CN113861894A - Anti-hole-blocking ultralight sealing material for large-gap asphalt pavement water seepage test - Google Patents
Anti-hole-blocking ultralight sealing material for large-gap asphalt pavement water seepage test Download PDFInfo
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- CN113861894A CN113861894A CN202110939862.0A CN202110939862A CN113861894A CN 113861894 A CN113861894 A CN 113861894A CN 202110939862 A CN202110939862 A CN 202110939862A CN 113861894 A CN113861894 A CN 113861894A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 59
- 239000010426 asphalt Substances 0.000 title claims abstract description 52
- 239000003566 sealing material Substances 0.000 title claims abstract description 50
- 238000012360 testing method Methods 0.000 title claims abstract description 37
- 239000000203 mixture Substances 0.000 claims abstract description 47
- 239000011230 binding agent Substances 0.000 claims abstract description 28
- 239000000945 filler Substances 0.000 claims abstract description 24
- 239000003086 colorant Substances 0.000 claims abstract description 22
- 230000003449 preventive effect Effects 0.000 claims abstract description 20
- 239000002518 antifoaming agent Substances 0.000 claims abstract description 19
- 239000000080 wetting agent Substances 0.000 claims abstract description 19
- 239000002994 raw material Substances 0.000 claims abstract description 14
- 239000006229 carbon black Substances 0.000 claims abstract description 12
- -1 waterproof putty Substances 0.000 claims abstract description 11
- 239000004005 microsphere Substances 0.000 claims abstract description 10
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 7
- SXRSQZLOMIGNAQ-UHFFFAOYSA-N Glutaraldehyde Chemical compound O=CCCCC=O SXRSQZLOMIGNAQ-UHFFFAOYSA-N 0.000 claims abstract description 6
- 239000000499 gel Substances 0.000 claims abstract description 4
- 238000003756 stirring Methods 0.000 claims description 85
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 claims description 19
- 238000002156 mixing Methods 0.000 claims description 17
- DNIAPMSPPWPWGF-UHFFFAOYSA-N Propylene glycol Chemical compound CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 claims description 16
- 230000000903 blocking effect Effects 0.000 claims description 14
- 239000000463 material Substances 0.000 claims description 12
- 238000002360 preparation method Methods 0.000 claims description 11
- 235000011187 glycerol Nutrition 0.000 claims description 8
- 238000005187 foaming Methods 0.000 claims description 6
- 239000002245 particle Substances 0.000 claims description 6
- 239000004372 Polyvinyl alcohol Substances 0.000 claims description 5
- 239000003349 gelling agent Substances 0.000 claims description 5
- 229920002451 polyvinyl alcohol Polymers 0.000 claims description 5
- 238000001816 cooling Methods 0.000 claims description 4
- 239000004205 dimethyl polysiloxane Substances 0.000 claims description 4
- 229920000435 poly(dimethylsiloxane) Polymers 0.000 claims description 4
- LCZVSXRMYJUNFX-UHFFFAOYSA-N 2-[2-(2-hydroxypropoxy)propoxy]propan-1-ol Chemical compound CC(O)COC(C)COC(C)CO LCZVSXRMYJUNFX-UHFFFAOYSA-N 0.000 claims description 2
- GUUULVAMQJLDSY-UHFFFAOYSA-N 4,5-dihydro-1,2-thiazole Chemical compound C1CC=NS1 GUUULVAMQJLDSY-UHFFFAOYSA-N 0.000 claims description 2
- FBPFZTCFMRRESA-FSIIMWSLSA-N D-Glucitol Natural products OC[C@H](O)[C@H](O)[C@@H](O)[C@H](O)CO FBPFZTCFMRRESA-FSIIMWSLSA-N 0.000 claims description 2
- FBPFZTCFMRRESA-JGWLITMVSA-N D-glucitol Chemical compound OC[C@H](O)[C@@H](O)[C@H](O)[C@H](O)CO FBPFZTCFMRRESA-JGWLITMVSA-N 0.000 claims description 2
- 239000002202 Polyethylene glycol Substances 0.000 claims description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical group [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 2
- 230000000844 anti-bacterial effect Effects 0.000 claims description 2
- 239000003899 bactericide agent Substances 0.000 claims description 2
- 239000002480 mineral oil Substances 0.000 claims description 2
- 235000010446 mineral oil Nutrition 0.000 claims description 2
- 229920001223 polyethylene glycol Polymers 0.000 claims description 2
- 235000013772 propylene glycol Nutrition 0.000 claims description 2
- 239000000600 sorbitol Substances 0.000 claims description 2
- 235000015112 vegetable and seed oil Nutrition 0.000 claims description 2
- 239000008158 vegetable oil Substances 0.000 claims description 2
