CN111592282A - Epoxy resin concrete for grouting bridge expansion joints and road and bridge joints - Google Patents
Epoxy resin concrete for grouting bridge expansion joints and road and bridge joints Download PDFInfo
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- CN111592282A CN111592282A CN201910838886.XA CN201910838886A CN111592282A CN 111592282 A CN111592282 A CN 111592282A CN 201910838886 A CN201910838886 A CN 201910838886A CN 111592282 A CN111592282 A CN 111592282A
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- 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
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
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- 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
- C04B2111/70—Grouts, e.g. injection mixtures for cables for prestressed concrete
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- 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
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/50—Mortars, concrete or artificial stone characterised by specific physical values for the mechanical strength
Abstract
The invention provides epoxy resin concrete for grouting bridge expansion joints and road and bridge joints, which comprises the following raw materials in parts by weight: 70-80 parts of bisphenol A epoxy resin E5170-80 parts, 5-10 parts of epoxy active toughening agent D-4115-10 parts, 5-10 parts of glycidyl ether, 0.1-0.3 part of defoaming agent, 0.1-0.3 part of flatting agent, 0.1-0.3 part of coupling agent, 20-30 parts of Mannich amine, 50-60 parts of modified aromatic amine, 40-50 parts of polyamide, 10-20 parts of 425# cement, 10-20 parts of 10-20 mesh quartz sand, 40-50 parts of 8-10 mesh quartz sand, 30-40 parts of 5-8 mesh quartz sand, 10-20 parts of polyarylether nitrile, 5-10 parts of sorbitol ester, 5-10 parts of polyoxyethylene sorbitol ester and 5-10 parts of 10-20 mesh glass bead powder. The epoxy resin concrete has the advantages of epoxy resin modification, curing agent modification, no addition of any volatile solvent, low requirement on moisture content of aggregate, simple operation in the construction process, no need of heating, no toxicity, no odor, low requirement on quality of constructors, low requirement on construction environment temperature, simple operation and performance far superior to that of the existing epoxy resin concrete prepared on site.
Description
Technical Field
The invention relates to the technical field of concrete, in particular to epoxy resin concrete for grouting bridge expansion joints and road and bridge joints.
Background
Along with bridge construction, mass construction of highways and highways in China, grouting connection construction of key parts such as bridge expansion joints and road and bridge joints is more and more important. Concrete is a general term for engineering composite materials in which aggregates are integrally cemented by a cementing material, and is a building material widely used in civil engineering.
The epoxy resin concrete commonly used in China at present is prepared from epoxy resin E44 (a main adhesive agent), ethylenediamine (a curing agent), acetone (a diluent agent), dibutyl ester (a toughening agent) and sandstone materials, and raw materials of all components are prepared and used on a construction site. The consistency and the setting time of the epoxy resin concrete are not well mastered, and the addition amount needs to be determined by repeated tests, so that the difficulty and the progress of construction are greatly increased. The method has the disadvantages and risks of high requirements on construction environment temperature, complex construction method, high requirements on quality of constructors, great environmental pollution and difficulty in ensuring the quality of the resin concrete after grouting forming. The reason for this is as follows:
1. the epoxy resin E44 (main agent of the adhesive) is high-viscosity epoxy resin, is close to semi-solid at the temperature of below 15 ℃, can be used only by heating to lower viscosity by using open fire or electric heating, and increases the danger coefficient and the energy consumption caused by the open fire and the electric heating. In field construction, the problem of electric power is difficult to solve, and environmental energy and the like are wasted due to the use of a generator.
2. Ethylenediamine is colorless or yellowish oily or water-like liquid, and has odor similar to ammonia. Is strongly basic, is highly corrosive and volatile and is flammable. Constructors must carry out construction with gas masks, the burden and the labor intensity of the constructors are greatly increased, and risks are greatly increased when dangerous goods are transported in the transportation process and stored on construction sites.
3. Acetone, also known as dimethyl ketone, is the simplest saturated ketone. Acetone is a colorless transparent liquid with a special pungent odor. Is easily soluble in water and organic solvent such as methanol, ethanol, diethyl ether, chloroform, pyridine, etc. Is flammable, volatile and dangerous.
