CN115287983A - Method and device for testing pavement broken stone loss rate on asphalt surface - Google Patents
Method and device for testing pavement broken stone loss rate on asphalt surface Download PDFInfo
- Publication number
- CN115287983A CN115287983A CN202210621421.0A CN202210621421A CN115287983A CN 115287983 A CN115287983 A CN 115287983A CN 202210621421 A CN202210621421 A CN 202210621421A CN 115287983 A CN115287983 A CN 115287983A
- Authority
- CN
- China
- Prior art keywords
- layer
- standard sand
- asphalt
- measuring
- ring
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000010426 asphalt Substances 0.000 title claims abstract description 90
- 239000004575 stone Substances 0.000 title claims abstract description 77
- 238000012360 testing method Methods 0.000 title claims abstract description 56
- 238000000034 method Methods 0.000 title claims abstract description 35
- 239000004576 sand Substances 0.000 claims abstract description 97
- 238000005070 sampling Methods 0.000 claims abstract description 22
- 238000005259 measurement Methods 0.000 claims abstract description 17
- 238000004519 manufacturing process Methods 0.000 claims abstract description 4
- 238000005303 weighing Methods 0.000 claims description 10
- 238000005096 rolling process Methods 0.000 claims description 9
- 230000001105 regulatory effect Effects 0.000 claims description 8
- 238000010998 test method Methods 0.000 claims description 3
- 230000014759 maintenance of location Effects 0.000 abstract description 6
- 239000000463 material Substances 0.000 abstract description 6
- 238000012372 quality testing Methods 0.000 abstract description 2
- 239000010410 layer Substances 0.000 description 104
- 238000010276 construction Methods 0.000 description 8
- 238000003892 spreading Methods 0.000 description 8
- 238000012423 maintenance Methods 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 238000007790 scraping Methods 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 239000002344 surface layer Substances 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C23/00—Auxiliary devices or arrangements for constructing, repairing, reconditioning, or taking-up road or like surfaces
- E01C23/01—Devices or auxiliary means for setting-out or checking the configuration of new surfacing, e.g. templates, screed or reference line supports; Applications of apparatus for measuring, indicating, or recording the surface configuration of existing surfacing, e.g. profilographs
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Road Repair (AREA)
Abstract
The invention belongs to the field of asphalt surface pavement quality testing, and particularly relates to a method and a device for testing the loss rate of crushed stone on an asphalt surface pavement, wherein the method for testing the loss rate of the crushed stone on the asphalt surface pavement comprises the following steps: manufacturing a second layer with a limited area on the surface of the first layer to serve as a sampling layer, and performing a standard sand consumption test on the sampling layer to obtain a standard sand consumption m0; constructing a second layer on the surface of the first layer outside the sampling layer, and performing standard sand consumption testing on the second layer before and after the speed-limited open traffic period to obtain standard sand consumption m1 and m2; and (3) comparing the standard sand consumption m0 and m1 and/or the standard sand consumption m0 and m2 to obtain the pavement broken stone loss rate on the asphalt surface. The method for testing the loss rate of the road surface crushed stone on the asphalt surface not only avoids the error caused by the fact that the crushed stone material is peeled off by a manual method to evaluate the retention rate of the road surface crushed stone on the asphalt surface, improves the accuracy and the standard of measurement, but also is simple and convenient to test and convenient to operate.
Description
Technical Field
The invention belongs to the field of asphalt surface pavement quality testing, and particularly relates to a method and a device for testing the loss rate of road macadam on an asphalt surface.
Background
The asphalt macadam surface pavement is a pavement structure form and comprises one or more asphalt layer structures containing macadams, the asphalt macadam surface pavement is constructed by a layer paving method, and the asphalt macadam surface pavement is generally applied to most countries in Africa due to simple and convenient construction and low manufacturing cost. Taking a double-layer asphalt macadam surface pavement as an example, the construction steps are as follows: firstly spreading a first layer of asphalt, then spreading a first layer of gravel, continuously spreading a second layer of asphalt and a second layer of gravel after rolling maintenance, and opening traffic after rolling maintenance to form a pavement on the surface of the asphalt gravel. Based on the construction mode, the following construction quality problems are easy to occur on the road surface of the type: the adhesion between the crushed stone and the asphalt needs a certain time of rolling to be gradually bonded firmly, so the crushed stone is easy to dissipate in the period of vehicle-passing rolling maintenance, and the road surface on the surface of the asphalt crushed stone is easy to be oiled after the crushed stone is dissipated.
