CN108411747B - Texture homogeneity test method for drainage asphalt pavement - Google Patents
Texture homogeneity test method for drainage asphalt pavement Download PDFInfo
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- CN108411747B CN108411747B CN201810136857.4A CN201810136857A CN108411747B CN 108411747 B CN108411747 B CN 108411747B CN 201810136857 A CN201810136857 A CN 201810136857A CN 108411747 B CN108411747 B CN 108411747B
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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
- 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
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Abstract
The invention discloses a texture homogeneity test method of a drainage asphalt pavement, which comprises the steps of selecting a plane to be tested on the surface of the drainage asphalt pavement; weighing the weight of the standard paper; coating a coloring material on the roller; coating a coloring material on the plane to be measured by using a roller; attaching the standard paper coated with the pigment on the surface of the plane to be measured; sequentially placing a PE foam board and a steel block on the standard paper and keeping for a certain time; weighing the mass of the standard paper with the pigment; cutting off the part of the standard paper with the pigment and weighing the mass of the part; calculating the void ratio of the plane to be measured; and calculating the texture homogeneity of the drainage asphalt pavement. The local pit grooves of the drainage asphalt pavement in the construction process can be effectively prevented through texture homogeneity analysis of the drainage asphalt pavement, the damage degree of the traffic lane load operation of the drainage asphalt pavement can be evaluated, and the advanced pre-maintenance opportunity is controlled.
Description
Technical Field
The invention relates to the technical field of performance test of drainage asphalt pavements, in particular to a texture homogeneity test method of a drainage asphalt pavement.
Background
Whether the construction quality of the asphalt mixture is uniform or not obviously affects the service life and the service level of the asphalt pavement, and the non-uniformity of the asphalt mixture is one of the main reasons for causing early diseases of the asphalt pavement. Therefore, in the construction of asphalt pavement, it is required to effectively control the non-uniformity of asphalt mixture. The method is used for reasonably detecting and evaluating the construction uniformity of the asphalt pavement, is a precondition for ensuring the construction quality of the asphalt pavement, but the construction uniformity is not taken as a detection item in the acceptance link of the asphalt pavement in China. At present, most of related researches aim at evaluating the segregation condition of the asphalt mixture in the construction process, and the detection method, the evaluation standard and the like aiming at the construction uniformity of the asphalt pavement entity engineering lack deep and effective research. The lack of detection indexes for reflecting the construction uniformity of the asphalt pavement in the existing pavement quality acceptance system is an important reason that diseases still appear in the existing asphalt pavement although all detection indexes meet the standard requirements. Therefore, in order to ensure the construction quality of the asphalt pavement, the construction quality uniformity of the asphalt pavement needs to be reasonably evaluated.
Disclosure of Invention
The method can quickly measure the texture homogeneity of the drainage asphalt pavement, can effectively prevent local pits of the drainage asphalt pavement in the construction process through texture homogeneity analysis, can evaluate the damage degree of the drainage asphalt pavement lane load operation, and controls the advanced pre-curing time.
In order to achieve the purpose, the invention adopts the technical scheme that: a method for testing the texture homogeneity of a drainage asphalt pavement is characterized by comprising the following steps:
a. selecting a plane to be measured on the surface of the drainage asphalt road at a certain interval along the direction of a wheel track of a drainage asphalt road lane;
b. weighing mass m of standard paper0Numbering;
c. uniformly coating a pigment on the roller;
d. brushing the surface to be measured of the drainage asphalt road surface in the step a with the roller coated with the pigment in the step b 2;
e. d, attaching the standard paper in the step b to the surface of the plane to be measured of the drainage asphalt pavement coated with the pigment in the step d;
f. weighing the mass m of standard paper attached to the surface of the to-be-measured plane of the drainage asphalt pavement coated with the pigment1；
g. Cutting off the part with pigment on the standard paper and weighing the mass m2；
h. By the formula
And calculating the void ratio VL of the plane to be measured of the drainage asphalt pavement.
i. By the formula
Calculating to obtain the texture homogeneity E of the drainage asphalt pavementL(ii) a Wherein, VL0Is the average value of the void ratio of the plane to be measured, VL, measured in the step hMAXIs the maximum value of the void ratio of the plane to be measured, VL, measured in the step hminAnd h is the minimum value of the void ratio of the plane to be measured in the step h.
