CN115305788A - Cement stabilized solid waste aggregate base layer construction method - Google Patents
Cement stabilized solid waste aggregate base layer construction method Download PDFInfo
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- CN115305788A CN115305788A CN202210860459.3A CN202210860459A CN115305788A CN 115305788 A CN115305788 A CN 115305788A CN 202210860459 A CN202210860459 A CN 202210860459A CN 115305788 A CN115305788 A CN 115305788A
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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
- E01C21/00—Apparatus or processes for surface soil stabilisation for road building or like purposes, e.g. mixing local aggregate with binder
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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
- E01C3/00—Foundations for pavings
- E01C3/04—Foundations produced by soil stabilisation
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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
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
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Abstract
The invention relates to the technical field of construction of solid waste aggregate base courses, and discloses a construction method of a cement stabilized solid waste aggregate base course, which specifically comprises the following steps: cleaning accumulated water, floating soil and the like on an operation surface, and simultaneously ensuring the wetting of the operation surface by adopting measures such as water sprinkling and the like; step two, performing measurement lofting work before paving, calculating a loose paving coefficient, marking, and meanwhile building a support for controlling a lead; step three, mixing the mixture, the number of the bins of the mixing plant should be matched with the number of the stock preparation grades, the number of the loaders meets the requirement of the feeding of the bins, each bin of the mixing plant has sufficient aggregate and coordinated quantity, and the invention has the effective effects that: the steps and the flow are few, the construction period can be effectively shortened, and the construction cost is reduced; the steps described by the invention are utilized to carry out construction in sequence, the constructed solid waste aggregate base layer has good performance and stable cement performance, the structural strength is ensured, the requirement of road performance is effectively met, the service life is long, and the construction is simple.
Description
Technical Field
The invention relates to the technical field of construction of solid waste aggregate bases, in particular to a construction method of a cement-stabilized solid waste aggregate base.
Background
The rapid development of urban construction and traffic construction needs a large amount of road building materials, and the clay and sandstone natural road building materials are exploited excessively, so that surface vegetation is seriously damaged, and the ecological environment is influenced.
In the existing construction mode of the solid waste aggregate base course, the performance of cement is not stable enough, so that the quality of the solid waste aggregate base course is not good, and the requirement of road performance cannot be met; and the construction steps are various, so that the construction period is long and the construction cost is high.
Disclosure of Invention
The invention aims to provide a construction method of a cement stabilized solid waste aggregate base course, aiming at solving the problems that the quality of the solid waste aggregate base course is poor and the requirement of road performance cannot be met due to the unstable performance of cement in the conventional construction mode of the solid waste aggregate base course; and the construction steps are various, so that the problems of long construction period and high construction cost are caused.
The invention relates to a construction method of a cement stabilized solid waste aggregate base course, which comprises the following steps:
cleaning accumulated water, floating soil and the like on an operation surface, and ensuring the humidity of the operation surface by adopting measures such as water sprinkling and the like;
step two, before paving, performing measurement lofting work, calculating a loose paving coefficient, performing marking, and simultaneously building a support for controlling a lead;
step three, mixing the mixture, wherein the number of bins of the mixing plant is matched with the number of prepared material grades, the number of loaders meets the feeding requirement of the bins, each bin of the mixing plant is sufficient in aggregate, the number of the loaders is coordinated, and the continuity of the operation of the construction site of the mixture is ensured; after the mixing plant is shut down every day, cleaning the mixing plant, checking whether the working state of the mixing plant is normal or not, performing daily maintenance, and particularly checking whether a cement feed opening is blocked or not, whether cement is agglomerated or not and other common problems;
and step four, transporting the mixture, wherein a large-tonnage dump truck is adopted, the vehicle condition is good, the sound condition of the transport vehicle needs to be checked before the work is started every day, and the carriage is kept clean before the material is loaded. The number of transport vehicles is not too small, and at least smooth mixing, paving and discharging can be ensured;
step five, paving the mixture; for the full-width or half-width recovered pavement, a paver is adopted for operation; the construction adopts single-machine paving operation, and the elevation is generally controlled by adopting a method of running steel wires at two sides; for the narrow region of the pipe ditch backfill working face, a hooking machine is adopted to be matched with a manual paving mode;
step six, rolling the mixture; rolling is carried out in time after paving to prevent missing the optimal rolling time, so that the water content of the mixture after rolling is insufficient to influence the formation of the strength of the mixture;
step seven, joint treatment, wherein continuous operation is required when the mixture is spread; setting a transverse seam for the cement stable solid waste aggregate mixture if the interruption time is more than 2 hours; the cross section of the joint needs to be provided with a transverse seam when the joint is started the next day; the transverse seams are perpendicular to the lane lines of the road surface;
step seven, curing and traffic control, wherein after rolling is finished and the compaction degree is checked to be qualified, curing is started immediately; during the health preserving period, isolation measures are adopted to seal traffic and forbid the traffic.