- 230000002265 prevention Effects 0.000 claims 5
- 239000011148 porous material Substances 0.000 claims 4
- WFJFGMLKAISFOZ-UHFFFAOYSA-N 1-amino-3-iminourea Chemical compound NN=C(O)N=N WFJFGMLKAISFOZ-UHFFFAOYSA-N 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 14
- 238000003860 storage Methods 0.000 abstract description 8
- 238000007789 sealing Methods 0.000 abstract description 6
- 230000005484 gravity Effects 0.000 abstract description 3
- 230000000694 effects Effects 0.000 description 10
- 230000002829 reductive effect Effects 0.000 description 8
- 238000000034 method Methods 0.000 description 7
- 235000013312 flour Nutrition 0.000 description 5
- 230000035699 permeability Effects 0.000 description 5
- 229960004063 propylene glycol Drugs 0.000 description 5
- 239000003153 chemical reaction reagent Substances 0.000 description 4
- 239000000049 pigment Substances 0.000 description 4
- 239000002344 surface layer Substances 0.000 description 4
- 239000004568 cement Substances 0.000 description 3
- 238000001514 detection method Methods 0.000 description 3
- 229910021485 fumed silica Inorganic materials 0.000 description 3
- 239000011521 glass Substances 0.000 description 3
- 229920003023 plastic Polymers 0.000 description 3
- 239000004033 plastic Substances 0.000 description 3
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 2
- 239000004721 Polyphenylene oxide Substances 0.000 description 2
- 238000005054 agglomeration Methods 0.000 description 2
- 230000002776 aggregation Effects 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 2
- 239000011575 calcium Substances 0.000 description 2
- 229910052791 calcium Inorganic materials 0.000 description 2
- 239000013530 defoamer Substances 0.000 description 2
- 239000004519 grease Substances 0.000 description 2
- 230000002209 hydrophobic effect Effects 0.000 description 2
- 230000036961 partial effect Effects 0.000 description 2
- 229920000570 polyether Polymers 0.000 description 2
- 230000036619 pore blockages Effects 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 230000008961 swelling Effects 0.000 description 2
- 239000012790 adhesive layer Substances 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 239000011384 asphalt concrete Substances 0.000 description 1
- 229910021538 borax Inorganic materials 0.000 description 1
- KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical compound OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 description 1
- 239000004327 boric acid Substances 0.000 description 1
- 235000014121 butter Nutrition 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003906 humectant Substances 0.000 description 1
- 230000002427 irreversible effect Effects 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 239000000344 soap Substances 0.000 description 1
- 239000004328 sodium tetraborate Substances 0.000 description 1
- 235000010339 sodium tetraborate Nutrition 0.000 description 1
- 239000002352 surface water Substances 0.000 description 1
- 239000011800 void material Substances 0.000 description 1
- 238000011041 water permeability test Methods 0.000 description 1
Classifications
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J129/00—Adhesives based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an alcohol, ether, aldehydo, ketonic, acetal, or ketal radical; Adhesives based on hydrolysed polymers of esters of unsaturated alcohols with saturated carboxylic acids; Adhesives based on derivatives of such polymers
- C09J129/02—Homopolymers or copolymers of unsaturated alcohols
- C09J129/04—Polyvinyl alcohol; Partially hydrolysed homopolymers or copolymers of esters of unsaturated alcohols with saturated carboxylic acids
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/0095—Mixtures of at least two compounding ingredients belonging to different one-dot groups
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/02—Non-macromolecular additives
- C09J11/04—Non-macromolecular additives inorganic
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/02—Non-macromolecular additives
- C09J11/06—Non-macromolecular additives organic
-
- 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
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2329/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an alcohol, ether, aldehydo, ketonic, acetal, or ketal radical; Hydrolysed polymers of esters of unsaturated alcohols with saturated carboxylic acids; Derivatives of such polymer
