CN116715453A - Production process method of asphalt concrete reinforced chopped glass fiber - Google Patents
Production process method of asphalt concrete reinforced chopped glass fiber Download PDFInfo
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- CN116715453A CN116715453A CN202310451769.4A CN202310451769A CN116715453A CN 116715453 A CN116715453 A CN 116715453A CN 202310451769 A CN202310451769 A CN 202310451769A CN 116715453 A CN116715453 A CN 116715453A
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- 239000003365 glass fiber Substances 0.000 title claims abstract description 96
- 239000011384 asphalt concrete Substances 0.000 title claims abstract description 25
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 13
- 238000000034 method Methods 0.000 title claims abstract description 13
- 239000000203 mixture Substances 0.000 claims abstract description 26
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 18
- 238000004140 cleaning Methods 0.000 claims description 24
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 14
- 238000001035 drying Methods 0.000 claims description 10
- 150000007522 mineralic acids Chemical class 0.000 claims description 10
- 239000007788 liquid Substances 0.000 claims description 9
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 8
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 8
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 claims description 7
- 235000011114 ammonium hydroxide Nutrition 0.000 claims description 7
- 238000001816 cooling Methods 0.000 claims description 7
- 238000003756 stirring Methods 0.000 claims description 6
- CPUDPFPXCZDNGI-UHFFFAOYSA-N triethoxy(methyl)silane Chemical compound CCO[Si](C)(OCC)OCC CPUDPFPXCZDNGI-UHFFFAOYSA-N 0.000 claims description 6
- MSRJTTSHWYDFIU-UHFFFAOYSA-N octyltriethoxysilane Chemical compound CCCCCCCC[Si](OCC)(OCC)OCC MSRJTTSHWYDFIU-UHFFFAOYSA-N 0.000 claims description 5
- 229960003493 octyltriethoxysilane Drugs 0.000 claims description 5
- 238000010438 heat treatment Methods 0.000 claims description 2
- 230000008569 process Effects 0.000 claims description 2
- 238000005406 washing Methods 0.000 claims description 2
- 239000010426 asphalt Substances 0.000 abstract description 46
- 238000010521 absorption reaction Methods 0.000 abstract description 15
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- 238000006482 condensation reaction Methods 0.000 abstract description 3
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- 239000003921 oil Substances 0.000 description 8
- 239000003350 kerosene Substances 0.000 description 7
- 239000002657 fibrous material Substances 0.000 description 6
- 229910052500 inorganic mineral Inorganic materials 0.000 description 6
- 239000011707 mineral Substances 0.000 description 6
- 239000002994 raw material Substances 0.000 description 6
- 239000002131 composite material Substances 0.000 description 4
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 4
- 238000005452 bending Methods 0.000 description 3
- 238000005056 compaction Methods 0.000 description 3
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- 239000004576 sand Substances 0.000 description 3
- 238000010257 thawing Methods 0.000 description 3
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 2
- 235000017491 Bambusa tulda Nutrition 0.000 description 2
- 241001330002 Bambuseae Species 0.000 description 2
- 229920000742 Cotton Polymers 0.000 description 2
- 235000019738 Limestone Nutrition 0.000 description 2
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 239000011425 bamboo Substances 0.000 description 2
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- 230000003014 reinforcing effect Effects 0.000 description 2
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- 239000010902 straw Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- 241000234276 Curculigo Species 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 238000005054 agglomeration Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
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- 230000003667 anti-reflective effect Effects 0.000 description 1
- 239000010425 asbestos Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 239000012459 cleaning agent Substances 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 description 1
- 239000003779 heat-resistant material Substances 0.000 description 1
- 230000003301 hydrolyzing effect Effects 0.000 description 1
- 230000002209 hydrophobic effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000010348 incorporation Methods 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 239000002557 mineral fiber Substances 0.000 description 1
