CN106124273A - Make simulation rolling forming machine and the test specimen manufacture method of bitumen mixture specimen - Google Patents
Make simulation rolling forming machine and the test specimen manufacture method of bitumen mixture specimen Download PDFInfo
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- CN106124273A CN106124273A CN201610642959.4A CN201610642959A CN106124273A CN 106124273 A CN106124273 A CN 106124273A CN 201610642959 A CN201610642959 A CN 201610642959A CN 106124273 A CN106124273 A CN 106124273A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/286—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q involving mechanical work, e.g. chopping, disintegrating, compacting, homogenising
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/36—Embedding or analogous mounting of samples
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Abstract
nullThe invention discloses a kind of simulation rolling forming machine making bitumen mixture specimen and test specimen manufacture method，Including wheel loading system and test specimen support means，Test specimen support means includes shaped platform、Die trial and two vulcanie blocks，Shaped platform upper surface keeps flat and is provided with die trial，Die trial is constituted a cuboid die trial chamber by a base plate and two side forms，Wheel loading system includes charger、Driving means、Rubber tyre、Tire support、Running rail and ventilating control valve，Charger includes load frame and three aluminium alloy spill wheels，Load frame is slidably mounted in running rail，Driving means drives that load frame is parallel on running rail slidably reciprocates，Tire support is arranged at above die trial，Tire support is provided with and contacts, with three aluminium alloy spill wheel one_to_one corresponding, three rubber tyres connected，Three described rubber tyres are connected with inflator pump by aerating pipe respectively.Present configuration is simple, reasonable in design and installs and uses easy and simple to handle.
Description
Technical field
The present invention relates to asphalt mixture material preparing technical field, particularly relate to a kind of bitumen mixture specimen that makes
Simulation rolling forming machine and test specimen manufacture method.
Background technology
In recent years, along with the fast development of China's economy, take as the Construction of Highway Traffic cause serving economic development
Obtained remarkable achievement.In highway in China web frame, owing to bituminous paving has ride comfort, good visual effect, makes an uproar
The advantages such as low voice, maintenance are convenient, each standard highway all uses bituminous paving as form of mainly mating formation.At asphalt
The molding of a large amount of laboratory test Asphalt Mixture test specimens be the basis of other all tests, simultaneous wheels is ground forming method and is also
One important forming method of bituminous mixture test piece forming.
But, we use the circular arc rolling wheel similar to steel cylinder road roller by existing rolling forming machine, can only
The compaction state of simulation steel roller, it is impossible to the compaction state of simulation pneumatic-tired rollers.
Summary of the invention
The weak point existed for prior art, it is an object of the invention to provide a kind of simple in construction, easy and simple to handle
And the good simulation rolling forming machine of using effect and test specimen manufacture method.
The purpose of the present invention is achieved through the following technical solutions:
A kind of simulation rolling forming machine making bitumen mixture specimen, including wheel loading system and test specimen support means, institute
State test specimen support means and include shaped platform, die trial and two vulcanie blocks, bottom described shaped platform, be provided with support, described
Shaped platform upper surface keeps flat and is provided with die trial, and described die trial is constituted three cuboid die trials by a base plate and six side forms
Chamber, three cuboid die trial chambeies of described die trial are divided into (or named) region A, region B, region along its length
C, described region A are provided with the vulcanie block that a size is coincide, and described region C is provided with the vulcanie that a size is coincide
Block；Described loading system of taking turns includes charger, driving means, rubber tyre, tire support, running rail and ventilating control valve,
Described charger includes load frame and three aluminium alloy spill wheels, and described load frame be arranged in parallel with running rail, load frame
Being slidably mounted in running rail, described driving means drives that load frame is parallel on running rail slidably reciprocates, described load
Being provided with three aluminium alloy spill wheels on the direction that frame is vertical with running rail side by side, described tire support is arranged at above die trial,
Being provided with on tire support and contact, with three aluminium alloy spill wheel one_to_one corresponding, three rubber tyres connected, described aluminium alloy is recessed
Shape wheel outward flange is provided with recessed groove, and the upper part tight clamping fit of described rubber tyre outer, circumferential edge closes in corresponding aluminum
In the recessed groove of gold spill wheel, three described rubber tyres are connected with inflator pump by aerating pipe respectively, at rubber tyre and
Aerating pipe between inflator pump is provided with ventilating control valve.