The service life and the service level of the asphalt pavement are obviously influenced by the loss of the road surface gravels on the asphalt surface, and for the road surface on the double-layer asphalt macadam surface, the loss rate of the gravels is a key factor influencing the service life of the road surface. In the existing method for measuring the loss of road surface crushed stone on the asphalt crushed stone surface, part of engineers use a manual method to peel off the formed crushed stone material on the asphalt surface to evaluate the retention rate of the road surface crushed stone on the surface. The quantity of the crushed stones collected by the method has certain errors, accuracy of a test result is influenced, and a measurement effect is poor.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a method for testing the loss rate of road surface broken stone on the asphalt surface.
In order to achieve the purpose, the invention provides the following technical scheme:
a method for testing the dissipation rate of crushed stone on a pavement on the surface of an asphalt comprises a first layer and a second layer positioned on the surface of the first layer, wherein crushed stone is adhered to the first layer and the second layer through rolling; the test method comprises the following steps:
manufacturing a second layer with a limited area on the surface of the first layer to serve as a sampling layer, and performing a standard sand consumption test on the sampling layer to obtain a standard sand consumption m0;
constructing a second layer on the surface of the first layer outside the sampling layer, and performing standard sand consumption testing on the second layer before and after the speed-limited open traffic period to obtain standard sand consumption m1 and m2;
and (5) comparing the standard sand consumption m0 and m1 and/or the standard sand consumption m0 and m2 to obtain the pavement broken stone loss rate on the asphalt surface.
As mentioned above, the method for testing the loss rate of the crushed stones on the pavement on the asphalt surface preferably includes the following steps:
surrounding a measuring region with the same height as the second layer with the surface to be measured as the bottom surface
And filling standard sand in the measuring area and calculating the filling amount of the standard sand, wherein the filling amount of the standard sand is the consumption amount of the standard sand on the surface of the second layer.
In the method for testing the pavement macadam scattering rate on the asphalt surface, it is further preferable that the step of enclosing a measurement area having the same height as the second layer by using the surface to be tested as the bottom surface includes:
placing a measuring ring with the same height as the second layer on the surface to be measured;
and closing a gap between the measuring ring and the surface to be measured.
As mentioned above, in the method for testing the pavement macadam scattering rate on the asphalt surface, it is further preferable that the filling of the standard sand into the measurement area and the calculation of the filling amount of the standard sand include:
weighing standard sand with preset mass;
filling standard sand into the measuring area until the upper surface of the standard sand is flush with the upper surface of the measuring ring;
and weighing the mass of the residual standard sand, and calculating to obtain the consumption of the standard sand.
In the method for testing the loss rate of the crushed stone on the surface of the asphalt, it is further preferable that the calculation of the loss rate of the crushed stone on the surface of the asphalt according to the standard sand consumptions m0, m1 and m2 includes:
the broken stone loss rate V1= (m 1-m 0)/m 0 when the second layer is laid;
after the speed limit open traffic period, the broken stone loss rate of the second layer relative to the sampling layer is V2= (m 2-m 0)/m 0.
The invention further provides a device for testing the loss rate of the road surface crushed stone on the asphalt surface, which is used for the method for testing the loss rate of the road surface crushed stone on the asphalt surface, and comprises the following steps:
a measurement ring having a through cavity;
the measuring platform is of a plate-shaped structure provided with a central hole, and is sleeved at one end of the measuring ring;
the total height of the measuring ring and the measuring platform is the same as the height of the second layer.
The device for testing the pavement broken stone loss rate at the asphalt surface is further preferred, the measuring ring comprises a positioning ring and an adjusting ring which are sleeved with each other, the positioning ring is fixedly connected with the measuring platform, and the adjusting ring is adjustably connected with the measuring platform.
