CN114717899A - Winter asphalt pavement hot-mixing warm-paving construction process - Google Patents
Winter asphalt pavement hot-mixing warm-paving construction process Download PDFInfo
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- CN114717899A CN114717899A CN202210139236.8A CN202210139236A CN114717899A CN 114717899 A CN114717899 A CN 114717899A CN 202210139236 A CN202210139236 A CN 202210139236A CN 114717899 A CN114717899 A CN 114717899A
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- 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
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- 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
- E01C19/48—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 laying-down the materials and consolidating them, or finishing the surface, e.g. slip forms therefor, forming kerbs or gutters in a continuous operation in situ
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- 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
- E01C19/48—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 laying-down the materials and consolidating them, or finishing the surface, e.g. slip forms therefor, forming kerbs or gutters in a continuous operation in situ
- E01C19/4866—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 laying-down the materials and consolidating them, or finishing the surface, e.g. slip forms therefor, forming kerbs or gutters in a continuous operation in situ with solely non-vibratory or non-percussive pressing or smoothing means for consolidating or finishing
-
- 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
- E01C19/48—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 laying-down the materials and consolidating them, or finishing the surface, e.g. slip forms therefor, forming kerbs or gutters in a continuous operation in situ
- E01C19/4866—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 laying-down the materials and consolidating them, or finishing the surface, e.g. slip forms therefor, forming kerbs or gutters in a continuous operation in situ with solely non-vibratory or non-percussive pressing or smoothing means for consolidating or finishing
- E01C19/4873—Apparatus designed for railless operation
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- 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
- E01C7/22—Binder incorporated in hot state, e.g. heated bitumen
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- 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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/30—Adapting or protecting infrastructure or their operation in transportation, e.g. on roads, waterways or railways
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Road Paving Machines (AREA)
Abstract
The application relates to the field of road construction, in particular to a winter asphalt pavement hot-mixing warm-paving construction process, which comprises the following steps: s1, construction preparation; s2, mixing and stirring materials, namely mixing the basalt aggregate, the SBS modified asphalt, the warm mixing agent and water, heating and stirring, and controlling the discharging temperature at 170-190 ℃; s3, transporting, wherein the temperature of the asphalt mixture is not lower than 170 ℃ after the asphalt mixture is transported to a construction site; s4, paving, namely heating a screed plate to over 90 ℃ before construction by using a traditional road paver; s5, rolling, namely performing primary rolling and secondary rolling by using a rubber tyre type road roller, starting rolling when a surface layer does not adhere to a wheel, wherein the primary rolling starting temperature is 130-140 ℃, the rolling is performed for 2-3 times, the secondary rolling starting temperature is 100-110 ℃, the rolling is performed for 3-4 times, and performing final rolling by using a steel wheel type road roller, the rolling starting temperature is 70-80 ℃, and the rolling is performed for 2-4 times; and S6, detecting. The application ensures the compaction effect the same as that of construction under the normal temperature environment, and further prolongs the construction time.
Description
Technical Field
The application relates to the field of road construction, in particular to a winter asphalt pavement hot-mixing warm-paving construction process.
Background
The conventional asphalt mixture mixing and construction are mainly hot-mixing hot-pressing and warm-mixing warm-pressing, wherein the hot-mixing hot-pressing and warm-mixing warm-pressing are used in a construction environment with the temperature higher than 10 ℃, and higher temperature is required during mixing, spreading and rolling; the latter mixes the warm-mixing agent when mixing the asphalt mixture, reduces the viscosity of the mixture, thus can mix, pave and roll the construction under the lower ambient temperature, and the road performance accords with the standard requirement, is mostly used in the areas with relatively high temperature in winter such as south China.
In winter asphalt concrete pavement construction in northern China, due to the fact that temperature of a construction site is low and wind power is high, temperature loss of asphalt mixture is accelerated, the situations that effective rolling time of the mixture is short, compaction degree is insufficient, construction quality cannot meet requirements and the like easily occur.
Disclosure of Invention
In order to ensure the quality of asphalt construction in a low-temperature environment, the application provides a winter asphalt pavement hot-mixing warm-paving construction process.
