CN107299575A - A kind of voidage is less than 3% high dense asphalt concrete MAC production method - Google Patents
A kind of voidage is less than 3% high dense asphalt concrete MAC production method Download PDFInfo
- Publication number
- CN107299575A CN107299575A CN201710694643.4A CN201710694643A CN107299575A CN 107299575 A CN107299575 A CN 107299575A CN 201710694643 A CN201710694643 A CN 201710694643A CN 107299575 A CN107299575 A CN 107299575A
- Authority
- CN
- China
- Prior art keywords
- mac
- aggregate
- production
- asphalt
- sieve
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 63
- 239000011384 asphalt concrete Substances 0.000 title claims abstract description 9
- 239000000203 mixture Substances 0.000 claims abstract description 57
- 239000010426 asphalt Substances 0.000 claims abstract description 45
- 239000004567 concrete Substances 0.000 claims abstract description 35
- 238000000034 method Methods 0.000 claims abstract description 7
- 229910052500 inorganic mineral Inorganic materials 0.000 claims description 41
- 239000011707 mineral Substances 0.000 claims description 41
- 239000011295 pitch Substances 0.000 claims description 24
- 239000000843 powder Substances 0.000 claims description 20
- BDAGIHXWWSANSR-UHFFFAOYSA-M Formate Chemical compound [O-]C=O BDAGIHXWWSANSR-UHFFFAOYSA-M 0.000 claims description 18
- 238000012360 testing method Methods 0.000 claims description 18
- 238000002474 experimental method Methods 0.000 claims description 15
- 239000011800 void material Substances 0.000 claims description 14
- 230000005484 gravity Effects 0.000 claims description 11
- 238000007655 standard test method Methods 0.000 claims description 11
- 239000000463 material Substances 0.000 claims description 8
- 239000004575 stone Substances 0.000 claims description 8
- 238000012887 quadratic function Methods 0.000 claims description 5
- 230000033228 biological regulation Effects 0.000 claims description 4
- 238000002715 modification method Methods 0.000 claims description 4
- 238000009795 derivation Methods 0.000 claims description 2
- 238000000611 regression analysis Methods 0.000 claims description 2
- 238000013461 design Methods 0.000 abstract description 7
- 201000004569 Blindness Diseases 0.000 abstract description 2
- 238000012795 verification Methods 0.000 abstract 2
- 238000004364 calculation method Methods 0.000 description 19
- 239000002689 soil Substances 0.000 description 4
- 238000004458 analytical method Methods 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000005204 segregation Methods 0.000 description 2
- 238000010998 test method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 238000007405 data analysis Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
Classifications
-
- 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
- C04B26/00—Compositions of mortars, concrete or artificial stone, containing only organic binders, e.g. polymer or resin concrete
- C04B26/02—Macromolecular compounds
- C04B26/26—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
- E01C19/00—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
- E01C19/02—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for preparing the materials
- E01C19/05—Crushing, pulverising or disintegrating apparatus; Aggregate screening, cleaning, drying or heating apparatus; Dust-collecting arrangements specially adapted therefor
-
- 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
-
- 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
- C04B2201/50—Mortars, concrete or artificial stone characterised by specific physical values for the mechanical strength
Landscapes
- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Road Paving Structures (AREA)
Abstract
It is less than 3% high dense asphalt concrete MAC production method the present invention relates to a kind of voidage, the multiple key sieves of this method setting go out the asphalt mix design of a high compact with corpse, by determining asphalt optimum content and verifying after corresponding physical and mechanical property indexs, the high dense asphalt concrete is carried out actual production with batch (-type) batching plant by judgement, amendment, it is determined that final mixture proportion, and properties verification experimental verification is carried out to the bituminous concrete of the actual production.Mixture proportion of the present invention from actual effect determination, avoid the influence that the blindness and various mechanical parameters of gradation design are matched somebody with somebody to level, reproduce accurate, it is widely used, not only asphalt content is smaller for the bituminous concrete produced in this way, and properties all meet use requirement, high-quality, stable bituminous concrete can be produced with relatively low cost.
Description
Technical field
The present invention relates to aggregate grading design and bituminous concrete production field, more particularly to a kind of pitch of high compact are mixed
Production application of the solidifying soil in batch (-type) batching plant.