- 125000002347 octyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
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- 229910052710 silicon Inorganic materials 0.000 description 1
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C25/00—Surface treatment of fibres or filaments made from glass, minerals or slags
- C03C25/10—Coating
- C03C25/1025—Coating to obtain fibres used for reinforcing cement-based products
- C03C25/103—Organic coatings
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B20/00—Use of materials as fillers for mortars, concrete or artificial stone according to more than one of groups C04B14/00 - C04B18/00 and characterised by shape or grain distribution; Treatment of materials according to more than one of the groups C04B14/00 - C04B18/00 specially adapted to enhance their filling properties in mortars, concrete or artificial stone; Expanding or defibrillating materials
- C04B20/10—Coating or impregnating
- C04B20/1051—Organo-metallic compounds; Organo-silicon compounds, e.g. bentone
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B26/00—Compositions of mortars, concrete or artificial stone, containing only organic binders, e.g. polymer or resin concrete
- C04B26/02—Macromolecular compounds
- C04B26/26—Bituminous materials, e.g. tar, pitch
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
- C04B2111/0075—Uses not provided for elsewhere in C04B2111/00 for road construction
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/20—Resistance against chemical, physical or biological attack
- C04B2111/2038—Resistance against physical degradation
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/34—Non-shrinking or non-cracking materials
- C04B2111/343—Crack resistant materials
Abstract
The invention discloses a production process method of asphalt concrete reinforced chopped glass fibers, which belongs to the technical field of glass fiber processing, utilizes a treatment fluid to carry out hydrolysis condensation reaction, improves the lipophilicity of the glass fibers, obviously improves the oil absorption rate of the modified glass fibers, has better compatibility with asphalt, is not easy to generate segregation and oil-flooding phenomena under the high-temperature condition of asphalt, and indirectly and effectively improves the high-temperature stability of a mixture, thereby improving the tensile strength and the high-temperature performance of the asphalt mixture and improving the anti-aging oxidation capability of an asphalt pavement. The treated glass fiber surface has good dispersibility, can be uniformly mixed with asphalt, can promote the reinforcement effect and oil absorption effect, is convenient to construct, has good crack resistance, is difficult to cause diseases such as polishing, pits, waves, hugs and the like, has low cost, is easy to control and is easy to popularize. The untreated glass fiber has high hydrophilicity, is easy to absorb moisture, is easy to absorb water and agglomerate, and has poor dispersibility.
Description
Technical Field
The invention belongs to the technical field of glass fiber processing, and particularly relates to a production process method of asphalt concrete reinforced chopped glass fibers.
Background
SMA technology was formally introduced into china in 1991 and a series of experimental studies were performed, but because SMA is a skeletal compact structure, high strength aggregate is required, and most of the aggregates in the places do not meet the requirements, the cost would be greatly increased if purchased from the outside. In addition, the SMA technology has very high construction requirements, and the cracking problem of the North China asphalt pavement is not completely solved, so that the application range is limited. The research and study for incorporating fibrous materials into asphalt mixtures originated in the middle of the 20 th century, and the main purpose was to prevent the occurrence of reflective cracks in asphalt concrete pavement. Toraldo et al comparatively systematically analyzed the effect of the incorporation of fiber materials on the control of anti-reflective cracking of asphalt concrete pavement. The Masri et al select green bamboo fiber and blend into SMA to obtain the best bamboo fiber blending amount of 0.5% after the relevant test. Zhang Jie et al describe two fibrous materials used to modify asphalt mixtures and illustrate the importance of fibrous materials as asphalt