1189 results about "Repair material" patented technology

The invention discloses crack-chloride ion double-triggered subsea tunnel corrosion-resistant concrete and a preparation method thereof, and relates to the field of subsea tunnel engineering materials. The concrete is prepared from the following components in parts by weight: 400 to 500 parts of Portland cement, 50 to 80 parts of fly ash, 60 to 100 parts of superfine mineral powder, 1000 to 1100 parts of coarse aggregate, 700 to 800 parts of fine aggregate, 140 to 160 parts of water, 10 to 20 parts of self-repairing microcapsules and 1 to 5 parts of a water reducing agent, the self-repairing microcapsule comprises a capsule wall material, a self-repairing material and a layered dihydroxyl composite metal oxide. A crack-chloride ion double-response system is constructed, and the limitation of traditional single trigger repair is broken through. When a crack with a certain width appears in the concrete, the capsule wall of the self-repairing microcapsule is broken to release the repairing component, so that effective filling of the crack is realized; and meanwhile, the layered double-metal hydroxide can directionally adsorb chloride ions to form a stable compound, so that the migration rate of the chloride ions is remarkably reduced.

The invention discloses a high-toughness impervious polymer modified cement-based grouting material and a preparation method thereof, and belongs to the technical field of building repair materials. The component A is prepared from a cementing material, an admixture, a fine aggregate, a composite expanding agent, a polymer for concrete modification, fibers, an early strength agent, a water reducing agent, a composite retarder, a defoaming agent, an air entraining agent, a nano material and a functional component. The system solves the technical contradiction of toughness-strength-impermeability in the polymer modified cement-based material, and the material has excellent comprehensive performance: the initial fluidity is greater than or equal to 330 mm, the 28d compressive strength is greater than or equal to 82 MPa, the breaking strength is greater than or equal to 16.8 MPa, the bending-compression ratio is greater than or equal to 0.19, the impermeability pressure value is greater than or equal to 2.6 MPa, and the material is suitable for the fields of prefabricated buildings, tunnel engineering and the like.

The invention provides an injectable short-fiber-based hydrogel tissue repair material with an electric response characteristic as well as a preparation method and application thereof, and the injectable short-fiber-based hydrogel tissue repair material with the electric response characteristic is prepared by taking a natural polymer material loaded with bioactive factors as a core layer material and a biodegradable material as a shell layer material through a coaxial electrostatic spinning technology. The method comprises the following steps: preparing short fibers with a core-shell structure, uniformly mixing the short fibers with a hydrogel matrix, injecting and filling a tissue defect part, and carrying out ultraviolet curing to form the tissue repair material. The injectable short-fiber-based hydrogel tissue repair material with the electrical response characteristic provided by the invention has piezoelectric characteristic and injectable characteristic, can generate electrical response through mechanical stimulation so as to promote cell proliferation and tissue repair, and also has controllable drug release capacity and good mechanical adaptability; the method is suitable for application scenes of complex tissue damage repair such as diabetes infected wound repair, articular cartilage repair, oral barrier membrane repair, abdominal wall defect repair and the like.

The invention belongs to the technical field of asphalt pavement repairing, and particularly relates to a local repairing technology of an asphalt pavement, which comprises the following specific contents: detecting a disease range by adopting ground three-dimensional laser scanning or ground penetrating radar, determining a repairing boundary, sampling and detecting the aging degree, the moisture content and the grading type of the asphalt of the original pavement, and determining the repairing quality of the asphalt pavement. According to the method, the bonding strength of the repairing material and the asphalt layer of the original pavement is enhanced by heating and activating the interface of the original pavement and emulsifying the asphalt bonding layer, and matching the repairing material with the shrinkage coefficient of the original pavement and reinforcing and compacting the edge, so that the condition that the repaired position is cracked, loosened and damaged in a short time is avoided; warm-mixed asphalt is adopted, the heating temperature is reduced by 40-60 DEG C, cold-mixed emulsified asphalt is popularized, and the asphalt does not need to be heated, so that release of a large amount of volatile organic compounds (VOCs), polycyclic aromatic hydrocarbons (PAHs) and dust is effectively avoided, and air pollution is avoided.