Background technology
Bituminous concrete be by pitch and mineral aggregate cylinder is mixed by batch (-type) batching plant under the conditions of certain temperature in blade
The general name of the mixture of certain time is stirred, mineral aggregate part is the hot aggregate by different Vibration Screen hole gauge lattice according to certain
Mixture proportion composition, it is determined that the unique mineral aggregate gradation of ratio correspondence, there is significant shadow to asphaltic concrete road performance
Ring.First, determine that a reference level for intending using is matched somebody with somebody；Secondly, the single of different size mineral aggregate is determined by sieve test respectively
Gradation composition and computer calculation method determine mixing for each shelves different size building stones matched somebody with somebody as far as possible in key sieve percent of pass close to reference level
After ratio and target formate gradation composition, checking test is carried out；Finally, different Vibration Screen hole gauges are determined by sieve test respectively
The single gradation composition of the hot aggregate of lattice and computer calculation method are determined as far as possible in key sieve percent of pass close to each of target formate gradation composition
After the mixture proportion and production formate gradation composition of the hot aggregate of the different Vibration Screen hole gauge lattice of shelves, final mixed ratio is obtained by amendment
Example, and make a service test；This method it is determined that high dense asphalt concrete mineral aggregate gradation when exist it is following not enough：
（1）The change of building stones autologous density can not be weighed to the annoyance level of coarse aggregate clearance in bituminous concrete, faced in production
The risk of gradation adjustment, and increase the cost of experiment and production.
（2）It can not consider because processing characteristics cause voidage and compacting of the inevitable sex differernce of stone shape to mineral aggregate gradation
The influence of degree.
（3）The Gradation Segregation in production process can not be avoided, due to the dry and wet degree of building stones, shape, vibratory sieve size, is inclined
The reasons such as angle, exciting force, vibration frequency cause the screening efficiency of every tray concrete each shelves vibratory sieve in production all to change, and need
The actual grating that often obtained in production by extraction test is wanted to correct the mixture proportion of the hot aggregate of each shelves.
（4）The direct Instructing manufacture of result of the test, the required precision of experience and equipment to correlation test personnel is high, different
Batch (-type) batching plant can just be obtained by lot of experiments raw material and machinery variation tendency, otherwise be difficult produce it is qualified
High dense asphalt concrete.
（5）In engineering, testing crew sampling arbitrarily, test coarse, decking and rolling not in time, mechanical combination it is unreasonable to this
The popularization and application of method have larger resistance.
Analyze, the production of bituminous concrete has larger variability, produced it is difficult to which preferable level is matched somebody with somebody more than,
Also the understanding to raw material and vibratory sieve variation tendency is lacked.Based on this, patent of the present invention proposes that a kind of pitch of high compact is mixed
The production method of soil is coagulated, matches somebody with somebody the isolation matched somebody with somebody with design level at utmost to reduce actual production level, so as to ensure pitch coagulation
The quality and performance of soil.
The content of the invention
In view of above-mentioned analysis, the present invention is intended to provide a kind of production method of the bituminous concrete of high compact, to reduce
Gradation adjustment risk in bituminous concrete production process, drip is significantly reduced on the premise of raw material stabilization, bitumen aggregate ratio are relatively low
The voidage of blue or green concrete, to make up Gradation Segregation, the loss of compactness that demixing temperature is caused is so as to improving bituminous concrete
Pavement performance.
The purpose of the present invention is mainly achieved through the following technical solutions.
A kind of production method of the bituminous concrete of high compact, its step is as follows.
P1, the nominal maximum aggregate size according to bituminous concrete, from multiple standard screens and determine crucial sieve, for coarse aggregate
Stepping is carried out according to standard screen sieve aperture, stepping is re-started according to key sieve sieve aperture for fine aggregate and miberal powder.
P2, building stones are sieved, store thick each shelves, fine aggregate and determine the quality of fine aggregate and miberal powder in each sieve
Percent of pass.
P3, the bulk specific gravity and apparent relative density for determining each shelves coarse aggregate, and fine aggregate and miberal powder table
See relative density.
P4, according to reference level with MAC-13-1 determine that each shelves gather materials mixture proportion M1 and target formate gradation composition MAC-13-2.
P5, according to M1 MAC-13-2 is verified, by abscissa of bitumen content, void in mineral aggregate be ordinate, build
Vertical rectangular coordinate system, the void in mineral aggregate of different pitches content is plotted in rectangular coordinate system, and determine equation parameter and paint
Make its function curve.
P6, MAC-13-2 optimum asphalt content is determined according to equation and its function curve and examines each under optimum asphalt content
Item physical and mechanical property indexs.
P7, according to batch (-type) batching plant Vibration Screen hole gauge lattice to hot aggregate carry out stepping, determine the hot aggregate of each shelves each
The quality percent of pass of individual sieve.
P8, the bulk specific gravity and apparent relative density for determining each shelves coarse aggregate, and fine aggregate are apparent relatively close
Degree.
P9, determine according to MAC-13-2 the hot aggregate mixture proportion S1 of each shelves and production formate gradation composition MAC-13-3.