- C08J2329/02—Homopolymers or copolymers of unsaturated alcohols
- C08J2329/04—Polyvinyl alcohol; Partially hydrolysed homopolymers or copolymers of esters of unsaturated alcohols with saturated carboxylic acids
-
- 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)
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- Health & Medical Sciences (AREA)
- Biochemistry (AREA)
- General Physics & Mathematics (AREA)
- Dispersion Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Analytical Chemistry (AREA)
- Inorganic Chemistry (AREA)
- General Health & Medical Sciences (AREA)
- Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Engineering & Computer Science (AREA)
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- Polymers & Plastics (AREA)
- Sealing Material Composition (AREA)
Abstract
The invention discloses an anti-blocking ultra-light sealing material for a large-gap asphalt pavement water seepage test, which is mainly prepared from the following raw materials: binder, waterproof putty, gel, water, filler, coloring agent, defoaming agent, wetting agent and mildew preventive; the gel is glutaraldehyde; the filler is hollow microspheres or a mixture of the hollow microspheres and gas-phase white carbon black. The sealing material has the characteristics of good sealing property, no hole blockage, light specific gravity, black color, easy storage, convenient reuse and the like. Accordingly, the inventors have also established a corresponding production method.
Description
Technical Field
The invention belongs to the technical field of sealing materials for large-gap asphalt pavement test detection, and particularly relates to an anti-blocking ultra-light sealing material for a large-gap asphalt pavement water seepage test.
Background
The large-gap asphalt pavement is a novel open-graded asphalt pavement, and the void ratio of the large-gap asphalt pavement is 18-25% which is 5-6 times of that of the conventional pavement. The middle and lower asphalt surface layers below the water permeable surface layer adopt dense graded asphalt concrete, a waterproof adhesive layer is arranged between the large-gap water permeable asphalt surface layer and the middle surface layer, and a longitudinal side ditch and a transverse drain pipe are arranged below a road shoulder, so that water permeating into the drainage function layer in rainy days can be transversely drained out of a road surface structure, a road surface water film which brings adverse effects of driving is eliminated, and the safety and the comfort of driving in rainy days are remarkably improved; meanwhile, the porous characteristic of the large-gap asphalt pavement can greatly reduce traffic noise and urban 'heat island effect'.
In order to evaluate the water permeability of the large-gap asphalt pavement, the water permeability coefficient of the large-gap asphalt pavement is required to be more than or equal to 5000ml/min, so that the functional requirement of quickly draining water and reducing the thickness of a water film in rainy days can be met, which is different from the strict water sealing condition required by the conventional dense-graded asphalt pavement. The existing sealing materials such as calcium-based grease, plasticine, glass cement and the like are water-sealing materials developed for dense-graded asphalt pavements, once the sealing materials are adopted to carry out a water seepage test on the large-gap asphalt pavements, artificial hole blocking of the large-gap asphalt pavements is easily caused, the sealing materials after hole blocking are difficult to clean, and the water permeability effect of the large-gap asphalt pavements is artificially reduced; meanwhile, the existing sealing material has high density and is inconvenient to carry in the test and detection process; the sealing materials such as soap and flour can be used only once and cannot be reused, so that the cost is wasted, and the road surface is affected because the colors are different and different from the colors of the road surface.
Disclosure of Invention
The invention aims to solve the technical problem of providing an ultra-light sealing material for preventing pore blockage in a large-gap asphalt pavement water seepage test, which has the advantages of good sealing property, no pore blockage, light specific gravity, black color, easy storage and convenient reutilization, and a preparation method thereof.
