CN111257545A - Macroscopic texture testing method for sand grain type large-gap asphalt concrete - Google Patents
Macroscopic texture testing method for sand grain type large-gap asphalt concrete Download PDFInfo
- Publication number
- CN111257545A CN111257545A CN202010158761.5A CN202010158761A CN111257545A CN 111257545 A CN111257545 A CN 111257545A CN 202010158761 A CN202010158761 A CN 202010158761A CN 111257545 A CN111257545 A CN 111257545A
- Authority
- CN
- China
- Prior art keywords
- cement mortar
- asphalt concrete
- test piece
- type large
- sand
- 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.)
- Pending
Links
- 238000012360 testing method Methods 0.000 title claims abstract description 108
- 239000011384 asphalt concrete Substances 0.000 title claims abstract description 70
- 239000004576 sand Substances 0.000 title claims abstract description 67
- 239000011083 cement mortar Substances 0.000 claims abstract description 77
- 239000002131 composite material Substances 0.000 claims abstract description 8
- 238000011049 filling Methods 0.000 claims abstract description 6
- 238000007790 scraping Methods 0.000 claims abstract description 6
- 239000002245 particle Substances 0.000 claims abstract description 5
- 239000004568 cement Substances 0.000 claims description 19
- 238000010998 test method Methods 0.000 claims description 14
- 238000002156 mixing Methods 0.000 claims description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 12
- 238000000034 method Methods 0.000 claims description 10
- 239000004567 concrete Substances 0.000 claims description 6
- 238000005303 weighing Methods 0.000 claims description 5
- 239000002390 adhesive tape Substances 0.000 claims description 4
- 239000003638 chemical reducing agent Substances 0.000 claims description 4
- 239000003795 chemical substances by application Substances 0.000 claims description 4
- 230000008961 swelling Effects 0.000 claims description 4
- 238000005553 drilling Methods 0.000 abstract description 5
- 239000000243 solution Substances 0.000 description 51
- 239000010426 asphalt Substances 0.000 description 14
- 239000000203 mixture Substances 0.000 description 8
- 238000005096 rolling process Methods 0.000 description 6
- 238000003756 stirring Methods 0.000 description 6
- 238000011156 evaluation Methods 0.000 description 5
- 238000005259 measurement Methods 0.000 description 5
- 238000001514 detection method Methods 0.000 description 4
- 238000013461 design Methods 0.000 description 3
- 229910052500 inorganic mineral Inorganic materials 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000011707 mineral Substances 0.000 description 3
- 238000005457 optimization Methods 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- 239000004575 stone Substances 0.000 description 3
- 229920002522 Wood fibre Polymers 0.000 description 2
- 238000011068 loading method Methods 0.000 description 2
- 239000003607 modifier Substances 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 238000012216 screening Methods 0.000 description 2
- 239000002025 wood fiber Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
- 239000011800 void material Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/38—Concrete; Lime; Mortar; Gypsum; Bricks; Ceramics; Glass
- G01N33/383—Concrete or cement
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/04—Devices for withdrawing samples in the solid state, e.g. by cutting
- G01N1/08—Devices for withdrawing samples in the solid state, e.g. by cutting involving an extracting tool, e.g. core bit
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/42—Road-making materials
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Physics & Mathematics (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Medicinal Chemistry (AREA)
- Ceramic Engineering (AREA)
- Road Paving Structures (AREA)
Abstract
The invention discloses a macroscopic texture testing method of sand grain type large-gap asphalt concrete, which comprises the following steps: forming a composite track plate test piece with a lower layer of dense-graded asphalt concrete and an upper layer of sand grain type large-gap asphalt concrete, drilling a standard test piece from the track plate test piece, and performing anti-leakage treatment on the side surface of the standard test piece; preparing a cement mortar solution with the fluidity of less than or equal to 14s by using standard sand with the particle size of less than or equal to 0.3mm, pouring the cement mortar solution on the surface of a standard test piece, scraping off the excess cement mortar solution on the surface after the cement mortar solution fills the sand type large-gap asphalt concrete gap on the upper part, and measuring the filling volume of the cement mortar solution in the standard test piece; and characterizing the macro texture of the sand grain type large-gap asphalt concrete by using the ratio of the pouring volume to the cross-sectional area of the standard test piece. Compared with the prior art, the invention can conveniently and accurately measure the macro texture of the sand grain type large-gap asphalt concrete indoors.