P10, the actual mineral aggregate gradation R1 produced as a trial according to S1, sampled, testing the bituminous concrete for determining trial production
And determine a need for being modified the actual mineral aggregate gradation, formally produced according to S1 if it need not correct.
P11, S1 is modified according to MAC-13-3 obtained after S2, repeat step P10.
P12, repeat step P11, until the actual grating and MAC-13-3 of the bituminous concrete of trial production are in key sieve
Percent of pass deviation be less than after setting value, it is determined that the S (n) after amendment is qualified, n-1 represents total times of revision.
P13, formally produced according to S (n), examine every physical and mechanical property indexs of the bituminous concrete of production
Afterwards, it regard S (n) as final production mixture proportion.
In the step P1, bituminous concrete nominal maximum aggregate size is 13.2mm, and the screen-aperture of the standard screen used is：
13.2 mm、9.5 mm、4.75mm、2.36mm、1.18mm、0.6mm、0.3mm、0.15mm、0.075mm。
In the step P1,13.2 mm, 9.5 mm, 4.75mm, 2.36mm and 0.075mm sieve apertures are considered as crucial sieve,
Coarse aggregate is divided into 16-13.2mm, 13.2-9.5mm, 9.5-4.75mm, 4.75-2.36mm, and fine aggregate is divided into 2.36-
0.075mm and miberal powder totally 6 grades of mineral aggregates.
In the step P3, use《Highway engineering is gathered materials testing regulations》（JTG-E42）In standard test method determine
The bulk specific gravity and apparent relative density of each shelves coarse aggregate, and fine aggregate and miberal powder apparent relative density.
In the step P4,6 grades of ore deposits are determined in the quality percent of pass of each key sieve with MAC-13-1 according to reference level
The mixture proportion M1 and target formate gradation composition MAC-13-2 of material.
In the step P5, use《Highway engineering pitch and Asphalt Mixture Experiment code》（JTG E20-2011）In
Standard test method determines that 5 different pitches consumptions distinguish corresponding void in mineral aggregate, and using asphalt content as between transverse axis, mineral aggregate
Gap rate is that the longitudinal axis is plotted in rectangular coordinate system.
In the step P5, the curve drawn out is carried out with quadratic function by Microsoft Excel by regression analysis, obtained
Regression equation Y=AX2+BX+C.
In the step P6, to regression equation derivation and minimum X=- B/ (2*A) is determined, it is corresponding using the minimum
Asphalt content is asphalt optimum content and used《Highway engineering pitch and Asphalt Mixture Experiment code》（JTG E20-2011）
In standard test method determine bulk specific gravity under the asphalt optimum content, voidage, void in mineral aggregate, saturation
Degree, stability and flow valuve.
In the step P7, the screen-aperture of the vibratory sieve used is：16mm, 11 mm, 6 mm, 3 mm, draw hot aggregate
Be divided into 16-11 mm, 11-6 mm, 6-3 mm, less than 3 mm and miberal powder totally 5 grades of mineral aggregates.
In the step P9, by linear Planning Tool in Microsoft Excel determine 4 grades of aggregates and miberal powder mixture proportion and
Formate gradation composition is produced, the formate gradation composition and MAC-13-2 is met in the deviation of the quality percent of pass of key sieve and bar less than 5%
Corresponding mixture proportion is S1 during part, and corresponding production formate gradation composition is MAC-13-3.
In the step P10, use《Highway engineering pitch and Asphalt Mixture Experiment code》（JTG E20-2011）In
Standard test method determine trial production in the corresponding actual mineral aggregate gradation R1 of S1.
In described step P10, P11, P12, with MAC-13-3 and the deviation requirement of the key sieve quality percent of pass of setting：
13.2mm, 9.5 mm, 4.75 mm≤± 3%, 2.36 mm≤± 2% and 0.075 mm≤± 1% are criterion A, are adjusted with single
The quality percentage point of part 1 that A is unsatisfactory in whole S1 is modification method B.
In described step P10, P11, P12, judge whether R1 needs amendment according to A, as that need to correct, adjusted according to B, weight
The requirement of retrial production, judgement and amendment up to meeting A, is determined for compliance with the S (n) of requirement and checks what is formally produced according to S (n)
The every physical and mechanical property and pavement performance index of bituminous concrete, and the bituminous concrete of the high compact to the actual production
It is named as MAC-13.
The present invention has the beneficial effect that：
Compared with prior art, the present invention proposes the asphalt mix design of a high compact, by determining asphalt optimum content
And verify after corresponding physical and mechanical property indexs, the high dense asphalt concrete is mixed with batch (-type) by judging, correcting
Actual production is carried out with building, its outstanding advantages is embodied in following five aspect.