4. Dibutyl ester is an inactive toughening agent, does not react with epoxy resin, only exists in gaps of a three-dimensional cross-linked structure of a cured epoxy resin to provide toughness, gradually precipitates after a long time to cause surface oil painting, and simultaneously loses the toughening effect, so that the strength of resin concrete is reduced, and the toughness is reduced.
5. Sand and stone materials. Generally, 1) cement: 425# ordinary portland cement is adopted, and slag cement is strictly forbidden. 2) Coarse and fine aggregates: in order to reduce gaps of epoxy resin concrete and improve compactness of a batch, 5-20 mm graded broken stones (the broken stones need to be cleaned and dried for use) are selected as the broken stones, clean medium sand (the mud content of the sand needs to be controlled below 2%, and the sand can be screened for use if necessary) needs to be selected as the sand, and medium sand stones all need to be dried and prepared and are difficult to guarantee in a field environment, so that cost is increased and quality of construction products is unqualified.
The epoxy resin concrete obtained by the formula has high operation difficulty, volatile toxic volatile substances and environmental pollution and high labor intensity of workers in the construction process, and the volatile toxic gases of the epoxy resin concrete after being heated have serious threat to the health of the workers and the construction quality is difficult to ensure.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides the epoxy resin concrete for grouting at the bridge expansion joints and road and bridge joints, the epoxy resin and the curing agent are modified, any volatile solvent is not added, the requirement on the moisture content of the sandstone materials is reduced, the operation is simple and easy in the construction process, heating is not required, no toxicity or odor is caused, the requirement on the quality of constructors is low, the requirement on the construction environment temperature is low, and the defects of the epoxy resin concrete provided in the prior art are effectively overcome.
In order to achieve the purpose, the invention is realized by the following technical scheme:
the epoxy resin concrete for grouting bridge expansion joints and road and bridge joints comprises the following raw materials in parts by weight: 70-80 parts of bisphenol A epoxy resin E5170-80 parts, 5-10 parts of epoxy active toughening agent D-4115-10 parts, 5-10 parts of glycidyl ether, 0.1-0.3 part of defoaming agent, 0.1-0.3 part of flatting agent, 0.1-0.3 part of coupling agent, 20-30 parts of Mannich amine, 50-60 parts of modified aromatic amine, 40-50 parts of polyamide, 10-20 parts of 425# cement, 10-20 parts of 10-20 mesh quartz sand, 40-50 parts of 8-10 mesh quartz sand, 30-40 parts of 5-8 mesh quartz sand, 10-20 parts of polyarylether nitrile, 5-10 parts of sorbitol ester, 5-10 parts of polyoxyethylene sorbitol ester and 5-10 parts of 10-20 mesh glass bead powder.
Preferably, the epoxy resin concrete comprises the following raw materials in parts by weight: 75-80 parts of bisphenol A epoxy resin E5175, 7-10 parts of epoxy active toughening agent D-4117, 7-10 parts of glycidyl ether, 0.1-0.2 part of defoaming agent, 0.1-0.2 part of flatting agent, 0.1-0.2 part of coupling agent, 25-30 parts of Mannich amine, 55-60 parts of modified aromatic amine, 45-50 parts of polyamide, 15-20 parts of 425# cement, 15-20 parts of 10-20 mesh quartz sand, 45-50 parts of 8-10 mesh quartz sand, 35-40 parts of 5-8 mesh quartz sand, 15-20 parts of polyarylether nitrile, 7-10 parts of sorbitol ester, 7-10 parts of polyoxyethylene sorbitol ester and 7-10 parts of 10-20 mesh glass bead powder.