The device for testing the pavement broken stone loss rate on the asphalt surface preferably further comprises a plurality of regulators, and the regulators are distributed along the circumferential direction of the measuring ring; the regulator comprises a threaded rod and a regulating nut, the lower end of the threaded rod is connected with the regulating ring, the upper end of the threaded rod penetrates through the measuring platform, and the regulating nut is sleeved on the threaded rod above the measuring platform.
The device for testing the loss rate of road surface crushed stones on the asphalt surface is further preferably characterized in that the adjusting ring is a circular ring or a polygonal ring.
The device for testing the pavement broken stone loss rate on the asphalt surface preferably has the advantages that the measuring platform is sleeved on the periphery of the end part of the measuring ring, and the top surface of the measuring platform is flush with the top surface of the measuring ring; or
The end face of the measuring ring is connected to the surface of the periphery of the central hole of the measuring platform.
Compared with the prior art, the invention has the following beneficial effects:
the second layer with a limited area is manufactured to serve as a sampling layer, standard sand consumption is tested on the second layer before and after the speed-limiting open traffic period, and the pavement broken stone loss rate on the asphalt surface is calculated according to the obtained standard sand consumption, so that errors caused when broken stone materials are peeled off manually to evaluate the pavement broken stone retention rate on the surface are avoided, and the measurement accuracy and the standard performance are improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a schematic view of a measurement apparatus according to the present invention, including a positioning ring, a measuring platform, and an adjuster;
fig. 2 is a schematic view of the adjusting ring of the present invention.
FIG. 3 is a schematic view of the surface of the asphalt pavement of the present invention.
Description of reference numerals:
1-a positioning ring, 2-a measuring platform, 3-a regulator, 4-a regulating ring, 5-a first layer, 6-a second layer, and 7-gravel.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the terms in the present invention can be understood in a specific case to those skilled in the art.
As shown in fig. 1 to 3, the method for testing the loss rate of crushed stone on the asphalt surface pavement according to one embodiment of the present invention includes that the asphalt surface pavement includes at least a first layer 5 and a second layer 6 on the surface of the first layer 5, and the second layer 6 is an asphalt layer with crushed stone 7 adhered thereto; the method mainly comprises the following steps:
making 3m on the surface of the first layer 5 2 The second layer 6 of (2) is used as a sampling layer, and standard sand consumption testing is carried out on the sampling layer to obtain standard sand consumption m0;
constructing a second layer 6 on the surface of the first layer 5 outside the sampling layer, and performing standard sand consumption testing on the second layer 6 before and after the speed-limited open traffic period to obtain standard sand consumption m1 and m2;
and (5) comparing the standard sand consumption m0 and m1 and/or m0 and m2 to obtain the pavement broken stone loss rate on the asphalt surface.
The road surface on the surface of the asphalt is an asphalt pavement paving structure, is widely applied in Africa, and is divided into a single-layer type, a double-layer type and a three-layer type according to the difference of the times of asphalt pouring and gravel spreading, and the most used is the double-layer type. The pavement on the asphalt surface is constructed by adopting a layer-paving method, taking a double-layer type pavement on the asphalt surface as an example, firstly cleaning the surface (ground base layer) of permeable layer oil, immediately spraying a first layer of asphalt bonding layer oil, then spreading a first layer of broken stone, continuously spraying a second layer of asphalt bonding layer oil after rolling maintenance, spreading a second layer of broken stone, firstly limiting speed and passing after rolling maintenance, and then opening traffic formally to form the pavement on the asphalt broken stone surface. The asphalt surface is a thin layer surface layer of the pavement on the asphalt surface, the thickness is usually not more than 3cm, and the pavement macadam scattering rate on the asphalt surface is the macadam scattering rate of the thin layer surface layer of the pavement on the asphalt surface.
In one embodiment of the present invention, the first layer 5 may be a base layer, or may be an asphalt layer having the same structure as the second layer 6, and when it is an asphalt layer, it may be one layer or may be a plurality of layers; the second layer 6 is applied directly to the surface of the first layer so that the lower surface of the second layer is in contact with the upper surface of the first layer 5.