（1）Propose that a reference level pairing gradation design that knowhow is verified and had successfully by lot of experiments carries out essence
Certainly position, can at utmost avoid the blindness and repeatability during gradation design and reduce experimentation cost.
（2）According to the present invention carry out reference level with checking can reduce the density of building stones, the interference that shape is matched somebody with somebody to reference level.
（3）According to present invention determine that asphalt optimum content it is relatively low, can ensure asphalt concrete quality on the premise of
It is at utmost cost-effective.
（4）Whether actual mineral aggregate gradation meets the criterion of requirement and modification method and can at utmost protect in the present invention
The reproduction that card reference level is matched somebody with somebody.
（5）The present invention only mixture proportion need to be modified by result of the test and without consider vibratory sieve size, incline
The influence that the mechanical parameters such as angle, amplitude, vibration frequency are matched somebody with somebody to level, it is adaptable to different batch (-type) batching plants.
Other features and advantages of the present invention will be illustrated in the following description, also, the partial change from specification
Obtain it is obvious that or being understood by implementing the present invention.The purpose of the present invention and other advantages can be by the specifications, power write
Specifically noted part is realized and obtained in sharp claim and accompanying drawing.
Brief description of the drawings
Accompanying drawing is only used for showing the purpose of specific embodiment, and is not considered as limitation of the present invention, in whole accompanying drawing,
Identical reference symbol represents identical part.
Fig. 1 is the relation schematic diagram of different pitches consumption and void in mineral aggregate.
Fig. 2 is that the relation schematic diagram after regression fit is carried out to Fig. 1 by quadratic function.
Embodiment
Below in conjunction with the accompanying drawings come specifically describe the present invention instantiation, wherein, accompanying drawing constitute the application a part, and with
The example of the present invention is used for the principle for illustrating the present invention together.
A kind of bituminous concrete MAC-13 of high compact production method, be to nominal maximum aggregate size using this method
13.2mm grades of mineral aggregate is produced, and the physical and mechanical property and pavement performance of the bituminous concrete of production are tested,
It is determined that the mixture proportion formally produced suitable for different batch (-type) batching plants.
P1, according to the nominal maximum aggregate size that gathers materials of bituminous concrete for 13.2mm, the screen-aperture of selection is：13.2 mm、
9.5 mm、4.75mm、2.36mm、1.18mm、0.6mm、0.3mm、0.15mm、0.075mm；And by 13.2 mm, 9.5 mm,
4.75mm, 2.36mm and 0.075mm sieve aperture are considered as key sieve, according to key sieve coarse aggregate be divided into 16-13.2mm,
13.2-9.5mm, 9.5-4.75mm, 4.75-2.36mm, fine aggregate are divided into 2.36-0.075mm and miberal powder totally six grades of mineral aggregates.
P2, building stones are sieved, store thick each shelves, fine aggregate and determine the quality of fine aggregate and miberal powder in each sieve
Percent of pass.
P3, use《Highway engineering is gathered materials testing regulations》（JTG-E42）In standard test method determine each shelves coarse aggregate
Bulk specific gravity and apparent relative density, and fine aggregate and miberal powder apparent relative density, result of calculation is shown in Table 1.
The result of calculation of 1 each grade of mineral aggregate density of table.
。
P4, the mixed ratios of 5 grades of mineral aggregates with MAC-13-1 determined in the quality percent of pass of each key sieve according to reference level
Example M1 and target formate gradation composition MAC-13-2, result of calculation is shown in Table 2.
Table 2 MAC-13-2, M1 result of calculation.
。
P5, use《Highway engineering pitch and Asphalt Mixture Experiment code》（JTG E20-2011）In code test side
Method determines that 5 different pitches consumptions distinguish corresponding void in mineral aggregate, and result of calculation is shown in Table 3.
The result of calculation of 35 different pitches consumption correspondence void in mineral aggregate of table.
。
Rectangular coordinate system is set up according to table 3, the curve drawn out returned with quadratic function by Microsoft Excel
Fitting, obtains regression equation Y=AX2+BX+C and using the corresponding asphalt contents of minimum X=- B/ (2*A) as asphalt optimum content.
It is according to the quadratic function that the curve of the drafting of table 3 obtained after regression fit：Y=2.4286*X²-23.036*X+
67.429, minimum X=23.036/ (2*2.4286)=4.74, therefore MAC-13-2 asphalt optimum content 4.74%.
P6, use《Highway engineering pitch and Asphalt Mixture Experiment code》（JTG E20-2011）In code test side
Method determines bulk specific gravity, voidage, void in mineral aggregate, saturation degree, stability and flow valuve under the asphalt optimum content,
Result of calculation is shown in Table 4.
