CN110835873A - Manufacturing process of high-bearing long-service-life water-stable layer - Google Patents
Manufacturing process of high-bearing long-service-life water-stable layer Download PDFInfo
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- CN110835873A CN110835873A CN201911037086.4A CN201911037086A CN110835873A CN 110835873 A CN110835873 A CN 110835873A CN 201911037086 A CN201911037086 A CN 201911037086A CN 110835873 A CN110835873 A CN 110835873A
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- water
- stable layer
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- bearing
- life water
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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
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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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- 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
- E01C3/06—Methods or arrangements for protecting foundations from destructive influences of moisture, frost or vibration
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Road Paving Structures (AREA)
Abstract
A manufacturing process of a high-bearing and long-service-life water stable layer comprises the following steps: (1) and (4) stabilizing ingredients in water: the water-based composite material comprises 90% of graded broken stones, 3.5% of stabilizing agent and a proper amount of water in percentage by mass, wherein the graded broken stones comprise a plurality of broken stones with different grain diameters; (2) mixing raw materials: stirring the ingredients in the step 1 by a stirrer to obtain a mixture with initial setting time less than 180 minutes and final setting time less than 360 minutes, and ensuring that the mixture has enough time for transportation, paving and rolling; the invention has the beneficial effects that: by the manufacturing process, the service life of the highway is prolonged, the bearing capacity of the highway is improved, the highway can normally pass for a long time, and congestion and economic loss caused by road repair are avoided.
Description
The technical field is as follows:
the invention relates to the field of buildings, in particular to a manufacturing process of a high-bearing and long-service-life water-stable layer.
Background art:
the quality of the highway needs to be continuously improved due to the increasingly developed traffic, and the water stabilization layer is used as an important layer in the highway construction process, so that the service life and the bearing capacity of the highway are directly influenced.
The invention content is as follows:
the invention aims to solve the existing problems and provides a manufacturing process of a high-bearing and long-service-life water stabilization layer for prolonging the service life of a road and improving the bearing capacity of the road.
The technical solution of the invention is as follows:
the manufacturing process of the high-bearing and long-service-life water stabilization layer comprises the following steps:
(1) and (4) stabilizing ingredients in water: the water-based composite material comprises 90% of graded broken stones, 3.5% of stabilizing agent and a proper amount of water in percentage by mass, wherein the graded broken stones comprise a plurality of broken stones with different grain diameters;
(2) mixing raw materials: stirring the ingredients in the step 1 by a stirrer to obtain a mixture with initial setting time less than 180 minutes and final setting time less than 360 minutes, and ensuring that the mixture has enough time for transportation, paving and rolling;
(3) preparing an underlayer: before the water stable layer is paved, a subbase layer with enough density and strength is paved, and a road roller is adopted for rolling inspection. When the soft lying layer is found to be replaced in time, the loose part on the surface is treated by adopting a water spraying and stirring or replacing manner according to the field condition. The subbase layer has enough density and strength, otherwise, because the subbase layer has insufficient strength, the subbase layer is easy to crack, and finally the cracks are reflected to the surface layer, so that the service life of the surface layer is influenced;
(4) and (3) transporting the mixture: the transport vehicle for the mixture adopts a dumper with the capacity of more than 15 tons and good vehicle performance. When a transport vehicle is taken out of a warehouse and is loaded, the carriage is filled for three times, the carriage is loaded to be close to the side of a cab, then the tail part of the carriage is loaded, and finally the middle part of the carriage is loaded;
(5) spreading the mixture: paving at a distance of 8-10 meters by adopting two pavers in front of and behind one another, avoiding longitudinal seams, controlling the running speed of the pavers according to the transport distance and the feeding capacity of a mixer, controlling the speed to be 2-2.5 meters, and burying two thirds of a spiral material distributor of the pavers in a mixed material so as to avoid influencing the segregation of the mixed material;
(6) rolling: the principle of firstly lightening and then weighting, and firstly slowing and then speeding is adopted, weak vibration and then strong vibration are carried out, and finally the surface is pressed by static pressure, and the surface is pressed until the wheel track is formed by adopting a rubber wheel. Rolling the straight line section from two sides to the middle, rolling the curve section from inside to outside to ensure the forming of the transverse area of the roadbed, finishing the whole rolling operation process within 2 hours in order to ensure the quality during rolling, wherein the longest rolling operation process is not more than 3 hours, and the curve section is discarded after more than 3 hours;
(7) health preserving: curing for 7-8 days to harden the water-stable layer.
Preferably, the graded broken stone comprises large materials with the grain diameter of 19-31.5mm, small materials with the grain diameter of 4.75-19mm and stone powder with the grain diameter of 0.075-4.75mm, wherein the large materials are gravel seeds, and the small materials are needle-flake stones.
