CN116004018A - Chemical grouting material for high-speed railway construction and method thereof - Google Patents
Chemical grouting material for high-speed railway construction and method thereof Download PDFInfo
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- CN116004018A CN116004018A CN202211672054.3A CN202211672054A CN116004018A CN 116004018 A CN116004018 A CN 116004018A CN 202211672054 A CN202211672054 A CN 202211672054A CN 116004018 A CN116004018 A CN 116004018A
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- 239000000463 material Substances 0.000 title claims abstract description 43
- 239000000126 substance Substances 0.000 title claims abstract description 32
- 238000010276 construction Methods 0.000 title claims abstract description 26
- 238000000034 method Methods 0.000 title claims abstract description 12
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims abstract description 57
- 229920002545 silicone oil Polymers 0.000 claims abstract description 55
- 239000003822 epoxy resin Substances 0.000 claims abstract description 44
- 229920000647 polyepoxide Polymers 0.000 claims abstract description 44
- 239000003054 catalyst Substances 0.000 claims abstract description 38
- 239000004014 plasticizer Substances 0.000 claims abstract description 31
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 claims abstract description 30
- HYBBIBNJHNGZAN-UHFFFAOYSA-N furfural Chemical compound O=CC1=CC=CO1 HYBBIBNJHNGZAN-UHFFFAOYSA-N 0.000 claims abstract description 30
- 239000012752 auxiliary agent Substances 0.000 claims abstract description 19
- 239000004593 Epoxy Substances 0.000 claims abstract description 17
- 229920000642 polymer Polymers 0.000 claims abstract description 17
- 239000004721 Polyphenylene oxide Substances 0.000 claims abstract description 15
- 229920000570 polyether Polymers 0.000 claims abstract description 15
- NBVXSUQYWXRMNV-UHFFFAOYSA-N fluoromethane Chemical compound FC NBVXSUQYWXRMNV-UHFFFAOYSA-N 0.000 claims abstract description 9
- 229910019142 PO4 Inorganic materials 0.000 claims abstract description 4
- 239000010452 phosphate Substances 0.000 claims abstract description 4
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 claims abstract description 4
- 238000002156 mixing Methods 0.000 claims description 30
- 238000003756 stirring Methods 0.000 claims description 24
- 239000003513 alkali Substances 0.000 claims description 12
- DOIRQSBPFJWKBE-UHFFFAOYSA-N dibutyl phthalate Chemical compound CCCCOC(=O)C1=CC=CC=C1C(=O)OCCCC DOIRQSBPFJWKBE-UHFFFAOYSA-N 0.000 claims description 12
- 238000010438 heat treatment Methods 0.000 claims description 12
- 238000002360 preparation method Methods 0.000 claims description 8
- MQIUGAXCHLFZKX-UHFFFAOYSA-N Di-n-octyl phthalate Natural products CCCCCCCCOC(=O)C1=CC=CC=C1C(=O)OCCCCCCCC MQIUGAXCHLFZKX-UHFFFAOYSA-N 0.000 claims description 6
- 239000002518 antifoaming agent Substances 0.000 claims description 6
- BJQHLKABXJIVAM-UHFFFAOYSA-N bis(2-ethylhexyl) phthalate Chemical compound CCCCC(CC)COC(=O)C1=CC=CC=C1C(=O)OCC(CC)CCCC BJQHLKABXJIVAM-UHFFFAOYSA-N 0.000 claims description 6
- 238000009835 boiling Methods 0.000 claims description 6
- 239000007822 coupling agent Substances 0.000 claims description 6
- HBGGXOJOCNVPFY-UHFFFAOYSA-N diisononyl phthalate Chemical compound CC(C)CCCCCCOC(=O)C1=CC=CC=C1C(=O)OCCCCCCC(C)C HBGGXOJOCNVPFY-UHFFFAOYSA-N 0.000 claims description 6
- 239000012188 paraffin wax Substances 0.000 claims description 6
- 229920005906 polyester polyol Polymers 0.000 claims description 6
- 229920005862 polyol Polymers 0.000 claims description 6
- 150000003077 polyols Chemical class 0.000 claims description 6
- 235000015112 vegetable and seed oil Nutrition 0.000 claims description 6
- 239000008158 vegetable oil Substances 0.000 claims description 6
- KRKNYBCHXYNGOX-UHFFFAOYSA-K Citrate Chemical compound [O-]C(=O)CC(O)(CC([O-])=O)C([O-])=O KRKNYBCHXYNGOX-UHFFFAOYSA-K 0.000 claims description 5