The hole-blocking-preventing ultralight sealing material for the large-gap asphalt pavement water seepage test is mainly prepared from the following raw materials: binder, waterproof putty, gel, water, filler, coloring agent, defoaming agent, wetting agent and mildew preventive; the gel is glutaraldehyde; the filler is hollow microspheres or a mixture of the hollow microspheres and gas-phase white carbon black.
The hole-blocking-preventing ultralight sealing material for the large-gap asphalt pavement water seepage test is mainly prepared from the following raw materials in parts by weight: 4-15 parts of binder, 2-12 parts of waterproof putty, 1-4 parts of gel, 40-60 parts of water, 5-30 parts of filler, 0.25-1 part of coloring agent, 1-2 parts of defoaming agent, 0-20 parts of wetting agent and 0.15-0.75 part of mildew preventive.
The hole-blocking-preventing ultralight sealing material for the large-gap asphalt pavement water seepage test is mainly prepared from the following raw materials in parts by weight: 7.8-12 parts of binder, 3-6 parts of waterproof putty, 2-3 parts of gel, 44-55 parts of water, 6-26 parts of filler, 0.35-0.95 part of coloring agent, 1.2-1.8 parts of defoaming agent, 5-20 parts of wetting agent and 0.2-0.65 part of mildew preventive.
The hole-blocking-preventing ultralight sealing material for the large-gap asphalt pavement water seepage test is mainly prepared from the following raw materials in parts by weight: 10 parts of binder, 4 parts of waterproof putty, 2 parts of gel, 50 parts of water, 10 parts of filler, 0.85 part of coloring agent, 1.6 parts of defoaming agent, 15 parts of wetting agent and 0.4 part of mildew preventive.
The binder is polyvinyl alcohol; the coloring agent is one or the combination of carbon black and rubber carbon black; the defoaming agent is modified silicon polydimethylsiloxane; the humectant is one or combination of glycerol, propylene glycol, glycerol, polyethylene glycol, sorbitol, tripropylene glycol, vegetable oil, and mineral oil; the mildew preventive is one or the combination of isothiazoline bactericide and cason.
The particle size of the filler is 2 to 100 μm.
The preparation method of the anti-blocking ultralight sealing material for the large-gap asphalt pavement water seepage test comprises the following steps:
(1) taking out the binder according to the weight part of the formula, putting the binder into a reaction kettle, stirring at a constant temperature until the binder particles are completely melted, cooling, adding the filler and the defoaming agent in the corresponding formula amount into a mixer to mix and stir until the mixture is uniform, and fully performing foaming expansion reaction to obtain a first mixture; and the defoaming agent is added in the expansion process to reduce bubbles generated in the foaming expansion process and increase the compactness of the expanded material.
(2) Adding the first mixture, water and a gelling agent in a formula amount into a mixer, and mixing and stirring until the mixture is uniform to obtain a second mixture; wherein, the glutaraldehyde is not only a polyvinyl alcohol gel, but also a buffer agent, the pH value of the system is maintained to reach a certain range, the gel system is irreversible, and the pH value is more than or equal to 7;
(3) and adding the second mixture, the waterproof putty, the wetting agent, the coloring agent and the mildew preventive into a mixer according to the formula ratio, and mixing and stirring until the mixture is uniform to obtain the hole blocking preventing ultralight sealing material (third mixture).
In the step (1), the constant temperature is 100 ℃, the mixing and stirring speed is 600-800 r/min, and the time is 20 min.
In the step (2), the mixing and stirring speed is 400-600 r/min, and the time is 10 min.
In the step (3), the mixing and stirring speed is 600-800 r/min, and the time is 30 min.