Among the above-mentioned scheme, the standard paper is attached on the plane of awaiting measuring on the drainage bituminous paving that the brush has the colouring material, the bellied coarse aggregate part can be attached to the colouring material on the plane of awaiting measuring on the standard paper, cut off the part that has the colouring material on the standard paper, when seeking drainage bituminous paving's void fraction, it can to convert the ratio of the quality that does not have the standard paper of colouring material and the total quality of standard paper of the plane of awaiting measuring through the area to drainage bituminous paving space department and the total area of drainage bituminous paving. The texture homogeneity of the drainage asphalt pavement can be rapidly measured through the obtained data, then the local pit and groove of the drainage asphalt pavement in the construction process can be effectively prevented through the homogeneity analysis of the texture, the damage degree of the lane load operation of the drainage asphalt pavement can be evaluated, and the advanced pre-maintenance opportunity is controlled. The invention has high efficiency, short detection time on the drainage asphalt pavement and capability of completing the following analysis work indoors, thereby shortening the working time on the traffic pavement; moreover, the required equipment is simple and cheap, and the operation mode is simple.
As a further optimization of the above scheme, in step a, the distance between two adjacent selected to-be-measured planes is 5m to 10m, and at least 5 selected to-be-measured planes are provided. The reasonable distance between the planes to be measured of the drainage asphalt pavement and at least 5 planes to be measured can ensure the precision of the texture homogeneity.
As a further optimization of the scheme, the standard paper in the step b is 220g of A4 photo paper per square meter. The A4 photo paper has high hardness and moderate thickness, and is more convenient for weighing and cutting in the subsequent steps when used as standard paper.
As a further optimization of the above scheme, the step c comprises the following steps:
pouring the oily pigment into a small amount of the pan, and repeatedly rolling the pan by the roller to uniformly coat the pigment on the roller. The pigment on the roller is uniformly coated without flowing, so that when the roller is used for brushing the plane to be measured of the drainage asphalt pavement, the pigment can be uniformly coated on the plane to be measured.
As a further optimization of the above scheme, the step d comprises the following steps:
and uniformly brushing a pigment on the surface layer of the coarse aggregate with the height difference of 2-3 mm between the surface to be measured of the drainage asphalt pavement and the bottom of the gap. The accuracy of the measured texture homogeneity can be further ensured
As a further optimization of the above scheme, the step e comprises the following steps:
and sequentially placing a PE foam board and a steel block on the standard paper placed on the surface of the drainage asphalt road surface to be measured, which is coated with the colored materials, and keeping the stable state for 1-2 min. The PE foam board is placed on the standard paper, then the steel block is placed to be weighted, the PE foam board can enable the standard paper to be stressed uniformly, and the PE foam board is kept in a stable state for 1min-2min to enable pigments at the convex parts of the coarse aggregate to be attached to the standard paper.
As a further optimization of the above scheme, the step e further comprises the following steps: further comprising the steps of:
and (3) air-drying the standard paper attached with the pigment on the surface of the plane to be measured of the drainage asphalt road for 2-3 min. The standard paper with the pigment is air-dried, so that the standard paper can be conveniently cut, and interference caused by the symmetrical reproduction of the pigment which is not dried can be avoided.
The invention has the beneficial effects that:
1. the invention has high efficiency, short detection time on the drainage asphalt pavement and capability of completing the following analysis work indoors, thereby shortening the working time on the traffic pavement; the required equipment is simple and cheap, and the operation mode is simple; the local pit grooves of the drainage asphalt pavement in the construction process can be effectively prevented through texture homogeneity analysis of the drainage asphalt pavement, the damage degree of the traffic lane load operation of the drainage asphalt pavement can be evaluated, and the advanced pre-maintenance opportunity is controlled.
2. The reasonable distance between the planes to be measured of the drainage asphalt pavement and at least 5 planes to be measured can ensure the precision of the texture homogeneity.
3. The PE foam board is placed on the standard paper, then the steel block is placed to be weighted, the PE foam board can enable the standard paper to be stressed uniformly, and the PE foam board is kept in a stable state for 1min-2min to enable pigments at the convex parts of the coarse aggregate to be attached to the standard paper.
4. The A4 photo paper has high hardness and moderate thickness, and is more convenient for weighing and cutting in the subsequent steps when used as standard paper.
5. The pigment on the roller is uniformly coated without flowing, so that when the roller is used for brushing the plane to be measured of the drainage asphalt pavement, the pigment can be uniformly coated on the plane to be measured.
6. The PE foam board is placed on the standard paper, then the steel block is placed to be weighted, the PE foam board can enable the standard paper to be stressed uniformly, and the PE foam board is kept in a stable state for 1min-2min to enable pigments at the convex parts of the coarse aggregate to be attached to the standard paper.
7. The standard paper with the pigment is air-dried, so that the standard paper can be conveniently cut, and interference caused by the symmetrical reproduction of the pigment which is not dried can be avoided.
Drawings
FIG. 1 is a flow chart of a method for testing the texture homogeneity of a drainage asphalt pavement according to an embodiment of the present invention.