- 125000002524 organometallic group Chemical group 0.000 claims 1
- 229910052710 silicon Inorganic materials 0.000 abstract description 6
- 239000010703 silicon Substances 0.000 abstract description 6
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 abstract description 2
- 239000000243 solution Substances 0.000 description 16
- -1 amide Schiff base compound Chemical class 0.000 description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 7
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 5
- 239000002585 base Substances 0.000 description 5
- 229910052797 bismuth Inorganic materials 0.000 description 5
- JCXGWMGPZLAOME-UHFFFAOYSA-N bismuth atom Chemical compound [Bi] JCXGWMGPZLAOME-UHFFFAOYSA-N 0.000 description 5
- 229910052751 metal Inorganic materials 0.000 description 5
- 239000002184 metal Substances 0.000 description 5
- 125000002467 phosphate group Chemical group [H]OP(=O)(O[H])O[*] 0.000 description 5
- 239000002002 slurry Substances 0.000 description 5
- 239000012974 tin catalyst Substances 0.000 description 5
- 229910052725 zinc Inorganic materials 0.000 description 5
- 239000011701 zinc Substances 0.000 description 5
- RPNUMPOLZDHAAY-UHFFFAOYSA-N Diethylenetriamine Chemical compound NCCNCCN RPNUMPOLZDHAAY-UHFFFAOYSA-N 0.000 description 4
- 238000001746 injection moulding Methods 0.000 description 4
- 230000002787 reinforcement Effects 0.000 description 3
- 239000001667 (E)-4-furan-2-ylbut-3-en-2-one Substances 0.000 description 2
- GBKGJMYPQZODMI-SNAWJCMRSA-N (e)-4-(furan-2-yl)but-3-en-2-one Chemical compound CC(=O)\C=C\C1=CC=CO1 GBKGJMYPQZODMI-SNAWJCMRSA-N 0.000 description 2
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 description 2
- NIXOWILDQLNWCW-UHFFFAOYSA-N Acrylic acid Chemical class OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Natural products OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 description 2
- 239000012153 distilled water Substances 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 description 1
- 239000002262 Schiff base Substances 0.000 description 1
- 239000006087 Silane Coupling Agent Substances 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 239000003431 cross linking reagent Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000003085 diluting agent Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 239000003999 initiator Substances 0.000 description 1
- 239000004850 liquid epoxy resins (LERs) Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The invention provides a chemical grouting material for high-speed railway construction and a method thereof, wherein the chemical grouting material comprises a basic component A and a modified component B, and the chemical grouting material comprises the following components in parts by mass: the basic A component comprises: 30-40 parts of furfural, 20-25 parts of acetone and 20-50 parts of sodium hydroxide with the concentration of 50%; the weight portions are as follows: the modified component B comprises the following components: 60-80 parts of modified silicone oil, 5-10 parts of plasticizer, 2-4 parts of catalyst and 1-2 parts of auxiliary agent; according to the invention, the epoxy resin polymer is prepared from furfural and acetone, and then the polyether-based modified silicone oil, the phosphate-based modified silicone oil, the epoxy-based modified silicone oil, the fluorocarbon-based modified silicone oil and the epoxy resin polymer are heated and mixed respectively, so that organic silicon molecules penetrate into the epoxy resin, the toughness of the grouting material can be effectively improved, and the tensile strength and tensile strength of the epoxy resin are also greatly improved.
Description
Technical Field
The invention belongs to the technical field of railway construction, and relates to a chemical grouting material for high-speed railway construction and a method thereof.