pavement additives by way of related engineering examples. Liao Huanxuan cotton straw in Xinjiang is used for preparing cotton straw fibers by mechanical processing, and the fiber material is mixed into asphalt mixture for relevant indoor tests, so that the result shows that the high-low temperature performance of the composite material is remarkably improved. Wang Xiushan and the like consider that ceramic fibers have the potential to enhance the high-temperature stability of the mixture as a heat-resistant material. Although there are many types of fiber materials commonly used in the market, fibers which can be actually used in road materials are generally mainly carbon fibers, synthetic fibers, and the like. Chopped glass fibers are a large class of glass fiber products that have been used primarily as reinforcing materials, such as reinforced thermosets and reinforced thermoplastics, and have been used in ever increasing numbers as the field of application has been expanding. The asphalt is heated and dissolved in advance and then put into a corresponding concave mould groove; then tiling and adding grid type glass fiber for synthesis; and (5) putting the glass fiber asphalt composite convex rubber plate into a corresponding concave mould groove for cooling to form the glass fiber asphalt composite convex rubber plate. Chinese patent CN86102635.7 discloses a reinforcing interlining such as glass fiber cloth, formerly known as asphalt glass fiber felt or cloth, for use in making asphalt roofing sealing rolls, in fact a water-resistant roll, now known as asphalt glass fiber mat. Not chopped glass fibers, nor asphalt concrete. The chopped glass fibers are all formed by processing continuous glass fibers through a chopping machine. In order to solve the problems of poor dispersibility of the chopped glass fibers, low mechanical property and reduced appearance performance of the filled asphalt concrete. Those skilled in the art are urgent to develop a process for producing asphalt concrete reinforced chopped glass fibers to meet the existing application market and performance requirements.
Disclosure of Invention
In view of the above, the invention provides a production process method of asphalt concrete reinforced chopped glass fibers.
Asphalt concrete is a multiphase composite material formed by mixing graded aggregate and asphalt according to a certain proportion, has the advantages of excellent seepage-proofing performance and strong deformation adaptability, and can be used as a material of seepage-proofing structures such as panels, core walls and the like in earth-rock dam engineering.
Chopped glass fibers are produced by cutting continuous glass fiber roving into short filament segments.
A production process method of asphalt concrete reinforced chopped glass fibers comprises the following steps: the method comprises the steps of firstly, carrying out heat treatment on chopped glass fibers at 400-450 ℃ for 0.5-1 h, then carrying out a cleaning procedure, cleaning in a cleaning liquid for 5-10 min, then washing with clear water, and drying at 80-90 ℃ for 5-6 h for later use: secondly, placing the dried chopped glass fibers into an inorganic acid solution for treatment, and then cleaning and drying again according to the cleaning step in the first step; thirdly, immersing the dried chopped glass fibers into the mixed treatment liquid according to a certain bath ratio, stirring for 20-25 min, and taking out and draining the chopped glass fibers; and fourthly, fishing out the chopped glass fibers obtained in the third step, baking for 10-12 min at the baking temperature of 140-150 ℃ and cooling to 25-30 ℃ to obtain the finished product.
Further, the second step of inorganic acid solution is 3-3.5 mol/L hydrochloric acid solution or 3-5 mol/L sulfuric acid solution, the treatment time is 5-6 h, and the treatment temperature is 60-80 ℃.
Further, the baking temperature in the third step is 140-150 ℃.
Further, the third mixed treatment solution comprises, by weight, 35-40 parts of methyltriethoxysilane or octyltriethoxysilane, 120-140 parts of ethanol, 12-14 parts of water and 6-8 parts of ammonia water with the mass concentration of 10% -14%.
Methyltriethoxysilane is an intermediate raw material, and has been used in the past to prepare silicone resins and other resins.
Further, the length of the chopped glass fiber is 3-12 mm, and the diameter is 10-14 mu m.
Further, the bath ratio of the third step is 1:3-5.
The bath ratio refers to the weight ratio of glass fibers to treatment fluid.