Preferably, the stabilizer is cement.
Preferably, the cement is cement discharged 7 days later.
Preferably, the blender has electronic metering and full-computer monitoring functions, and can feed 400t per hour.
Preferably, the transport vehicle adopts the waterproof cloth to cover the carriage during the transportation process, and the evaporation of water is prevented during the transportation process.
Preferably, the rolling times are 6-8 times, and the compaction degree required by the specification is achieved, so that the compaction degree of the base layer is ensured.
Preferably, the water content in step 1 is 6-7.2%.
Preferably, the maximum particle size of the graded broken stone is less than or equal to 37.5mm, the larger the damage of the oversized particle size to a mixer and a paver is, and the mixture is easy to separate.
Preferably, the maximum particle size of the graded crushed stone is 31.5 mm.
The invention has the beneficial effects that: by the manufacturing process, the service life of the highway is prolonged, the bearing capacity of the highway is improved, the highway can normally pass for a long time, and congestion and economic loss caused by road repair are avoided.
Description of the drawings:
FIG. 1 is a diagram of an actual measurement project of a water-stable layer according to the present invention;
the specific implementation mode is as follows:
example 1
The manufacturing process of the high-bearing and long-service-life water stabilization layer comprises the following steps:
(1) and (4) stabilizing ingredients in water: the water-based composite material comprises 90% of graded broken stones, 3.5% of stabilizing agent and a proper amount of water in percentage by mass, wherein the graded broken stones comprise a plurality of broken stones with different grain diameters;
(2) mixing raw materials: stirring the ingredients in the step 1 by a stirrer to obtain a mixture with initial setting time less than 180 minutes and final setting time less than 360 minutes;
(3) preparing an underlayer: before the water-stable layer is paved, paving an underlayer with enough density and strength;
(4) and (3) transporting the mixture: the transport vehicle for the mixture adopts a dumper with the capacity of more than 15 tons and good vehicle performance. When a transport vehicle is taken out of a warehouse and is loaded, the carriage is filled for three times, the carriage is loaded to be close to the side of a cab, then the tail part of the carriage is loaded, and finally the middle part of the carriage is loaded;
(5) spreading the mixture: two pavers are adopted in tandem, the distance between the two pavers is 8 meters, the running speed of the pavers is controlled according to the transport distance and the material feeding capacity of a mixer, the speed is controlled to be 2 meters, and two thirds of a spiral material distributor of the pavers is buried in a mixed material;
(6) rolling: the principle of firstly lightening and then weighting, and firstly slowing and then speeding is adopted, weak vibration and then strong vibration are carried out, and finally the surface is pressed by static pressure, and the surface is pressed until the wheel track is formed by adopting a rubber wheel. Rolling the straight line section from two sides to the middle, and rolling the curve section from inside to outside to ensure the forming of the transverse area of the roadbed;
(7) health preserving: curing for 7 days to harden the water-stable layer.
Specifically, the graded broken stone comprises large material with the grain size of 19mm, small material with the grain size of 4.75mm and stone powder with the grain size of 0.075 mm.
In particular, the stabilizer is cement.
Specifically, the cement is cement discharged 7 days later.
In particular, the mixing machine has electronic metering and full-computer monitoring functions and can feed 400t per hour.
Specifically, the transport vehicle adopts the waterproof cloth to cover the carriage in the transportation process.
Specifically, the number of rolling passes is 6.
Specifically, the water content in step 1 is 6%.
Specifically, the maximum particle size of the graded broken stone is less than or equal to 37.5 mm.
Specifically, the maximum particle size of the graded crushed stone is 31.5 mm.
Example 2
The manufacturing process of the high-bearing and long-service-life water stabilization layer comprises the following steps:
(1) and (4) stabilizing ingredients in water: the water-based composite material comprises 90% of graded broken stones, 3.5% of stabilizing agent and a proper amount of water in percentage by mass, wherein the graded broken stones comprise a plurality of broken stones with different grain diameters;
(2) mixing raw materials: stirring the ingredients in the step 1 by a stirrer to obtain a mixture with initial setting time less than 180 minutes and final setting time less than 360 minutes;
(3) preparing an underlayer: before the water-stable layer is paved, paving an underlayer with enough density and strength;
(4) and (3) transporting the mixture: the transport vehicle for the mixture adopts a dumper with the capacity of more than 15 tons and good vehicle performance. When a transport vehicle is taken out of a warehouse and is loaded, the carriage is filled for three times, the carriage is loaded to be close to the side of a cab, then the tail part of the carriage is loaded, and finally the middle part of the carriage is loaded;
(5) spreading the mixture: two spreading machines are adopted to spread at a distance of 9 meters in front of and behind each other, the running speed of the spreading machines is controlled according to the transport distance and the material feeding capacity of the mixer, the speed is controlled to be 2.2 meters, and two thirds of spiral material distributors of the spreading machines are buried in a mixed material;
(6) rolling: the principle of firstly lightening and then weighting, and firstly slowing and then speeding is adopted, weak vibration and then strong vibration are carried out, and finally the surface is pressed by static pressure, and the surface is pressed until the wheel track is formed by adopting a rubber wheel. Rolling the straight line section from two sides to the middle, and rolling the curve section from inside to outside to ensure the forming of the transverse area of the roadbed;
(7) health preserving: curing for 7.5 days to harden the water-stable layer.