Detailed Description
Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
Examples
In one embodiment, as shown in fig. 1, a method for testing the texture homogeneity of a drainage asphalt pavement is characterized by comprising the following steps:
a. selecting a plane to be measured on the surface of the drainage asphalt road at a certain interval along the direction of a wheel track of a drainage asphalt road lane;
b. weighing mass m of standard paper0Numbering;
c. uniformly coating a pigment on the roller;
d. brushing the surface to be measured of the drainage asphalt road surface in the step a with the roller coated with the pigment in the step b 2;
e. d, attaching the standard paper in the step b to the surface of the plane to be measured of the drainage asphalt pavement coated with the pigment in the step d;
f. weighing the mass m of standard paper attached to the surface of the to-be-measured plane of the drainage asphalt pavement coated with the pigment1；
g. Cutting off the part with pigment on the standard paper and weighing the mass m2；
h. By the formula
And calculating the void ratio VL of the plane to be measured of the drainage asphalt pavement.
i. By the formula
Calculating to obtain the texture homogeneity E of the drainage asphalt pavementL(ii) a Wherein, VL0Is the average value of the void ratio of the plane to be measured, VL, measured in the step hMAXIs the maximum value of the void ratio of the plane to be measured, VL, measured in the step hminAnd h is the minimum value of the void ratio of the plane to be measured in the step h.
Among the above-mentioned scheme, the standard paper is attached on the plane of awaiting measuring on the drainage bituminous paving that the brush has the colouring material, the bellied coarse aggregate part can be attached to the colouring material on the plane of awaiting measuring on the standard paper, cut off the part that has the colouring material on the standard paper, when seeking drainage bituminous paving's void fraction, it can to convert the ratio of the quality that does not have the standard paper of colouring material and the total quality of standard paper of the plane of awaiting measuring through the area to drainage bituminous paving space department and the total area of drainage bituminous paving. The texture homogeneity of the drainage asphalt pavement can be rapidly measured through the obtained data, then the local pit and groove of the drainage asphalt pavement in the construction process can be effectively prevented through the homogeneity analysis of the texture, the damage degree of the lane load operation of the drainage asphalt pavement can be evaluated, and the advanced pre-maintenance opportunity is controlled. The invention has high efficiency, short detection time on the drainage asphalt pavement and capability of completing the following analysis work indoors, thereby shortening the working time on the traffic pavement; moreover, the required equipment is simple and cheap, and the operation mode is simple.
In another embodiment, in step a, the distance between two adjacent selected planes to be measured is 8m, and the number of the selected planes to be measured is 8.
In another embodiment, in step a, the distance between two adjacent selected planes to be measured is 5m, and the number of the selected planes to be measured is 5.
In another embodiment, in step a, the distance between two adjacent selected planes to be measured is 10m, and the number of the selected planes to be measured is 10.
The reasonable distance between the planes to be measured of the drainage asphalt pavement and at least 5 planes to be measured can ensure the precision of the texture homogeneity.
In another embodiment, the standard paper in step b is 220g of A4 photo paper per square meter. The A4 photo paper has high hardness and moderate thickness, and is more convenient for weighing and cutting in the subsequent steps when used as standard paper.
In another embodiment, the step c comprises the steps of:
pouring the oily pigment into a small amount of the pan, and repeatedly rolling the pan by the roller to uniformly coat the pigment on the roller. The pigment on the roller is uniformly coated without flowing, so that when the roller is used for brushing the plane to be measured of the drainage asphalt pavement, the pigment can be uniformly coated on the plane to be measured.
In another embodiment, the step d comprises the steps of:
and uniformly brushing a pigment on the surface layer of the coarse aggregate with the height difference of 2-3 mm between the surface to be measured of the drainage asphalt pavement and the bottom of the gap. The accuracy of the measured texture homogeneity can be further ensured
In another embodiment, the step e comprises the steps of:
and sequentially placing a PE foam board and a steel block on the standard paper placed on the surface of the drainage asphalt road to be measured, which is coated with the colored materials, and keeping the stable state for 1.5 min.
And sequentially placing a PE foam board and a steel block on the standard paper placed on the surface of the drainage asphalt road to be measured, which is coated with the colored materials, and keeping the stable state for 1 min.
And sequentially placing a PE foam board and a steel block on the standard paper placed on the surface of the drainage asphalt road to be measured, which is coated with the colored materials, and keeping the stable state for 2 min.
The PE foam board is placed on the standard paper, then the steel block is placed to be weighted, the PE foam board can enable the standard paper to be stressed uniformly, and the PE foam board is kept in a stable state for 1min-2min to enable pigments at the convex parts of the coarse aggregate to be attached to the standard paper.