Optionally, in the third step, before the mixture is mixed, the amount of the prepared materials in the mixing plant should be larger than the spreading amount of 5-7 d.
Optionally, in the third step, before the mixture is mixed, the water content of the aggregate at each position in the plant is checked, the construction mix proportion on the same day is calculated, and the sum of the external water and the water content is slightly higher than the optimal water content by about 1%. The actual cement dosage may be greater than about 0.5% of the cement dosage determined at the time of mix composition design.
Optionally, in the third step, after the mixture is mixed, random sampling is performed to check whether the mixture is matched with the designed mixing ratio, and after normal production, the stirring condition is checked every day, and meanwhile, the conditions of the water content and the mixing ratio are checked; when the weather is hot or the transport distance is long, the water content of the cement-stabilized solid waste aggregate mixture is properly increased when the cement-stabilized solid waste aggregate mixture is mixed, the solid waste aggregate is sensitive to the change of the water content in the cement stabilization, and the phenomenon of spring generation caused by poor control is avoided, so that the water content is carefully adjusted during construction.
Optionally, in the fourth step, in the transportation of the mixture, the whole transportation process is guaranteed to be covered tightly, and the spreading machine can be opened before discharging, so that the condition that the water of the mixture is lost in the transportation process is avoided.
Optionally, in the fourth step, the time from loading to transportation of the recycled cement stabilizing material to the site is not more than 2 hours, so that the time is not more than 2 hours, and the time of paving, rolling and forming is added, so that the initial setting time of the cement stabilizing material is exceeded, and the performance of the mixture is reduced and the mixture is discarded.
Optionally, in the fifth step, when the paver is used for operation, a support for the thickness control line is arranged at the edge of the cement stabilized macadam foundation, the loose paving thickness is calculated according to the loose paving coefficient, the height of the control line is determined, and the control line is hung.
Optionally, in the sixth step, a large steel wheel road roller is adopted for rolling, the rolling follows the principle of 'firstly light and then heavy, firstly slow and then fast, and from low to high', the rolling speed is controlled to be between 1.5 and 2.5km/h, and the phenomenon of turning around or emergency braking is strictly prohibited; when the whole-width recovery or half-width recovery working face is wide, rolling by using a large steel wheel road roller; for the road surface restoration and water stability construction of the pipe trench and the foundation pit backfill narrow area, a miniature steel wheel road roller is adopted for rolling, and the rolling degree is improved by increasing the rolling times; the rolling of stable material of well lid and other accessory facility week border water adopts the small-size ramming machine of manual cooperation to carry out the compaction.
Optionally, in the seventh step, after the compaction degree is checked to be qualified, curing is started immediately, and the curing mode is that the top surface of the cement stable solid waste aggregate base layer covered by the geotextile is manually covered, then the geotextile is sprinkled by a sprinkling truck for curing, and the base layer is always in a wet state in 7 d.
Optionally, in the fifth step, the elevation is controlled by a method of walking steel wires on two sides, the operation speed cannot be too fast or too slow, preferably 1 meter per minute, the paving speed is mainly controlled by the mixing capability and the transportation capability of a field machine, and two thirds of a spiral material distributor of the paver should be buried in the mixture; when the hook machine is matched with the manual paving mode, the hook machine is used for turning and stirring the mixture in the paving process, so that coarse and fine aggregates are prevented from being separated, and when local coarse aggregates are separated, the coarse aggregates are manually removed, and the uniform mixture is added for filling.
Compared with the prior art, the construction method of the cement stabilized solid waste aggregate base layer provided by the invention is simple and convenient.