Background
In the construction of a high-speed railway, the water seepage part and the deformation joint of the deformation inside the roadbed are required to be treated and repaired by chemical grouting materials, and application number 202110874652.8 discloses a high-elasticity acrylic acid salt grouting material and a preparation method and application thereof, wherein the component A is prepared from the following raw materials in parts by mass: 34.839 parts of acrylic acid, 9.615.7 parts of alkaline substances, 1.01.7 parts of crosslinking agent, 0.61.6 parts of accelerator and 42.7-54 parts of distilled water A; the component B is prepared from the following raw materials in parts by weight: 0.6-1.6 parts of initiator and B98.499.4 parts of distilled water, wherein the elongation at break of the high-elasticity acrylate grouting material prepared by the method is as high as 900%, and the water expansion rate is more than or equal to 60%, so that the high-elasticity acrylate grouting material can be used for treating and repairing the leakage water of deformation joints instead of imported products, and can also be used for curtain grouting and blocking the leakage water.
Application number 201610862145.1 discloses a high-permeability aqueous epoxy slurry, and a preparation method and application thereof. The slurry consists of A, B components, wherein the component A is: 15-40 wt% of liquid epoxy resin, 60-85 wt% of reactive diluent and 0-1 wt% of silane coupling agent; the component B is as follows: 40-80 wt% of aqueous amide Schiff base compound curing agent and 20-60 wt% of phenolic amine compound. When in use, the component A and the component B are uniformly mixed according to the mass ratio of 100:10-30 to obtain the high-permeability water-based epoxy slurry, and the slurry has excellent mechanical properties on a wet or dry base surface, and has wide application prospects in the engineering fields of hole sealing treatment of porous materials such as porous ceramics or porous resin molds, interface bonding treatment agents or waterproof plugging reinforcement chemical grouting and the like.
The furfural-acetone epoxy grouting material is one of important varieties of polymer chemical grouting materials, has been widely applied to reinforcement, anti-seepage treatment and protection of building cracks, and has the advantages of adjustable slurry viscosity and solidification time, high strength of a concretion body, strong adhesive force and the like, so that the grouting material has good effect when being applied to reinforcement and concretion of defects such as concrete or rock fine cracks, however, in various civil construction engineering, construction joints, expansion joints and various cracks with large expansion and contraction along with cold and hot changes of four seasons are often existed, and the common furfural-acetone epoxy grouting material is difficult to meet the related application performance requirements, so that the novel grouting material with higher elasticity and elongation and excellent adhesive strength with the concrete is needed.
Disclosure of Invention
The invention aims to provide a chemical grouting material for high-speed railway construction and a method thereof, which are used for solving the problems in the background technology.
The aim of the invention can be achieved by the following technical scheme:
the chemical grouting material for high-speed railway construction comprises a foundation A component and a modified B component, wherein,
the weight portions are as follows: the basic A component comprises: 30-40 parts of furfural, 20-25 parts of acetone and 20-50 parts of sodium hydroxide with the concentration of 50%;
the weight portions are as follows: the modified component B comprises the following components: 60-80 parts of modified silicone oil, 5-10 parts of plasticizer, 2-4 parts of catalyst and 1-2 parts of auxiliary agent.
In the chemical grouting material for high-speed railway construction and the method thereof, the modified silicone oil is polyether-based modified silicone oil, phosphate-based modified silicone oil, epoxy-based modified silicone oil or fluorocarbon-based modified silicone oil.
In the chemical grouting material for high-speed railway construction and the method thereof, the plasticizer is at least one of chlorinated paraffin, dioctyl phthalate, dibutyl phthalate, diisononyl phthalate, citric acid ester plasticizer, vegetable oil ester plasticizer, polyether polyol and polyester polyol.
In the chemical grouting material for high-speed railway construction and the method thereof, the auxiliary agent comprises 0-1 part of coupling agent and 0-1 part of defoaming agent, and the catalyst is an organic metal catalyst, and is preferably at least one of an organic zinc catalyst, an organic bismuth catalyst and an organic tin catalyst.