In order to this simulation rolling forming machine is better achieved, described rubber tyre includes the inner tube of a tyre and cover tire group from the inside to the outside
Becoming, described inflator pump and the inner tube of a tyre of rubber tyre connect by aerating pipe is airtight, the inner tube of a tyre of described inflator pump rubber tyre and
Aerating pipe between inflator pump is provided with air pressure aligner.
As preferably, described charger is provided with load aligner, and described load aligner is positioned on load frame, load
The load that rubber tyre is applied by aligner for detecting aluminium alloy spill to take turns.
As preferably, described shaped platform bottom surface is provided with lateral attitude adjusting means, and described lateral attitude adjusting means is used
Lateral attitude in regulation shaped platform.Described lateral attitude adjusting means includes track, position draw-in groove one, position draw-in groove two and
Position draw-in groove three；When regulating shaped platform to position draw-in groove for the moment, the rubber tyre just position being positioned at centre on tire support
Directly over the axis of die trial；The rubber being positioned at centre when regulating shaped platform to position draw-in groove two, on tire support
Tire is located just at directly over the left axis of die trial；When regulating shaped platform to position draw-in groove three, being positioned on tire support
Middle rubber tyre is located just at directly over the right axis of die trial.
This simulation rolling forming machine also includes that control chamber, described control chamber are provided with controller, display and parameter input
Unit, described air pressure aligner, load aligner, lateral attitude adjusting means, display and parameter input unit respectively with control
Device processed electrically connects；Described driving means is arranged at control chamber top.
As preferably, region A, region B, region C are vertically divided equally by the axis of described die trial, at the cuboid of die trial
The left side, axis in die trial chamber is provided with the left axis of pass-through zone A, region B, region C, in the cuboid die trial chamber of die trial
The right axis of pass-through zone A, region B, region C it is provided with on the right of axis；Described left axis is parallel to axis；Described right axis
It is parallel to axis.
Its method step is as follows:
A, rubber tyre is fixed on tire support, ventilating control valve is connected with air pressure aligner, by air pressure school
Quasi-device controls ventilating control valve and inflates to rubber tyre, and the rubber tyre air pressure after inflation is 690kPa；
B, by preheating die trial takes out from baking oven, outside die trial installation die trial framework；Region B middle berth one in die trial
Open the common paper cut out, make the bottom surface of die trial and side all be isolated by common paper；By equal for the scuppit used for asphalt mixture that mixes and stirs
Loaded the region B of die trial in order by edge to middle part along die trial, the asphalt in the middle part of the B of die trial region is slightly above district evenly
The asphalt of territory B surrounding；
C, take off the die trial framework outside die trial, tamped one time by edge to middle part with the small-sized compaction hammer of preheating, leveling
Become convex arch, two pieces of vulcanie blocks are respectively placed in region A and region C；
D, insertion thermometer, when asphalt reaches the compacting temperature of regulation, repave at asphalt upper surface
One common paper cutting out size；
E, the die trial filling asphalt is placed on shaped platform, uses lateral attitude adjusting means regulation molding to put down
Platform, at position draw-in groove one, puts down tire support gently above die trial, then puts down aluminium alloy spill wheel so that three aluminum close
The recessed groove of gold spill wheel and three rubber tyre one_to_one corresponding clampings, adjusting total load head by load aligner is 9kN；Start
Rolling forming machine, drives load frame to come and go in running rail by driving means and slides, and load frame drives three aluminium alloys recessed
Shape wheel back and forth movement, three aluminium alloy spills wheel rolls by doing to come and go on three rubber tyres asphalt in die trial
Motion, first completes three times to come and go to roll at position draw-in groove one；
F, off-load, lift aluminium alloy spill wheel and tire support, bitumen mixture specimen turned direction, uses horizontal position
Put adjusting means regulation shaped platform at position draw-in groove two；Start rolling forming machine, drive load frame to exist by driving means