The preparation method of the epoxy resin concrete comprises the following steps:
(1) weighing the raw materials of the component A in parts by weight: bisphenol A epoxy resin E5170-80 parts, epoxy active toughening agent D-4115-10 parts, glycidyl ether 5-10 parts, defoaming agent 0.1-0.3 part, leveling agent 0.1-0.3 part and coupling agent 0.1-0.3 part, and bisphenol A epoxy resin E51, epoxy active toughening agent D-411, glycidyl ether, defoaming agent, leveling agent and coupling agent are sequentially added into a high-speed dispersion machine for dispersion to obtain mixed liquid A1;
(2) weighing the raw materials of the component B in parts by weight: 20-30 parts of Mannich amine, 50-60 parts of modified aromatic amine and 40-50 parts of polyamide, and sequentially adding the Mannich amine, the modified aromatic amine and the polyamide into a high-speed dispersion machine for dispersion to obtain a mixed solution B1 after uniform dispersion;
(3) weighing the raw materials of the component C in parts by weight: 10-20 parts of 425# cement, 10-20 parts of 10-20 mesh quartz sand, 40-50 parts of 8-10 mesh quartz sand and 30-40 parts of 5-8 mesh quartz sand, and the raw materials of the component C are put into a mixer to be stirred, and a mixture C1 is obtained after uniform stirring;
(4) weighing the raw materials of the component D in parts by weight: 10-20 parts of poly (arylene ether nitrile), 5-10 parts of sorbitol ester, 5-10 parts of polyoxyethylene sorbitol ester and 5-10 parts of 10-20-mesh glass bead powder, and adding the component D raw material into a high-speed grinding disperser, grinding and stirring for 1-2h to obtain a mixture D1;
(5) adding the mixed solution A1, the mixed solution B1, the mixed solution C1 and the mixed solution D1 into a container together, then placing the container in a magnetic field with the magnetic field intensity of 1500-3000 gauss, firstly stirring at a low speed of 200-1600 r/min for a certain time, and then stirring at a high speed of 1500-1600r/min for a certain time to obtain the magnetic-based material.
Preferably, the coupling agent in the step (1) is a silane coupling agent kh 550.
Preferably, the grinding and stirring speed of the high-speed grinding disperser in the step (4) is 1000-.
Preferably, in the step (5), the low-speed stirring time is 1-2h, and the high-speed stirring time is 20-30 min.
The invention has the beneficial effects that:
(1) the epoxy resin concrete curing agent is modified by the epoxy resin curing agent, any volatile solvent is not added, the requirement on the moisture content of the aggregate is low, the operation is simple and easy in the construction process, the heating is not needed, the curing agent is nontoxic and odorless, the requirement on the quality of constructors is low, the requirement on the construction environment temperature is low, the operation is simple and easy, and the performance of the epoxy resin concrete curing agent is far superior to that of the epoxy resin concrete prepared on the spot and is universal at present.
(2) The epoxy resin concrete obtained by the scheme greatly saves construction time, improves construction efficiency, and can keep performance unchanged for a long time. The product replaces grouting materials filled in gaps between a bridge body and a rubber telescopic body in the past, and well solves the problems of expansion joint concrete cracking and 'head jumping' of vehicles passing through road and bridge joints and bridge expansion joints. The product replaces the commonly used epoxy resin concrete prepared on site, thereby improving the construction efficiency and the engineering quality.
(3) The epoxy resin concrete prepared by the scheme reduces the pollution to the construction environment, reduces the storage and transportation risk of materials, reduces the labor intensity of constructors, reduces the professional requirements on the constructors, simplifies the construction ingredients, reduces the material preparation on the construction site, shortens the material mixing time, and improves the construction efficiency and the engineering quality.
(4) The scheme reduces the requirement on the moisture content of the C component and the sand and stone material, reduces the requirement on the construction environment temperature, and can prepare the C component by a worker, thereby reducing the construction cost.