A preparation method of a chemical grouting material for high-speed railway construction comprises the following steps:
step one: sequentially adding 30-40 parts of furfural and 20-25 parts of acetone into mixing equipment, heating by a heating rod, then dropwise adding 50% sodium hydroxide alkali solution under mixing and stirring until the solution is boiling, and standing for 5min to generate an epoxy resin polymer;
step two: adding 60-80 components of modified silicone oil into the epoxy resin polymer generated in the step one, adjusting the mixing and stirring speed to 1000-1500 rpm, adding a plasticizer, a catalyst and an auxiliary agent, and reacting for 3-5h at 150 ℃.
In the chemical grouting material for high-speed railway construction and the method thereof, in the first step, the mixing and stirring temperature is 20-30 ℃, and the mixing and stirring speed of the dropwise adding of the sodium hydroxide strong alkali solution is 800-1200 rpm.
Compared with the prior art, the chemical grouting material for high-speed railway construction and the method thereof have the advantages that:
the epoxy resin polymer is prepared by adopting furfural and acetone, and then the polyether-based modified silicone oil, the phosphate-based modified silicone oil, the epoxy-based modified silicone oil, the fluorocarbon-based modified silicone oil and the epoxy resin polymer are heated and mixed respectively, so that organic silicon molecules penetrate into the epoxy resin, the toughness of the grouting material can be effectively improved, and meanwhile, the tensile strength and the tensile strength of the epoxy resin are also greatly improved.
Detailed Description
The following are specific examples of the present invention, and the technical solutions of the present invention are further described, but the present invention is not limited to these examples.
Embodiment one:
the chemical grouting material for high-speed railway construction includes base A component and modified B component,
the weight portions are as follows: the basic A component comprises: 30-40 parts of furfural, 20-25 parts of acetone and 20-50 parts of sodium hydroxide with the concentration of 50%;
the weight portions are as follows: the modified component B comprises the following components: 60-80 parts of modified silicone oil, 5-10 parts of plasticizer, 2-4 parts of catalyst and 1-2 parts of auxiliary agent.
The concrete preparation method of the chemical grouting material comprises the following steps:
step one: sequentially adding 30-40 parts of furfural and 20-25 parts of acetone into mixing equipment, heating by a heating rod, then dropwise adding 50% sodium hydroxide alkali solution under mixing and stirring until the solution is boiling, and standing for 5min to generate an epoxy resin polymer;
wherein, the mixing and stirring temperature is controlled to be 20-30 ℃, and the mixing and stirring speed of the dropwise adding of the sodium hydroxide strong alkali solution is 800-1200 r/min;
step two: adding 60-80 parts of modified silicone oil into the epoxy resin polymer generated in the step one, adjusting the mixing and stirring speed to 1000-1500 r/min, adding a plasticizer, a catalyst and an auxiliary agent, and reacting for 3-5h at 150 ℃ to obtain the organic silicon modified furfural acetone epoxy grouting material, wherein the auxiliary agent comprises 0-1 part of a coupling agent and 0-1 part of a defoaming agent, the catalyst is an organic metal catalyst, and is preferably at least one of an organic zinc catalyst, an organic bismuth catalyst and an organic tin catalyst, and the plasticizer is at least one of chlorinated paraffin, dioctyl phthalate, dibutyl phthalate, diisononyl phthalate, a citrate plasticizer, a vegetable oil plasticizer, polyether polyol and polyester polyol.
The modified silicone oil is polyether-based modified silicone oil, the mass ratio of the polyether-based modified silicone oil to the epoxy resin is kept at 60:10, 70:10 and 80:10, then the modified epoxy resin is cured by diethylenetriamine, and the modified epoxy resin is subjected to injection molding after being kept for 25-30 days; the mechanical properties are tested, and the test results are as follows:
when the mass ratio of the polyether-based modified silicone oil to the epoxy resin is 60:10, the tensile strength is 20.34Mpa, the bonding strength is 2.16Mpa, and the tensile strength is 25.84;
when the mass ratio of the polyether-based modified silicone oil to the epoxy resin is 70:10, the tensile strength is 40.14Mpa, the bonding strength is 3.66Mpa, and the tensile strength is 36.84;
when the mass ratio of the polyether-based modified silicone oil to the epoxy resin is 80:10, the tensile strength is 60.74Mpa, the bonding strength is 4.2Mpa, and the tensile strength is 86.84.