The invention has the beneficial effects that:
the invention uses methyltriethoxysilane or octyltriethoxysilane to carry out hydrolytic condensation reaction in a treatment system with ethanol as solvent, water and ammonia water as catalyst, and firstly hydrolyzes to form octyl-Si (OH) or CH 3 Si (OH) with the surface of glass fiber being covered with active hydroxyl groups, octyl-Si (OH) or CH after hydrolysis 3 The hydroxyl groups of Si (OH) can be subjected to condensation reaction with the hydroxyl groups on the surface of the glass fiber, and the residual hydroxyl groups on the surface of the fiber are condensed in the drying process of the glass fiber filtering membrane, so that the surface of the glass fiber is fully covered with the-CH 3 groups and octyl groups with hydrophobic and oleophylic properties, a nano-bulge structure is formed on the surface of the glass fiber through chemical bonding action deposition, the lipophilicity of the glass fiber is improved, the oil absorption rate of the modified glass fiber is obviously improved, the compatibility with asphalt is better, the segregation and oiling phenomena of asphalt are easy to occur under the high-temperature condition, and the high-temperature stability of the mixture is indirectly and effectively improved. Untreated glass fibers have high hydrophilicity, are easy to absorb moisture, are easy to absorb water and agglomerate, and have poor dispersibility. The tensile strength of the asphalt mixture can be increased, the high-temperature performance can be improved, the asphalt content can be increased, the thickness of an oil film can be increased, and meanwhile, the improvement is realizedAnti-aging oxidation ability of asphalt pavement. The glass fiber surface has good dispersibility after being treated, can be uniformly mixed with asphalt, can serve as the effects of reinforcing ribs and absorbing oil, and is basically consistent with other fiber asphalt mixtures in construction convenience. The glass fiber is inert and chemically reacts with asphalt, so that the aging oxidation of asphalt films is restrained, the attached asphalt films and aggregates can be well bonded, and the damage degree of pavement is reduced.
Compared with the prior art, the invention has the following advantages:
the invention discloses a production process method of asphalt concrete reinforced chopped glass fiber, which has good physical and chemical properties, can not only make up the defects of low strength, low elastic modulus and poor high-temperature performance of organic fiber, but also recycle and reuse, and avoids the defects of threatening environment and human body of mineral fiber such as asbestos and the like, and is renewable. Compared with the common asphalt concrete pavement, the glass fiber asphalt concrete pavement has long service life and good crack resistance, and is not easy to cause diseases such as polishing, pits, waves, and the like. Compared with SMA pavement, the glass fiber asphalt concrete pavement has low cost, low construction difficulty, easy quality control, low requirement on raw materials and easy popularization.
Description of the embodiments
Examples
Chopped glass fibers were WJ1001-103 fibers manufactured by Weijia composite Co., ltd., nominal diameter of 10 μm and a chopped length of 3.0mm. The cleaning solution is a water solution of a Xinyang XY91 glass cleaning agent with the mass fraction of 1.5 percent. Firstly, heat treating chopped glass fibers at 450 ℃ for 1h, cleaning in a cleaning solution for 10min, and drying at 90 ℃ for 6h for later use: secondly, placing the dried chopped glass fibers in an acid solution and treating for 10min, wherein the acid solution is hydrochloric acid solution with the concentration of 3.55mol/L, the treatment time is 6h, the treatment temperature is 80 ℃, and then cleaning and drying are carried out again according to the cleaning step in the step one; thirdly, immersing the dried chopped glass fibers into a mixed treatment liquid consisting of 40 parts of Anhui and county silicon treasure GX-137 octyl triethoxysilane, 140 parts of ethanol, 14 parts of water and 8 parts of ammonia water with the mass concentration of 14%, stirring at 200rpm for 25min, and taking out and draining the chopped glass fibers; and fourthly, fishing out the chopped glass fibers obtained in the third step, baking for 12min at a baking temperature of 150 ℃, and cooling to 30 ℃ to obtain the finished product.
Product kerosene absorption rate: 53.4% and water content of 0.15%.
Comparative example 1
Untreated chopped glass fiber raw material of example 1.
Product kerosene absorption rate: 34.3%.
Examples
Chopped glass fibers WJ101-3 fibers of WJ.county Weijia composite Co., ltd, nominal diameter 10 μm and short cut length 6mm.