The application provides a winter bituminous pavement hot-mixing warm-paving construction process, which adopts the following technical scheme:
a winter asphalt pavement hot-mixing warm-paving construction process comprises the following steps:
s1, construction preparation, wherein the preparation of the related technology before the construction of the hot-mix asphalt mixture is completely the same as the construction of the normal-temperature asphalt mixture;
s2, mixing and stirring materials, namely mixing the basalt aggregate, the SBS modified asphalt, the warm-mixing agent and water, heating and stirring, wherein the basalt aggregate, the SBS modified asphalt, the warm-mixing agent and the SBS modified asphalt and the water are fed in sequence, and the discharging temperature is controlled at 170-190 ℃;
s3, transporting, and filling the mixture into a truck by three times in the same way: covering waterproof canvas on the mixture at the middle part and the two ends to ensure that the temperature of the asphalt mixture is not lower than 170 ℃ after the asphalt mixture is transported to a construction site;
s4, paving, namely heating a screed plate to be above 90 ℃ before construction by using a traditional road paver and adopting a steel wire guide elevation control mode, and brushing asphalt on the road surface at the joint to enhance bonding; according to the construction standard of the hot-mix asphalt mixture pavement in the construction process, transverse seams in the seams of the paved pavement are subjected to flat seam treatment, and longitudinal seams are subjected to inclined surface seam treatment;
s5, rolling, namely performing primary rolling and secondary rolling by using a rubber tyre type road roller, starting rolling when a surface layer does not adhere to a wheel, wherein the primary rolling starting temperature is 130-140 ℃, the rolling is performed for 2-3 times, the secondary rolling starting temperature is 100-110 ℃, the rolling is performed for 3-4 times, and the final rolling is performed by using a steel wheel road roller, the rolling starting temperature is 70-80 ℃, and the rolling is performed for 2-4 times;
and S6, detecting, namely after each working section is finished, carrying out related detection on the compactness, the thickness, the flatness, the water seepage coefficient and the Marshall stability, wherein the index system completely meets the requirements of the hot-mix asphalt mixture pavement.
Preferably, in the step S4, the paving speed of the road paver is controlled to be 2-3 m/min, the paving temperature of the asphalt mixture is controlled to be not lower than 155 ℃, the elevation angle of the screed is adjusted, and a high-frequency low-amplitude rammer is adopted.
Preferably, the road paver includes the paver body and sets up in the portion of receiving of paver body, the portion of receiving include the base, along base width direction symmetry set up in two sets of striker assemblies of base, striker assembly including articulate in the bottom plate of base, articulate in the bottom plate is kept away from base one side just is the board that turns over of vertical setting, is used for the jacking to turn over the board and make and turn over the actuating mechanism that the board kept vertical state.
Preferably, the bottom of the turning plate is fixedly connected with an extending plate which is horizontally arranged and extends towards the direction of the material retaining assembly far away from the other side, the driving mechanism comprises a mounting groove arranged on the top surface of the base, a first driving screw rod and a second driving screw rod which are respectively and horizontally rotatably supported in the mounting groove and are arranged in parallel, a first connecting block and a second connecting block which are respectively in threaded connection with the first driving screw rod and the second driving screw rod, a first connecting ring which is rotatably connected with the first connecting block and is coaxial with the first driving screw rod, a second connecting ring which is rotatably connected with the second connecting block and is coaxial with the second driving screw rod, a first driving rod and a second driving rod of which the end parts are respectively hinged to the outer walls of the first connecting ring and the second connecting ring, a third connecting block and a fourth connecting block which are respectively and fixedly connected with the bottom surface of the extending plate, a first connecting rod and a second connecting rod which are respectively in threaded connection with the outer walls of the first connecting rod and the second connecting rod, and a third connecting rod and a fourth connecting rod which are respectively fixedly connected with the bottom surface of the extending plate, Rotate respectively and connect in the third go-between and the fourth go-between of third connecting block and fourth connecting block, the axis of rotation of third go-between and the axis of rotation of fourth go-between all are the level setting, first actuating lever and second actuating lever other end articulate respectively in third go-between and fourth go-between outer wall, first actuating lever and second actuating lever keep isometric and the structure that is parallel to each other all the time on road paver orthographic projection view.
Preferably, a synchronous driving piece is arranged between the first driving screw rod and the second driving screw rod.