(5) Sorbitol ester and polyoxyethylene sorbitol ester are used as mixed emulsifiers, the interaction between the derivative of the polyoxyethylene sorbitol ester and the water phase is strong, and the lipophilic group of the polyoxyethylene sorbitol ester extends to the water phase more than that of non-ethoxylated sorbitol ester, so that after the sorbitol ester, the polyoxyethylene sorbitol ester and the polyarylether nitrile are mixed, a high-viscosity interface film is formed; the glass bead powder is doped in the concrete raw material for preparing concrete, so that stress concentration can be eliminated, fatigue strength is increased, and friction and abrasion are reduced; the poly (arylene ether nitrile) can be crosslinked with the poly (arylene ether nitrile) per se, the poly (arylene ether nitrile) can also be crosslinked and polymerized with bisphenol A epoxy resin, the crosslinked polymer structures of the poly (arylene ether nitrile) and the bisphenol A epoxy resin are compact, and the obtained epoxy resin has good toughness, high compressive strength, good creep resistance, strong adhesive force and excellent rolling impact resistance.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are some embodiments of the present invention, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1:
the epoxy resin concrete for grouting bridge expansion joints and road and bridge joints comprises the following raw materials in parts by weight: the adhesive comprises, by weight, 70 parts of bisphenol A epoxy resin E5170 parts, D-41110 parts of an epoxy active toughening agent, 5 parts of glycidyl ether, 0.3 part of a defoaming agent, 0.1 part of a leveling agent, 5500.3 parts of a silane coupling agent kh, 20 parts of Mannich amine, 60 parts of modified aromatic amine, 40 parts of polyamide, 20 parts of 425# cement, 20 parts of 10-20-mesh quartz sand, 40 parts of 8-10-mesh quartz sand, 40 parts of 5-8-mesh quartz sand, 20 parts of polyaryl ether nitrile, 5 parts of sorbitol ester, 10 parts of polyoxyethylene sorbitol ester and 5 parts of 10-20-mesh glass bead powder.
The preparation method of the epoxy resin concrete comprises the following steps:
(1) weighing the raw materials of the component A in parts by weight: bisphenol A type epoxy resin E51, epoxy active toughening agent D-411, glycidyl ether, defoaming agent, flatting agent and silane coupling agent kh550, and the raw materials of the component A are sequentially added into a high-speed dispersion machine for dispersion, and mixed liquid A1 is obtained after uniform dispersion;
(2) weighing the raw materials of the component B in parts by weight: the component B raw materials are sequentially added into a high-speed dispersion machine for dispersion, and a mixed solution B1 is obtained after uniform dispersion;
(3) weighing the raw materials of the component C in parts by weight: 425# cement, 10-20 meshes of quartz sand, 8-10 meshes of quartz sand and 5-8 meshes of quartz sand, and the raw materials of the component C are put into a mixer to be stirred, and a mixture C1 is obtained after the raw materials are uniformly stirred;
(4) weighing the raw materials of the component D in parts by weight: adding the raw materials of the component D into a high-speed grinding disperser, grinding and stirring at the speed of 1200r/min for 1h to obtain a mixture D1;
(5) adding the mixed solution A1, the mixed solution B1, the mixed solution C1 and the mixed solution D1 into a container together, then placing the container in a magnetic field with the magnetic field intensity of 3000 gauss, firstly stirring at a low speed of 200r/min for 2 hours, and then stirring at a high speed of 1500r/min for 30 minutes to obtain the composite material.
Example 2:
the epoxy resin concrete for grouting bridge expansion joints and road and bridge joints comprises the following raw materials in parts by weight: the adhesive comprises, by weight, 5180 parts of bisphenol A epoxy resin, D-4115 parts of an epoxy active toughening agent, 10 parts of glycidyl ether, 0.1 part of a defoaming agent, 0.3 part of a leveling agent, 5500.1 parts of a silane coupling agent kh, 30 parts of Mannich amine, 50 parts of modified aromatic amine, 50 parts of polyamide, 10 parts of 425# cement, 20 parts of 10-20-mesh quartz sand, 40 parts of 8-10-mesh quartz sand, 40 parts of 5-8-mesh quartz sand, 10 parts of polyaryl ether nitrile, 10 parts of sorbitol ester, 5 parts of polyoxyethylene sorbitol ester and 10 parts of 10-20-mesh glass bead powder.