Coming and going in running rail and slide, load frame drives three aluminium alloy spill wheel back and forth movements, and three aluminium alloy spills are taken turns by three
Individual rubber tyre do on the asphalt in die trial come and go roll motion, at position draw-in groove two and with step E phase
Complete under same load situation three times to come and go to roll；
G, off-load, lift aluminium alloy spill wheel and tire support, uses lateral attitude adjusting means regulation shaped platform extremely
At position draw-in groove three；Start rolling forming machine, drive load frame to come and go in running rail by driving means and slide, load frame
Driving three aluminium alloy spills wheel back and forth movements, three aluminium alloy spill wheels are mixed by three rubber tyres Colophonium in die trial
Close material on do come and go roll motion, complete to position draw-in groove three and under the load situation identical with step E three times past
Return and roll；
H, successively circulation step E, F, G come and go grinding operation, have a rest until making the asphalt in die trial roll to horse
Till your standard degree of compaction 100% and form bitumen mixture specimen；
After I, step H roll compaction moulding, throw off the common paper of bitumen mixture specimen upper surface, mix at Colophonium with chalk
Conjunction material test specimen upper surface is indicated and is rolled direction；
J, the die trial filling compacting bitumen mixture specimen is put and cooled down at room temperature, after at least 12h, by the drip in die trial
Blue or green compound test specimen takes out.
The present invention compared with the prior art, has the following advantages and beneficial effect:
(1) the rolling shaping machine structure of the simulation pneumatic-tired rollers making bitumen mixture specimen used is simple, set
Meter rationally and is installed and uses easy and simple to handle, and input cost is relatively low, installs compact, takes up room less.
(2) the rolling forming machine parameter adjustment letter of the simulation pneumatic-tired rollers making bitumen mixture specimen used
Just, the parameters such as rubber tyre air pressure, aluminium alloy spill wheel load can be adjusted, and be provided with control chamber, control simple,
Can accurately control rubber tyre air pressure, aluminium alloy spill wheel load；It addition, air pressure aligner and load aligner can be to rubber wheels
Air pressure and aluminium alloy spill wheel load carry and control effectively so that the preparation process of bitumen mixture specimen is easily controllable.
(3) the asphalt rolling forming machine of the simulation pneumatic-tired rollers making bitumen mixture specimen used,
Use three rubber tyres of three aluminium alloy spill wheels side by side and correspondence, the work of good simulated field pneumatic-tired rollers
Process, and the compacting of rubber tyre gap lap segment asphalt is achieved by the application of lateral attitude adjusting means,
The macroscopic properties of bitumen mixture specimen of preparation, micro-micro-structure characteristic and actual road surface closer to.
(4) die trial used extends the travel distance of rolling wheel, it is to avoid rolling wheel is at bitumen mixture specimen table
Turn back in face, with actual road roller working flow process more closely, preparation the macroscopic properties of bitumen mixture specimen, micro-microscopical structure
Characteristic and actual road surface closer to.
(5) using effect of the present invention is good and practical value high, good looking appearance, facilitates asphalt examination largely
The rubber tire rolling molding of part, and preparation process is easily controllable, has the advantages such as preparation efficiency is high, easy to operate, control is accurate,
The performance of prepared bitumen mixture specimen can be effectively ensured.
(6) preparation method step of the present invention is simple, reasonable in design and operation is simple, prepared asphalt
Test specimen is good, including 11 steps, the process parameters design of each step with the dependency of on-the-spot rubber tire compacting asphalt core sample
Rationally and realize convenient, control simple and safe preparation process, reliable.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention；
Fig. 2 is the structural representation of charger；
Fig. 3 is the structural representation of aluminium alloy spill wheel；
Fig. 4 is rubber tyre and tire support combined result schematic diagram；
Fig. 5 is the structural representation of die trial；
Fig. 6 is the control principle structured flowchart of the present invention.