Specifically, the graded broken stone comprises large materials with the grain size of 25.5mm, small materials with the grain size of 10.5mm and stone powder with the grain size of 3.25 mm.
In particular, the stabilizer is cement.
Specifically, the cement is cement discharged 7 days later.
In particular, the mixing machine has electronic metering and full-computer monitoring functions and can feed 400t per hour.
Specifically, the transport vehicle adopts the waterproof cloth to cover the carriage in the transportation process.
Specifically, the number of rolling passes was 7.
Specifically, the water content in step 1 is 6.5%.
Specifically, the maximum particle size of the graded broken stone is less than or equal to 37.5 mm.
Specifically, the maximum particle size of the graded crushed stone is 31.5 mm.
Example 3
The manufacturing process of the high-bearing and long-service-life water-stable layer is characterized by comprising the following steps of: the method comprises the following steps:
(1) and (4) stabilizing ingredients in water: the water-based composite material comprises 90% of graded broken stones, 3.5% of stabilizing agent and a proper amount of water in percentage by mass, wherein the graded broken stones comprise a plurality of broken stones with different grain diameters;
(2) mixing raw materials: stirring the ingredients in the step 1 by a stirrer to obtain a mixture with initial setting time less than 180 minutes and final setting time less than 360 minutes;
(3) preparing an underlayer: before the water-stable layer is paved, paving an underlayer with enough density and strength;
(4) and (3) transporting the mixture: the transport vehicle for the mixture adopts a dumper with the capacity of more than 15 tons and good vehicle performance. When a transport vehicle is taken out of a warehouse and is loaded, the carriage is filled for three times, the carriage is loaded to be close to the side of a cab, then the tail part of the carriage is loaded, and finally the middle part of the carriage is loaded;
(5) spreading the mixture: paving at a distance of 8-10 meters by adopting two pavers which are arranged in front of and behind each other, controlling the running speed of the pavers according to the transport distance and the material feeding capacity of a mixer, controlling the speed to be 2-2.5 meters, and burying two thirds of a spiral material distributor of the pavers in a mixed material;
(6) rolling: the principle of firstly lightening and then weighting, and firstly slowing and then speeding is adopted, weak vibration and then strong vibration are carried out, and finally the surface is pressed by static pressure, and the surface is pressed until the wheel track is formed by adopting a rubber wheel. Rolling the straight line section from two sides to the middle, and rolling the curve section from inside to outside to ensure the forming of the transverse area of the roadbed;
(7) health preserving: curing for 7-8 days to harden the water-stable layer.
Specifically, the graded broken stone comprises large materials with the grain size of 31.5mm, small materials with the grain size of 19mm and stone powder with the grain size of 4.75 mm.
In particular, the stabilizer is cement.
Specifically, the cement is cement discharged 7 days later.
In particular, the mixing machine has electronic metering and full-computer monitoring functions and can feed 400t per hour.
Specifically, the transport vehicle adopts the waterproof cloth to cover the carriage in the transportation process.
Specifically, the rolling times are 8 times.
Specifically, the water content in the step 1 is 7.2 percent
Specifically, the maximum particle size of the graded broken stone is less than or equal to 37.5 mm.
Specifically, the maximum particle size of the graded crushed stone is 31.5 mm.
As can be seen from fig. 1, the manufacturing process of this embodiment 3 improves the bearing capacity of the road and prolongs the service life of the road.
The foregoing is only for the purpose of understanding the method and the core concept of the present invention, and it should be noted that modifications and variations can be made by those skilled in the art without departing from the principle of the present invention, and these modifications and variations also fall into the protection scope of the appended claims.