The preparation method of the epoxy resin concrete comprises the following steps:
(1) weighing the raw materials of the component A in parts by weight: bisphenol A type epoxy resin E51, epoxy active toughening agent D-411, glycidyl ether, defoaming agent, flatting agent and silane coupling agent kh550, and the raw materials of the component A are sequentially added into a high-speed dispersion machine for dispersion, and mixed liquid A1 is obtained after uniform dispersion;
(2) weighing the raw materials of the component B in parts by weight: the component B raw materials are sequentially added into a high-speed dispersion machine for dispersion, and a mixed solution B1 is obtained after uniform dispersion;
(3) weighing the raw materials of the component C in parts by weight: 425# cement, 10-20 meshes of quartz sand, 8-10 meshes of quartz sand and 5-8 meshes of quartz sand, and the raw materials of the component C are put into a mixer to be stirred, and a mixture C1 is obtained after the raw materials are uniformly stirred;
(4) weighing the raw materials of the component D in parts by weight: adding the raw materials of the component D into a high-speed grinding disperser, grinding and stirring at the speed of 1000r/min for 2 hours to obtain a mixture D1;
(5) adding the mixed solution A1, the mixed solution B1, the mixed solution C1 and the mixed solution D1 into a container together, then placing the container in a magnetic field with the magnetic field intensity of 1500 gauss, firstly stirring at a low speed of 300r/min for 1h, and then stirring at a high speed of 1600r/min for 20min to obtain the composite material.
Example 3:
the epoxy resin concrete for grouting bridge expansion joints and road and bridge joints comprises the following raw materials in parts by weight: the adhesive comprises, by weight, 75 parts of bisphenol A epoxy resin E, 7 parts of epoxy active toughening agent D-41110 parts of glycidyl ether, 0.2 part of defoaming agent, 0.1 part of leveling agent, 0.2 part of coupling agent, 25 parts of Mannich amine, 60 parts of modified aromatic amine, 50 parts of polyamide, 15 parts of 425# cement, 15 parts of 10-20-mesh quartz sand, 50 parts of 8-10-mesh quartz sand, 35 parts of 5-8-mesh quartz sand, 20 parts of polyaryl ether nitrile, 7 parts of sorbitol ester, 10 parts of polyoxyethylene sorbitol ester and 7 parts of 10-20-mesh glass bead powder.
The preparation method of the epoxy resin concrete comprises the following steps:
(1) weighing the raw materials of the component A in parts by weight: bisphenol A type epoxy resin E51, epoxy active toughening agent D-411, glycidyl ether, defoaming agent, flatting agent and silane coupling agent kh550, and the raw materials of the component A are sequentially added into a high-speed dispersion machine for dispersion, and mixed liquid A1 is obtained after uniform dispersion;
(2) weighing the raw materials of the component B in parts by weight: the component B raw materials are sequentially added into a high-speed dispersion machine for dispersion, and a mixed solution B1 is obtained after uniform dispersion;
(3) weighing the raw materials of the component C in parts by weight: 425# cement, 10-20 meshes of quartz sand, 8-10 meshes of quartz sand and 5-8 meshes of quartz sand, and the raw materials of the component C are put into a mixer to be stirred, and a mixture C1 is obtained after the raw materials are uniformly stirred;
(4) weighing the raw materials of the component D in parts by weight: adding the raw materials of the component D into a high-speed grinding disperser, grinding and stirring at the speed of 1200r/min for 1h to obtain a mixture D1;
(5) adding the mixed solution A1, the mixed solution B1, the mixed solution C1 and the mixed solution D1 into a container together, then placing the container in a magnetic field with the magnetic field intensity of 3000 gauss, firstly stirring at a low speed of 200r/min for 2 hours, and then stirring at a high speed of 1500r/min for 30 minutes to obtain the composite material.