Cleaning accumulated water, floating soil and the like on a working surface, ensuring the humidity of the working surface by adopting measures such as water spraying and the like, well performing measurement lofting before paving, calculating a loose paving coefficient, well marking, and well setting up a bracket for controlling a lead; mixing the mixture, transporting the mixture, paving the mixture, rolling the mixture, processing a joint and carrying out the eighth step, wherein the process flow of the eighth step is less, the construction period can be effectively shortened, and the construction cost is reduced;
the steps described by the invention are utilized to carry out construction in sequence, the constructed solid waste aggregate base layer has good performance and stable cement performance, the structural strength is ensured, the requirement of road performance is effectively met, the service life is long, and the construction is simple.
Drawings
FIG. 1 is a flow chart of the construction process of cement stabilized solid waste aggregate base course provided by the invention;
FIG. 2 is a graph of standard fit for EDTA titration provided by the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The following describes the implementation of the present invention in detail with reference to specific embodiments.
The same or similar reference numerals in the drawings of the present embodiment correspond to the same or similar components; in the description of the present invention, it should be understood that if there is an orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", etc. based on the orientation or positional relationship shown in the drawings, it is only for convenience of describing the present invention and simplifying the description, but it is not intended to indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and are not to be construed as limiting the present patent, and the specific meaning of the terms may be understood by those skilled in the art according to specific circumstances.
Referring to fig. 1-2, a preferred embodiment of the present invention is shown.
The construction method comprises the following steps:
cleaning accumulated water, floating soil and the like on an operation surface, and simultaneously ensuring the wetting of the operation surface by adopting measures such as water sprinkling and the like;
step two, performing measurement lofting work before paving, calculating a loose paving coefficient, marking, and meanwhile building a support for controlling a lead;
step three, mixing the mixture, wherein the number of bins of the mixing plant is matched with the number of prepared material grades, the number of loaders meets the feeding requirement of the bins, each bin of the mixing plant is sufficient in aggregate, the number of the loaders is coordinated, and the continuity of the operation of the construction site of the mixture is ensured; cleaning after the mixing plant is shut down every day, checking whether the working state of the mixing plant is normal or not, performing daily maintenance, and particularly checking whether a cement feed opening is blocked or not, whether cement caking exists or not and other common problems; before the mixture is mixed, the amount of the materials in a mixing plant is more than the spreading amount of 5-7 d; before the mixture is mixed, the water content of aggregates at each position in a factory is checked, the construction mix proportion on the same day is calculated, and the sum of the externally added water and the water content is slightly higher than the optimal water content by about 1%. The actual cement dosage may be greater than about 0.5% of the cement dosage determined at the time of the mix composition design; after the mixture is mixed, random sampling is carried out to check whether the mixture is matched with the designed mixing proportion, after normal production, the stirring condition is checked every day, and meanwhile, the conditions of the water content and the mixing proportion are checked; when the weather is hot or the transport distance is long, the water content of the cement-stabilized solid waste aggregate mixture is properly increased when the cement-stabilized solid waste aggregate mixture is mixed, the solid waste aggregate is sensitive to the change of the water content in the cement stabilization, and the phenomenon of spring generation caused by poor control is avoided, so that the water content is carefully adjusted during the construction period;
and step four, transporting the mixture, wherein a large-tonnage dump truck is adopted, the vehicle condition is good, the sound condition of the transport vehicle needs to be checked before the work is started every day, and the carriage is kept clean before the material is loaded. The number of transport vehicles is not too small, and at least smooth mixing, paving and discharging can be ensured; in the transportation of the mixture, the whole transportation process ensures tight coverage, the front unloading of the paver can be opened, the situation that the water of the mixture is lost in the transportation process is avoided, the time from loading to transportation to the site of the regenerated cement stabilizing material is not more than 2 hours, the time from more than 2 hours is avoided, and the time of paving, rolling and forming is added, so that the initial setting time of the cement stabilizing material is exceeded, the performance of the mixture is reduced, and the mixture is discarded;