The result of calculation of each physical and mechanical property indexs under the asphalt optimum content of table 4.
。
Data in table 4 are analyzed, and the voidage of bituminous concrete belongs to high for 2.7% under asphalt optimum content
Closely knit bituminous concrete, and asphalt content is only 4.74%, illustrate the level be not reached by high asphalt content it is closely knit and
Be interacted by mineral aggregate form less space only need to a small amount of rubber cement filling can be closely knit, therefore use MAC-13-2
Match somebody with somebody as the reference level of actual production.
The screen-aperture for the vibratory sieve that P7, the batch (-type) mixing building of actual production are used for：16mm、11 mm、6 mm、3
Mm, according to the sieve aperture of vibratory sieve hot aggregate be divided into 16-11 mm, 11-6 mm, 6-3 mm, less than totally 5 grades of 3 mm and miberal powder
Mineral aggregate.
P8, use《Highway engineering is gathered materials testing regulations》（JTG-E42）In standard test method determine each shelves coarse aggregate
Bulk specific gravity and apparent relative density, and fine aggregate apparent relative density, result of calculation is shown in Table 5；
The result of calculation of the hot aggregate density of each shelves of table 5.
。
P9, the mixture proportion and production synthesis level for determining by linear Planning Tool in Microsoft Excel 4 grades of aggregates and miberal powder
Match somebody with somebody, meet the formate gradation composition and MAC-13-2 corresponding in the deviation of the quality percent of pass of key sieve and the condition less than 5%
Mixture proportion is S1, and corresponding production formate gradation composition is MAC-13-3, and result of calculation is shown in Table 6.
Table 6 MAC-13-3, S1 result of calculation.
。
P10, according to《Highway engineering pitch and Asphalt Mixture Experiment code》（JTG E20-2011）In code test
Method and 4.74 asphalt content determine the corresponding actual mineral aggregate gradation R1 of S1 in trial production, and result of calculation is shown in Table 7.
The R1 of table 7 result of calculation.
。
P10, P11, P12, the data according to table 7 and criterion A：It is logical with MAC-13-3 and the key sieve quality of setting
Cross the deviation requirement of rate：13.2mm, 9.5 mm, 4.75 mm≤± 3%, 2.36 mm≤± 2% and 0.075 mm≤± 1% pair R1
Decision analysis is carried out, R1 and MAC-13-3 passes through 13.2mm, 9.5 mm, 4.75 mm, 2.36 mm and 0.075 mm sieve apertures
Rate deviation is respectively：0.9th, 3.6,2.6,2.3,0.8, wherein the percent of pass deviation of 9.5 mm and 2.36 mm sieve apertures is unsatisfactory for A；
Pass through modification method B：16-11mm1 hundred is reduced in S1 to be unsatisfactory for the A quality percentage point of part 1 in single adjustment S1
Branch increases by 1 percentage point of below 3mm parts, revised mixture proportion S2 in S1 simultaneously：16-11 mm、11-6 mm、6-3
Mm, less than 3 mm and miberal powder is respectively 24,33,12,22,9.
P11, according to《Highway engineering pitch and Asphalt Mixture Experiment code》（JTG E20-2011）In code test
Method and 4.74 asphalt content determine the corresponding actual mineral aggregate gradation R2 of S2 in trial production, and result of calculation is shown in Table 8.
The R2 of table 8 result of calculation.
。
P10, P11, P12, the data according to table 8 and criterion A carry out decision analysis to R2, and R2 and MAC-13-3 exists
13.2mm, 9.5 mm, 4.75 mm, the percent of pass deviation of 2.36 mm and 0.075 mm sieve apertures are respectively：1.4、0.7、0.5、
0.2nd, 0.3, the percent of pass deviations of all key sieves is satisfied by A and matched somebody with somebody by mixing of formally producing of S2 and 4.74 asphalt content
Ratio.
Using《Highway engineering pitch and Asphalt Mixture Experiment code》（JTG E20-2011）In standard test method
Determine pitches of the S2 4.74（No. 70 A grades of bi tumenf orr oads）Physical and mechanical property indexs under consumption（Bulk volume is relatively close
Degree, voidage, void in mineral aggregate, saturation degree, stability, flow valuve）And pavement performance index（It is dynamic stability, residual stability, curved
Song experiment failure strain, infiltration coefficient）, result of calculation is shown in Table 9.
Physical and mechanical property indexs and pavement performance index of the S2 of table 9 under 4.74 asphalt content.
。
According to the data analysis of table 9, voidages of the S2 under 4.74 asphalt content is only 2.6%, belongs to high dense asphalt and mixes
Solidifying soil.