Preferably, the synchronous driving element comprises a driving gear coaxially and fixedly connected to the first driving screw rod, a driven gear coaxially and fixedly connected to the second driving screw rod and meshed with the driving gear, and a driving motor fixedly installed on the base and connected to the end of the first driving screw rod, and the first driving screw rod and the second driving screw rod have the same spiral direction.
Preferably, the bottom plate and the turning plate are provided with striker plates on the sides far away from the discharge end of the road paver.
In summary, the present application includes at least one of the following beneficial technical effects:
1. by the hot-mixing warm-paving construction process, the construction and rolling time section is effectively prolonged, on one hand, the temperature of key links such as mixing, discharging, paving and the like is increased on the basis of not influencing the aging performance of the asphalt mixture, on the other hand, the compaction characteristic of the asphalt mixture is improved by adopting a warm-mixing agent adding method, the same compaction effect as that of construction in a normal-temperature environment is achieved, and the construction time is further prolonged;
2. when the road paver receives materials, the asphalt mixture is blocked by the turning plates in the material blocking assemblies on two sides, when the asphalt mixture on the bottom plate needs to be fed into the material conveying device, the driving motor is started to enable the first driving screw rod and the second driving screw rod to synchronously and reversely rotate through the matching of the driving gear and the driven gear, so that a first connecting block and a second connecting block which are respectively in threaded connection with the first driving screw rod and the second driving screw rod are close to each other, the end parts of the first driving rod and the second driving rod are further close to each other, the turning plates are jacked up and drive the bottom plate to rotate under the matching of the extension plates, under the matching of the bottom plates in the two material blocking assemblies, the asphalt mixture in the material receiving part is concentrated towards the middle part and is conveyed towards the discharge end of the road paver through the conveying device, and because the first driving rod and the second driving rod are equal in length and are parallel to each other on an orthographic projection view of the road paver, the feeding vehicle is matched with the base and the extension plate to form a parallelogram structure, the extension plate is always kept in a horizontal state in the process that the first driving rod and the second driving rod lift the extension plate, namely turning plates in the material blocking assemblies on two sides are kept in a vertical state, so that the top of the material receiving part is opened, the feeding vehicle can ensure the continuity of feeding, the operation requirements on the feeding vehicle are reduced on one hand, and the feeding state of the road paver is kept stable on the other hand;
3. through setting up the striker plate, reduce the condition that the material portion of road surface paver receives the in-process bituminous mixture of material spills.
Drawings
Fig. 1 is a schematic view of the overall structure of the present embodiment.
Fig. 2 is a schematic view of a partial structure of the base with the bottom plate removed in this embodiment.
Fig. 3 is a schematic view of the entire structure of the drive mechanism in this embodiment.
Fig. 4 is a partially enlarged view of a portion a in fig. 3.
Fig. 5 is a front projection view of the driving mechanism in the present embodiment.
Description of reference numerals: 1. a road paver; 2. a paver body; 3. a receiving part; 4. a base; 5. the material blocking component; 6. a base plate; 7. turning over a plate; 8. a drive mechanism; 9. a striker plate; 10. an extension plate; 11. mounting grooves; 12. a first drive screw; 13. a second drive screw; 14. a first connection block; 15. a second connecting block; 16. a first connecting ring; 17. a second connection ring; 18. a first drive lever; 19. a second drive lever; 20. a third connecting block; 21. a fourth connecting block; 22. a third connecting ring; 23. a fourth connecting ring; 24. a positioning ring groove; 25. a synchronous drive; 26. a driving gear; 27. a driven gear; 28. the motor is driven.
Detailed Description
The present application is described in further detail below with reference to figures 1-5.