step five, paving the mixture; for the full-width or half-width recovered pavement, a paver is adopted for operation; the construction adopts single machine paving operation, and generally adopts a method of running steel wires at two sides to control the elevation; for the narrow region of the pipe ditch backfill working face, a hooking machine is adopted to be matched with a manual paving mode; when a paver is adopted for operation, a thickness control line bracket is arranged at the edge of the cement stabilized macadam foundation, the loose paving thickness is calculated according to the loose paving coefficient, the height of a control line is determined, and the control line is hung; the elevation is controlled by adopting a method of running steel wires on two sides, the operation speed cannot be too fast or too slow, preferably 1 meter per minute, the paving speed is mainly controlled by the mixing capability and the transportation capability of a field machine, and two thirds of a spiral distributor of the paver is buried in a mixed material; when a hook machine is matched with a manual paving mode, the hook machine is used for turning and stirring the mixture in the paving process to prevent coarse and fine aggregates from being separated, and when local coarse aggregates are separated, the coarse aggregates are manually removed, and uniform mixture is added for filling;
step six, rolling the mixture; rolling is carried out in time after paving to prevent missing the optimal rolling time, so that the water content of the mixture after rolling is insufficient to influence the formation of the strength of the mixture; rolling by using a large steel wheel road roller, wherein the rolling follows the principle of 'light weight first and heavy weight first, slow speed first and fast speed first and low to high', the rolling speed is controlled between 1.5 and 2.5km/h, and the phenomenon of turning around or emergency braking is strictly prohibited; when the whole-width recovery or half-width recovery working face is wide, rolling by using a large steel wheel road roller; for the road surface restoration and water stability construction of the pipe trench and the foundation pit backfill narrow area, a miniature steel wheel road roller is adopted for rolling, and the rolling degree is improved by increasing the rolling times; the rolling of the stable materials of the water around the well lid and other accessory facilities is compacted by manually matching a small-sized ramming machine;
step seven, joint treatment, wherein continuous operation is required when the mixture is spread; setting a transverse seam for the cement stable solid waste aggregate mixture if the interruption time is more than 2 hours; the cross section of the joint needs to be provided with a transverse seam when the joint is started the next day; the transverse seams are arranged perpendicular to the lane lines of the road surface;
step eight, curing and traffic control, wherein after rolling is finished and the compaction degree is checked to be qualified, curing is started immediately; during the health preserving period, isolation measures are adopted to seal traffic, and vehicles are forbidden to pass; after the compaction degree is checked to be qualified, the curing is started immediately, the mode of curing is that geotextile is covered on the top surface of the cement-stabilized solid waste aggregate base layer manually, then watering is carried out by a watering cart for curing, and the inner base layer is always in a wet state within 7 d;
and (3) mixing quality control: in the production process, a material collecting metering system, a powder metering system and a water flow metering system are calibrated and debugged regularly, so that the gradation, the cement dosage and the water content of the produced mixture are ensured to be in accordance with the design of an indoor target mixing ratio, and the requirement of road performance is met;
controlling the cement dosage: the cement dosage is a key factor for ensuring the cement to stabilize the strength of the solid waste aggregate, but is also a key factor for causing cracks. Therefore, a specially-assigned person must be arranged to monitor the cement spraying and supplying conditions in the whole process, otherwise, the cement consumption is insufficient, and the local strength is low after the cement is paved; however, the early strength of the cement-stabilized solid waste aggregate cannot be improved by increasing the cement dosage, and cracks are easily caused by the excessively high cement dosage.
The cement dosage is detected by adopting an EDTA titration method. The EDTA titration method has the advantages of high speed, high efficiency, simple operation and the like, and is widely applied to the cement dosage detection on the aspects of highway pavements, railway subgrades and the like. Firstly, EDTA titration tests of different cement dosages are carried out indoors to obtain a standard curve, 10% ammonium chloride solution with the volume being two times of the sample mass (wet material mass), 10.0mL suspension and 50mL1.8% sodium hydroxide are added into a sample container during the tests, 1000g of medium-coarse-grained soil is taken from each sample, 300g of fine-grained soil can be weighed, and the test results are shown in Table 5.1. A standard curve was fitted according to the data of Table 5.1. Because the shed improvement broken material contains about 30 percent of concrete broken particles, and Ca < 2+ > can be liberated from concrete, the EDTA consumed by the blank sample is more than that consumed by the new stone material, and the average amount reaches 4.8ml:
in the actual production process, about 3000g of cement stabilized solid waste aggregate recovered from the pavement of the Longhua pipe network project is sampled from a conveyor belt, samples are divided according to a quartering method to reduce the influence of the nonuniformity of the samples on the result, then an EDTA titration test is carried out, the cement dosage is calculated based on the standard titration test data, and the result is shown in Table 5.2, so that the cement dosage is within an acceptable range. The water-stable mixing station is purchased during the construction of the great-benefit, dredging port and expressway, has short service time and better overall stability.