The first step, the chopped glass fiber is heat treated for 0.5h at 400 ℃, then cleaned in a cleaning solution for 5min, and dried for 5h at 80 ℃ for later use: secondly, placing the dried chopped glass fibers in an inorganic acid solution and treating for 5min, wherein the inorganic acid solution is a hydrochloric acid solution with the concentration of 3mol/L, the treatment time is 5h, the treatment temperature is 60 ℃, and then cleaning and drying are carried out again according to the cleaning step in the step one; thirdly, immersing the dried chopped glass fibers into a mixed treatment liquid consisting of 35 parts of Chen-G-801 octyl triethoxysilane, 120 parts of ethanol, 12 parts of water and 6 parts of ammonia water with the mass concentration of 10%, wherein the bath ratio is 1:3, stirring at 100rpm for 20min, and fishing out and draining the chopped glass fibers; and fourthly, fishing out the chopped glass fibers obtained in the third step, baking for 10min at the baking temperature of 140 ℃, and cooling to 25 ℃ to obtain the finished product.
Product kerosene absorption rate: 52.9% and 0.15% of water content.
Comparative example 2
Untreated chopped glass fiber raw material of example 2.
Product kerosene absorption rate: 34.2%.
Examples
Chopped glass fibers WJ101-3 of WJ 13 μm in nominal diameter and 9mm in chopped length.
The first step, the chopped glass fiber is heat treated for 0.8h at 420 ℃, then is cleaned in a cleaning solution for 7min, and is dried for 5.5h at 85 ℃ for standby: secondly, placing the dried chopped glass fibers in an inorganic acid solution and treating for 7min, wherein the inorganic acid solution is sulfuric acid solution with the concentration of 3.3mol/L, the treatment time is 5.5h, the treatment temperature is 70 ℃, and then cleaning and drying are carried out again according to the cleaning step in the step one; thirdly, immersing the dried chopped glass fibers into a mixed treatment liquid consisting of 37 parts of Chen-light CG-106 methyltriethoxysilane, 130 parts of ethanol, 13 parts of water and 7 parts of ammonia water with the mass concentration of 12%, stirring at 100rpm for 20min, and taking out and draining the chopped glass fibers; and fourthly, fishing out the chopped glass fibers obtained in the third step, baking for 11min at the baking temperature of 145 ℃, and cooling to 28 ℃ to obtain the finished product.
Product kerosene absorption rate: 52.7% and water content of 0.15%.
Comparative example 3
Untreated chopped glass fiber raw material of example 3.
Oil absorption rate of the product: 33.9%.
Examples
Chopped glass fibers WJ101-3 of WJ, inc. of Uygur autonomous region, have a nominal diameter of 14 μm and a chopped length of 12mm.
The first step, the chopped glass fiber is heat treated for 0.5h at 450 ℃, then is cleaned and treated for 8min in a cleaning solution, and is dried for 5h at 80 ℃ for standby: secondly, placing the dried chopped glass fibers in an inorganic acid solution and treating for 5min, wherein the inorganic acid solution is sulfuric acid solution with the concentration of 3.5mol/L, the treatment time is 5h, the treatment temperature is 60 ℃, and then cleaning and drying are carried out again according to the cleaning step in the step one; thirdly, immersing the dried chopped glass fibers into a mixed treatment liquid consisting of 35 parts of curculigo rhizome new blue sky D-150 methyltriethoxysilane, 120 parts of ethanol, 12 parts of water and 6 parts of ammonia water with the mass concentration of 10%, stirring at the rotating speed of 00rpm for 23min, and taking out and draining the chopped glass fibers; and fourthly, fishing out the chopped glass fibers obtained in the third step, baking for 10min at the baking temperature of 140 ℃, and cooling to 25 ℃ to obtain the finished product.
Product kerosene absorption rate: 52.3% and water content of 0.15%.