Aiming at the problems of the sealing material for the test and detection of the existing large-gap asphalt pavement, the inventor develops an anti-blocking ultra-light sealing material for the water seepage test of the large-gap asphalt pavement, which is mainly prepared from the following raw materials: binder, waterproof putty, gel, water, filler, coloring agent, defoaming agent, wetting agent and mildew preventive; the gel is glutaraldehyde; the filler is hollow microspheres or a mixture of the hollow microspheres and gas-phase white carbon black. The sealing material has the characteristics of good sealing property, no hole blockage, light specific gravity, black color, easy storage, convenient reuse and the like. Accordingly, the inventors have also established a corresponding production method. Compared with the prior art, the invention has the outstanding advantages that:
(1) glutaraldehyde is adopted to replace the traditional boric acid or borax as a gelling agent, and the prepared sealing material is environment-friendly and harmless; meanwhile, the waterproof putty is added, so that the water sealing effect of the sealing material can be better improved.
(2) The hollow microspheres or the mixture of the hollow microspheres and the fumed silica is added for foaming, so that the volume of the material is expanded by multiple times, the density of the material is low and is only 0.35-0.4g/cm3, and the material is convenient to carry in a test; meanwhile, due to the characteristics of the nano-grade plastic material, the nano-grade plastic material can be tightly attached to the side surface of the closed water seepage instrument to prevent lateral seepage in the using process, and meanwhile, the nano-grade plastic material is not easy to be bonded with a road surface to cause large-gap asphalt road surface hole blocking.
(3) The product of the invention has good conglobation property, black color, easy storage, long storage time, easy recovery, no stickiness, reusability and no secondary pollution to asphalt pavement.
Detailed Description
Research on preparation process of anti-blocking ultra-light sealing material for large-gap asphalt pavement water seepage test
As mentioned above, the preparation method of the invention mixes the materials in steps, avoids the agglomeration phenomenon of some materials during one-time mixing, simultaneously improves the crosslinking effect among the components, adapts to the specific components and improves the agglomeration stability. To better demonstrate the research results of the manufacturing process, the results of the process screening (tables 1 to 4) are now tabulated below.
TABLE 1 optimized effect table of different mixing order of hole-blocking-preventing ultralight sealing material
In table 1, (1) one-time mixing is: mixing all the raw materials in the formula at one time; (2) the two times of mixing are as follows: after obtaining a first mixture according to the preparation requirement, mixing the first mixture and the rest raw materials of the formula; (3) the three times of mixing are as follows: the preparation method of the invention is preferably obtained.
TABLE 2 preferred Effect of first mixture stirring time and speed
As can be seen from Table 2, when the stirring time is short and the stirring speed is low, the first mixture is not sufficiently stirred and is not uniformly mixed (for example, the stirring time is 5-15 min, and the stirring speed is 300-700 r/min); when the stirring time is short and the stirring speed is set to be too high, the instrument is easy to burn and damage (for example, the stirring time is 5-15 min, and the stirring speed is 800-1100 r/min); when the stirring time is long and the stirring speed is set to be too low, the production efficiency is easily reduced, and the stirring is partially uneven (for example, the stirring time is 20-35 min, and the stirring speed is 300-500 r/min); when the stirring time is long and the stirring speed is set too high, the stirring is sufficient and uniform, but the production efficiency is easily reduced and the production cost is increased (for example, the stirring time is 30-35 min, and the stirring speed is 900-1100 r/min). Therefore, the first mixture is preferably produced by adopting the technology of stirring for 20min and at the stirring speed of 600-800 r/min.
TABLE 3 preferred Effect of second mixture stirring time and speed
As can be seen from Table 3, when the stirring time is short and the stirring speed is low, the second mixture is not sufficiently stirred and is not uniformly mixed (for example, the stirring time is 5-15 min, and the stirring speed is 200-700 r/min); when the stirring time is short and the stirring speed is set too high, the instrument is easy to burn and damage (such as 5min of stirring time and 800r/min of stirring speed); when the stirring time is long and the stirring speed is set too low, the production efficiency is easily reduced, and the stirring still has partial non-uniform conditions (such as the stirring time is 15min, and the stirring speed is 200 r/min); when the stirring time is long and the stirring speed is set to be too high, the stirring is sufficiently and uniformly carried out, but the production efficiency is easily reduced and the production cost is increased (for example, the stirring time is 20min, and the stirring speed is 200-800 r/min). Therefore, the second mixture is preferably produced by a process of stirring for 10min at a stirring speed of 400-600 r/min.