Wherein, entitled corresponding to the reference in accompanying drawing:
1-air pressure aligner；2-lateral attitude adjusting means；3-load frame；4-aluminium alloy spill is taken turns；5-driving means；6-
Rubber tyre；7-tire support；8-shaped platform；9-die trial；10-ventilating control valve；11-load aligner；12-axis；
13-control chamber；14-controller；15-base plate；16-side form；17-region A；18-region B；19-region C；20-display；21-
Parameter input unit；The left axis of 22-；The right axis of 23-.
Detailed description of the invention
Below in conjunction with embodiment, the present invention is described in further detail:
Embodiment
As shown in Fig. 1～Fig. 6, a kind of simulation rolling forming machine making bitumen mixture specimen, including wheel loading system and
Test specimen support means, test specimen support means includes shaped platform 8, die trial 9 and two vulcanie blocks, sets bottom shaped platform 8
Have support, shaped platform 8 upper surface to keep flat and be provided with die trial 9, die trial 9 be made up of a base plate 15 and six side forms 16 three long
Cube shape die trial chamber, three cuboid die trial chamber the most named region A17, region B18, region C19 of die trial 9, region
A17 is provided with the vulcanie block that a size is coincide, and region C19 is provided with the vulcanie block that a size is coincide；Wheel loading system
Including charger, driving means 5, rubber tyre 6, tire support 7, running rail and ventilating control valve 10, charger bag
Including load frame 3 and three aluminium alloy spill wheels 4, load frame 3 be arranged in parallel with running rail, and load frame 3 is slidably mounted on traveling
In track, driving means 5 drives that load frame 3 is parallel on running rail to slidably reciprocate, the side that load frame 3 is vertical with running rail
Being provided with three aluminium alloy spill wheels 4 the most side by side, tire support 7 is arranged at above die trial 9, is provided with and three on tire support 7
Individual aluminium alloy spill takes turns three rubber tyres 6 that 4 one_to_one corresponding contacts connect, and aluminium alloy spill is taken turns 4 outward flanges and is provided with recessed groove,
The upper part tight clamping fit of rubber tyre 6 outer, circumferential edge in the recessed groove of corresponding aluminium alloy spill wheel 4, three
Rubber tyre 6 is connected with inflator pump by aerating pipe respectively, and the aerating pipe between rubber tyre 6 and inflator pump is provided with
Ventilating control valve 10.
Rubber tyre 6 includes the inner tube of a tyre and cover tire composition from the inside to the outside, and inflator pump passes through gas tube with the inner tube of a tyre of rubber tyre 6
The airtight connection in road, the aerating pipe between the inner tube of a tyre and the inflator pump of rubber tyre 6 is provided with air pressure aligner 1.
Charger is provided with load aligner 11, and load aligner 11 is positioned on load frame 3, and load aligner 11 is used for
The load that rubber tyre 6 is applied by detection aluminium alloy spill wheel 4.
Shaped platform 8 bottom surface is provided with lateral attitude adjusting means 2；Described lateral attitude adjusting means 2 includes track, position
Draw-in groove one, position draw-in groove two and position draw-in groove three；When regulating shaped platform 8 to position draw-in groove for the moment, being positioned on tire support 7
Middle rubber tyre 6 is located just at directly over the axis 12 of die trial 9；When regulating shaped platform 8 to position draw-in groove two, wheel
The rubber tyre 6 being positioned at centre on tire support 7 is located just at directly over the left axis 22 of die trial 9；When regulation shaped platform 8 to
During the draw-in groove three of position, the rubber tyre 6 being positioned at centre on tire support 7 is located just at directly over the right axis 23 of die trial 9.
This simulation rolling forming machine also includes that control chamber 13, control chamber 13 are provided with controller 14, display 20 and parameter
Input block 21, air pressure aligner 1, load aligner 11, lateral attitude adjusting means 2, display 20 and parameter input unit
21 electrically connect with controller 14 respectively；Driving means 5 is arranged at control chamber 13 top,
Region A17, region B18, region C19 are vertically divided equally by the axis 12 of die trial 9, left in the axis 12 of die trial 9
While be provided with the left axis 22 of pass-through zone A17, region B18, region C19, on the right of the axis 12 of die trial 9, it is provided with pass-through zone
A17, region B18, the right axis 23 of region C19；Left axis 22 is parallel to axis 12；Right axis 23 is parallel to axis 12.