The invention discloses a preparation method of modified self-extinguishing insulating oil with flame-retardant and self-repairing functions. Wherein the insulating liquid is mixed oil of mineral oil and palm oil-based modified natural ester, and the inherent high flash point characteristic of the natural ester improves the fireproof safety of the insulating oil. The modified hexagonal boron nitride (h-BN), the magnesium hydroxide nano material and the microcapsule repairing agent are added into the insulating oil, and the h-BN can capture free electrons in the oil, so that the formation and expansion of electric arcs are inhibited, and the breakdown voltage is improved. Magnesium hydroxide is heated to decompose and absorb heat, the fault temperature is reduced, and therefore the arc self-extinguishing effect is achieved. Under the action of a high electric field and a high temperature, the capsule wall of the microcapsule repairing agent is broken, meanwhile, the repairing material is released, a chemical reaction is carried out, and the insulating property of the insulating oil is repaired. The modified insulating oil prepared by the invention has high insulating strength and high flame retardance, and also has a performance self-repairing function, so that the service life of the insulating oil is prolonged.

The invention relates to an intelligent permeation grouting process and device for concrete crack self-repairing. The intelligent permeation grouting process and device are suitable for crack detection and repairing of a newly-built concrete structure. The device comprises a blood vessel network embedded into concrete, a crack detection sensor, a control module, a pumping module and a self-repairing material storage module, and automatic detection and repairing of cracks are achieved. The technological process comprises crack detection, data analysis, grouting parameter determination, material injection and repair monitoring. Through the automation and intelligence technology, the repairing efficiency and precision are remarkably improved, and the device is suitable for large structures such as bridges and tunnels.

The invention discloses a composite insulating arm surface repairing material and a repairing method, and the repairing material comprises the following raw material components in parts by weight: 100 parts of matrix resin, 0.8-4 parts of a curing agent, 0.2-1.2 parts of an accelerant, 5-20 parts of color paste, 10-25 parts of inorganic particles, and 10-25 parts of inorganic fibers. The repairing material is simple in preparation method and convenient to use, according to the repairing method, the repairing material is used for replacing gel coat spraying repairing, the operation difficulty is low, the repairing duration is shortened, the repairing efficiency is improved, and all technical indexes of the repaired insulating arm component can meet the use requirements.

The invention relates to the technical field of concrete structure repair, and particularly discloses a high-freezing-resistance and high-permeability concrete crack repair material and a preparation process thereof. The repairing material comprises the following components in parts by weight: 10-50 parts of acrylic acid, 12-50 parts of methyl methacrylate, 0.2-3.0 parts of a cross-linking agent, 0.05-2 parts of an oxidizing agent, 0.01-1 part of a reducing agent and 2-10 parts of watermelon leaf powder-saturated lime water suspension. The repairing material disclosed by the invention not only has good permeability, can penetrate into microcracks, but also has good frost resistance, so that the repairing material can be well applied to repairing of weight cracks of a concrete structure in a low-temperature environment.

The invention belongs to the technical field of wall joint filling, and relates to a wall cracking joint filling agent and a wall joint filling process, the wall cracking joint filling agent comprises a cement-based cementing material, fine aggregate, modified toughening fiber, modified nano zinc oxide, a dispersing agent, a defoaming agent, a water-retaining agent and a mildew preventive; the modified toughened fiber is obtained by sequentially carrying out alkali etching, dopamine coating and intercalated kaolin loading on polyacrylonitrile fiber; the modified nano-zinc oxide is obtained by modifying nano-zinc oxide through a silane coupling agent and coating and modifying the nano-zinc oxide through chitosan. According to the wall crack repairing agent provided by the invention, the modified toughening fibers and the modified nano zinc oxide which are subjected to surface functionalization treatment are introduced, so that the crack resistance and toughness of a cement-based crack repairing material can be remarkably improved, the occurrence probability of secondary cracking after repairing can be remarkably reduced, meanwhile, lasting and effective mildew-proof and antibacterial capabilities can be provided, microbial erosion can be inhibited, and the service life of the wall crack repairing agent is prolonged. And good construction operability and basic mechanical properties of the material are maintained.

The invention discloses a concrete crack self-repairing material based on microorganism immobilization and a preparation method of the concrete crack self-repairing material, and belongs to the crossing field of microorganism materials and civil engineering. The material is prepared from peptone, sodium lactate, volcanic rock, bacillus pasteurii and other raw materials through the steps of culture medium preparation, carrier modification, microorganism immobilization, microcapsule and gel protection layer formation and the like, the prepared volcanic rock-chitosan carrier provides an inhabiting environment for microorganisms, and the survival rate of the microorganisms in a high-alkali environment is increased to 70%. When the concrete cracks and the alkaline environment triggers the protective layer to disintegrate, the bacillus pasteurii and the desulfurization vibrio are subjected to a reduction reaction with sulfate through urealysis, and calcium carbonate and calcium sulfide are generated to fill cracks. The 28-day repair rate of the material is larger than or equal to 99%, the maximum crack repair width reaches 1.2 mm, the compressive strength recovery rate is larger than or equal to 85%, excellent durability and environment friendliness are achieved, and the concrete crack repair problem is effectively solved.