Claims (10)
1. A manufacturing process of a high-bearing and long-service-life water-stable layer is characterized by comprising the following steps: the method comprises the following steps:
(1) and (4) stabilizing ingredients in water: the water-based composite material comprises 90% of graded broken stones, 3.5% of stabilizing agent and a proper amount of water in percentage by mass, wherein the graded broken stones comprise a plurality of broken stones with different grain diameters;
(2) mixing raw materials: stirring the ingredients in the step 1 by a stirrer to obtain a mixture with initial setting time less than 180 minutes and final setting time less than 360 minutes;
(3) preparing an underlayer: before the water-stable layer is paved, paving an underlayer with enough density and strength;
(4) and (3) transporting the mixture: the transport vehicle for the mixture adopts a dumper with the capacity of more than 15 tons and good vehicle performance. When a transport vehicle is taken out of a warehouse and is loaded, the carriage is filled for three times, the carriage is loaded to be close to the side of a cab, then the tail part of the carriage is loaded, and finally the middle part of the carriage is loaded;
(5) spreading the mixture: paving at a distance of 8-10 meters by adopting two pavers which are arranged in front of and behind each other, controlling the running speed of the pavers according to the transport distance and the material feeding capacity of a mixer, controlling the speed to be 2-2.5 meters, and burying two thirds of a spiral material distributor of the pavers in a mixed material;
(6) rolling: the principle of firstly lightening and then weighting, and firstly slowing and then speeding is adopted, weak vibration and then strong vibration are carried out, and finally the surface is pressed by static pressure, and the surface is pressed until the wheel track is formed by adopting a rubber wheel. Rolling the straight line section from two sides to the middle, and rolling the curve section from inside to outside to ensure the forming of the transverse area of the roadbed;
(7) health preserving: curing for 7-8 days to harden the water-stable layer.
2. The process for manufacturing the high-bearing long-life water-stable layer according to claim 1, wherein: the graded broken stone comprises large material with the grain diameter of 19-31.5mm, small material with the grain diameter of 4.75-19mm and stone powder with the grain diameter of 0.075-4.75 mm.
3. The process for manufacturing the high-bearing long-life water-stable layer according to claim 1, wherein: the stabilizer is cement.
4. The process for manufacturing the high-bearing long-life water-stable layer according to claim 3, wherein: the cement is cement discharged 7 days later.
5. The process for manufacturing the high-bearing long-life water-stable layer according to claim 1, wherein: the mixing machine has the functions of electronic metering and full-computer monitoring, and can feed 400t per hour.
6. The process for manufacturing the high-bearing long-life water-stable layer according to claim 1, wherein: the transport vehicle adopts the waterproof cloth to cover the carriage in the transportation process.
7. The process for manufacturing the high-bearing long-life water-stable layer according to claim 1, wherein: the rolling times are 6-8 times.
8. The process for manufacturing the high-bearing long-life water-stable layer according to claim 1, wherein: the water content in the step 1 is 6-7.2%.
9. The process for manufacturing the high-bearing long-life water-stable layer according to claim 1, wherein: the maximum grain size of the graded broken stone is less than or equal to 37.5 mm.
10. The process for manufacturing the high-load-bearing and long-life water-stable layer according to claim 9, wherein: the maximum particle size of the graded broken stone is 31.5 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911037086.4A CN110835873A (en) | 2019-10-29 | 2019-10-29 | Manufacturing process of high-bearing long-service-life water-stable layer |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911037086.4A CN110835873A (en) | 2019-10-29 | 2019-10-29 | Manufacturing process of high-bearing long-service-life water-stable layer |
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| CN110835873A true CN110835873A (en) | 2020-02-25 |
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| CN201911037086.4A Pending CN110835873A (en) | 2019-10-29 | 2019-10-29 | Manufacturing process of high-bearing long-service-life water-stable layer |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0737787A1 (en) * | 1995-04-10 | 1996-10-16 | N.V. Bekaert S.A. | Continuous floor slab construction |
| 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 |
| CN110144797A (en) * | 2019-05-14 | 2019-08-20 | 苏州嘉奕晟中小企业科技咨询有限公司 | A kind of asphaltic concrete road laying method with rational gradation composition rubble match ratio |
-
2019
- 2019-10-29 CN CN201911037086.4A patent/CN110835873A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0737787A1 (en) * | 1995-04-10 | 1996-10-16 | N.V. Bekaert S.A. | Continuous floor slab construction |
| 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 |
| CN110144797A (en) * | 2019-05-14 | 2019-08-20 | 苏州嘉奕晟中小企业科技咨询有限公司 | A kind of asphaltic concrete road laying method with rational gradation composition rubble match ratio |
Non-Patent Citations (1)
| Title |
|---|
| 张俊: "《道路工程施工技术》", 30 April 2018, 华中科技大学出版社 * |
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Application publication date: 20200225 |