EDTA standard titration test data of cement-stabilized solid waste aggregate:
the test result of partial sampling inspection of the cement dosage in the production process of the cement stabilized solid waste aggregate mixture is as follows:
the above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. The construction method of the cement stabilized solid waste aggregate base course is characterized by comprising the following steps:
cleaning accumulated water, floating soil and the like on an operation surface, and simultaneously ensuring the wetting of the operation surface by adopting measures such as water sprinkling and the like;
step two, performing measurement lofting work before paving, calculating a loose paving coefficient, marking, and meanwhile building a support for controlling a lead;
step three, mixing the mixture, wherein the number of bins of the mixing plant is matched with the number of prepared material grades, the number of loaders meets the feeding requirement of the bins, each bin of the mixing plant is sufficient in aggregate, the number of the loaders is coordinated, and the continuity of the operation of the construction site of the mixture is ensured; after the mixing plant is shut down every day, cleaning the mixing plant, checking whether the working state of the mixing plant is normal or not, performing daily maintenance, and particularly checking whether a cement feed opening is blocked or not, whether cement is agglomerated or not and other common problems;
and step four, transporting the mixture, namely, adopting a large-tonnage dump truck, ensuring that the vehicle condition is good, and checking the sound condition of a transport vehicle before starting every day to keep a carriage clean before loading. The number of transport vehicles is not too small, and at least smooth mixing, paving and discharging can be ensured;
step five, paving the mixture; for the full-width or half-width recovered pavement, a paver is adopted for operation; the construction adopts single machine paving operation, and generally adopts a method of running steel wires at two sides to control the elevation; for a narrow region of a backfill working surface of the pipe trench, a hooking machine is matched with a manual paving mode;
step six, rolling the mixture; rolling is carried out in time after paving to prevent missing the optimal rolling time, so that the water content of the mixture after rolling is insufficient to influence the formation of the strength of the mixture;
step seven, joint treatment, wherein continuous operation is required when the mixture is spread; setting a transverse seam for the cement stable solid waste aggregate mixture if the interruption time is more than 2 hours; the cross section of the joint needs to be provided with a transverse seam when the joint is started the next day; the transverse seams are arranged perpendicular to the lane lines of the road surface;
step eight, curing and traffic control, wherein after rolling is finished and the compaction degree is checked to be qualified, curing is started immediately; during the health preserving period, isolation measures are adopted to seal traffic and forbid the traffic.
2. The method for constructing a cement stabilized solid waste aggregate foundation as claimed in claim 1, wherein in the third step, the amount of the prepared materials in the mixing plant is larger than the spreading amount of 5-7 d before the mixture is mixed.
3. The method for constructing the cement stabilized solid waste aggregate base layer as claimed in claim 1 or 2, wherein in the third step, before the mixture is mixed, the water content of the aggregate at each position in the plant is checked, the construction mix proportion on the day is calculated, and the sum of the external water and the water content is slightly higher than the optimal water content by about 1%. The actual cement dosage may be greater than about 0.5% of the cement dosage determined at the time of mix composition design.
4. The construction method of the cement stabilized solid waste aggregate base layer according to claim 3, characterized in that in the third step, after the mixture is mixed, random sampling is performed to check whether the mixture is matched with the designed mixing ratio, and after normal production, the stirring condition is checked every day, and the conditions of the water content and the mixing ratio are checked; when the weather is hot or the transport distance is long, the water content of the cement-stabilized solid waste aggregate mixture is properly increased when the cement-stabilized solid waste aggregate mixture is mixed, the solid waste aggregate is sensitive to the change of the water content in the cement stabilization process, and the phenomenon of spring generation caused by poor control is avoided, so that the water content is carefully adjusted during the construction.
5. The method for constructing a cement stabilized solid waste aggregate foundation as claimed in claim 1, wherein in the fourth step, the whole process of transportation ensures tight coverage during the transportation of the mixture, and the spreading machine can be opened when unloading the mixture in front, thereby avoiding the water loss of the mixture during the transportation.