Table 4 preferred effect of third mixture stirring time and speed
From the table 4, when the stirring time is short and the stirring speed is low, the obtained anti-blocking hole ultra-light sealing material is not sufficiently stirred and is not uniformly mixed (for example, the stirring time is 15-25 min, and the stirring speed is 300-900 r/min); when the stirring time is short and the stirring speed is set to be too high, the instrument is easy to burn and damage (for example, the stirring time is 15min, and the stirring speed is 900-1000 r/min); when the stirring time is long and the stirring speed is set to be too low, the production efficiency is easily reduced, and the stirring still has partial non-uniform conditions (such as the stirring time is 30-45 min, and the stirring speed is 300 r/min); when the stirring time is long and the stirring speed is set to be too high, the stirring is sufficiently and uniformly carried out, but the production efficiency is easily reduced and the production cost is increased (for example, the stirring time is 30-45 min, and the stirring speed is 600-1100 r/min). Therefore, the third mixture (the anti-blocking ultra-light sealing material) is preferably produced by adopting the process of stirring for 30min and at the stirring speed of 600-800 r/min.
Second, preparation example
Example 1
1. The formula (weight ratio) is as follows: 10 parts of binder, 4 parts of waterproof putty, 2 parts of gel, 50 parts of water, 10 parts of filler, 0.85 part of coloring agent, 1.6 parts of defoaming agent, 15 parts of wetting agent and 0.4 part of mildew preventive; wherein, the binder is polyvinyl alcohol 0588 type, manufacturer: shanghai Zi reagent factory, the gel is 1, 5-glutaraldehyde, and the factory is: hubei Jinghong Biotechnology GmbH, filler is hydrophobic fumed silica HB-152, manufacturer: hubei Huifu nanometer materials, Inc., the coloring agent is pigment carbon black, high pigment carbon black BR408, the manufacturer is: tianjin Yibo Rui chemical Co., Ltd, the defoamer is polyether modified polydimethylsiloxane 351, manufacturer: shanghai Zi reagent factory, the wetting agent is a mixture of propylene glycol and glycerin, the 1, 2-propylene glycol is prepared from the following raw materials: guangdong Yilong industries, Inc., 1,2, 3-propanetriol, the manufacturer is: guangdong Yilong industries, Inc., the mildew preventive is Kasong ZB104, manufacturer: shandong Wanhuantian-New Material Co., Ltd.
2. Method for producing
(1) Taking out the binder according to the weight part of the formula, putting the binder into a reaction kettle, stirring at a constant temperature of 100 ℃ until binder particles are completely melted, cooling, adding the filler and the defoaming agent in corresponding formula amounts into a mixer, stirring at a speed of 600-800 r/min for 20min until the mixture is uniform, and fully performing foaming and swelling reaction to obtain a first mixture;
(2) adding the first mixture, water and a gelling agent in a formula amount into a mixer, and stirring at a speed of 400-600 r/min for 10min until the mixture is uniform to obtain a second mixture;
(3) and adding the second mixture, the waterproof putty, the wetting agent, the coloring agent and the mildew preventive in a formula ratio into a mixer, and stirring at the speed of 600-800 r/min for 30min until the mixture is uniform to obtain the anti-blocking ultra-light sealing material for the large-gap asphalt pavement water seepage test.