Comparative example 4
Untreated chopped glass fiber raw material of example 4.
Product kerosene absorption rate: 33.7%.
In summary, it can be seen that the oil absorption of the modified glass fiber is significantly improved. The untreated glass fibers of comparative examples 1 to 4 had slightly reduced oil absorption as the length increased, presumably because the length was longer, the total specific surface area was reduced, and the oil absorption was slightly reduced. The glass fibers of untreated comparative examples 1 to 4 are high in hydrophilicity, easy to absorb moisture, easy to absorb water and agglomerate, and poor in dispersibility, and can be obtained according to experimental phenomena.
The oil absorption rate of the modified examples 1-4 is obviously improved, the compatibility is better, segregation and oil-flashing phenomena of asphalt are easy to occur under the high-temperature condition, and the high-temperature stability of the mixture is indirectly and effectively improved.
The glass fibers of examples 1-4 and comparative examples 1-4 were mixed into asphalt concrete mixtures at 0.3%, 0.4%, 0.5%, and the results of testing the residual stability of water-immersion Marshall, bending fracture strain, freeze thawing split residual strength ratio, and dynamic compression modulus are shown in tables 1-8.
TABLE 1 results of the Marshall test for immersion of asphalt mixtures of examples 1-4 PAC-13
TABLE 2 bending failure strain test results for asphalt mixtures of examples 1-4 PAC-13
TABLE 3 freeze thawing cleavage test results for asphalt mixtures of examples 1-4 PAC-13
TABLE 4 dynamic compression modulus test results for asphalt mixtures of examples 1-4 PAC-13
Table 5 results of the Marshall test for asphalt mixtures of comparative examples 1-4 PAC-13
Table 6 comparative examples 1 to 4PAC-13 asphalt mixtures bending failure strain test results
Table 7 comparative examples 1-4 PAC-13 asphalt mixtures freeze thawing cleavage test results
Table 8 comparative examples 1-4 PAC-13 asphalt mixtures dynamic compression modulus test results
Note that: the test mineral aggregate adopts Mo Botian-hong building material product meeting JTGF40-2004 standard requirements, limestone gravels of 15-25 mm, 10-15 mm and 5-10 mm, machine-made sand of 0-5 mm and density of 2.86g/cm 3 Specific surface area 416m 2 Kg0.075mm passing rate 85.9% Jiangsu long-source building material CYKF limestone mineral powder. Wherein the mineral aggregate is graded as follows:
the asphalt consumption is 4.9%, the heated aggregate is dry-mixed for 15s, then the glass fiber of the comparative examples 1-4 is dry-mixed for 30 s at one time, then asphalt is added for 90s, finally mineral powder is added for 60s, all mineral aggregate particles are fully wrapped with asphalt binder, no flower white materials and no fiber agglomeration are caused, the asphalt is Korla petrochemical 90# and the mixing temperature is 185 ℃, and the asphalt mixture test piece is prepared by referring to Marshall compaction method and wheel milling method in JTG E20-2011. Marshall test pieces were sized 101.6 mm ×63.5 mm, compaction temperature 160 ℃, and double sided compaction 75 times. Reference is made to the JTG E20-2011 highway engineering asphalt and asphalt mix test protocol.
Wherein the machine-made sand is a Hubei Yuanchang mineral machine-made sand product meeting the II-type requirements in GB/T14684-2001:
in summary, the production process of the asphalt concrete reinforced chopped glass fiber disclosed by the invention can be seen that the processed chopped glass fiber can effectively improve the performance of an asphalt mixture, and compared with an plain asphalt mixture and an untreated glass fiber asphalt mixture, the asphalt concrete reinforced chopped glass fiber has the advantages of obviously improved strength and crack resistance, lower cost, simplicity and convenience in operation and good market practical prospect.