Example 4:
the epoxy resin concrete for grouting bridge expansion joints and road and bridge joints comprises the following raw materials in parts by weight: the adhesive comprises, by weight, 5180 parts of bisphenol A epoxy resin, D-4117 parts of epoxy active toughening agent, 10 parts of glycidyl ether, 0.1 part of defoaming agent, 0.2 part of flatting agent, 0.1 part of coupling agent, 30 parts of Mannich amine, 55 parts of modified aromatic amine, 50 parts of polyamide, 15 parts of 425# cement, 20 parts of 10-20-mesh quartz sand, 45 parts of 8-10-mesh quartz sand, 40 parts of 5-8-mesh quartz sand, 15 parts of polyaryl ether nitrile, 10 parts of sorbitol ester, 7 parts of polyoxyethylene sorbitol ester and 10 parts of 10-20-mesh glass bead powder.
The preparation method of the epoxy resin concrete comprises the following steps:
(1) weighing the raw materials of the component A in parts by weight: bisphenol A type epoxy resin E51, epoxy active toughening agent D-411, glycidyl ether, defoaming agent, flatting agent and silane coupling agent kh550, and the raw materials of the component A are sequentially added into a high-speed dispersion machine for dispersion, and mixed liquid A1 is obtained after uniform dispersion;
(2) weighing the raw materials of the component B in parts by weight: the component B raw materials are sequentially added into a high-speed dispersion machine for dispersion, and a mixed solution B1 is obtained after uniform dispersion;
(3) weighing the raw materials of the component C in parts by weight: 425# cement, 10-20 meshes of quartz sand, 8-10 meshes of quartz sand and 5-8 meshes of quartz sand, and the raw materials of the component C are put into a mixer to be stirred, and a mixture C1 is obtained after the raw materials are uniformly stirred;
(4) weighing the raw materials of the component D in parts by weight: adding the raw materials of the component D into a high-speed grinding disperser, grinding and stirring at the speed of 1000r/min for 2 hours to obtain a mixture D1;
(5) adding the mixed solution A1, the mixed solution B1, the mixed solution C1 and the mixed solution D1 into a container together, then placing the container in a magnetic field with the magnetic field intensity of 1500 gauss, firstly stirring at a low speed of 300r/min for 1h, and then stirring at a high speed of 1600r/min for 20min to obtain the composite material.
Comparative example 1:
other components, reaction conditions and component contents are the same as those of the example 1, and the technical difference from the example 1 is that the epoxy active toughening agent D-411 is not added.
Comparative example 2:
the other components, reaction conditions and component contents were the same as in example 1, and the technical feature was different from example 1 in that no glycidyl ether was added.
Comparative example 3:
other components, reaction conditions and component contents are the same as those of example 2, and it is technically characterized from example 1 in that no polyarylene ether nitrile is added.
Comparative example 4:
other components, reaction conditions and component contents are the same as those of example 2, and the technical feature is that glass bead powder is not added, which is different from example 1.
Comparative example 5:
the other components, reaction conditions and contents of the components were the same as those of example 2, and it is technically different from example 1 in that sorbitol ester and polyoxyethylene sorbitol ester were not added.
The comparative performance tests of the epoxy resin concrete obtained in examples 1 to 4 of the present invention and comparative examples 1 to 5 and the epoxy resin concrete in the prior art show that the results are shown in the following table:
the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (6)
1. The epoxy resin concrete for grouting the bridge expansion joints and the road and bridge joints is characterized by comprising the following raw materials in parts by weight: 70-80 parts of bisphenol A epoxy resin E5170-80 parts, 5-10 parts of epoxy active toughening agent D-4115-10 parts, 5-10 parts of glycidyl ether, 0.1-0.3 part of defoaming agent, 0.1-0.3 part of flatting agent, 0.1-0.3 part of coupling agent, 20-30 parts of Mannich amine, 50-60 parts of modified aromatic amine, 40-50 parts of polyamide, 10-20 parts of 425# cement, 10-20 parts of 10-20 mesh quartz sand, 40-50 parts of 8-10 mesh quartz sand, 30-40 parts of 5-8 mesh quartz sand, 10-20 parts of polyarylether nitrile, 5-10 parts of sorbitol ester, 5-10 parts of polyoxyethylene sorbitol ester and 5-10 parts of 10-20 mesh glass bead powder.