Example 2
1. The formula (weight ratio) is as follows: 9 parts of binder, 3 parts of waterproof putty, 2 parts of gel, 52 parts of water, 9 parts of filler, 0.85 part of coloring agent, 1.6 parts of defoaming agent, 16 parts of wetting agent and 0.4 part of mildew preventive; wherein, the binder is polyvinyl alcohol 0588 type, manufacturer: shanghai Zi reagent factory, the gel is 1, 5-glutaraldehyde, and the factory is: hubei Jinghong Biotechnology GmbH, filler is hydrophobic fumed silica HB-152, manufacturer: hubei Huifu nanometer materials, Inc., the coloring agent is pigment carbon black, high pigment carbon black BR408, the manufacturer is: tianjin Yibo Rui chemical Co., Ltd, the defoamer is polyether modified polydimethylsiloxane 351, manufacturer: shanghai Zi reagent factory, the wetting agent is a mixture of propylene glycol and glycerin, the 1, 2-propylene glycol is prepared from the following raw materials: guangdong Yilong industries, Inc., 1,2, 3-propanetriol, the manufacturer is: guangdong Yilong industries, Inc., the mildew preventive is Kasong ZB104, manufacturer: shandong Wanhuantian-New Material Co., Ltd.
2. Method for producing
(1) Taking out the binder according to the weight part of the formula, putting the binder into a reaction kettle, stirring at a constant temperature of 100 ℃ until binder particles are completely melted, cooling, adding the filler and the defoaming agent in corresponding formula amounts into a mixer, stirring at a speed of 600-800 r/min for 20min until the mixture is uniform, and fully performing foaming and swelling reaction to obtain a first mixture;
(2) adding the first mixture, water and a gelling agent with the corresponding formula amount into a mixer, and stirring at the speed of 400-600 r/min for 10min until the mixture is uniform to obtain a second mixture;
(3) and adding the second mixture, the waterproof putty, the wetting agent, the coloring agent and the mildew preventive in a formula ratio into a mixer, and stirring at the speed of 600-800 r/min for 30min until the mixture is uniform to obtain the anti-blocking ultra-light sealing material for the large-gap asphalt pavement water seepage test.
Third, analysis of product Properties of examples
The performance of the anti-blocking ultra-light sealing material of the above embodiment was tested, and the performance of the product was analyzed by selecting a large-gap asphalt pavement and common butter, fermented flour and glass cement as comparison in the test section, and the results are shown in table 5.
TABLE 5 Performance test results of anti-blocking ultra-light sealing material for large-gap asphalt pavement water seepage test
Analysis table 5 shows that the water permeability coefficient of the anti-blocking ultralight sealing material is basically kept unchanged when a large-gap asphalt pavement water permeability test is carried out after repeated use for many times, while the water permeability coefficient of other sealing materials is obviously increased after repeated use for 3 times, and the fermented flour cannot be directly recycled due to excessive moisture. The anti-blocking hole ultralight sealing material has good sealing effect and can be repeatedly used. In addition, the storage time of the calcium base grease, the fermented flour and the glass cement in the examples 1 and 2 is 12 months, 36 months, 1 hour and 8 months respectively, and the construction time requirement (except the fermented flour) of the water seepage test is met. Finally, the anti-blocking hole ultra-light sealing material has the advantages of minimum density, light weight and convenience for carrying in a water seepage test; the hand is not sticky, the water seepage test operation is convenient, and the workload of experimenters is reduced; meanwhile, the asphalt pavement is not bonded, the surface opening of the large-gap asphalt pavement is blocked, and the asphalt pavement has incomparable advantages of other sealing materials and prevents artificial hole blocking.
Compared with the traditional asphalt seepage test sealing material, the anti-blocking ultralight sealing material for the seepage test of the large-gap asphalt pavement can be well suitable for the large-gap asphalt pavement, and can solve the problems that the traditional sealing material blocks the holes and is inconvenient to carry and the like. The product has the advantages of small density, no hole blockage, good conglobation, black color, easy storage, long storage time, easy recovery, no adhesion, repeated utilization, no secondary pollution to the asphalt pavement, and high practical value and popularization value in the technical field of large-gap asphalt mixture water seepage tests.
Claims (10)
1. The hole-blocking-preventing ultralight sealing material for the large-gap asphalt pavement water seepage test is characterized by mainly comprising the following raw materials: binder, waterproof putty, gel, water, filler, coloring agent, defoaming agent, wetting agent and mildew preventive; the gel is glutaraldehyde; the filler is hollow microspheres or a mixture of the hollow microspheres and gas-phase white carbon black.