A kind of bitumen mixture specimen manufacture method, including simulation rolling forming machine, its method step is as follows:
A, rubber tyre 6 is fixed on tire support 7, ventilating control valve 10 is connected with air pressure aligner 1, by gas
Pressure aligner 1 controls ventilating control valve 10 and inflates to rubber tyre 6, and rubber tyre 6 air pressure after inflation is 690kPa；
B, by preheating die trial 9 takes out from baking oven, outside die trial 9 installation die trial framework；Region B18 in die trial 9
One common paper cut out of middle berth, makes the bottom surface of die trial 9 and side all be isolated by common paper；Used for asphalt mixture by mix and stir
Scuppit equably along the region B18 that die trial 9 is loaded in order by edge to middle part, region B18 in the middle part of asphalt slightly
The asphalt of the region B18 surrounding being higher than；
C, take off the die trial framework outside die trial 9, tamped one time by edge to middle part with the small-sized compaction hammer of preheating, leveling
Become convex arch, two pieces of vulcanie blocks are respectively placed in region A17 and region C19；
D, insertion thermometer, when asphalt reaches the compacting temperature of regulation, repave at asphalt upper surface
One common paper cutting out size；
E, the die trial 9 filling asphalt is placed on shaped platform 8, uses lateral attitude adjusting means 2 to be adjusted to
At type platform 8 to position draw-in groove one, above die trial 9, put down tire support 7 gently, then put down aluminium alloy spill wheel 4 so that
The recessed groove of three aluminium alloy spill wheels 4 and three rubber tyre 6 one_to_one corresponding clampings, adjust total lotus by load aligner 11
Carry as 9kN；Starting rolling forming machine, drive load frame 3 to come and go in running rail by driving means 5 and slide, load frame 3 carries
Dynamic three aluminium alloy spills take turns 4 back and forth movements, and three aluminium alloy spill wheels 4 pass through three rubber tyres 6 Colophonium in die trial 9
Do on compound to come and go and roll motion, first complete three times to come and go at position draw-in groove one to roll；
F, off-load, lift aluminium alloy spill wheel 4 and tire support 7, bitumen mixture specimen turned direction, use laterally
Apparatus for adjusting position 2 regulates at shaped platform 8 to position draw-in groove two；Start rolling forming machine, drive load by driving means 5
Frame 3 comes and goes in running rail and slides, and load frame 3 drives three aluminium alloy spills to take turns 4 back and forth movements, three aluminium alloy spill wheels
4 pass through to do to come and go on three rubber tyres 6 asphalt in die trial 9 to roll motion, respectively at position draw-in groove two also
And complete three times to come and go under the load situation identical with step E to roll；
G, off-load, lift aluminium alloy spill wheel 4 and tire support 7, uses lateral attitude adjusting means 2 to regulate shaped platform
At 8 to position draw-in groove three；Start rolling forming machine, drive load frame 3 to come and go in running rail by driving means 5 and slide,
Load frame 3 drives three aluminium alloy spills to take turns 4 back and forth movements, and three aluminium alloy spill wheels 4 are existed by three rubber tyres 6 respectively
Do on asphalt in die trial 9 to come and go and roll motion, at position draw-in groove three and in the load situation identical with step E
Under complete three times come and go roll；
H, successively circulation step E, F, G come and go grinding operation, have a rest until making the asphalt in die trial 9 roll to horse
Till your standard degree of compaction 100% and form bitumen mixture specimen；
After I, step H roll compaction moulding, throw off the common paper of bitumen mixture specimen upper surface, mix at Colophonium with chalk
Conjunction material test specimen upper surface is indicated and is rolled direction；
J, the die trial 9 filling compacting bitumen mixture specimen is put and cooled down at room temperature, after at least 12h, by die trial 9
Bitumen mixture specimen takes out.
Above-mentioned embodiment is a preferred embodiment of the present invention, is not for limiting the enforcement of the present invention and power
Profit scope, all equivalence change and approximations made according to the content described in the present patent application scope of patent protection are replaced, all should
It is within the scope of the present invention.