Claims (6)
1. The production process of the asphalt concrete reinforced chopped glass fiber is characterized by comprising the following steps of: the method comprises the steps of firstly, carrying out heat treatment on chopped glass fibers at 400-450 ℃ for 0.5-1 h, then carrying out a cleaning procedure, cleaning in a cleaning liquid for 5-10 min, then washing with clear water, and drying at 80-90 ℃ for 5-6 h for later use: secondly, placing the dried chopped glass fibers into an inorganic acid solution for treatment, and then cleaning and drying again according to the cleaning step in the first step; thirdly, immersing the dried chopped glass fibers into the mixed treatment liquid according to a certain bath ratio, stirring for 20-25 min, and taking out and draining the chopped glass fibers; and fourthly, fishing out the chopped glass fibers obtained in the third step, baking for 10-12 min at the baking temperature of 140-150 ℃ and cooling to 25-30 ℃ to obtain the finished product.
2. The production process of asphalt concrete reinforced chopped glass fibers according to claim 1, wherein the second-step inorganic acid solution is 3-3.55 mol/L hydrochloric acid solution or 3-5 mol/L sulfuric acid solution, the treatment time is 5-6 h, and the treatment temperature is 60-80 ℃.
3. The production process of asphalt concrete reinforced chopped glass fiber according to claim 1, wherein the baking temperature of the third step is 140-150 ℃.
4. The production process method of the asphalt concrete reinforced chopped glass fiber is characterized in that the composition of the mixed treatment liquid in the third step comprises 35-40 parts by weight of methyltriethoxysilane or octyltriethoxysilane, 120-140 parts by weight of ethanol, 12-14 parts by weight of water and 6-8 parts by weight of ammonia water with the mass concentration of 10% -14%.
5. The method for producing asphalt concrete reinforced chopped glass fibers according to claim 1, wherein the length of the chopped glass fibers is 3-12 mm and the diameter is 10-14 μm.
6. The process for producing asphalt concrete reinforced chopped glass fibers according to claim 1, wherein the bath ratio in the third step is 1:3-5.
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107117871A (en) * | 2017-06-02 | 2017-09-01 | 扬州大学 | The chopped asphalts of basalt fibre OGFC 13 of one kind incorporation |
| CN111847988A (en) * | 2020-08-05 | 2020-10-30 | 胡剑安 | Waterproof high-strength basalt fiber asphalt mixture and preparation method thereof |
| CN112374806A (en) * | 2020-11-16 | 2021-02-19 | 中交建冀交高速公路投资发展有限公司 | Glass fiber rubber modified asphalt mixture and preparation method thereof |
| CN115724615A (en) * | 2022-11-28 | 2023-03-03 | 中交一公局第八工程有限公司 | Preparation method of water-loss-aging-resistant concrete asphalt pavement |
-
2023
- 2023-04-25 CN CN202310451769.4A patent/CN116715453A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107117871A (en) * | 2017-06-02 | 2017-09-01 | 扬州大学 | The chopped asphalts of basalt fibre OGFC 13 of one kind incorporation |
| CN111847988A (en) * | 2020-08-05 | 2020-10-30 | 胡剑安 | Waterproof high-strength basalt fiber asphalt mixture and preparation method thereof |
| CN112374806A (en) * | 2020-11-16 | 2021-02-19 | 中交建冀交高速公路投资发展有限公司 | Glass fiber rubber modified asphalt mixture and preparation method thereof |
| CN115724615A (en) * | 2022-11-28 | 2023-03-03 | 中交一公局第八工程有限公司 | Preparation method of water-loss-aging-resistant concrete asphalt pavement |
Non-Patent Citations (2)
| Title |
|---|
| 朱春凤: "玻璃纤维改善沥青混凝土性能的理论与实验研究", 《中国优秀硕士学位论文全文数据库-工程科技II辑》, 15 September 2007 (2007-09-15), pages 034 - 51 * |
| 腾翠青等: "《聚合物基复合材料》", 31 December 2021, 中国纺织出版社, pages: 211 * |
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