2. The large-gap asphalt pavement water seepage test hole blocking prevention ultra-light sealing material as claimed in claim 1, is characterized by being mainly prepared from the following raw materials in parts by weight: 4-15 parts of binder, 2-12 parts of waterproof putty, 1-4 parts of gel, 40-60 parts of water, 5-30 parts of filler, 0.25-1 part of coloring agent, 1-2 parts of defoaming agent, 0-20 parts of wetting agent and 0.15-0.75 part of mildew preventive.
3. The large-gap asphalt pavement water seepage test hole blocking prevention ultralight sealing material as claimed in claim 2, which is characterized by being mainly prepared from the following raw materials in parts by weight: 7.8-12 parts of binder, 3-6 parts of waterproof putty, 2-3 parts of gel, 44-55 parts of water, 6-26 parts of filler, 0.35-0.95 part of coloring agent, 1.2-1.8 parts of defoaming agent, 5-20 parts of wetting agent and 0.2-0.65 part of mildew preventive.
4. The large-gap asphalt pavement water seepage test hole blocking prevention ultra-light sealing material as claimed in claim 3, is characterized in that: the material is mainly prepared from the following raw materials in parts by weight: 10 parts of binder, 4 parts of waterproof putty, 2 parts of gel, 50 parts of water, 10 parts of filler, 0.85 part of coloring agent, 1.6 parts of defoaming agent, 15 parts of wetting agent and 0.4 part of mildew preventive.
5. The large-gap asphalt pavement water seepage test hole blocking prevention ultra-light sealing material as claimed in claim 4, is characterized in that: the binder is polyvinyl alcohol; the coloring agent is one or the combination of carbon black and rubber carbon black; the defoaming agent is modified silicon polydimethylsiloxane; the wetting agent is one or the combination of glycerol, propylene glycol, glycerin, polyethylene glycol, sorbitol, tripropylene glycol, vegetable oil and mineral oil; the mildew preventive is one or a combination of isothiazoline bactericides and carbazone.
6. The large-gap asphalt pavement water seepage test hole blocking prevention ultra-light sealing material as claimed in claim 1, is characterized in that: the particle size of the filler is 2-100 mu m.
7. The preparation method of the pore blocking preventing ultra-light sealing material for the large-gap asphalt pavement water seepage test in claim 1 is characterized by comprising the following steps:
(1) taking out the binder according to the weight part of the formula, putting the binder into a reaction kettle, stirring at a constant temperature until the binder particles are completely melted, cooling, adding the filler and the defoaming agent in the corresponding formula amount into a mixer to mix and stir until the mixture is uniform, and fully performing foaming expansion reaction to obtain a first mixture;
(2) adding the first mixture, water and a gelling agent in a formula amount into a mixer, and mixing and stirring until the mixture is uniform to obtain a second mixture;
(3) and adding the second mixture, the waterproof putty, the wetting agent, the coloring agent and the mildew preventive into a mixer according to the formula ratio, and mixing and stirring until the mixture is uniform.
8. The preparation method of the pore blocking preventing ultra-light sealing material for the large-gap asphalt pavement water seepage test according to claim 7, which is characterized in that the constant temperature in the step (1) is 100 ℃, the mixing and stirring speed is 600-800 r/min, and the time is 20 min.
9. The preparation method of the pore blocking preventing ultra-light sealing material for the large-gap asphalt pavement water seepage test according to claim 7, wherein the mixing and stirring speed in the step (2) is 400-600 r/min, and the time is 10 min.
10. The preparation method of the pore blocking preventing ultra-light sealing material for the large-gap asphalt pavement water seepage test according to claim 7, wherein the mixing and stirring speed in the step (3) is 600-800 r/min, and the time is 30 min.
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| CN117388145A (en) * | 2023-10-11 | 2024-01-12 | 保利长大工程有限公司 | Sealing method for detecting pavement water seepage coefficient |
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