In the method, firstly, a region is selected on the surface of a constructed first layer, construction sampling is carried out on a second layer, the second layer with a limited area is obtained and is used as a sampling layer, and then a standard sand consumption test is carried out on the sampling layer, so that a standard sand consumption m0 on the sampling layer is obtained. Secondly, performing layer paving construction on a second layer to obtain a complete asphalt macadam surface pavement with a first layer and a second layer, uniformly treating the local surface with the lack of macadams on the surface and the local surface with the overlapped macadams after spreading the second layer of macadams in the construction process to ensure that the macadams are uniformly distributed, and then rolling by adopting a tyre roller to ensure that the macadams are gradually adhered to asphalt stably; and performing a standard sand consumption test on the upper surface of the second layer before completing the construction and performing speed-limiting traffic to obtain a standard sand consumption m1. And then arranging a bump belt for limiting the passing speed of traffic vehicles on the road surface, limiting the speed and opening the traffic for a period of time, performing a standard sand consumption test on the upper surface of the second layer again after the speed-limiting opening traffic period to obtain a standard sand consumption m2, selecting a test position at an adjacent position of a test standard sand consumption place before the speed-limiting opening traffic before the standard sand consumption test is performed, treating the surface of the test position, cleaning the non-adhered crushed stones floating on the surface, and starting to test the standard sand consumption.
And calculating the loss rate of the road surface crushed stone of the asphalt surface before and after the speed-limited open traffic period through m0, m1 and m2, and comparing to evaluate the quality of the road surface of the asphalt surface. Of course, in order to ensure the accuracy of m0, m1, m2, the standard sand consumption m0, m1, m2 may be obtained by a plurality of standard sand consumption tests and by the average value of the tests.
The pavement broken stone loss rate on the asphalt surface is calculated according to the obtained standard sand consumption, so that errors caused when broken stone materials are peeled off manually to evaluate the pavement broken stone retention rate on the surface are avoided, and the measurement accuracy and the standard are improved.
In one embodiment of the present invention, the standard sand consumption test comprises the steps of:
and (3) surrounding a measuring area with the same height as the second layer 6 by taking the surface to be measured as the bottom surface, filling standard sand into the measuring area, and calculating the filling amount of the standard sand, wherein the filling amount of the standard sand is the standard sand consumption on the surface of the second layer 6.
Before a measuring area of the surface to be measured is filled with standard sand, the surface is treated, broken stones 7 which are not adhered to the pavement on the asphalt surface are cleaned, namely the broken stones 7 scattered from the pavement on the asphalt surface are cleaned, and then the consumption of the standard sand is tested.
In one embodiment of the present invention, filling the measurement area with standard sand and calculating a filling amount of the standard sand includes:
weighing standard sand with preset mass;
filling standard sand into the measuring area until the upper surface of the standard sand is flush with the upper surface of the measuring ring;
and weighing the mass of the residual standard sand, and calculating to obtain the standard sand filling amount.
And filling the standard sand into the measurement area until the upper surface of the standard sand is flush with the upper surface of the measurement ring, and taking the standard sand as the filling amount of the standard sand, namely the consumption m0, m1 and m2 of the standard sand have a common filling standard, so that the measurement result is accurate and the error is small.
In one embodiment of the invention, the calculating of the pavement macadam scattering rate on the asphalt surface according to the standard sand consumption m0, m1 and m2 comprises the following steps:
the broken stone loss rate V1= (m 1-m 0)/m 0 when the second layer is laid;
after the speed limit open traffic period, the broken stone loss rate of the second layer relative to the sampling layer is V2= (m 2-m 0)/m 0.
The difference value between m1 and m0 is the mass of broken stones lost by the second layer 6 of standard sand before the speed-limiting open traffic period, and the ratio of the mass to m0 is used for evaluating the loss rate of the broken stones on the pavement at the asphalt surface before the speed-limiting open traffic period. The difference value of m2 and m0 is the mass of broken stones lost by the second layer 6 of standard sand after the speed-limiting open traffic period, and the ratio of the mass to m0 is used for evaluating the loss rate of broken stones on the pavement at the asphalt surface after the speed-limiting open traffic period. And evaluating the quality of the pavement on the asphalt surface by comparing the loss rate of the crushed stones on the pavement on the asphalt surface before and after the speed-limiting open traffic period. The data of the loss rate meeting the requirements can be defined according to the gravel loss rate V1, then the pavement gravel loss condition in the speed-limiting open period is judged according to the difference value of the gravel loss rate V2 and the gravel loss rate V1, and when the difference value exceeds the technical specification allowable value, the pavement on the surface at the moment can be judged to be not meeting the requirements.