Embodiment two:
the chemical grouting material for high-speed railway construction includes base A component and modified B component,
the weight portions are as follows: the basic A component comprises: 30-40 parts of furfural, 20-25 parts of acetone and 20-50 parts of sodium hydroxide with the concentration of 50%;
the weight portions are as follows: the modified component B comprises the following components: 60-80 parts of modified silicone oil, 5-10 parts of plasticizer, 2-4 parts of catalyst and 1-2 parts of auxiliary agent.
The concrete preparation method of the chemical grouting material comprises the following steps:
step one: sequentially adding 30-40 parts of furfural and 20-25 parts of acetone into mixing equipment, heating by a heating rod, then dropwise adding 50% sodium hydroxide alkali solution under mixing and stirring until the solution is boiling, and standing for 5min to generate an epoxy resin polymer;
wherein, the mixing and stirring temperature is controlled to be 20-30 ℃, and the mixing and stirring speed of the dropwise adding of the sodium hydroxide strong alkali solution is 800-1200 r/min;
step two: adding 60-80 parts of modified silicone oil into the epoxy resin polymer generated in the step one, adjusting the mixing and stirring speed to 1000-1500 r/min, adding a plasticizer, a catalyst and an auxiliary agent, and reacting for 3-5h at 150 ℃ to obtain the organic silicon modified furfural acetone epoxy grouting material, wherein the auxiliary agent comprises 0-1 part of a coupling agent and 0-1 part of a defoaming agent, the catalyst is an organic metal catalyst, and is preferably at least one of an organic zinc catalyst, an organic bismuth catalyst and an organic tin catalyst, and the plasticizer is at least one of chlorinated paraffin, dioctyl phthalate, dibutyl phthalate, diisononyl phthalate, a citrate plasticizer, a vegetable oil plasticizer, polyether polyol and polyester polyol.
The modified silicone oil is phosphate group modified silicone oil, the mass ratio of the phosphate group modified silicone oil to the epoxy resin is kept at 60:10, 70:10 and 80:10, then the modified epoxy resin is cured by diethylenetriamine, and the modified epoxy resin is subjected to injection molding after being kept for 25-30 days; the mechanical properties are tested, and the test results are as follows:
when the mass ratio of the phosphate group modified silicone oil to the epoxy resin is 60:10, the tensile strength is 19.51Mpa, the bonding strength is 3.26Mpa, and the tensile strength is 23.32;
when the mass ratio of the phosphate group modified silicone oil to the epoxy resin is 70:10, the tensile strength is 42.78Mpa, the bonding strength is 3.68Mpa, and the tensile strength is 53.81;
when the mass ratio of the phosphate group modified silicone oil to the epoxy resin is 80:10, the tensile strength is 50.89Mpa, the bonding strength is 5.65Mpa, and the tensile strength is 70.38.
Embodiment III:
the chemical grouting material for high-speed railway construction includes base A component and modified B component,
the weight portions are as follows: the basic A component comprises: 30-40 parts of furfural, 20-25 parts of acetone and 20-50 parts of sodium hydroxide with the concentration of 50%;
the weight portions are as follows: the modified component B comprises the following components: 60-80 parts of modified silicone oil, 5-10 parts of plasticizer, 2-4 parts of catalyst and 1-2 parts of auxiliary agent.
The concrete preparation method of the chemical grouting material comprises the following steps:
step one: sequentially adding 30-40 parts of furfural and 20-25 parts of acetone into mixing equipment, heating by a heating rod, then dropwise adding 50% sodium hydroxide alkali solution under mixing and stirring until the solution is boiling, and standing for 5min to generate an epoxy resin polymer;
wherein, the mixing and stirring temperature is controlled to be 20-30 ℃, and the mixing and stirring speed of the dropwise adding of the sodium hydroxide strong alkali solution is 800-1200 r/min;
step two: adding 60-80 parts of modified silicone oil into the epoxy resin polymer generated in the step one, adjusting the mixing and stirring speed to 1000-1500 r/min, adding a plasticizer, a catalyst and an auxiliary agent, and reacting for 3-5h at 150 ℃ to obtain the organic silicon modified furfural acetone epoxy grouting material, wherein the auxiliary agent comprises 0-1 part of a coupling agent and 0-1 part of a defoaming agent, the catalyst is an organic metal catalyst, and is preferably at least one of an organic zinc catalyst, an organic bismuth catalyst and an organic tin catalyst, and the plasticizer is at least one of chlorinated paraffin, dioctyl phthalate, dibutyl phthalate, diisononyl phthalate, a citrate plasticizer, a vegetable oil plasticizer, polyether polyol and polyester polyol.