The embodiment of the application discloses winter bituminous pavement hot-mixing warm-paving construction technology, which comprises the following steps:
s1, construction preparation, wherein the preparation of the related technology before the construction of the hot-mix asphalt mixture is completely the same as the construction of the normal-temperature asphalt mixture;
s2, mixing and stirring materials, namely mixing the basalt aggregate, the SBS modified asphalt, the warm-mixing agent and water, heating and stirring, wherein the basalt aggregate, the SBS modified asphalt, the warm-mixing agent and the SBS modified asphalt and the water are fed in sequence, and the discharging temperature is controlled at 170-190 ℃;
s3, transporting, and filling the mixture into a truck by three times in the same way: covering waterproof canvas on the mixture at the middle part and the two ends to ensure that the temperature of the asphalt mixture is not lower than 170 ℃ after the asphalt mixture is transported to a construction site;
s4, paving, namely, using a traditional road paver 1, adopting a steel wire to guide and control elevation, heating a screed plate to be above 90 ℃ before construction, brushing asphalt on the road surface at joints to enhance bonding, adjusting the elevation angle of the screed plate, and adopting high frequency and low amplitude for a rammer; according to the construction standard of the hot-mix asphalt mixture pavement in the construction process, transverse seams in the seams of the paved pavement are subjected to flat seam treatment, and longitudinal seams are subjected to inclined surface seam treatment; the paving speed of the pavement paver 1 is controlled to be 2-3 m/min, and meanwhile, the paving temperature of the asphalt mixture is controlled not to be lower than 155 ℃;
s5, rolling, namely performing primary rolling and secondary rolling by using a rubber tyre type road roller, starting rolling when a surface layer does not adhere to a wheel, wherein the primary rolling starting temperature is 130-140 ℃, the rolling is performed for 2-3 times, the secondary rolling starting temperature is 100-110 ℃, the rolling is performed for 3-4 times, and the final rolling is performed by using a steel wheel road roller, the rolling starting temperature is 70-80 ℃, and the rolling is performed for 2-4 times;
and S6, detecting, namely after each working section is finished, carrying out related detection on the compactness, the thickness, the flatness, the water seepage coefficient and the Marshall stability, wherein the index system completely meets the requirements of the hot-mix asphalt mixture pavement.
Through the process steps, the time section capable of being constructed and rolled is effectively prolonged, on one hand, the temperature of key links such as mixing, discharging, paving and the like is increased on the basis of not influencing the aging performance of the asphalt mixture, on the other hand, the compactability of the asphalt mixture is improved by adopting a warm mixing agent adding method, the compaction effect same as that of construction under a normal temperature environment is achieved, and the construction time is further prolonged.
Referring to fig. 1-5, for the continuity of the feed when guaranteeing that paver 1 paves, paver 1 includes paver body 2 and sets up in the portion of receiving 3 of paver body 2, it includes base 4 to receive portion 3, set up in two sets of fender subassembly 5 of base 4 along 4 width direction symmetries of base, keep off subassembly 5 including articulating in base 4's bottom plate 6, articulate and keep away from base 4 one side and be the board 7 that turns over of vertical setting in bottom plate 6, be used for the jacking to turn over board 7 and make and turn over actuating mechanism 8 that board 7 kept vertical state, bottom plate 6 all is equipped with striker plate 9 with the one side that board 7 kept away from paver 1 discharge end of road, turn over board 7 bottom fixedly connected with and be the level setting and keep away from the extension board 10 that opposite side fender subassembly 5 orientation extended towards.
The driving mechanism 8 comprises a mounting groove 11 arranged on the top surface of the base 4, a first driving screw rod 12 and a second driving screw rod 13 which are rotatably supported in the mounting groove 11 along the horizontal direction and are arranged in parallel, a first connecting block 14 and a second connecting block 15 which are respectively in threaded connection with the first driving screw rod 12 and the second driving screw rod 13, a first connecting ring 16 which is rotatably connected with the first connecting block 14 and is coaxial with the first driving screw rod 12, a second connecting ring 17 which is rotatably connected with the second connecting block 15 and is coaxial with the second driving screw rod 13, a first driving rod 18 and a second driving rod 19 of which the end parts are respectively hinged on the outer walls of the first connecting ring 16 and the second connecting ring 17, a third connecting block 20 and a fourth connecting block 21 which are respectively fixedly connected with the bottom surface of the extending plate 10, and a third connecting ring 22 and a fourth connecting ring 23 which are respectively rotatably connected with the third connecting block 20 and the fourth connecting block 21, the other ends of the first driving rod 18 and the second driving rod 19 are respectively hinged to the outer walls of a third connecting ring 22 and a fourth connecting ring 23, positioning ring grooves 24 which extend annularly are formed in the first connecting block 14, the second connecting block 15, the third connecting block 20 and the fourth connecting block 21, and the first connecting ring 16, the second connecting ring 17, the third connecting ring 22 and the fourth connecting ring 23 are symmetrically and rotatably connected into the positioning ring grooves 24.