As a further optimization of the above scheme, the step e further comprises the following steps: further comprising the steps of:
and (3) air-drying the standard paper on the surface of the plane to be measured of the drainage asphalt road with the pigment for 2.5 min.
And (3) air-drying the standard paper on the surface of the plane to be measured of the drainage asphalt road with the pigment for 2 min.
And (3) air-drying the standard paper on the surface of the plane to be measured of the drainage asphalt road with the pigment for 3 min.
The standard paper with the pigment is air-dried, so that the standard paper can be conveniently cut, and interference caused by the symmetrical reproduction of the pigment which is not dried can be avoided.
The above-mentioned embodiments only express the specific embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention.
Claims (3)
1. A method for testing the texture homogeneity of a drainage asphalt pavement is characterized by comprising the following steps:
a. selecting a plane to be measured on the surface of the drainage asphalt road at a certain interval along the direction of a wheel track of a drainage asphalt road lane;
b. weighing mass m of standard paper0Numbering;
c. uniformly coating a pigment on the roller;
d. c, coating a color material on the surface to be measured of the drainage asphalt road surface in the step a by using the roller coated with the color material in the step c;
e. d, attaching the standard paper in the step b to the surface of the plane to be measured of the drainage asphalt pavement coated with the pigment in the step d;
f. weighing the mass m of standard paper attached to the surface of the to-be-measured plane of the drainage asphalt pavement coated with the pigment1；
g. Cutting off the part with pigment on the standard paper and weighing the mass m2；
h. By the formula
Calculating the void ratio VL of the plane to be measured of the drainage asphalt pavement;
i. by the formula
Calculating to obtain the texture homogeneity E of the drainage asphalt pavementL(ii) a Wherein, VL0Is the average value of the void ratio of the plane to be measured, VL, measured in the step hMAXIs the maximum value of the void ratio of the plane to be measured, VL, measured in the step hminThe minimum value of the void ratio of the plane to be measured is measured in the step h;
the standard paper in the step b is 220g of A4 photo paper per square meter;
the step d comprises the following steps:
uniformly brushing a pigment on the surface layer of the coarse aggregate with the height difference of 2-3 mm between the surface to be measured of the drainage asphalt pavement and the bottom of the gap;
the step e comprises the following steps:
sequentially placing a PE foam board and a steel block on standard paper placed on the surface of the drainage asphalt road surface to be measured, which is coated with the colored materials, and keeping the stable state for 1-2 min;
the step e further comprises the following steps:
and (3) air-drying the standard paper attached with the pigment on the surface of the plane to be measured of the drainage asphalt road for 2-3 min.
2. The method for testing the texture homogeneity of a drainage asphalt pavement according to claim 1, wherein in the step a, the distance between two adjacent planes to be tested is selected to be 5m to 10m, and at least 5 planes to be tested are selected.
3. The method for testing the texture homogeneity of a drainage asphalt pavement according to claim 1, wherein the step c comprises the steps of:
pouring the oily pigment into a small amount of the pan, and repeatedly rolling the pan by the roller to uniformly coat the pigment on the roller.
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| CN201810136857.4A CN108411747B (en) | 2018-02-09 | 2018-02-09 | Texture homogeneity test method for drainage asphalt pavement |
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| CN108411747B true CN108411747B (en) | 2021-04-06 |
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| CN112067475A (en) * | 2020-07-22 | 2020-12-11 | 四川科路泰交通科技有限公司 | Method for testing high-temperature performance of drainage asphalt mixture |
| CN112067456A (en) * | 2020-07-22 | 2020-12-11 | 四川科路泰交通科技有限公司 | High-viscosity modified asphalt mortar test method |
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| CN106023233A (en) * | 2016-06-08 | 2016-10-12 | 河海大学 | Method for evaluating macroscopic texture on vertical two directions of large-gap asphalt mixture |
| CN107036933A (en) * | 2017-04-20 | 2017-08-11 | 阜阳师范学院 | A kind of effecting HMA compaction uniformity becomes more meticulous methods of testing and evaluating |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7454972B2 (en) * | 2005-09-07 | 2008-11-25 | Luna Innovations Incorporated | Method and apparatus for acoustically weighing moving loads |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101004370A (en) * | 2007-01-26 | 2007-07-25 | 中国建筑工程总公司 | Method for detecting surface porosity and test block section porosity of pervious concrete pavement |
| CN204188491U (en) * | 2014-10-10 | 2015-03-04 | 天津市市政工程设计研究院 | A kind of porous pavement voidage test data collector |
| CN105092451A (en) * | 2015-08-13 | 2015-11-25 | 大连海事大学 | Method for predicting void ratio of asphalt mixture |
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