The modified silicone oil is epoxy modified silicone oil, the mass ratio of the epoxy modified silicone oil to the epoxy resin is kept at 60:10, 70:10 and 80:10, then the modified epoxy resin is cured by diethylenetriamine, and the epoxy resin is subjected to injection molding after being kept for 25-30 days; the mechanical properties are tested, and the test results are as follows:
when the mass ratio of the epoxy modified silicone oil to the epoxy resin is 60:10, the tensile strength is 21.36Mpa, the bonding strength is 3.24Mpa, and the tensile strength is 27.14;
when the mass ratio of the epoxy modified silicone oil to the epoxy resin is 70:10, the tensile strength is 37.28Mpa, the bonding strength is 4.13Mpa, and the tensile strength is 44.82;
when the mass ratio of the epoxy modified silicone oil to the epoxy resin is 80:10, the tensile strength is 67.74Mpa, the bonding strength is 5.26Mpa and the tensile strength is 79.76.
Embodiment four:
the chemical grouting material for high-speed railway construction includes base A component and modified B component,
the weight portions are as follows: the basic A component comprises: 30-40 parts of furfural, 20-25 parts of acetone and 20-50 parts of sodium hydroxide with the concentration of 50%;
the weight portions are as follows: the modified component B comprises the following components: 60-80 parts of modified silicone oil, 5-10 parts of plasticizer, 2-4 parts of catalyst and 1-2 parts of auxiliary agent.
The concrete preparation method of the chemical grouting material comprises the following steps:
step one: sequentially adding 30-40 parts of furfural and 20-25 parts of acetone into mixing equipment, heating by a heating rod, then dropwise adding 50% sodium hydroxide alkali solution under mixing and stirring until the solution is boiling, and standing for 5min to generate an epoxy resin polymer;
wherein, the mixing and stirring temperature is controlled to be 20-30 ℃, and the mixing and stirring speed of the dropwise adding of the sodium hydroxide strong alkali solution is 800-1200 r/min;
step two: adding 60-80 parts of modified silicone oil into the epoxy resin polymer generated in the step one, adjusting the mixing and stirring speed to 1000-1500 r/min, adding a plasticizer, a catalyst and an auxiliary agent, and reacting for 3-5h at 150 ℃ to obtain the organic silicon modified furfural acetone epoxy grouting material, wherein the auxiliary agent comprises 0-1 part of a coupling agent and 0-1 part of a defoaming agent, the catalyst is an organic metal catalyst, and is preferably at least one of an organic zinc catalyst, an organic bismuth catalyst and an organic tin catalyst, and the plasticizer is at least one of chlorinated paraffin, dioctyl phthalate, dibutyl phthalate, diisononyl phthalate, a citrate plasticizer, a vegetable oil plasticizer, polyether polyol and polyester polyol.
The modified silicone oil is fluorocarbon-based modified silicone oil, the mass ratio of the fluorocarbon-based modified silicone oil to the epoxy resin is kept at 60:10, 70:10 and 80:10, then the modified epoxy resin is cured by diethylenetriamine, and the epoxy resin is subjected to injection molding after being kept for 25-30 days; the mechanical properties are tested, and the test results are as follows:
when the mass ratio of the fluorocarbon-based modified silicone oil to the epoxy resin is 60:10, the tensile strength is 28.31Mpa, the bonding strength is 4.26Mpa, and the tensile strength is 30.14;
when the mass ratio of the fluorocarbon-based modified silicone oil to the epoxy resin is 70:10, the tensile strength is 60.24Mpa, the bonding strength is 5.66Mpa, and the tensile strength is 49.14;
when the mass ratio of the fluorocarbon-based modified silicone oil to the epoxy resin is 80:10, the tensile strength is 69.37Mpa, the bonding strength is 6.2Mpa, and the tensile strength is 90.22.