Description
Technical Field
The invention relates to the technical field of highway maintenance, in particular to a macro texture testing method of sand grain type large-gap asphalt concrete.
Background
With the deepening of the concept of a sponge city, the large-gap asphalt concrete with the drainage function is popularized and applied on a large scale in a large scale, and the paving thickness of the commonly used fine-grain large-gap asphalt concrete is generally 4 cm. In recent years, in order to save the engineering cost of the drainage function layer, the sand grain type large-gap asphalt concrete (the nominal maximum grain size is not more than 10mm) with the paving thickness of not more than 2cm is also researched and applied, the paving thickness of the sand grain type large-gap asphalt concrete is thinner than that of the fine grain type large-gap asphalt concrete, the thinner thickness reduces the cost, but also reduces the functional characteristics, particularly the capability of reducing a water film in rainy days, and the capability of reducing the water film in the drainage function layer and the anti-skid performance of the drainage function layer are closely related to the surface macro texture of the drainage function layer.
The test method for detecting the anti-skid performance of the pavement according to the current standard JTGE 60-2008 'on-site test regulations for roadbed and pavement of highway' in China is mainly divided into two categories, namely pavement structure depth detection and pavement friction coefficient detection. Wherein, road surface structure degree of depth is the average depth of road surface unevenness's opening hole, not only characterizes the roughness and the cling compound performance of road list, still the important index of road list drainage performance, and at present, road surface structure degree of depth detection method includes: manual sanding method determination, electric sanding method determination, vehicle-mounted laser structure depth determination and the like. Because the large-gap asphalt concrete has large gaps, sand can permeate into the gaps when a sand paving method is adopted, but the gaps cannot be completely filled, so that the method cannot accurately evaluate the macroscopic texture of the large-gap asphalt concrete, particularly sand grain type large-gap asphalt concrete; the vehicle-mounted laser structure depth measuring instrument in the measuring method of the vehicle-mounted laser structure depth measuring instrument is expensive and high in measuring cost, and the method is not suitable for indoor evaluation. Therefore, the prior art evaluation of the macro texture of sand-type large-void asphalt concrete is obviously insufficient.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide a method for testing the macro texture of the sand grain type large-gap asphalt concrete, which can conveniently and accurately measure the macro texture of the sand grain type large-gap asphalt concrete indoors, is more suitable for detecting the construction depth of a sand grain type large-gap asphalt concrete pavement and provides a foundation for the subsequent optimization of the mix proportion design and the evaluation of the macro texture.
The invention specifically adopts the following technical scheme to solve the technical problems:
a macro texture testing method of sand grain type large-gap asphalt concrete is characterized in that a composite track plate test piece with a lower layer of dense-graded asphalt concrete and an upper layer of sand grain type large-gap asphalt concrete is formed, a standard test piece is drilled from the track plate test piece, and anti-leakage treatment is carried out on the side surface of the standard test piece; preparing a cement mortar solution with the fluidity of less than or equal to 14s by using standard sand with the particle size of less than or equal to 0.3mm, pouring the cement mortar solution on the surface of a standard test piece, scraping off the excess cement mortar solution on the surface after the cement mortar solution fills the sand type large-gap asphalt concrete gap on the upper part, and measuring the filling volume of the cement mortar solution in the standard test piece; and characterizing the macro texture of the sand grain type large-gap asphalt concrete by using the ratio of the pouring volume to the cross-sectional area of the standard test piece.
Preferably, the grain size of the standard sand used by the cement mortar solution is more than or equal to 0.15 mm.
Preferably, the cement mortar solution comprises the following components in parts by weight: cement: swelling agent: water reducing agent: sand: 56.8 parts of water: 4.2: 0.1: 8.9: 30.0.
further, the stability index of the cement mortar solution is not less than 90 percent; the test method of the stability index is as follows: testing the inverted cone of fluidity of cement mortar by using a test method of road engineering cement and cement concrete test procedure (JTG E30-2005) T0508-2005, pouring 500ml of cement mortar solution into the inverted cone, standing for 5min, loosening the plug, releasing 200ml of cement mortar solution into the measuring cylinders twice, weighing the mass of the cement mortar solution in two measuring cylinders, wherein the mass of the cement mortar solution in each measuring cylinder is m1And m2When the stability index W is equal to (m)1/m2)×100％。
Preferably, the fluidity of the cement mortar solution is tested using the test method T0508-2005 of the test protocols for road engineering cements and cement concretes (JTGE 30-2005).
Preferably, the standard test piece is a cylindrical standard test piece.
Further preferably, the diameter of the cylindrical standard test piece is 150 mm.
Preferably, the anti-leakage treatment specifically comprises: and wrapping the side surface of the standard test piece by using a waterproof adhesive tape.
Preferably, the pouring volume of the cement mortar solution in the standard test piece is measured as follows: and measuring the mass difference value of the standard test piece before and after the cement mortar solution is poured, and then measuring the volume of the cement mortar solution with the mass corresponding to the mass difference value by using a measuring container, namely the pouring volume of the cement mortar solution in the standard test piece.
Preferably, a gravel seal layer is further arranged between the lower dense-graded asphalt concrete layer and the upper sand grain type large-gap asphalt concrete layer of the composite rut plate test piece.
Compared with the prior art, the technical scheme of the invention has the following beneficial effects:
aiming at the problem that the prior art is difficult to accurately measure the macro texture of a large-gap asphalt concrete (especially sand-type large-gap asphalt concrete) pavement, the invention utilizes cement mortar solution with special cement and standard sand and good fluidity to carry out pouring-type measurement, can conveniently and accurately carry out indoor measurement on the macro texture of the sand-type large-gap asphalt concrete, is more suitable for the structure depth detection of the sand-type large-gap asphalt concrete pavement, and provides a foundation for the subsequent optimization of the mix proportion design and the evaluation of the macro texture.
Detailed Description
Aiming at the problem that the prior art is difficult to accurately measure the macro texture of a large-gap asphalt concrete (especially sand grain type large-gap asphalt concrete) pavement, the invention solves the idea that a cement mortar solution with good flowability specially made by cement and standard sand is used for pouring measurement, thereby conveniently and accurately measuring the macro texture of the sand grain type large-gap asphalt concrete indoors.
The invention provides a macroscopic texture testing method of sand grain type large-gap asphalt concrete, which comprises the following specific steps:
forming a composite track plate test piece with a lower layer of dense-graded asphalt concrete and an upper layer of sand grain type large-gap asphalt concrete, drilling a standard test piece from the track plate test piece, and performing anti-leakage treatment on the side surface of the standard test piece; preparing a cement mortar solution with the fluidity of less than or equal to 14s by using standard sand with the particle size of less than or equal to 0.3mm, pouring the cement mortar solution on the surface of a standard test piece, scraping off the excess cement mortar solution on the surface after the cement mortar solution fills the sand type large-gap asphalt concrete gap on the upper part, and measuring the filling volume of the cement mortar solution in the standard test piece; and characterizing the macro texture of the sand grain type large-gap asphalt concrete by using the ratio of the pouring volume to the cross-sectional area of the standard test piece.
In order to further improve the discrimination of materials with different macro texture characteristics, the grain size of the standard sand used by the cement mortar solution is preferably more than or equal to 0.15 mm.
Preferably, the cement mortar solution comprises the following components in parts by weight: cement: swelling agent: water reducing agent: sand: 56.8 parts of water: 4.2: 0.1: 8.9: 30.0 of the total weight of the mixture; the fluidity of the cement mortar solution can be controlled to be about 12.5s by adopting the mixing proportion.
The fluidity of cement mortar is related to the water cement ratio thereof, the larger the water cement ratio is, the larger the fluidity is, but the poorer the stability is, therefore, in order to prevent the test error caused by the layering phenomenon in the test process, the stability of the cement mortar solution needs to be limited, for this reason, the invention further provides a test method for the stability index of the cement mortar solution, and the stability index of the cement mortar solution is required to be not less than 90%, and the specific is as follows: testing the inverted cone of the fluidity of the cement mortar by adopting a test method of road engineering cement and cement concrete test procedure (JTG E30-2005) T0508-2005, pouring 500ml of cement mortar solution into the inverted cone, standing for 5min, loosening the plug, and releasing 200ml of the cement mortar solution to the required amount twiceIn the cylinder, the mass of the cement mortar solution in two measuring cylinders is m1And m2When the stability index W is equal to (m)1/m2) X 100%. By adopting the scheme, the cement mortar can be ensured not to be layered in the test process.
Preferably, the fluidity of the cement mortar solution is tested using the test method T0508-2005 of the test protocols for road engineering cements and cement concretes (JTGE 30-2005).
The standard test piece can be cubic, cylindrical and the like, and is preferably cylindrical for core drilling and sampling. Further preferably, the diameter of the cylindrical standard test piece is 150 mm.
Preferably, the anti-leakage treatment specifically comprises: and wrapping the side surface of the standard test piece by using a waterproof adhesive tape.
Preferably, the pouring volume of the cement mortar solution in the standard test piece is measured as follows: and measuring the mass difference value of the standard test piece before and after the cement mortar solution is poured, and then measuring the volume of the cement mortar solution with the mass corresponding to the mass difference value by using a measuring container, namely the pouring volume of the cement mortar solution in the standard test piece.
Preferably, a gravel seal layer is further arranged between the lower dense-graded asphalt concrete layer and the upper sand grain type large-gap asphalt concrete layer of the composite rut plate test piece.
For the understanding of the public, the technical solution of the present invention is further described in detail by a specific embodiment as follows:
step 1, preparing a sand grain type large-gap asphalt concrete composite track plate test piece:
in this embodiment, a standard rutting plate test piece of an asphalt mixture is prepared according to the road engineering asphalt and asphalt mixture test specification (JTG E20-2011), and a SMA-13 graded rutting plate is formed first, where the grading is as follows: 1# basalt aggregate: 2# basalt aggregate: 4# basalt aggregate: mineral powder: wood fiber 42%: 33%: 15%: 10%: 0.3 percent and the oil-stone ratio is 6 percent; forming a layer of broken stone seal layer on the upper surface, and forming an upper structure by sand type large-gap asphalt concrete grading, wherein the sand type large-gap asphalt concrete grading is as follows: 3# basalt aggregate: 4# basalt aggregate: 85% of mineral powder: 10%: 5 percent, the dosage of SBS modified asphalt is 5.4 percent, and the preparation steps are as follows:
a) putting required basalt aggregate (1# basalt aggregate) with the grain size of 9.5-13.2 mm, basalt aggregate (2# 2) with the grain size of 4.75-9.5 mm and basalt aggregate (4# 4) with the grain size of 0-2.36 mm into an oven to be heated for 4 hours, and putting SBS modified asphalt into the oven to be heated for 2 hours;
b) and adding the well-cooled basalt aggregate into the stirring pot, adding the direct vat type HVA modifier into the stirring pot, and stirring for 90 s.
c) Putting the required wood fiber into a mixing pot, mixing for 60s, then pouring SBS modified asphalt with required quality into the mixing pot, and mixing for 90 s;
d) directly loading the asphalt mixture in the mixing pot into a track plate test piece forming die, forming on a track plate test piece forming machine, rolling in one direction for 2 times to and fro (4 times), unloading, lifting a rolling wheel, turning the test piece, and then rolling to a position with 100% +/-1% of Marshall standard compactness by the same load;
e) and (3) placing the formed rut plate test piece and the test mold for 24 hours at room temperature, and then demolding.
f) Forming an asphalt thin plate according to the using amount of the gravel seal asphalt, paving the asphalt thin plate on a formed track plate with SMA-13 gradation, and spreading gravel according to the using amount of the gravel;
g) putting required basalt aggregate (3# basalt aggregate) with the grain size of 2.36-4.75 mm, basalt aggregate (4# basalt aggregate) with the grain size of 0-2.36 mm and mineral powder into an oven to be heated for 4 hours, and putting SBS modified asphalt into the oven to be heated for 2 hours;
h) and pouring the heated basalt aggregate into the mixing pot, adding the direct vat type HVA modifier into the mixing pot, and mixing for 90 seconds.
i) Adding SBS modified asphalt into the mixing pot according to the required asphalt dosage, and mixing for 90 s;
j) directly loading the asphalt mixture in a stirring pot into a rutting plate test piece forming machine in a rutting plate test piece forming die which takes SMA-13 as gradation and is formed with a crushed stone seal rutting plate test piece, forming, rolling 2 times back and forth (4 times) in one direction, unloading, lifting a rolling wheel, turning the test piece, and rolling to a position with the Marshall standard compactness of 100% +/-1% under the same load;
k) and (3) placing the formed rut plate test piece and the test mold for 24 hours at room temperature, and then demolding.
And 2, drilling two identical cylindrical test pieces, namely a test piece 1 and a test piece 2 on the rut plate test piece by using a core drilling sampler with the diameter of 150mm, and measuring the diameter D of the test piece in mm.
Step 3, wrapping the side surfaces of the two cylindrical test pieces by using waterproof adhesive tapes until the side surfaces of the two cylindrical test pieces are flush with the upper surfaces of the cylindrical test pieces, and weighing the mass M of the wrapped cylindrical test pieces1In units of g.
And 4, screening the standard sand with the particle size of 0.15-0.3 mm, screening by using a 0.15mm standard sieve and a 0.3mm standard sieve, selecting a part under the 0.3mm standard sieve and a part over the 0.15 standard sieve, and mixing the materials according to the following ratio: swelling agent: water reducing agent: sand: 56.8 parts of water: 4.2: 0.1: 8.9: 30.0, the fluidity of the obtained cement mortar is 12.5s, and the stability is more than 90 percent; and fully stirring the cement mortar solution after the preparation is finished, so that the solution is uniformly distributed.
Step 5, pouring the uniformly stirred cement mortar solution on the two cylindrical test pieces respectively, lightly knocking the side edges of the test pieces to enable the cement mortar solution to fill the sand type large-gap asphalt concrete gaps at the upper parts, standing for 15min, scraping off the excessive cement mortar solution on the surfaces of the test pieces by using a scraping ruler, and weighing the mass M of the test pieces after the cement mortar solution is poured2And calculating to obtain the filling quality of the cement mortar solution in the test piece: m2-M1In units of g.
Step 6, uniformly stirring the cement mortar solution, and weighing the cement mortar solution with the mass M by using a measuring cylinder2-M1And reading the volume V of the cement mortar solution in ml.
Step 7, representing the macro texture of the sand grain type large-gap asphalt concrete by using the ratio of the injection volume V of the cement mortar solution to the cross-sectional area of the test piece, wherein the macro texture of the sand grain type large-gap asphalt concrete is specifically calculated according to the following formula:
in the formula: t is the macroscopic texture of the sand grain type large-gap asphalt concrete, and the unit is mm;
v is the filling volume of the mortar in the sand grain type large-gap asphalt concrete, and the unit is ml;
d is the diameter of the cylindrical large-gap sand grain type asphalt concrete test piece, and the unit is mm.
And 8, evaluating the macro texture of the sand grain type large-gap asphalt concrete based on the average value of the macro textures measured by the two test pieces.
The invention adopts the special cement mortar solution with both fluidity and stability to carry out the pouring type measurement, has stronger discrimination on the sand grain type large-gap asphalt concrete materials with different macroscopic texture characteristics, and can conveniently and accurately carry out indoor measurement on the macroscopic texture of the sand grain type large-gap asphalt concrete, thereby providing a foundation for the subsequent optimization of the mix proportion design and the evaluation of the macroscopic texture.
Claims (10)
1. A macroscopic texture testing method of sand grain type large-gap asphalt concrete is characterized in that a composite track plate test piece with a lower layer of dense-graded asphalt concrete and an upper layer of sand grain type large-gap asphalt concrete is formed, a standard test piece is drilled from the track plate test piece, and the side surface of the standard test piece is subjected to anti-leakage treatment; preparing a cement mortar solution with the fluidity of less than or equal to 14s by using standard sand with the particle size of less than or equal to 0.3mm, pouring the cement mortar solution on the surface of a standard test piece, scraping off the excess cement mortar solution on the surface after the cement mortar solution fills the sand type large-gap asphalt concrete gap on the upper part, and measuring the filling volume of the cement mortar solution in the standard test piece; and characterizing the macro texture of the sand grain type large-gap asphalt concrete by using the ratio of the pouring volume to the cross-sectional area of the standard test piece.
2. The macro texture testing method of sand grain type large-gap asphalt concrete according to claim 1, wherein the grain size of standard sand used in the cement mortar solution is not less than 0.15 mm.
3. The macro texture testing method of sand grain type large-gap asphalt concrete according to claim 1, wherein the cement mortar solution is prepared by mixing the following components in parts by weight: cement: swelling agent: water reducing agent: sand: water = 56.8: 4.2: 0.1: 8.9: 30.0.
4. the macro texture testing method of sand type large gap asphalt concrete according to claim 1, wherein the stability index of the cement mortar solution is not less than 90%; the test method of the stability index is as follows: testing the inverted cone of fluidity of cement mortar by using a test method of road engineering cement and cement concrete test procedure (JTG E30-2005) T0508-2005, pouring 500ml of cement mortar solution into the inverted cone, standing for 5min, loosening the plug, releasing 200ml of cement mortar solution into the measuring cylinders twice, weighing the mass of the cement mortar solution in two measuring cylinders, wherein the mass of the cement mortar solution in each measuring cylinder is m1And m2Then the stability index W = (m)1/m2）×100%。
5. The macrostructure test method for sand-type large-gap asphalt concrete according to claim 1, wherein the fluidity of the cement mortar solution is tested by using the test method of T0508-2005 in test Specification for Highway engineering Cement and Cement concrete (JTG E30-2005).
6. The macro texture testing method for sand grain type large-gap asphalt concrete according to claim 1, wherein the standard test piece is a cylindrical standard test piece.
7. The macro texture testing method of sand grain type large-gap asphalt concrete according to claim 6, wherein the diameter of the cylindrical standard test piece is 150 mm.
8. The macro texture testing method of sand grain type large-gap asphalt concrete according to claim 1, wherein the anti-leakage treatment is specifically: and wrapping the side surface of the standard test piece by using a waterproof adhesive tape.
9. The macro texture testing method of sand grain type large gap asphalt concrete according to claim 1, wherein the poured volume of cement mortar solution in the standard test piece is measured according to the following method: and measuring the mass difference value of the standard test piece before and after the cement mortar solution is poured, and then measuring the volume of the cement mortar solution with the mass corresponding to the mass difference value by using a measuring container, namely the pouring volume of the cement mortar solution in the standard test piece.
10. The macro texture testing method of sand grain type large-gap asphalt concrete according to claim 1, characterized in that a gravel seal layer is further arranged between the lower layer dense-graded asphalt concrete and the upper layer sand grain type large-gap asphalt concrete of the composite rut plate test piece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010158761.5A CN111257545A (en) | 2020-03-09 | 2020-03-09 | Macroscopic texture testing method for sand grain type large-gap asphalt concrete |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010158761.5A CN111257545A (en) | 2020-03-09 | 2020-03-09 | Macroscopic texture testing method for sand grain type large-gap asphalt concrete |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111257545A true CN111257545A (en) | 2020-06-09 |
Family
ID=70944752
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010158761.5A Pending CN111257545A (en) | 2020-03-09 | 2020-03-09 | Macroscopic texture testing method for sand grain type large-gap asphalt concrete |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111257545A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112030656A (en) * | 2020-08-24 | 2020-12-04 | 南京林业大学 | Asphalt usage amount determination method for gravel seal in embedded ultra-thin wearing layer |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101477110A (en) * | 2009-01-21 | 2009-07-08 | 交通部公路科学研究所 | Asphalt mixture construction depth and its durability indoor detection method |
| CN101477019A (en) * | 2009-01-22 | 2009-07-08 | 交通部公路科学研究所 | Asphalt mixture bulk density measuring method based on construction depth |
| CN101936858A (en) * | 2010-08-23 | 2011-01-05 | 长安大学 | Macroscopic and microscopic texture reconstruction indoor test method for cement concrete pavement |
| CN104775349A (en) * | 2015-02-15 | 2015-07-15 | 云南省交通规划设计研究院 | Tester and measuring method for structural depth of large-porosity drainage asphalt pavement |
| CN105714659A (en) * | 2016-03-04 | 2016-06-29 | 贵州省交通规划勘察设计研究院股份有限公司 | Method for determining pavement structural depth by means of iron-containing particles |
| 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 |
| CN110412254A (en) * | 2019-08-12 | 2019-11-05 | 浙江省交通运输科学研究院 | A kind of half-flexible pavement estimates the test method of residual air voids |
-
2020
- 2020-03-09 CN CN202010158761.5A patent/CN111257545A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101477110A (en) * | 2009-01-21 | 2009-07-08 | 交通部公路科学研究所 | Asphalt mixture construction depth and its durability indoor detection method |
| CN101477019A (en) * | 2009-01-22 | 2009-07-08 | 交通部公路科学研究所 | Asphalt mixture bulk density measuring method based on construction depth |
| CN101936858A (en) * | 2010-08-23 | 2011-01-05 | 长安大学 | Macroscopic and microscopic texture reconstruction indoor test method for cement concrete pavement |
| CN104775349A (en) * | 2015-02-15 | 2015-07-15 | 云南省交通规划设计研究院 | Tester and measuring method for structural depth of large-porosity drainage asphalt pavement |
| CN105714659A (en) * | 2016-03-04 | 2016-06-29 | 贵州省交通规划勘察设计研究院股份有限公司 | Method for determining pavement structural depth by means of iron-containing particles |
| 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 |
| CN110412254A (en) * | 2019-08-12 | 2019-11-05 | 浙江省交通运输科学研究院 | A kind of half-flexible pavement estimates the test method of residual air voids |
Non-Patent Citations (1)
| Title |
|---|
| 张毓: "基于集料表面纹理构造特征的沥青路面抗滑机理研究", 《中国优秀硕士学位论文全文数据库（电子期刊）》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112030656A (en) * | 2020-08-24 | 2020-12-04 | 南京林业大学 | Asphalt usage amount determination method for gravel seal in embedded ultra-thin wearing layer |
| CN112030656B (en) * | 2020-08-24 | 2022-03-08 | 南京林业大学 | Asphalt usage amount determination method for gravel seal in embedded ultra-thin wearing layer |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Lu et al. | Experimental study on the polyurethane-bound pervious mixtures in the application of permeable pavements | |
| Joshaghani et al. | Optimizing pervious concrete pavement mixture design by using the Taguchi method | |
| Bonicelli et al. | Experimental study on the effects of fine sand addition on differentially compacted pervious concrete | |
| JP3280847B2 (en) | Permeable concrete pavement method | |
| Kandhal et al. | Design of New-Generation Open-Graded Friction Courses (Revised) | |
| CN106874692B (en) | Celluar concrete mixing proportion design method | |
| CN106294973A (en) | A kind of mixing proportion design method of celluar concrete | |
| CN106431145B (en) | cement stable macadam mixture design method | |
| CN106227976A (en) | A kind of laboratory mixing proportion design method of permeable regenerated aggregate concrete | |
| Cai et al. | A novel approach to evaluate the clogging resistance of pervious concrete | |
| CN108646006B (en) | Method for determining cement stabilized macadam drying shrinkage coefficient | |
| CN111965071A (en) | Method for determining aggregate proportion of sand grain type asphalt concrete | |
| CN111380778A (en) | On-site relative density testing method for soil material | |
| CN111257545A (en) | Macroscopic texture testing method for sand grain type large-gap asphalt concrete | |
| CN112878154A (en) | Method for detecting thickness of asphalt composite gravel seal layer based on ground penetrating radar | |
| Sun et al. | Study on deformation behavior and prediction model of asphalt mixture based on interface-slip characteristics of aggregates | |
| WO2011079676A1 (en) | Construction method for supporting layer of double-block ballastless track | |
| CN116046538A (en) | Performance test method of pavement material | |
| CN107059530A (en) | A kind of thick-layer paves the big space Emulsified Asphalt Mixture road surface of cold mixing and its construction technology | |
| CN110714386A (en) | Long-life semi-flexible base pavement structure and construction method thereof | |
| Daghigh et al. | Effect of curing time and percentage of additive materials on unconfined compressive strength and California bearing ratio in sandy silt soil | |
| CN114315261A (en) | Polymer repair mortar for quickly repairing pavement and preparation method thereof | |
| CN113820250A (en) | Method for measuring penetration depth of penetrating layer oil into semi-rigid base layer | |
| Avinash et al. | Study on strength characteristics of pervious concrete using mineral admixtures | |
| Wang et al. | A novel approach to characterize entrained air content in pervious concrete |
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 | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200609 |
|
| RJ01 | Rejection of invention patent application after publication |