In summary, case study on implementation of the present invention proposes a kind of production method of the bituminous concrete of high compact, and to this
The bituminous concrete of the high compact of actual production is named as MAC-13.
It is described above, it is only the present invention preferably embodiment, but protection scope of the present invention is not limited thereto,
Any one skilled in the art the invention discloses technical scope in, the change or replacement that can be readily occurred in,
It should all be included within the scope of the present invention.
Claims (13)
1. a kind of voidage is less than 3% high dense asphalt concrete MAC production method, it is characterised in that the step of this method such as
Under：
P1, the nominal maximum aggregate size according to bituminous concrete, from multiple standard screens and determine crucial sieve, are pressed for coarse aggregate
Stepping is carried out according to standard screen sieve aperture, stepping is re-started according to key sieve sieve aperture for fine aggregate and miberal powder；
P2, building stones are sieved, store thick each shelves, fine aggregate and determine that fine aggregate and miberal powder pass through in the quality of each sieve
Rate；
P3, the bulk specific gravity and apparent relative density for determining each shelves coarse aggregate, and fine aggregate and miberal powder apparent phase
To density；
P4, according to reference level with MAC-13-1 determine that each shelves gather materials mixture proportion M1 and target formate gradation composition MAC-13-2；
P5, according to M1 MAC-13-2 is verified, by abscissa of bitumen content, void in mineral aggregate be ordinate, set up straight
Angular coordinate system, the void in mineral aggregate of different pitches content is plotted in rectangular coordinate system, and is determined equation parameter and drawn it
Function curve；
P6, MAC-13-2 optimum asphalt content is determined according to equation and its function curve and every thing under optimum asphalt content is examined
Manage mechanical performance index；
P7, according to batch (-type) batching plant Vibration Screen hole gauge lattice to hot aggregate carry out stepping, determine the hot aggregate of each shelves each sieve
The quality percent of pass of son；
P8, the bulk specific gravity and apparent relative density for determining each shelves coarse aggregate, and fine aggregate apparent relative density；
P9, determine according to MAC-13-2 the hot aggregate mixture proportion S1 of each shelves and production formate gradation composition MAC-13-3；
P10, the actual mineral aggregate gradation R1 produced as a trial according to S1, sampled, testing the bituminous concrete for determining trial production simultaneously sentence
It is fixed whether to need to be modified the actual mineral aggregate gradation, formally produced according to S1 if it need not correct；
P11, S1 is modified according to MAC-13-3 obtained after S2, repeat step P10；
P12, repeat step P11, until the actual grating and MAC-13-3 of the bituminous concrete of trial production are in the logical of key sieve
Rate deviation is crossed less than after setting value, it is determined that the S (n) after amendment is qualified, n-1 represent total times of revision；
P13, formally produced according to S (n), after the every physical and mechanical property indexs of bituminous concrete for examining production, by S
(n) as final production mixture proportion.
2. MAC-13 according to claim 1 production method, it is characterised in that in the step P1, bituminous concrete
Nominal maximum aggregate size is 13.2mm, and the screen-aperture of the standard screen used is： 13.2 mm、9.5 mm、4.75mm、2.36mm、
1.18mm、0.6mm、0.3mm、0.15mm、0.075mm。
3. MAC-13 production methods according to claim 2, it is characterised in that in the step P1,13.2 mm, 9.5
Mm, 4.75mm, 2.36mm and 0.075mm sieve aperture are considered as crucial sieve, coarse aggregate be divided into 16-13.2mm, 13.2-9.5mm,
9.5-4.75mm, 4.75-2.36mm, fine aggregate are divided into 2.36-0.075mm and miberal powder totally 6 grades of mineral aggregates.
4. MAC-13 according to claim 1 production method, it is characterised in that in the step P3, is used《Highway work
Journey is gathered materials testing regulations》（JTG-E42）In standard test method determine the bulk specific gravity of each shelves coarse aggregate and apparent
Relative density, and fine aggregate and miberal powder apparent relative density.
5. MAC-13 according to claim 3 production method, it is characterised in that in the step P4, according to reference level
The mixture proportion M1 and target formate gradation composition MAC- of 6 grades of mineral aggregates are determined in the quality percent of pass of each key sieve with MAC-13-1
13-2。
6. MAC-13 according to claim 3 production method, it is characterised in that in the step P5, is used《Highway work
Journey pitch and Asphalt Mixture Experiment code》（JTG E20-2011）In standard test method determine 5 different pitches consumptions
Corresponding void in mineral aggregate respectively, and by transverse axis of asphalt content, void in mineral aggregate be that the longitudinal axis is plotted in rectangular coordinate system.