Claims (7)
1. the simulation rolling forming machine making bitumen mixture specimen, it is characterised in that: include taking turns loading system and test specimen props up
Support arrangement, described test specimen support means includes shaped platform (8), die trial (9) and two vulcanie blocks, described shaped platform
(8) bottom is provided with support, and described shaped platform (8) upper surface keeps flat and is provided with die trial (9), and described die trial (9) is by a base plate
(15) and six side forms (16) constitute three cuboid die trial chambeies, and three cuboid die trial chambeies of described die trial (9) are along long
Degree direction be divided into region A(17), region B(18), region C(19), described region A(17) be provided with a vulcanie block,
Described region C(19) it is provided with a vulcanie block；Described loading system of taking turns includes charger, driving means (5), rubber tyre
(6), tire support (7), running rail and ventilating control valve (10), described charger includes that load frame (3) and three aluminum close
Gold spill wheel (4), described load frame (3) be arranged in parallel with running rail, and load frame (3) is slidably mounted in running rail, institute
Stating driving means (5) drives load frame (3) parallel on running rail to slidably reciprocate, and described load frame (3) is provided with three side by side
Individual aluminium alloy spill wheel (4), described tire support (7) is arranged at die trial (9) top, is provided with and three on tire support (7)
Three rubber tyres (6) that wheel (4) one_to_one corresponding contact of aluminium alloy spill connects, described aluminium alloy spill wheel (4) outward flange sets
Having recessed groove, the upper part tight clamping fit of described rubber tyre (6) outer, circumferential edge is in corresponding aluminium alloy spill wheel
(4), in recessed groove, three described rubber tyres (6) are connected with inflator pump by aerating pipe respectively, at rubber tyre (6) and
Aerating pipe between inflator pump is provided with ventilating control valve (10).
2. according to the simulation rolling forming machine making bitumen mixture specimen described in claim 1, it is characterised in that: described rubber
Rubber tire tire (6) includes the inner tube of a tyre and cover tire composition from the inside to the outside, and described inflator pump passes through aerating pipe with the inner tube of a tyre of rubber tyre (6)
Airtight connection, the aerating pipe between the inner tube of a tyre and the inflator pump of described inflator pump rubber tyre (6) is provided with air pressure aligner
(1).
3. according to the simulation rolling forming machine making bitumen mixture specimen described in claim 2, it is characterised in that add described in:
Carrying to put and be provided with load aligner (11), described load aligner (11) is positioned on load frame (3), and load aligner (11) is used
In the load that rubber tyre (6) is applied by detection aluminium alloy spill wheel (4).
4. according to the simulation rolling forming machine making bitumen mixture specimen described in claim 3, it is characterised in that: described one-tenth
Type platform (8) bottom surface is provided with lateral attitude adjusting means (2), and described lateral attitude adjusting means (2) is used for regulating die trial (9) position
Lateral attitude in shaped platform (8).
5. according to the simulation rolling forming machine making bitumen mixture specimen described in claim 4, it is characterised in that: also include
Control chamber (13), described control chamber (13) is provided with controller (14), display (20) and parameter input unit (21), described gas
Pressure aligner (1), load aligner (11), lateral attitude adjusting means (2), display (20) and parameter input unit (21) point
Do not electrically connect with controller (14)；Described driving means (5) is arranged at control chamber (13) top.
6. according to the simulation rolling forming machine making bitumen mixture specimen described in claim 5, it is characterised in that: described examination
The axis (12) of mould (9) is by region A(17), region B(18), region C(19) vertically divide equally, at the cuboid of die trial (9)
Axis (12) left side in die trial chamber is provided with pass-through zone A(17), region B(18), region C(19) left axis (22), examination
The cuboid die trial chamber of mould (9) axis (12) the right be provided with pass-through zone A(17), region B(18), region C(19)
Right axis (23)；Described left axis (22) is parallel to axis (12)；Described right axis (23) is parallel to axis (12).