The invention also provides a device for testing the loss rate of road surface crushed stone on the asphalt surface, which is used for the method for testing the loss rate of road surface crushed stone on the asphalt surface, and comprises the following steps:
a measuring ring having a through cavity;
the measuring platform 2 is a plate-shaped structure provided with a central hole, and the measuring platform is sleeved at one end of the measuring ring;
the total height of the measuring ring and the measuring platform 2 is the same as the height of the second layer.
The measuring ring is provided with a through cavity for receiving the standard sand filled in the through cavity, and the measuring platform 2 is used for collecting the residual standard sand after the measuring ring is filled, so that errors caused when the standard sand is collected after being scattered to the surface of the second layer are avoided.
In one embodiment of the invention, the measuring ring comprises a positioning ring 1 and an adjusting ring 4 which are sleeved with each other, the positioning ring 1 is fixedly connected with the measuring platform 2, and the adjusting ring 4 is adjustably connected with the measuring platform 2.
The measuring ring is fixed in the area to be measured by the positioning ring 1, the adjusting ring 4 is adjustably connected with the measuring platform 2, and the total height of the adjustable measuring ring is consistent with the surface height of the second layer.
In one embodiment of the invention, the measuring device further comprises a plurality of regulators 3, wherein the regulators 3 are distributed along the circumferential direction of the measuring ring; the regulator includes threaded rod and adjusting nut, and the lower extreme and the adjustable ring 4 of threaded rod are connected, and the upper end is worn to adorn on measuring platform 2, and adjusting nut is adorned on the threaded rod in measuring platform 2 top suit.
The adjusting ring 4 is adjustably connected with the measuring platform 2 through the adjuster 3, and the height of the adjuster is increased or reduced through the threaded rod of the adjuster 3 and the adjusting nut, so that the total height of the adjusting measuring ring is adjusted to be consistent with the surface height of the second layer.
In one embodiment of the invention, the adjusting ring 3 is a circular ring or a polygonal ring.
In one embodiment of the present invention, the measuring platform 2 is sleeved on the outer circumference of the end of the measuring ring, and the top surface of the measuring platform 2 is flush with the top surface of the measuring ring.
In one embodiment of the invention, the end face of the measuring ring is attached to the surface of the outer circumference of the central hole of the measuring platform.
The second layer 6 sampling layer may have a defined area of 1m 2 、2m 2 、3m 2 The adjusting ring 4 is a polygon such as a circle or a square, and the limited area is 3m in the embodiment 2 The use method of the testing device is described by taking the circular ring as an example:
the positioning ring 1 is made of a steel plate through cutting, the inner diameter is 40cm, the outer diameter is 40.2cm, and the height is 5mm; a measuring platform 2 is arranged at the upper part of the positioning ring 1, the outer diameter of the measuring platform 2 is 50cm, and the wall thickness of the measuring platform 2 and the positioning ring 1 is 1mm; the outer side of the inner diameter of the positioning ring is tightly attached to the inner diameter wall, 3 regulators 3 are arranged, and the height regulating range is 5-15mm. The adjusting ring 4 is provided with an upper opening and a lower opening, has the height of 6mm, the wall thickness of 0.5mm and the outer diameter of 39.5cm and is connected with an adjuster.
The method comprises the steps of taking the surface to be measured as the bottom surface to enclose a measuring area, placing a measuring ring and an adjusting ring 4 in the measuring area, adjusting the combined height of the positioning ring 1, the adjuster 3 and the adjuster 4 of the measuring ring and enabling the combined height to be equal to the height of a second layer, checking the condition of the bottom of the periphery of the positioning ring 1, and sealing a gap between the adjusting ring 4 and the surface of the second layer by using putty to avoid sand leakage.