7. MAC-13 according to claim 1 production method, it is characterised in that in the step P5, pass through EXCEL tables
The curve drawn out is carried out regression analysis by lattice with quadratic function, obtains regression equation Y=AX2+BX+C.
8. MAC-13 according to claim 1 production method, it is characterised in that in the step P6, to regression equation
Derivation simultaneously determines minimum X=- B/ (2*A), uses the corresponding asphalt content of the minimum for asphalt optimum content and uses《It is public
Road engineering pitch and Asphalt Mixture Experiment code》（JTG E20-2011）In standard test method determine that the optimal pitch is used
Bulk specific gravity, voidage, void in mineral aggregate, saturation degree, stability and flow valuve under amount.
9. MAC-13 according to claim 2 production method, it is characterised in that in the step P7, the vibration used
The screen-aperture of sieve is：Hot aggregate, is divided into 16-11 mm, 11-6 mm, 6-3 mm, small by 16mm, 11 mm, 6 mm, 3 mm
In 3 mm and miberal powder totally 5 grades of mineral aggregates.
10. MAC-13 according to claim 4 production method, it is characterised in that in the step P9, pass through EXCEL
Linear Planning Tool determines the mixture proportion and production formate gradation composition of 4 grades of aggregates and miberal powder in form, meet the formate gradation composition with
MAC-13-2 corresponding mixture proportions when the deviation of the quality percent of pass of key sieve is with the condition less than 5% are S1, corresponding
Production formate gradation composition is MAC-13-3.
11. MAC-13 according to claim 1 production method, it is characterised in that in the step P10, is used《Highway
Engineering pitch and Asphalt Mixture Experiment code》（JTG E20-2011）In standard test method determine trial production in S1 correspondence
Actual mineral aggregate gradation R1.
12. MAC-13 according to claim 5 production method, it is characterised in that in described step P10, P11, P12,
With MAC-13-3 and the deviation requirement of the key sieve quality percent of pass of setting：13.2mm, 9.5 mm, 4.75 mm≤± 3%,
2.36 mm≤± 2% and 0.075 mm≤± 1% are criterion A, and the quality hundred of part 1 that A is unsatisfactory in S1 is adjusted with single
Branch is modification method B.
13. MAC-13 according to claim 5 production method, it is characterised in that in described step P10, P11, P12,
Judge whether R1 needs amendment according to A, as that need to correct, adjusted according to B, repeat trial production, judgement and amendment until meeting A's
It is required that, be determined for compliance with require S (n) and check according to S (n) bituminous concretes formally produced every physical and mechanical property and
Pavement performance index, and MAC-13 is named as to the bituminous concrete of the high compact of the actual production.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710694643.4A CN107299575B (en) | 2017-08-15 | 2017-08-15 | A kind of production method of high dense asphalt concrete MAC of the voidage less than 3% |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710694643.4A CN107299575B (en) | 2017-08-15 | 2017-08-15 | A kind of production method of high dense asphalt concrete MAC of the voidage less than 3% |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107299575A true CN107299575A (en) | 2017-10-27 |
| CN107299575B CN107299575B (en) | 2019-08-23 |
Family
ID=60131948
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710694643.4A Active CN107299575B (en) | 2017-08-15 | 2017-08-15 | A kind of production method of high dense asphalt concrete MAC of the voidage less than 3% |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107299575B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111233376A (en) * | 2020-03-12 | 2020-06-05 | 中交路桥北方工程有限公司 | Asphalt concrete formula suitable for high-altitude cold regions |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR3134588B1 (en) * | 2022-04-13 | 2025-06-13 | Univ Gustave Eiffel | Process and unit for treating bituminous road waste, process and unit for manufacturing bituminous coating |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103526665A (en) * | 2013-09-30 | 2014-01-22 | 沧州市市政工程公司 | Accurate preparation method of emulsified asphalt cold recycled mixture |
| CN104164817A (en) * | 2014-08-18 | 2014-11-26 | 北京建筑大学 | Design method of hot recycled asphalt mixture with high RAP proportion |
| CN104499396A (en) * | 2014-11-25 | 2015-04-08 | 国家林业局昆明勘察设计院 | Determination of optimal blending ratio of regenerative old materials of bituminous pavement and method thereof |
| KR101556322B1 (en) * | 2014-06-02 | 2015-09-30 | 정한균 | Method for Manufacturing Fiber Additive Mixture for Asphalt Concrete Using Fiber and Binder |
| CN105084795A (en) * | 2015-08-21 | 2015-11-25 | 常州大学 | Method for dividing optimal intervals of quality grades for recycled coarse aggregate for concrete |