6. The construction method of cement stabilized solid waste aggregate base course as claimed in claim 1, wherein in the fourth step, the time from loading to transporting the regenerated cement stabilizing material to the site is not more than 2h, and the time of paving, rolling and forming is added, so that the initial setting time of the cement stabilizing material is exceeded, and the performance of the mixture is reduced and the mixture is discarded.
7. The method for constructing a cement stabilized solid waste aggregate base course as claimed in any one of claim 1, wherein in the fifth step, when a paver is used for operation, a thickness control line support is arranged on the edge of the cement stabilized macadam base course, the loose thickness is calculated according to the loose coefficient, the height of the control line is determined, and the control line is hung.
8. The construction method of the cement-stabilized solid waste aggregate base layer as claimed in claim 1, wherein in the sixth step, a large steel wheel road roller is adopted for rolling, the rolling follows the principle of 'light weight first and heavy weight first, slow speed first and fast speed second and low to high speed', the rolling speed is controlled between 1.5 km/h and 2.5km/h, and the phenomenon of turning around or emergency braking is strictly prohibited; when the whole width recovery or half width recovery working face is wide, rolling by using a large steel wheel road roller; for the road surface restoration and water stability construction of the pipe trench and the foundation pit backfill narrow area, a miniature steel wheel road roller is adopted for rolling, and the rolling degree is improved by increasing the rolling times; the rolling of stable material of well lid and other accessory facility week border water adopts the small-size ramming machine of manual cooperation to carry out the compaction.
9. The method for constructing a cement stabilized solid waste aggregate base course according to claim 8, wherein in the eighth step, after passing the compaction degree check, the curing is started immediately, and the curing is performed by manually covering the top surface of the cement stabilized solid waste aggregate base course with the geotextile, then spraying water by a sprinkler, and the base course is always in a wet state for 7 days.
10. The method for constructing a cement stabilized solid waste aggregate foundation as claimed in claim 9, wherein in the fifth step, elevation control is performed by using a method of walking steel wires on both sides, the operation speed cannot be too fast or too slow, preferably 1 m/min, the paving speed is mainly controlled by the mixing capability and the transportation capability of a field machine, and two thirds of a spiral distributor of the paver is buried in the mixture; when the mode that adopts the hook machine to cooperate artifical the paving, the in-process of paving turns over the mixture with the hook machine earlier and mixes, prevents that coarse and fine aggregate from taking place the segregation, and when segregation to local coarse aggregate, the manual work is eradicateed to add even mixture and fill.
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20140011201A (en) * | 2012-07-18 | 2014-01-28 | 정문영 | The composite for soil pavement using the construction method for soil pavement |
| CN106522073A (en) * | 2016-11-18 | 2017-03-22 | 苏州中恒通路桥股份有限公司 | Construction method of high-added water-stable milled waste base |
| CN106894308A (en) * | 2017-02-16 | 2017-06-27 | 昆山市交通工程有限公司 | A kind of crack resistance construction of cement stable macadam base method |
| CN108978389A (en) * | 2018-06-13 | 2018-12-11 | 中国水利水电第九工程局有限公司 | A kind of construction method of bituminous pavement |
| CN112411305A (en) * | 2020-10-30 | 2021-02-26 | 湖南国晟环境科技有限公司 | Road solid waste mobile crushing and in-situ cold recycling construction method |
-
2022
- 2022-07-21 CN CN202210860459.3A patent/CN115305788A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20140011201A (en) * | 2012-07-18 | 2014-01-28 | 정문영 | The composite for soil pavement using the construction method for soil pavement |
| CN106522073A (en) * | 2016-11-18 | 2017-03-22 | 苏州中恒通路桥股份有限公司 | Construction method of high-added water-stable milled waste base |
| CN106894308A (en) * | 2017-02-16 | 2017-06-27 | 昆山市交通工程有限公司 | A kind of crack resistance construction of cement stable macadam base method |
| CN108978389A (en) * | 2018-06-13 | 2018-12-11 | 中国水利水电第九工程局有限公司 | A kind of construction method of bituminous pavement |
| CN112411305A (en) * | 2020-10-30 | 2021-02-26 | 湖南国晟环境科技有限公司 | Road solid waste mobile crushing and in-situ cold recycling construction method |
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