Weighing 1000g of standard sand, spreading a measuring cup in the measuring ring, wherein the measuring cup is 200ml, scraping the standard sand to be flush with the top of the positioning ring 1 by using a steel ruler, the length of the steel ruler is 50cm, scraping and moving redundant sand materials to an outer side measuring platform 2, recovering and weighing, and calculating to obtain the filling amount m0 of the standard sand.
And measuring the consumption m1 and m2 of the standard sand on the surface of the second layer 6 before and after the speed-limited open traffic period by the same method. And calculating the pavement macadam loss rate before and after the speed limit open traffic period through formulas V1= (m 1-m 0)/m 0 and V2= (m 2-m 0)/m 0.
Compared with the existing method for testing the retention rate of road surface crushed stones on the asphalt surface, the method has the following beneficial effects:
the second layer with a limited area is manufactured to serve as a sampling layer, standard sand consumption is tested on the second layer before and after the speed-limiting open traffic period, the dissipation rate of the road surface broken stones at the surface of the asphalt is calculated according to the obtained standard sand consumption, errors caused when broken stone materials are peeled off manually to evaluate the retention rate of the road surface broken stones at the surface are avoided, and the accuracy and the standard of measurement are improved.
By weighing the standard sand with the preset mass and weighing the mass of the residual standard sand after the measurement area is filled, the labor intensity of workers is reduced when broken stones are collected, and the test method is simple and convenient and is convenient to operate.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (10)
1. The method for testing the loss rate of the crushed stone on the surface of the asphalt is characterized in that the surface of the asphalt at the surface at least comprises a first layer and a second layer positioned on the surface of the first layer, wherein the second layer is an asphalt layer adhered with the crushed stone through rolling; the test method comprises the following steps:
manufacturing a second layer with a limited area on the surface of the first layer to serve as a sampling layer, and performing a standard sand consumption test on the sampling layer to obtain a standard sand consumption m0;
constructing a second layer on the surface of the first layer outside the sampling layer, and performing standard sand consumption testing on the second layer before and after the speed-limiting open traffic period to obtain standard sand consumption m1 and m2;
and (5) comparing the standard sand consumption m0 and m1 and/or the standard sand consumption m0 and m2 to obtain the pavement broken stone loss rate on the asphalt surface.
2. The method for testing the loss rate of the crushed stones on the pavement on the asphalt surface according to claim 1, wherein the standard sand consumption test comprises the following steps:
surrounding a measuring region with the same height as the second layer with the surface to be measured as the bottom surface
And filling standard sand in the measurement area and calculating the filling amount of the standard sand, wherein the filling amount of the standard sand is the standard sand consumption on the surface of the second layer.
3. The method for testing the loss rate of the crushed stone on the pavement on the asphalt surface according to claim 2, wherein the step of surrounding a measuring area with the same height as the second layer by taking the surface to be tested as the bottom surface comprises the following steps:
placing a measuring ring with the same height as the second layer on the surface to be measured;
and closing a gap between the measuring ring and the surface to be measured.
4. The method for testing the loss rate of the crushed stones on the pavement at the asphalt surface according to claim 2, wherein the filling of the standard sand into the measurement area and the calculation of the filling amount of the standard sand comprise:
weighing standard sand with preset mass;
filling standard sand into the measuring area until the upper surface of the standard sand is flush with the upper surface of the measuring ring;
and weighing the mass of the residual standard sand, and calculating to obtain the standard sand filling amount.
5. The method for testing the loss rate of the road surface crushed stone on the asphalt surface according to claim 1, wherein the step of calculating the loss rate of the road surface crushed stone on the asphalt surface according to standard sand consumption m0, m1 and m2 comprises the following steps:
the gravel loss rate V1= (m 1-m 0)/m 0 when the second layer is laid;
after the speed limit open traffic period, the broken stone loss rate of the second layer relative to the sampling layer is V2= (m 2-m 0)/m 0.
