority (1)
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| CN108083699A (en) * | 2017-12-06 | 2018-05-29 | 北京建筑大学 | A kind of Novel road polymer composition and preparation method thereof |
| CN110451857A (en) * | 2019-08-10 | 2019-11-15 | 海南省交通规划勘察设计研究院 | Activate shoddy noise reduction micro-surfacing mixture |
| CN110563385A (en) * | 2019-07-11 | 2019-12-13 | 上海仰胜新材料科技有限公司 | Steel slag micro-surfacing road surface repairing material formula |
| CN117567086A (en) * | 2023-11-29 | 2024-02-20 | 山东东青公路有限公司 | Wear-resistant noise-reducing micro-surfacing mixture doped with solid waste aggregate and preparation method thereof |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108083699A (en) * | 2017-12-06 | 2018-05-29 | 北京建筑大学 | A kind of Novel road polymer composition and preparation method thereof |
| CN108083699B (en) * | 2017-12-06 | 2020-12-25 | 北京建筑大学 | Novel road polymer mixture and preparation method thereof |
| CN110563385A (en) * | 2019-07-11 | 2019-12-13 | 上海仰胜新材料科技有限公司 | Steel slag micro-surfacing road surface repairing material formula |
| CN110451857A (en) * | 2019-08-10 | 2019-11-15 | 海南省交通规划勘察设计研究院 | Activate shoddy noise reduction micro-surfacing mixture |
| CN110451857B (en) * | 2019-08-10 | 2021-11-19 | 海南省交通规划勘察设计研究院 | Activated waste rubber powder noise-reducing micro-surfacing mixture |
| CN117567086A (en) * | 2023-11-29 | 2024-02-20 | 山东东青公路有限公司 | Wear-resistant noise-reducing micro-surfacing mixture doped with solid waste aggregate and preparation method thereof |
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