2. The epoxy resin concrete for grouting at the bridge expansion joint and the road-bridge joint as claimed in claim 1, wherein the epoxy resin concrete comprises the following raw materials in parts by weight: 75-80 parts of bisphenol A epoxy resin E5175, 7-10 parts of epoxy active toughening agent D-4117, 7-10 parts of glycidyl ether, 0.1-0.2 part of defoaming agent, 0.1-0.2 part of flatting agent, 0.1-0.2 part of coupling agent, 25-30 parts of Mannich amine, 55-60 parts of modified aromatic amine, 45-50 parts of polyamide, 15-20 parts of 425# cement, 15-20 parts of 10-20 mesh quartz sand, 45-50 parts of 8-10 mesh quartz sand, 35-40 parts of 5-8 mesh quartz sand, 15-20 parts of polyarylether nitrile, 7-10 parts of sorbitol ester, 7-10 parts of polyoxyethylene sorbitol ester and 7-10 parts of 10-20 mesh glass bead powder.
3. The epoxy resin concrete for grouting at the joint of a bridge expansion joint and a road bridge according to claim 1, wherein the preparation method of the epoxy resin concrete comprises the following steps:
(1) weighing the raw materials of the component A in parts by weight: bisphenol A epoxy resin E5170-80 parts, epoxy active toughening agent D-4115-10 parts, glycidyl ether 5-10 parts, defoaming agent 0.1-0.3 part, leveling agent 0.1-0.3 part and coupling agent 0.1-0.3 part, and bisphenol A epoxy resin E51, epoxy active toughening agent D-411, glycidyl ether, defoaming agent, leveling agent and coupling agent are sequentially added into a high-speed dispersion machine for dispersion to obtain mixed liquid A1;
(2) weighing the raw materials of the component B in parts by weight: 20-30 parts of Mannich amine, 50-60 parts of modified aromatic amine and 40-50 parts of polyamide, and sequentially adding the Mannich amine, the modified aromatic amine and the polyamide into a high-speed dispersion machine for dispersion to obtain a mixed solution B1 after uniform dispersion;
(3) weighing the raw materials of the component C in parts by weight: 10-20 parts of 425# cement, 10-20 parts of 10-20 mesh quartz sand, 40-50 parts of 8-10 mesh quartz sand and 30-40 parts of 5-8 mesh quartz sand, and the raw materials of the component C are put into a mixer to be stirred, and a mixture C1 is obtained after uniform stirring;
(4) weighing the raw materials of the component D in parts by weight: 10-20 parts of poly (arylene ether nitrile), 5-10 parts of sorbitol ester, 5-10 parts of polyoxyethylene sorbitol ester and 5-10 parts of 10-20-mesh glass bead powder, and adding the component D raw material into a high-speed grinding disperser, grinding and stirring for 1-2h to obtain a mixture D1;
(5) adding the mixed solution A1, the mixed solution B1, the mixed solution C1 and the mixed solution D1 into a container together, then placing the container in a magnetic field with the magnetic field intensity of 1500-3000 gauss, firstly stirring at a low speed of 200-1600 r/min for a certain time, and then stirring at a high speed of 1500-1600r/min for a certain time to obtain the magnetic-based material.
4. The epoxy resin concrete for grouting at a bridge expansion joint and a road-bridge joint according to claim 3, wherein the coupling agent in the step (1) is a silane coupling agent kh 550.
5. The epoxy resin concrete for grouting at the bridge expansion joint and road-bridge joint as claimed in claim 3, wherein the grinding and stirring speed of the high-speed grinding dispersion machine in the step (4) is 1000-1200 r/min.
6. The epoxy resin concrete for grouting at a bridge expansion joint and a road-bridge joint according to claim 3, wherein in the step (5), the low-speed stirring time is 1-2h, and the high-speed stirring time is 20-30 min.
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| CN201910838886.XA CN111592282B (en) | 2019-09-05 | 2019-09-05 | Epoxy resin concrete for grouting bridge expansion joints and road and bridge joints |
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| CN201910838886.XA CN111592282B (en) | 2019-09-05 | 2019-09-05 | Epoxy resin concrete for grouting bridge expansion joints and road and bridge joints |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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