The invention provides a cold-resistant and saline-alkali-resistant concrete micro-crack repairing material and a preparation method thereof, and belongs to the technical field of preparation of concrete repairing materials. The concrete micro-crack repairing material comprises a calcium source permeation component, an organosilicon waterproof material component, a complexing component and a reinforcing component, and the specific types of all the components are limited. The concrete micro-crack repairing material has cold resistance, has a certain degree of ion erosion resistance, and can reduce the influences of internal structure damage, durability degradation, steel bar corrosion and the like caused by a low-temperature saline-alkali environment on a concrete matrix; after the concrete micro-cracks are repaired, further expansion of the micro-cracks can be reduced, the mechanical property of a concrete structure in a low-temperature saline-alkali environment is improved, the service life of the concrete structure in the low-temperature saline-alkali environment is prolonged, the maintenance cost is reduced, and a reliable guarantee is provided for infrastructures such as bridges, roads and dams in cold saline-alkali areas.

The invention discloses a preparation method and application of a ceramic glaze layer protecting and repairing material, and belongs to the technical field of cultural relic protection. The preparation method comprises preparation of a core-shell self-repairing nanocapsule, and the preparation of the core-shell self-repairing nanocapsule comprises the following steps: reacting a calcium chloride solution with a sodium hydroxide solution, then adding sodium polyacrylate and nano ZnO, and carrying out dispersion, centrifugation, washing and other operations to prepare the nano Ca (OH) 2-ZnO composite material. The nano Ca (OH) 2-ZnO composite material of the core-shell self-repairing nanocapsule can be rapidly released through the 3.5 nm aperture of the mesoporous SiO2 shell, glaze layer cracks are physically filled and react with CO2 in air to generate CaCO3 crystals, crack plugging is achieved, meanwhile, dynamic disulfide bonds of a PU layer are broken and recombined under stress stimulation, a crack interface is repaired through chemical bonding, and the performance of the core-shell self-repairing nanocapsule is improved. The 24-hour crack repair rate is greater than or equal to 96%, and the limitation of'one-time repair 'of a traditional material is solved.

The invention provides an in-situ curing and repairing method for heavy metals in river sediment. The in-situ curing and repairing method comprises the following steps: S1, detecting the content and physicochemical properties of the heavy metals in the river sediment; s2, designing a repair material formula; s3, preparing and putting a repairing material; s4, mixing and stirring the bottom mud and the repairing material; s5, monitoring and evaluating the repairing effect; and S6, repairing effect feedback and adjustment. According to the method, multiple linear regression, curved surface fitting, self-organizing mapping and mixed density network algorithms are fused, the sediment heavy metal content and physicochemical property data are fully utilized, a repair material formula can be accurately designed, and compared with a traditional single algorithm or empirical formula design, the repair material proportion can better fit the actual pollution condition, and the repair efficiency is improved. The utilization rate of repair materials is improved.

The invention provides a superfine-diameter PCL / COL nanofiber membrane as well as a preparation method and application thereof, and relates to the technical field of skin wound repair materials. The PCL / COL nanofiber membrane material is prepared from PCL and I-type collagen as raw materials through electrostatic spinning and vacuum drying. According to the preparation method disclosed by the invention, an electrostatic spinning technology is combined with strict regulation and control on parameters, so that the stable and superfine 40-nanoscale PCL / COL nanofiber membrane material is prepared. The diameter of the superfine PCL / COL nanofiber membrane material reaches the bionic scale of the minimum natural collagen of an extracellular matrix, and meanwhile, the superfine PCL / COL nanofiber membrane material shows more excellent hydrophilicity and lower surface roughness, has good biological safety and mechanical stability, not only realizes high matching with a natural ECM hierarchical structure, but also has good application prospects. By enhancing the cell-material interface interaction, the adhesion, proliferation and migration capacities of fibroblasts are remarkably improved, the wound healing period can be effectively shortened, an excellent repair promoting effect is shown, and a solid foundation is laid for clinical transformation of materials.

The invention provides a slow-release corrosion-resistant microcapsule applied to reinforced concrete, the slow-release corrosion-resistant microcapsule comprises a capsule core and a capsule wall, and the capsule core comprises a composite corrosion inhibitor, self-repairing microspheres, nano hydrotalcite and an anti-freezing agent; the capsule wall comprises a three-layer structure including an inner layer film, a middle layer film and an outer layer film. The mass ratio of the capsule core to the capsule wall is 1: (0.3-0.5); and the thickness of the capsule wall is 10-17 microns. A pH triggering inner layer, a dynamic self-repairing middle layer and a hydrophobic protection outer layer are designed through three layers of intelligent response capsule walls, and on-demand release and long-term stability of a corrosion inhibitor are achieved; the crack repairing efficiency is remarkably improved through the synergistic effect of the chemical repairing material and the biological spores in the capsule core; the dynamic cross-linked network endows the capsule wall with self-healing ability, resists physical damage, improves the durability of the concrete, prolongs the service life of the concrete, also can enhance the wear resistance of the concrete, and reduces the wear in the use process.