The spiral directions of the first driving screw rod 12 and the second driving screw rod 13 are the same, the rotation axis of the third connecting ring 22 and the rotation axis of the fourth connecting ring 23 are both horizontally arranged, and the first driving rod 18 and the second driving rod 19 always keep a structure which is equal in length and parallel to each other on the orthographic projection view of the road paver 1, namely a parallelogram connecting rod structure, so that the extension plate 10 can keep a horizontal state in the process of overturning around the rotation axis between the bottom plate 6 and the base 4.
In order to control the first driving screw 12 and the second driving screw 13 to rotate reversely synchronously, a synchronous driving member 25 is arranged between the first driving screw 12 and the second driving screw 13, and the synchronous driving member 25 includes a driving gear 26 coaxially and fixedly connected to the first driving screw 12, a driven gear 27 coaxially and fixedly connected to the second driving screw 13 and meshed with the driving gear 26, and a driving motor 28 fixedly mounted on the base 4 and connected to the end of the first driving screw 12.
The working principle of the road paver 1 in the embodiment of the application is as follows:
when the asphalt mixture on the bottom plate 6 needs to be fed into the material conveying device, the driving motor 28 is started, the driving motor 28 is matched with the driving gear 26 and the driven gear 27, the first driving screw rod 12 and the second driving screw rod 13 synchronously and reversely rotate, so that the first connecting block 14 and the second connecting block 15 which are respectively in threaded connection with the first driving screw rod 12 and the second driving screw rod 13 are close to each other, the end parts of the first driving rod 18 and the second driving rod 19 are further close to each other, the turning plate 7 is lifted and drives the bottom plate 6 to rotate under the matching of the extending plate 10, under the matching of the bottom plates 6 in the two groups of material blocking assemblies 5, the asphalt mixture in the material receiving part 3 is concentrated towards the middle part and is conveyed towards the discharge end of the pavement spreader 1 through the conveying device, and because the first driving rod 18 and the second driving rod 19 are equal in length and parallel to each other on the orthographic projection view of the pavement spreader 1, cooperate between forming parallelogram structure promptly and the extension board 10 with base 4, at the in-process of first actuating lever 18 and second actuating lever 19 to extension board 10 jacking, extension board 10 remains the horizontally state throughout, and the board 7 that turns over in the both sides dam subassembly 5 keeps vertical state promptly, makes and receives 3 tops of material portion to open, and the continuity of feed can be guaranteed to the feed car, has reduced the operation requirement to the feed car on the one hand, and on the other hand makes the feeding state of road surface paver 1 remain stable.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (7)
1. A winter asphalt pavement hot-mixing warm-paving construction process is characterized by comprising the following steps:
s1, construction preparation, wherein the preparation of the related technology before the construction of the hot-mix asphalt mixture is completely the same as the construction of the normal-temperature asphalt mixture;
s2, mixing and stirring materials, namely mixing the basalt aggregate, the SBS modified asphalt, the warm-mixing agent and water, heating and stirring, wherein the basalt aggregate, the SBS modified asphalt, the warm-mixing agent and the SBS modified asphalt and the water are fed in sequence, and the discharging temperature is controlled at 170-190 ℃;
s3, transporting, and filling the mixture into a truck by three times in the same way: covering waterproof canvas on the mixture at the middle part and the two ends to ensure that the temperature of the asphalt mixture is not lower than 170 ℃ after the asphalt mixture is transported to a construction site;
s4, paving, namely heating a screed plate to be above 90 ℃ before construction by using a traditional road paver (1) and adopting a steel wire guide elevation control mode, and brushing asphalt on the road surface at joints to enhance bonding; according to the construction standard of the hot-mix asphalt mixture pavement in the construction process, transverse seams in the seams of the paved pavement are subjected to flat seam treatment, and longitudinal seams are subjected to inclined surface seam treatment;
s5, rolling, namely performing primary rolling and secondary rolling by using a rubber tyre type road roller, starting rolling when a surface layer does not adhere to a wheel, wherein the primary rolling starting temperature is 130-140 ℃, the rolling is performed for 2-3 times, the secondary rolling starting temperature is 100-110 ℃, the rolling is performed for 3-4 times, and the final rolling is performed by using a steel wheel road roller, the rolling starting temperature is 70-80 ℃, and the rolling is performed for 2-4 times;
and S6, detecting, namely after each working section is finished, carrying out related detection on the compactness, the thickness, the flatness, the water seepage coefficient and the Marshall stability, wherein the index system completely meets the requirements of the hot-mix asphalt mixture pavement.