6. A device for testing the loss rate of road surface crushed stone on an asphalt surface is characterized in that the device is used for the method for testing the loss rate of road surface crushed stone on the asphalt surface in claims 1-5, and comprises the following steps:
a measurement ring having a through cavity;
the measuring platform is of a plate-shaped structure provided with a central hole, and is sleeved at one end of the measuring ring;
the total height of the measuring ring and the measuring platform is the same as the height of the second layer.
7. The device for testing the dissipation rate of road surface crushed stones on the asphalt surface according to claim 6, wherein the measuring ring comprises a positioning ring and an adjusting ring which are sleeved with each other, the positioning ring is fixedly connected with the measuring platform, and the adjusting ring is adjustably connected with the measuring platform.
8. The apparatus for testing the rate of dissipation of road surface crushed stones at an asphalt surface according to claim 7, further comprising a plurality of adjusters arranged along a circumferential direction of the measuring ring; the regulator comprises a threaded rod and a regulating nut, the lower end of the threaded rod is connected with the regulating ring, the upper end of the threaded rod penetrates through the measuring platform, and the regulating nut is sleeved on the threaded rod above the measuring platform.
9. The apparatus for testing the rate of dissipation of road surface crushed stones on an asphalt surface according to claim 6, wherein the adjusting ring is a circular ring or a polygonal ring.
10. The device for testing the pavement broken stone loss rate on the asphalt surface according to claim 6, wherein the measuring platform is sleeved on the periphery of the end part of the measuring ring, and the top surface of the measuring platform is flush with the top surface of the measuring ring; or the end face of the measuring ring is connected to the surface of the periphery of the central hole of the measuring platform.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210621421.0A CN115287983B (en) | 2022-06-02 | 2022-06-02 | Method and device for testing pavement broken stone loss rate at asphalt surface |
| PCT/CN2022/110289 WO2023231174A1 (en) | 2022-06-02 | 2022-08-04 | Test method for crushed stone scatter ratio of bituminous surface treatment pavement, and test device thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210621421.0A CN115287983B (en) | 2022-06-02 | 2022-06-02 | Method and device for testing pavement broken stone loss rate at asphalt surface |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115287983A true CN115287983A (en) | 2022-11-04 |
| CN115287983B CN115287983B (en) | 2024-04-26 |
Family
ID=83819848
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210621421.0A Active CN115287983B (en) | 2022-06-02 | 2022-06-02 | Method and device for testing pavement broken stone loss rate at asphalt surface |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN115287983B (en) |
| WO (1) | WO2023231174A1 (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090097918A1 (en) * | 2007-10-15 | 2009-04-16 | Larry Larson | Seal Coat Process Utilizing Multiple Applications of Asphalt Binder & Aggregate |
| CN103616311A (en) * | 2013-12-02 | 2014-03-05 | 西南交通大学 | Method for evaluating bonding performance of wearing layer and embedded layer of hot-pressed bituminous mixture |
| CN110093830A (en) * | 2019-04-22 | 2019-08-06 | 西安正源道路养护工程有限公司 | The fine rubble top dressing layer of bituminous pavement and its construction method |
| CN211227993U (en) * | 2019-09-27 | 2020-08-11 | 中交一公局集团有限公司 | Convenient pitch surface department road surface rubble that removes testing arrangement for scattering and disappearing rate |
| CN214245178U (en) * | 2020-10-13 | 2021-09-21 | 江苏常凌交通工程有限公司 | Pavement paving structure |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1737496A (en) * | 2005-09-08 | 2006-02-22 | 吉林省水利科学研究院 | Method for measure effective pore diameter of greening concrete |
| MX2011001035A (en) * | 2011-01-27 | 2012-07-27 | Mexicano Inst Petrol | Procedure for the determination of effective and total porosity of carbonated sedimentary rocks, and morphology characterization of their micro and nanopores. |