7. a bitumen mixture specimen manufacture method, it is characterised in that: its method step is as follows:
A, rubber tyre (6) is fixed on tire support (7), ventilating control valve (10) is connected with air pressure aligner (1), logical
Crossing air pressure aligner (1) control ventilating control valve (10) to inflate to rubber tyre (6), rubber tyre (6) air pressure after inflation is
690kPa；
B, the die trial (9) of preheating is taken out from baking oven, at die trial (9) outside installation die trial framework；Region B in die trial (9)
(18) one common paper cut out of middle berth, makes the bottom surface of die trial (9) and side all be isolated by common paper；The Colophonium mixed and stirred is mixed
Close material scuppit and loaded the region B(18 of die trial (9) equably along die trial (9) by edge to middle part in order), die trial (9) region
B(18) asphalt at middle part is slightly above region B(18) asphalt of surrounding；
C, take off the die trial framework that die trial (9) is outside, tamped one time by edge to middle part with the small-sized compaction hammer of preheating, flatten into
Two pieces of vulcanie blocks are respectively placed in region A(17 by convex arch) and region C(19)；
D, insertion thermometer, when asphalt reaches the compacting temperature of regulation, repave one at asphalt upper surface
Cut out the common paper of size；
E, the die trial (9) filling asphalt is placed on shaped platform (8), uses lateral attitude adjusting means (2) regulation
Shaped platform (8), at position draw-in groove one, puts down tire support (7) in die trial (9) top gently, then puts down aluminium alloy spill
Wheel (4) so that the recessed groove of three aluminium alloy spills wheel (4) and the one_to_one corresponding clamping of three rubber tyres (6), by load school
It is 9kN that quasi-device (11) adjusts total load head；Start rolling forming machine, drive load frame (3) at running rail by driving means (5)
In come and go and slide, load frame (3) drives three aluminium alloy spills wheel (4) back and forth movements, and three aluminium alloy spills wheel (4) are by three
Individual rubber tyre (6) does on the asphalt in die trial (9) to come and go and rolls motion, first completes at position draw-in groove one three times
Come and go and roll；
F, off-load, lift aluminium alloy spill wheel (4) and tire support (7), bitumen mixture specimen turned direction, uses laterally
Apparatus for adjusting position (2) regulation shaped platform (8) is at position draw-in groove two；Start rolling forming machine, driven by driving means (5)
Live load carrier (3) comes and goes in running rail and slides, three aluminium alloy spills wheel (4) back and forth movements of load frame (3) drive, three
Aluminium alloy spill wheel (4) is passed through to do to come and go on three rubber tyres (6) asphalt in die trial (9) to roll motion,
Complete at position draw-in groove two and under the load situation identical with step E three times to come and go to roll；
G, off-load, lift aluminium alloy spill wheel (4) and tire support (7), uses lateral attitude adjusting means (2) regulation molding to put down
Platform (8) is at position draw-in groove three；Start rolling forming machine, by driving means (5) drive load frame (3) in running rail past
Returning slip, load frame (3) drives three aluminium alloy spill wheel (4) back and forth movements, and three aluminium alloy spills wheel (4) are by three rubbers
Rubber tire tire (6) do on the asphalt in die trial (9) come and go roll motion, to position draw-in groove three and with step
Complete under the load situation that E is identical three times to come and go to roll；
H, successively circulation step E, F, G come and go grinding operation, until making the asphalt in die trial (9) roll to Marshall
Till standard degree of compaction 100% and form bitumen mixture specimen；
After I, step H roll compaction moulding, throw off the common paper of bitumen mixture specimen upper surface, with chalk at asphalt
Test specimen upper surface is indicated and is rolled direction；
J, the die trial (9) filling compacting bitumen mixture specimen is put and cooled down at room temperature, after at least 12h, by die trial (9)
Bitumen mixture specimen takes out.
Priority Applications (1)
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110823659A (en) * | 2019-11-21 | 2020-02-21 | 云南省公路科学技术研究院 | Vibration wheel-grinding forming instrument for asphalt mixture track test piece and using method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110823659A (en) * | 2019-11-21 | 2020-02-21 | 云南省公路科学技术研究院 | Vibration wheel-grinding forming instrument for asphalt mixture track test piece and using method thereof |
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| CN106124273B (en) | 2018-11-09 |
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