2. The winter asphalt pavement hot-mix warm-paving construction process as claimed in claim 1, characterized in that: in the step S4, the paving speed of the pavement paver (1) is controlled to be 2-3 m/min, the paving temperature of the asphalt mixture is controlled to be not lower than 155 ℃, the elevation angle of a screed is adjusted, and a high-frequency low-amplitude rammer is adopted.
3. The winter asphalt pavement hot-mix warm-paving construction process as claimed in claim 1, characterized in that: road surface paver (1) includes paver body (2) and sets up in the portion of receiving (3) of paver body (2), receive material portion (3) including base (4), along base (4) width direction symmetry set up in two sets of fender subassembly (5) of base (4), keep off material subassembly (5) including articulate in bottom plate (6) of base (4), articulate in bottom plate (6) are kept away from base (4) one side just is the board (7) that turn over of vertical setting, is used for the jacking to turn over board (7) and make and turn over actuating mechanism (8) that board (7) kept vertical state.
4. The winter asphalt pavement hot-mix warm-paving construction process as claimed in claim 3, characterized in that: turn over board (7) bottom fixedly connected with and be the level setting and keep away from extension board (10) that opposite side dam subassembly (5) direction extended towards, actuating mechanism (8) including set up in mounting groove (11) of base (4) top surface, respectively along the horizontal direction rotate support in mounting groove (11) and be parallel arrangement's first drive lead screw (12) and second drive lead screw (13), respectively threaded connection in first connecting block (14) and second connecting block (15) of first drive lead screw (12) and second drive lead screw (13), rotate connect in first connecting block (14) and with first drive lead screw (12) coaxial first connecting ring (16), rotate connect in second connecting block (15) and with second drive lead screw (13) coaxial second connecting ring (17), tip articulate respectively in first connecting ring (18) and second drive of outer wall of first connecting ring (16) and second connecting ring (17) drive Move pole (19), respectively fixed connection in third connecting block (20) and fourth connecting block (21), the rotation respectively of extending board (10) bottom surface are connected in third connecting ring (22) and fourth connecting ring (23) of third connecting block (20) and fourth connecting block (21), the axis of rotation of third connecting ring (22) and the axis of rotation of fourth connecting ring (23) all are the level setting, first actuating lever (18) and second actuating lever (19) other end articulate respectively in third connecting ring (22) and fourth connecting ring (23) outer wall, first actuating lever (18) and second actuating lever (19) keep isometric and the structure that is parallel to each other all the time on road paver (1) orthographic projection view.
5. The winter asphalt pavement hot-mix warm-paving construction process as claimed in claim 4, characterized in that: a synchronous driving piece (25) is arranged between the first driving screw rod (12) and the second driving screw rod (13).
6. The winter asphalt pavement hot-mix warm-paving construction process as claimed in claim 5, characterized in that: the synchronous driving piece (25) comprises a driving gear (26) which is coaxially and fixedly connected with the first driving screw rod (12), a driven gear (27) which is coaxially and fixedly connected with the second driving screw rod (13) and is meshed with the driving gear (26), and a driving motor (28) which is fixedly arranged on the base (4) and is connected to the end part of the first driving screw rod (12), wherein the spiral directions of the first driving screw rod (12) and the second driving screw rod (13) are the same.
7. The winter asphalt pavement hot-mix warm-paving construction process as claimed in claim 1, characterized in that: one sides of the bottom plate (6) and the turning plate (7) far away from the discharge end of the road paver (1) are respectively provided with a material baffle plate (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210139236.8A CN114717899A (en) | 2022-02-15 | 2022-02-15 | Winter asphalt pavement hot-mixing warm-paving construction process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210139236.8A CN114717899A (en) | 2022-02-15 | 2022-02-15 | Winter asphalt pavement hot-mixing warm-paving construction process |
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| Publication Number | Publication Date |
|---|---|
| CN114717899A true CN114717899A (en) | 2022-07-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210139236.8A Pending CN114717899A (en) | 2022-02-15 | 2022-02-15 | Winter asphalt pavement hot-mixing warm-paving construction process |
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| CN (1) | CN114717899A (en) |
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