What is not described in detail in this specification is prior art known to those skilled in the art. The specific embodiments described herein are offered by way of example only to illustrate the spirit of the invention. Those skilled in the art may make various modifications or additions to the described embodiments or substitutions thereof without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.
Claims (6)
1. A chemical grouting material for high-speed railway construction is characterized by comprising a foundation A component and a modified B component, wherein,
the weight portions are as follows: the basic A component comprises: 30-40 parts of furfural, 20-25 parts of acetone and 20-50 parts of sodium hydroxide with the concentration of 50%;
the weight portions are as follows: the modified component B comprises the following components: 60-80 parts of modified silicone oil, 5-10 parts of plasticizer, 2-4 parts of catalyst and 1-2 parts of auxiliary agent.
2. The chemical grouting material for high-speed railway construction according to claim 1, wherein the modified silicone oil is polyether-based modified silicone oil, phosphate-based modified silicone oil, epoxy-based modified silicone oil, fluorocarbon-based modified silicone oil.
3. The chemical grouting material for high-speed railway construction according to claim 1, wherein the plasticizer is at least one of chlorinated paraffin, dioctyl phthalate, dibutyl phthalate, diisononyl phthalate, citrate plasticizer, vegetable oil plasticizer, polyether polyol and polyester polyol.
4. The chemical grouting material for high-speed railway construction according to claim 1, wherein the auxiliary agent comprises 0-1 part of coupling agent and 0-1 part of defoaming agent, and the catalyst is an organometallic catalyst, and preferably at least one of an organozinc catalyst, an organobismuth catalyst and an organotin catalyst.
5. The preparation method of the chemical grouting material for high-speed railway construction is characterized by comprising the following steps of:
step one: sequentially adding 30-40 parts of furfural and 20-25 parts of acetone into mixing equipment, heating by a heating rod, then dropwise adding 50% sodium hydroxide alkali solution under mixing and stirring until the solution is boiling, and standing for 5min to generate an epoxy resin polymer;
step two: adding 60-80 components of modified silicone oil into the epoxy resin polymer generated in the step one, adjusting the mixing and stirring speed to 1000-1500 rpm, adding a plasticizer, a catalyst and an auxiliary agent, and reacting for 3-5h at 150 ℃.
6. The method for preparing a chemical grouting material for high-speed railway construction according to claim 1, wherein in the first step, the mixing and stirring temperature is 20-30 ℃, and the mixing and stirring speed of the dropwise adding of the sodium hydroxide strong alkali solution is 800-1200 rpm.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202211672054.3A CN116004018A (en) | 2022-12-26 | 2022-12-26 | Chemical grouting material for high-speed railway construction and method thereof |
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| CN202211672054.3A CN116004018A (en) | 2022-12-26 | 2022-12-26 | Chemical grouting material for high-speed railway construction and method thereof |
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| CN116004018A true CN116004018A (en) | 2023-04-25 |
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| CN202211672054.3A Pending CN116004018A (en) | 2022-12-26 | 2022-12-26 | Chemical grouting material for high-speed railway construction and method thereof |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1318589A (en) * | 2001-05-28 | 2001-10-24 | 中国科学院广州化学研究所 | Modified furfural-acetone epoxy as reinforcing, concreting and grouting material and its preparation |
| CN104610700A (en) * | 2014-12-31 | 2015-05-13 | 江苏苏博特新材料股份有限公司 | Fluorine-contained organic silicone polymer-modified furfural-acetone epoxy grouting material and preparation method thereof |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1318589A (en) * | 2001-05-28 | 2001-10-24 | 中国科学院广州化学研究所 | Modified furfural-acetone epoxy as reinforcing, concreting and grouting material and its preparation |
| CN104610700A (en) * | 2014-12-31 | 2015-05-13 | 江苏苏博特新材料股份有限公司 | Fluorine-contained organic silicone polymer-modified furfural-acetone epoxy grouting material and preparation method thereof |
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