| CN103234887A (en) * | 2013-04-10 | 2013-08-07 | 山东建泽混凝土有限公司 | A detection method for valid communicating porosity of a porous continuous planting concrete specimen |
| CN214097079U (en) * | 2020-12-25 | 2021-08-31 | 吴江永盛混凝土有限公司 | Detection apparatus for plant growth concrete ecological aperture |
| CN112964592B (en) * | 2021-02-05 | 2023-11-07 | 合肥工业大学 | Indoor detection method for high-elastic rubber asphalt composite crushed stone seal layer |
-
2022
- 2022-06-02 CN CN202210621421.0A patent/CN115287983B/en active Active
- 2022-08-04 WO PCT/CN2022/110289 patent/WO2023231174A1/en unknown
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090097918A1 (en) * | 2007-10-15 | 2009-04-16 | Larry Larson | Seal Coat Process Utilizing Multiple Applications of Asphalt Binder & Aggregate |
| CN103616311A (en) * | 2013-12-02 | 2014-03-05 | 西南交通大学 | Method for evaluating bonding performance of wearing layer and embedded layer of hot-pressed bituminous mixture |
| CN110093830A (en) * | 2019-04-22 | 2019-08-06 | 西安正源道路养护工程有限公司 | The fine rubble top dressing layer of bituminous pavement and its construction method |
| CN211227993U (en) * | 2019-09-27 | 2020-08-11 | 中交一公局集团有限公司 | Convenient pitch surface department road surface rubble that removes testing arrangement for scattering and disappearing rate |
| CN214245178U (en) * | 2020-10-13 | 2021-09-21 | 江苏常凌交通工程有限公司 | Pavement paving structure |
Non-Patent Citations (2)
| Title |
|---|
| 王玉廷;: "灌砂法检测压实度试洞深度和标准砂密度关系分析", 交通世界(建养.机械), no. 09 * |
| 郑木莲;彭磊;马海淋;: "沥青稳定碎石排水层施工技术要点", 公路, no. 10 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN115287983B (en) | 2024-04-26 |
| WO2023231174A1 (en) | 2023-12-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Do et al. | Pavement polishing—Development of a dedicated laboratory test and its correlation with road results | |
| Afonso et al. | Characterization of the skid resistance and mean texture depth in a permeable asphalt pavement | |
| CN115287983A (en) | Method and device for testing pavement broken stone loss rate on asphalt surface | |
| CN104677800A (en) | Simulated rainfall pattern macro-porous pavement water drainage capacity testing equipment and method | |
| Yager et al. | Macrotexture and drainage measurements on a variety of concrete and asphalt surfaces | |
| Wilson et al. | Polishing aggregates to equilibrium skid resistance | |
| Bendtsen et al. | Clogging of porous bituminous surfacings: an investigation in Copenhagen | |
| Sarsam et al. | Assessment of texture and skid variables at pavement surface | |
| Ongel et al. | Investigation of noise, durability, permeability, and friction performance trends for asphaltic pavement surface types: first-and second-year results | |
| CN109870557A (en) | A kind of test method of determining crushed stone sealing maximum asphalt content | |
| Thenuwara et al. | Methodology to incorporate frictional performance in the pavement management system of Sri Lankan expressways | |
| CN109709019A (en) | A kind of road section permeability performance measuring method and experimental rig | |
| KR101615354B1 (en) | Device for measuring compaction density of asphalt pavement | |
| CN217083608U (en) | Direct-reading type road surface structure depth measuring instrument | |
| Pietruszewski et al. | Evaluation of airfield pavement evenness | |
| CN106868968B (en) | A kind of non-flexible foundation bituminous pavement entirety thick plate structure construction method | |
| CN110835888A (en) | Construction method for leveling top surface of secondary beam falling support after jacking | |
| Song et al. | Airport pavement roughness index relationships using the Federal Aviation Administration (FAA) profiling system | |
| Wilke | Road impacts from shale energy development | |
| van der Walt et al. | Deterioration cost due to camber for chipsealed pavements over granular bases | |
| LEONG et al. | Development of Low Noise Road Surfacing on Local Roads in Hong Kong | |
| CN221037607U (en) | Automatic measurement device for on-site sprinkling amount of emulsified asphalt | |
| CN114295508B (en) | Method for evaluating abrasion performance of railway fastener backing plate material and structure on sleeper respectively | |
| CN218175523U (en) | Manual sanding device capable of achieving rapid rounding | |
| Ji et al. | Reliability Considerations of Airport Concrete Pavement Design Using Variation of Backcalculated Modulus |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |