CN112730200A - Waterproof sealing material for asphalt pavement water seepage test and preparation method thereof - Google Patents
Waterproof sealing material for asphalt pavement water seepage test and preparation method thereof Download PDFInfo
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- CN112730200A CN112730200A CN202110143169.2A CN202110143169A CN112730200A CN 112730200 A CN112730200 A CN 112730200A CN 202110143169 A CN202110143169 A CN 202110143169A CN 112730200 A CN112730200 A CN 112730200A
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- 239000003566 sealing material Substances 0.000 title claims abstract description 104
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 78
- 239000010426 asphalt Substances 0.000 title claims abstract description 64
- 238000002360 preparation method Methods 0.000 title claims abstract description 24
- 238000010998 test method Methods 0.000 title description 3
- 238000012360 testing method Methods 0.000 claims abstract description 73
- 239000000203 mixture Substances 0.000 claims abstract description 38
- 239000000843 powder Substances 0.000 claims abstract description 28
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 claims description 48
- 238000003756 stirring Methods 0.000 claims description 40
- 238000002156 mixing Methods 0.000 claims description 32
- 230000001050 lubricating effect Effects 0.000 claims description 20
- 239000004519 grease Substances 0.000 claims description 17
- 229940099259 vaseline Drugs 0.000 claims description 16
- 235000019738 Limestone Nutrition 0.000 claims description 11
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims description 11
- FPAFDBFIGPHWGO-UHFFFAOYSA-N dioxosilane;oxomagnesium;hydrate Chemical compound O.[Mg]=O.[Mg]=O.[Mg]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O FPAFDBFIGPHWGO-UHFFFAOYSA-N 0.000 claims description 11
- 230000002209 hydrophobic effect Effects 0.000 claims description 11
- 239000006028 limestone Substances 0.000 claims description 11
- 229910052744 lithium Inorganic materials 0.000 claims description 11
- 238000000034 method Methods 0.000 claims description 5
- 238000007789 sealing Methods 0.000 abstract description 25
- 230000000694 effects Effects 0.000 abstract description 20
- 238000001514 detection method Methods 0.000 abstract description 17
- 238000011084 recovery Methods 0.000 abstract description 7
- 230000006378 damage Effects 0.000 abstract description 6
- 239000000463 material Substances 0.000 description 30
- 235000014121 butter Nutrition 0.000 description 26
- 238000010276 construction Methods 0.000 description 19
- 235000011187 glycerol Nutrition 0.000 description 19
- 239000007788 liquid Substances 0.000 description 12
- 239000002994 raw material Substances 0.000 description 12
- 230000035515 penetration Effects 0.000 description 7
- 239000000126 substance Substances 0.000 description 5
- 230000009471 action Effects 0.000 description 4
- 239000000654 additive Substances 0.000 description 4
- 230000000996 additive effect Effects 0.000 description 4
- 239000004566 building material Substances 0.000 description 4
- 239000003795 chemical substances by application Substances 0.000 description 4
- 239000002131 composite material Substances 0.000 description 4
- 239000000314 lubricant Substances 0.000 description 4
- 238000005259 measurement Methods 0.000 description 4
- 230000035699 permeability Effects 0.000 description 4
- 238000004064 recycling Methods 0.000 description 4
- 239000002344 surface layer Substances 0.000 description 4
- 230000009967 tasteless effect Effects 0.000 description 4
- 230000005669 field effect Effects 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000001788 irregular Effects 0.000 description 2
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- 239000004113 Sepiolite Substances 0.000 description 1
- 230000002457 bidirectional effect Effects 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000005337 ground glass Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003020 moisturizing effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 229910052624 sepiolite Inorganic materials 0.000 description 1
- 235000019355 sepiolite Nutrition 0.000 description 1
- 230000037380 skin damage Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 238000011041 water permeability test Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
- G01N15/08—Investigating permeability, pore-volume, or surface area of porous materials
- G01N15/0806—Details, e.g. sample holders, mounting samples for testing
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- Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Sealing Material Composition (AREA)
- Road Paving Structures (AREA)
Abstract
The invention discloses a waterproof sealing material for asphalt pavement water seepage tests and a preparation method thereof, wherein the waterproof sealing material comprises the following steps: step 1: obtaining a powder mixture A; step 2: obtaining a paste mixture B; and step 3: a sealing material was obtained. Has the advantages that: the invention has high consistency, good plasticity and good toughness, ensures that the test result can truly reflect the water seepage performance of the asphalt pavement in the area, and improves the accuracy of the test result; the workload of workers is reduced, and the working efficiency of test detection is improved; the stripping is easy, the recovery utilization rate is high, and the pollution to the pavement environment is effectively reduced; does not harm the skin of the technician; the waterproof sealing effect is better, and the detection cost is low; can be widely popularized and applied.
Description
The technical field is as follows:
the invention belongs to the technical field of sealing materials for pavement water seepage detection, and particularly relates to a waterproof sealing material for an asphalt pavement water seepage test and a preparation method thereof.
Background art:
the pavement water seepage coefficient is one of important detection indexes of the asphalt pavement, and is tested by adopting a water seepage instrument. The general traditional asphalt pavement water seepage coefficient test comprises the steps of firstly placing waterproof sealing materials such as butter, plasticine, waterproof putty and the like around a test point on the surface of a test piece pavement to form an annular sealing area, then placing a water seepage instrument on the test point, slightly forcing the water seepage instrument to press the water seepage instrument on the annular sealing material, and then adding a balance weight to prevent test water from flowing out from a space between a base and the pavement; the waterproof sealing material has the following problems: 1. the materials of the butter, the plasticine and the waterproof putty are soft, and can randomly move under the pressure action of the water seepage instrument and the counterweight, so that gaps on the road surface in a measuring point are easily blocked, the detected unit water seepage area is reduced, the accuracy of test detection data is influenced, and errors occur in a detection result; 2. the problems of great pollution to the road surface, high recycling rate, high cost and great skin damage exist when the butter, the plasticine and the waterproof putty are used as waterproof sealing materials; 3. and because the consistency of the butter and the waterproof putty is small, the problem of irregular shape is easy to occur when an annular sealing area is prepared, the problem needs to be corrected by workers, the workload of the workers is increased, and the test detection work efficiency is low.
CN201811319249.3 discloses a sealing material for measuring water permeability coefficient and a preparation method thereof, which is synthesized by calcium-based lubricating grease, sepiolite fiber, water-absorbing resin and other materials through a high-temperature heating reaction kettle, the patent has good waterproof sealing performance and high recovery rate, but the materials mentioned in the patent are not easy to purchase in the market, and the materials need professional equipment for processing, the processing process is complex, the time consumption is long, the processing cost is high, and the sealing material is not suitable for being directly prepared on the site of a site water permeability test.
The invention content is as follows:
in view of the above, the present invention aims to provide a waterproof sealing material for asphalt pavement water seepage tests and a preparation method thereof, and the waterproof sealing material for asphalt pavement water seepage tests provided by the present invention has characteristics of high consistency, good plasticity, good toughness, high recycling rate, good waterproof sealing effect, and simple preparation method.
The technical scheme of the invention discloses a preparation method of a waterproof sealing material for a water seepage test of an asphalt pavement, which comprises the following steps:
step 1: the mass ratio of the hydrophobic limestone powder to the talcum powder is 1.2-1.25: 1, stirring and mixing uniformly to obtain a powder mixture A;
step 2: the mass ratio of the lithium-based lubricating grease to the vaseline is 1: 1, stirring and mixing uniformly to obtain a paste mixture B;
and step 3: mixing the powder mixture A in the step 1, the paste mixture B in the step 2 and glycerol in a mass ratio of 8: 1-1.5: 1-1.5, stirring and mixing uniformly to obtain the sealing material.
Further, the manual stirring time in the step 1 is 1-2 min.
Further, the manual stirring time in the step 2 is 2-3 min.
Further, in the step 3, the stirring temperature is 15-35 ℃, the stirring speed is 45-60rpm, and the stirring time is 5-8 min.
Further, the sealing material in the step 4 is placed in a closed container with the temperature of 15-35 ℃ for storage.
The preparation time of the invention is about 8-13min, and is about 15-20h longer than that of the invention with the application number of CN201811319249.3, so that the preparation time is greatly shortened.
On the other hand, the technical scheme of the invention discloses a waterproof sealing material for asphalt pavement water seepage tests, which is obtained by the preparation method.
The invention has the advantages that:
1. compared with the existing waterproof sealing materials such as butter, plasticine, waterproof putty and the like, the waterproof sealing material for the asphalt pavement water seepage test is prepared by taking hydrophobic limestone powder, talcum powder, glycerol, vaseline and lithium-based lubricating grease as raw materials for the first time, has high consistency, good plasticity and good toughness, avoids the phenomenon that the butter, the plasticine and the waterproof putty move under the action of pressure to block gaps on the pavement in a measuring point and influence the test detection data result, ensures that the test result can truly reflect the water seepage performance of the asphalt pavement in the area, and improves the accuracy of the test result; meanwhile, when workers use the sealing material to prepare an annular sealing area, a regular annular shape can be quickly formed, the workload of the workers is reduced, and the working efficiency of test detection is improved;
2. compared with the existing waterproof sealing materials such as butter, plasticine, waterproof putty and the like, the sealing material is easy to strip and high in recycling rate, and effectively reduces the pollution to the pavement environment; meanwhile, the sealing material has simple raw material components and no harmful substances, wherein the glycerol and the vaseline have the function of moisturizing the skin, are scientific and environment-friendly and do not harm the skin of technicians;
3. compared with the existing waterproof sealing materials such as butter, plasticine, waterproof putty and the like and the invention patent with the application number of CN201811319249.3, the waterproof sealing material has better waterproof sealing effect and low detection cost;
4. compared with the invention patent with the application number of CN201811319249.3, the preparation method of the waterproof sealing material is simple and short in time consumption, the used raw material components are common materials in a construction site water seepage test site, the purchase and the use are convenient and quick, and special adoption is not needed, so that the preparation method of the waterproof sealing material is suitable for direct preparation in the construction site water seepage test site and can be widely popularized and applied.
Drawings
FIG. 1 is a water seepage test effect diagram of asphalt pavement, wherein a shows the test effect of a water seepage test by using a butter sealing material, and b shows the test effect of a water seepage test by using a waterproof sealing material of the invention.
FIG. 2 is a field effect diagram of asphalt pavement after water seepage test, wherein a shows the field effect of the asphalt pavement after a butter sealing material is adopted in the water seepage test, and b shows the field effect of the asphalt pavement after a waterproof sealing material is adopted in the water seepage test.
FIG. 3 is a graph showing the effect of the waterproof sealing material on the site, wherein a shows the effect of the waterproof sealing material on the site after the use of butter in a water seepage test, and b shows the effect of the waterproof sealing material on the site after the use of the waterproof sealing material.
The specific implementation mode is as follows:
the present invention will be described in further detail with reference to examples.
Example 1: a preparation method of a waterproof sealing material for a water seepage test of an asphalt pavement comprises the following steps:
step 1: the mass ratio of the hydrophobic limestone powder to the talcum powder is 1.2: 1, manually stirring and mixing for 1min until the mixture is uniformly stirred to obtain a powder mixture A; the hydrophobic limestone powder is a common additive of an asphalt pavement mixture, is one of common building materials for a highway construction site, has a hydrophilic coefficient measurement result of less than 1.0 percent generally, has certain cohesiveness when being mixed with liquid, is one of the raw material components of the invention, and can not cause pollution to the asphalt pavement even if being adhered to the asphalt pavement; the talcum powder is a common separant for asphalt tests in highway engineering, is reserved in construction site laboratories, and can play a role in waterproof sealing and prevent from being adhered to asphalt pavements as a powder filling material, so that the pollution to the pavements is reduced.
Step 2: the mass ratio of the lithium-based lubricating grease to the vaseline is 1: 1, manually stirring and mixing for 2min until the mixture is uniformly stirred to obtain a paste mixture B; the lithium-based lubricating grease is a lubricating grease commonly used for construction site mechanical equipment, has certain cohesiveness, is used as a cementing material to increase the cohesiveness of a sealing material, and improves the waterproof effect of the invention; vaseline, which is a lubricant commonly used for instrument parts of a construction site laboratory, has a certain lubricating and bonding effect, and is used as an auxiliary bonding material of the invention to increase the mixing property and plasticity of the composite material.
And step 3: mixing the powder mixture A in the step 1, the paste mixture B in the step 2 and glycerol in a mass ratio of 8: 1: 1, stirring and mixing uniformly, wherein the stirring temperature is 15 ℃, the stirring speed is 45rpm, and the stirring time is 8min to obtain a sealing material; glycerine, commonly known as glycerin, is also a common isolating agent for asphalt tests, is a colorless and tasteless viscous liquid, is a component of the liquid mixing material, and can play a role in preventing water and isolating an asphalt surface layer.
And (3) storing the sealing material in the step (4) in a closed container at the temperature of 15 ℃.
A waterproof sealing material for asphalt pavement water seepage tests is obtained by the preparation method; the sealing material disclosed by the invention is simple in raw material components and free of harmful substances, wherein the glycerin and the vaseline have the skin moistening function, and the sealing material is scientific and environment-friendly and does not harm skins of technicians.
Example 2: a preparation method of a waterproof sealing material for a water seepage test of an asphalt pavement comprises the following steps:
step 1: the mass ratio of the hydrophobic limestone powder to the talcum powder is 1.25: 1, manually stirring and mixing for 2min until the mixture is uniformly stirred to obtain a powder mixture A; the hydrophobic limestone powder is a common additive of an asphalt pavement mixture, is one of common building materials for a highway construction site, has a hydrophilic coefficient measurement result of less than 1.0 percent generally, has certain cohesiveness when being mixed with liquid, is one of the raw material components of the invention, and can not cause pollution to the asphalt pavement even if being adhered to the asphalt pavement; the talcum powder is a common separant for asphalt tests in highway engineering, is reserved in construction site laboratories, and can play a role in waterproof sealing and prevent from being adhered to asphalt pavements as a powder filling material, so that the pollution to the pavements is reduced.
Step 2: the mass ratio of the lithium-based lubricating grease to the vaseline is 1: 1, manually stirring and mixing for 3min until the mixture is uniformly stirred to obtain a paste mixture B; the lithium-based lubricating grease is a lubricating grease commonly used for construction site mechanical equipment, has certain cohesiveness, is used as a cementing material to increase the cohesiveness of a sealing material, and improves the waterproof effect of the invention; vaseline, which is a lubricant commonly used for instrument parts of a construction site laboratory, has a certain lubricating and bonding effect, and is used as an auxiliary bonding material of the invention to increase the mixing property and plasticity of the composite material.
And step 3: mixing the powder mixture A in the step 1, the paste mixture B in the step 2 and glycerol in a mass ratio of 8: 1.5: 1.5, stirring and mixing uniformly, wherein the stirring temperature is 35 ℃, the stirring speed is 60rpm, and the stirring time is 5min to obtain a sealing material; glycerine, commonly known as glycerin, is also a common isolating agent for asphalt tests, is a colorless and tasteless viscous liquid, is a component of the liquid mixing material, and can play a role in preventing water and isolating an asphalt surface layer.
And (3) storing the sealing material in the step (4) in a closed container with the temperature of 35 ℃.
A waterproof sealing material for asphalt pavement water seepage tests is obtained by the preparation method; the sealing material disclosed by the invention is simple in raw material components and free of harmful substances, wherein the glycerin and the vaseline have the skin moistening function, and the sealing material is scientific and environment-friendly and does not harm skins of technicians.
Example 3: a preparation method of a waterproof sealing material for a water seepage test of an asphalt pavement comprises the following steps:
step 1: the mass ratio of the hydrophobic limestone powder to the talcum powder is 1.22: 1, manually stirring and mixing for 75s until the mixture is uniformly stirred to obtain a powder mixture A; the hydrophobic limestone powder is a common additive of an asphalt pavement mixture, is one of common building materials for a highway construction site, has a hydrophilic coefficient measurement result of less than 1.0 percent generally, has certain cohesiveness when being mixed with liquid, is one of the raw material components of the invention, and can not cause pollution to the asphalt pavement even if being adhered to the asphalt pavement; the talcum powder is a common separant for asphalt tests in highway engineering, is reserved in construction site laboratories, and can play a role in waterproof sealing and prevent from being adhered to asphalt pavements as a powder filling material, so that the pollution to the pavements is reduced.
Step 2: the mass ratio of the lithium-based lubricating grease to the vaseline is 1: 1, manually stirring and mixing for 135s until the mixture is uniformly stirred to obtain a paste mixture B; the lithium-based lubricating grease is a lubricating grease commonly used for construction site mechanical equipment, has certain cohesiveness, is used as a cementing material to increase the cohesiveness of a sealing material, and improves the waterproof effect of the invention; vaseline, which is a lubricant commonly used for instrument parts of a construction site laboratory, has a certain lubricating and bonding effect, and is used as an auxiliary bonding material of the invention to increase the mixing property and plasticity of the composite material.
And step 3: mixing the powder mixture A in the step 1, the paste mixture B in the step 2 and glycerol in a mass ratio of 8: 1.2: 1.2, stirring and mixing uniformly, wherein the stirring temperature is 20 ℃, the stirring speed is 50rpm, and the stirring time is 6min, so as to obtain a sealing material; glycerine, commonly known as glycerin, is also a common isolating agent for asphalt tests, is a colorless and tasteless viscous liquid, is a component of the liquid mixing material, and can play a role in preventing water and isolating an asphalt surface layer.
And (3) storing the sealing material in the step (4) in a closed container with the temperature of 20 ℃.
A waterproof sealing material for asphalt pavement water seepage tests is obtained by the preparation method; the sealing material disclosed by the invention is simple in raw material components and free of harmful substances, wherein the glycerin and the vaseline have the skin moistening function, and the sealing material is scientific and environment-friendly and does not harm skins of technicians.
Example 4: a preparation method of a waterproof sealing material for a water seepage test of an asphalt pavement comprises the following steps:
step 1: the mass ratio of the hydrophobic limestone powder to the talcum powder is 1.24: 1, manually stirring and mixing for 105s until the mixture is uniformly stirred to obtain a powder mixture A; the hydrophobic limestone powder is a common additive of an asphalt pavement mixture, is one of common building materials for a highway construction site, has a hydrophilic coefficient measurement result of less than 1.0 percent generally, has certain cohesiveness when being mixed with liquid, is one of the raw material components of the invention, and can not cause pollution to the asphalt pavement even if being adhered to the asphalt pavement; the talcum powder is a common separant for asphalt tests in highway engineering, is reserved in construction site laboratories, and can play a role in waterproof sealing and prevent from being adhered to asphalt pavements as a powder filling material, so that the pollution to the pavements is reduced.
Step 2: the mass ratio of the lithium-based lubricating grease to the vaseline is 1: 1, manually stirring and mixing for 165s until the mixture is uniformly stirred to obtain a paste mixture B; the lithium-based lubricating grease is a lubricating grease commonly used for construction site mechanical equipment, has certain cohesiveness, is used as a cementing material to increase the cohesiveness of a sealing material, and improves the waterproof effect of the invention; vaseline, which is a lubricant commonly used for instrument parts of a construction site laboratory, has a certain lubricating and bonding effect, and is used as an auxiliary bonding material of the invention to increase the mixing property and plasticity of the composite material.
And step 3: mixing the powder mixture A in the step 1, the paste mixture B in the step 2 and glycerol in a mass ratio of 8: 1.4: 1.4, uniformly stirring and mixing, wherein the stirring temperature is 30 ℃, the stirring speed is 55rpm, and the stirring time is 7min to obtain a sealing material; glycerine, commonly known as glycerin, is also a common isolating agent for asphalt tests, is a colorless and tasteless viscous liquid, is a component of the liquid mixing material, and can play a role in preventing water and isolating an asphalt surface layer.
And (3) storing the sealing material in the step (4) in a closed container with the temperature of 30 ℃.
A waterproof sealing material for asphalt pavement water seepage tests is obtained by the preparation method; the sealing material disclosed by the invention is simple in raw material components and free of harmful substances, wherein the glycerin and the vaseline have the skin moistening function, and the sealing material is scientific and environment-friendly and does not harm skins of technicians.
Firstly, material consistency test:
grease, plasticine, waterproof putty and the waterproof sealing material of embodiment 3 of the invention are respectively put into a test cup, inserted and tamped tightly, then the surface is smeared and laid on a standard penetration resistance instrument, the reading of the penetration resistance instrument is read by taking the standard penetration rod penetration sample of 10mm as a uniform standard, the consistency of the material is evaluated by the penetration resistance, and the results are shown in table 1:
table 1 consistency comparison of the individual materials
| Waterproof sealing material | Penetration resistance (N) |
| Plasticine | 1.5 |
| Butter oil | 0.5 |
| Waterproof putty | 1.0 |
| Example 3 | 4.0 |
As can be seen from the table 1, the waterproof sealing material of the embodiment 3 has the largest penetration resistance, i.e. has the highest consistency compared with butter, plasticine and waterproof putty, so that the waterproof sealing material of the embodiment 3 cannot block the gap on the road surface in the measuring point under the action of pressure, the test detection data result is influenced, the test result can truly reflect the water seepage performance of the asphalt pavement in the area, and the accuracy of the test result is improved; meanwhile, when workers use the sealing material to prepare an annular sealing area, a regular annular shape can be quickly formed, the workload of the workers is reduced, and the working efficiency of test detection is improved.
Secondly, testing the waterproof sealing performance of the material:
according to the JTG 3450-2019 road bed and road pavement site test regulation 0971-2019 asphalt pavement water permeability coefficient test method, a water permeability instrument is arranged on a test bed based on a common ground glass plate in a construction site laboratory, plasticine, a sealing material disclosed by the application number CN201811319249.3 and the waterproof sealing material in the embodiment 3 of the invention are respectively adopted for waterproof sealing, the test time is set to 30min, then the water permeability values of three materials in 9 positions within 30min are respectively recorded for evaluating the waterproof sealing performance of the materials, and the test results are shown in the table 2:
TABLE 2 comparison of waterproof sealing Properties of the respective materials
As can be seen from the table, the water seepage amount of the plasticine is the largest within 30min, and the sealing material of the invention patent with the application number of CN201811319249.3 is arranged secondly, and the waterproof sealing material of the embodiment 3 of the invention is arranged finally; therefore, compared with the existing plasticine and the patent with the application number of CN201811319249.3, the waterproof sealing effect of the sealing material is better.
Thirdly, comparing the detection cost:
according to the water seepage quality requirement specification of Highway engineering quality inspection and evaluation Standard, one place is taken every 200m of each double-lane asphalt pavement of each kilometer, and the water seepage condition of the pavement is tested at three measuring points, then a bidirectional four-lane highway is used for calculation, the water seepage measuring points of each kilometer are 60 points, each measuring point is uniformly calculated according to the consumption of 600g of waterproof sealing material, 36000g of the waterproof sealing material is needed, the actual cost is comprehensively calculated according to the recovery utilization rate of the finished product after use, the recovery rate of the waterproof putty and the butter does not have the recovery condition, so the recovery rate of the plasticine is 0, and the recovery rate of the sealing material of the embodiment 3 and the sealing material of the patent application No. CN201811319249.3 is more than 90%. The detection cost was calculated and the results are shown in table 3:
TABLE 3 comparison of test costs for each material
The table shows that the recycling rate of the butter and the waterproof putty is zero, so the detection cost of the butter and the waterproof putty is higher, and the detection cost of the plasticine is lower; since the price of the raw material components in the invention patent application No. CN201811319249.3 is higher than that of the sealing material of example 3 of the present invention; the detection cost of the sealing material of the invention is lowest.
Fourthly, comparing the water seepage test of the waterproof sealing material by adopting butter with that of the waterproof sealing material of the invention:
as shown in figure 1, when the asphalt pavement water seepage test is carried out at the same time, the water seepage amount of the butter sealing material is large, the water level in the water seepage instrument is reduced more, and meanwhile, water stains appear in the outer side area of the butter sealing ring, while the water seepage amount of the waterproof sealing material is small, the water level in the water seepage instrument is reduced less, and meanwhile, the water stains do not appear in the outer side area of the sealing ring of the waterproof sealing material, so that the waterproof sealing effect of the waterproof sealing material is better than that of butter, and the test result detected by the water seepage test is more accurate.
As shown in fig. 2, after the water seepage test is completed, water stains are all arranged around the measuring points of the sealing material adopting the butter, and no water stains are arranged around the measuring points of the sealing material adopting the waterproof sealing material of the invention, and the water stains shown in the graph b are caused by that water in the water seepage instrument is scattered when the water seepage instrument is taken away, so that the waterproof sealing effect of the waterproof sealing material of the invention is better than that of the butter intuitively seen; meanwhile, the sealing ring formed by the butter has an irregular condition, the sealing ring formed by the waterproof sealing material is still in a regular annular shape, and the inner area of the sealing ring formed by the waterproof sealing material is larger than that of the sealing ring formed by the butter, so that the butter can be seen to flow inwards the measuring point to block gaps on the inner part of the road surface of the measuring point under the pressure action of the water seepage meter and the counterweight; therefore, the data result detected by the waterproof sealing material in the water seepage test is more accurate.
As shown in figure 3, the sealing material is recovered after the water seepage test is finished, and the figure shows that the butter sealing material is directly adhered to the asphalt pavement and cannot be shoveled and recovered, so that the material waste is caused, and the pavement environment is polluted.
The present invention is not limited to the above preferred embodiments, and any modifications, equivalent substitutions, improvements, etc. within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. The preparation method of the waterproof sealing material for the asphalt pavement water seepage test is characterized by comprising the following steps of:
step 1: the mass ratio of the hydrophobic limestone powder to the talcum powder is 1.2-1.25: 1, stirring and mixing uniformly to obtain a powder mixture A;
step 2: the mass ratio of the lithium-based lubricating grease to the vaseline is 1: 1, stirring and mixing uniformly to obtain a paste mixture B;
and step 3: mixing the powder mixture A in the step 1, the paste mixture B in the step 2 and glycerol in a mass ratio of 8: 1-1.5: 1-1.5, stirring and mixing uniformly to obtain the sealing material.
2. The method for preparing the waterproof sealing material for the water seepage test of the asphalt pavement according to claim 1, wherein the manual stirring time in the step 1 is 1-2 min.
3. The method for preparing the waterproof sealing material for the water seepage test of the asphalt pavement according to claim 1, wherein the manual stirring time in the step 2 is 2-3 min.
4. The method for preparing the waterproof sealing material for the water seepage test of the asphalt pavement according to claim 1, wherein the stirring temperature in the step 3 is 15-35 ℃, the stirring speed is 45-60rpm, and the stirring time is 5-8 min.
5. The method for preparing the waterproof sealing material for the asphalt pavement water seepage test according to claim 1, wherein the sealing material in the step 4 is stored in a closed container at a temperature of 15-35 ℃.
6. A waterproof sealing material for asphalt pavement water seepage tests, which is obtained by the preparation method of any one of claims 1 to 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110143169.2A CN112730200B (en) | 2021-02-02 | 2021-02-02 | Waterproof sealing material for asphalt pavement water seepage test and preparation method thereof |
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| JP2008190207A (en) * | 2007-02-05 | 2008-08-21 | Nikko Co Ltd | Melting apparatus for pavement sealing material and waterproof material |
| CN102788744A (en) * | 2012-07-27 | 2012-11-21 | 马鞍山十七冶工程科技有限责任公司 | Sealing material for detecting water permeability resistance of asphalt pavement |
| CN105907369A (en) * | 2016-04-19 | 2016-08-31 | 山东省交通科学研究院 | A sealing material used for bituminous pavement in-situ permeability tests, a preparing method thereof and a supporting construction tool |
| CN110218474A (en) * | 2019-05-27 | 2019-09-10 | 四川中德禄江装备科技有限公司 | A kind of sealing material and its modulator approach for asphalt infiltration test |
| CN111607355A (en) * | 2020-06-30 | 2020-09-01 | 六安市共鑫道路材料有限公司 | Special sealing material for asphalt pavement water seepage detection and preparation method thereof |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008190207A (en) * | 2007-02-05 | 2008-08-21 | Nikko Co Ltd | Melting apparatus for pavement sealing material and waterproof material |
| CN102788744A (en) * | 2012-07-27 | 2012-11-21 | 马鞍山十七冶工程科技有限责任公司 | Sealing material for detecting water permeability resistance of asphalt pavement |
| CN105907369A (en) * | 2016-04-19 | 2016-08-31 | 山东省交通科学研究院 | A sealing material used for bituminous pavement in-situ permeability tests, a preparing method thereof and a supporting construction tool |
| CN110218474A (en) * | 2019-05-27 | 2019-09-10 | 四川中德禄江装备科技有限公司 | A kind of sealing material and its modulator approach for asphalt infiltration test |
| CN111607355A (en) * | 2020-06-30 | 2020-09-01 | 六安市共鑫道路材料有限公司 | Special sealing material for asphalt pavement water seepage detection and preparation method thereof |
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