| CN107587399A (en) * | 2017-08-28 | 2018-01-16 | 厦门理工学院 | A kind of grading proportioning computational methods of asphalt mineral aggregate |
-
2017
- 2017-08-15 CN CN201710694643.4A patent/CN107299575B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103526665A (en) * | 2013-09-30 | 2014-01-22 | 沧州市市政工程公司 | Accurate preparation method of emulsified asphalt cold recycled mixture |
| KR101556322B1 (en) * | 2014-06-02 | 2015-09-30 | 정한균 | Method for Manufacturing Fiber Additive Mixture for Asphalt Concrete Using Fiber and Binder |
| CN104164817A (en) * | 2014-08-18 | 2014-11-26 | 北京建筑大学 | Design method of hot recycled asphalt mixture with high RAP proportion |
| CN104499396A (en) * | 2014-11-25 | 2015-04-08 | 国家林业局昆明勘察设计院 | Determination of optimal blending ratio of regenerative old materials of bituminous pavement and method thereof |
| CN105084795A (en) * | 2015-08-21 | 2015-11-25 | 常州大学 | Method for dividing optimal intervals of quality grades for recycled coarse aggregate for concrete |
| CN107587399A (en) * | 2017-08-28 | 2018-01-16 | 厦门理工学院 | A kind of grading proportioning computational methods of asphalt mineral aggregate |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111233376A (en) * | 2020-03-12 | 2020-06-05 | 中交路桥北方工程有限公司 | Asphalt concrete formula suitable for high-altitude cold regions |
| CN111233376B (en) * | 2020-03-12 | 2022-03-15 | 中交路桥北方工程有限公司 | Asphalt concrete formula suitable for high-altitude cold regions |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107299575B (en) | 2019-08-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Ghuzlan et al. | Rutting performance of asphalt mixtures with gradations designed using Bailey and conventional Superpave methods | |
| Zhang et al. | Performance evaluation of cement stabilized recycled mixture with recycled concrete aggregate and crushed brick | |
| CN106336173B (en) | A kind of high performance cement stabilized macadam and preparation method thereof | |
| Abreu et al. | Recycled asphalt mixtures produced with high percentage of different waste materials | |
| Franesqui et al. | Improvement of moisture damage resistance and permanent deformation performance of asphalt mixtures with marginal porous volcanic aggregates using crumb rubber modified bitumen | |
| CN102503257B (en) | Method for determining mineral aggregate gradation range based on gradation variability of raw materials | |
| CN106250642B (en) | A design method of mineral material gradation to improve the mechanical properties of asphalt mixture | |
| Mazumder et al. | Performance of overburnt distorted bricks as aggregates in pavement works | |
| CN106758692B (en) | Mixture gradation control method | |
| CN109460634B (en) | A design method for the proportion design of densely graded and skeleton-dense asphalt-stabilized crushed stone mixture based on Bailey's method | |
| Rahman et al. | Moisture susceptibility of high and low compaction dry process crumb rubber–modified asphalt mixtures | |
| CN103264445A (en) | Proportion determination method based on balance coefficient for asphalt mixture hot-aggregate bins | |
| CN105421182B (en) | A kind of building waste is used for asphalt proportion design method | |
| CN110255978B (en) | A method for determining the proportion of assembled asphalt mixture based on performance requirements | |
| CN107299575A (en) | A kind of voidage is less than 3% high dense asphalt concrete MAC production method | |
| CN108996932B (en) | Plant-mixed hot recycling grading design method for asphalt pavement reclaimed materials | |
| CN113831064A (en) | Asphalt mixture mix proportion design method based on penetration strength | |
| Cabrera et al. | Aggregate grading design for porous asphalt | |
| Anochie-Boateng et al. | Investigation of the use of waste crushed glass in the production of asphalt mixes | |
| CN115641931B (en) | Design method of building waste asphalt mixture mix proportion with high brick-concrete content | |
| Cox et al. | In-place recycling moisture-density relationships for high-traffic applications | |
| Sholichin et al. | Variations in the addition of polypropylene fiber, fly ash and immersion in asphalt mixtures on stability and flow | |
| CN117430382A (en) | An optimization method for rubber particle gradation in rubber cement stabilized gravel mixture | |
| CN112726331A (en) | Two-stage design method for target mix proportion of asphalt mixture | |
| CN106934135A (en) | A kind of big particle diameter pitch gradation design method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220706 Address after: 611900 1st floor, No. 307, South Street, Tianpeng Town, Pengzhou City, Chengdu, Sichuan Province Patentee after: Sichuan Zhongda Hongrui Construction Engineering Co.,Ltd. Address before: 610000 room 2, floor 3, unit 1, building 4, No. 366, Yuying Road, Xindu District, Chengdu, Sichuan Province Patentee before: Zhou Haijuan |