The invention provides a hot-state repairing material and a preparation method thereof, and belongs to the technical field of refractory materials. The hot-state repairing material provided by the invention is prepared from the following raw materials in percentage by mass: 87 to 98 percent of waste bricks, 0.5 to 4.5 percent of magnesium mineral micro powder, 0.5 to 5.0 percent of slag powder, 0.5 to 2.0 percent of dispersing agent, 0.2 to 1.5 percent of organic fiber and 0.1 to 0.5 percent of binding agent. According to the invention, waste bricks are used as aggregates, contain tiny pores, provide channels for reaction gas for heating the hot-state repairing material, and can be rapidly sintered with a furnace lining; the slag powder can be matched with the binder to improve the thermal adhesion rate of the thermal repairing material; the magnesium mineral micro powder can improve the reaction activity, and the dispersing agent assists the combination effect of the slag powder, so that the repairing material can be sintered through rapid reaction, and the compression strength and the erosion resistance are improved; and the organic fibers can form good filling among particles and fine powder, so that the compression strength and the erosion resistance are improved.

The invention relates to the technical field of cement-based patching materials, in particular to a modified brucite fiber reinforced magnesium phosphate cement-based patching material and application thereof. The repairing material comprises the following components in parts by weight: 60-70 parts of magnesium oxide, 15-20 parts of phosphate, 5-9 parts of a retarder, 3-5 parts of modified brucite fibers and 10-15 parts of water. The modified brucite fiber is prepared by the following method: (1) soaking brucite fiber in a dihydric phosphate solution, separating out the brucite fiber after soaking, washing and drying to obtain pretreated fiber; and (2) placing the pretreated fiber in an absolute ethyl alcohol solution of methyltrimethoxysilane, then reacting under a heating condition, separating out the fiber after the reaction is completed, and drying to obtain the modified brucite fiber. The problem that the fluidity, the bonding strength and the fracture toughness of a magnesium phosphate cement-based thin layer repairing material doped with fibers cannot be considered at the same time is effectively solved.

The invention relates to a digital twinning fused material-equipment collaborative crack repair design method and equipment, and the method comprises the following steps: building an electromagnetic-thermal field coupling model, and obtaining pavement temperature field distribution, the electromagnetic-thermal field coupling model being a system combining microwave heating equipment, an asphalt pavement, a crack and a repair material; based on the mapping relation between the pavement temperature and the dynamic modulus, a pavement compaction model under the action of a road roller is established through finite element simulation; actual pavement parameters are obtained, a key parameter combination of a crack repairing material and microwave heating equipment is inversely optimized according to the pavement compaction model, and the key parameter combination comprises an electromagnetic loss parameter E, heating power W, heating width b and heating time t; and designing a crack repairing material and microwave heating equipment based on the final optimized key parameter combination. Compared with the prior art, the method has the advantages of accurate repair, convenient construction, high repair efficiency, small environmental disturbance and the like.

The invention relates to the technical field of soil improvement, in particular to a solid-waste-based porous material for repairing saline-alkali soil and a preparation method and application of the solid-waste-based porous material. The solid waste-based porous material is prepared from the following raw materials: 60 to 70 percent of coal gangue powder, 24.7 to 30 percent of phosphogypsum, 5 to 9.5 percent of functional filler and 0.3 to 0.5 percent of foaming agent, and the liquid-solid ratio is 0.6 to 0.7. According to the invention, the problems of insufficient gelation activity of high-silicon-aluminum coal gangue, excessive heavy metal Cd, contradiction between pores and strength of a traditional repair material and the like are effectively improved, multi-target coordination of solid waste recycling, heavy metal stabilization and saline-alkali soil repair is realized, and an industrial feasible path is provided for large-scale saline-alkali soil treatment.

The invention relates to the technical field of road crack repairing materials, in particular to a high-strength polyurethane-based road crack repairing material and a preparation method thereof. The composite material is prepared from the following components in parts by weight: 5 to 10 parts of 1, 4-butanediol, 3 to 8 parts of modified nano silicon dioxide, 10 to 20 parts of superfine calcium carbonate, 8 to 12 parts of chopped basalt fiber, 0.5 to 2 parts of 2-(2H-benzotriazole-2-yl)-4, 6-di-tert-pentylphenol, 0.3 to 1.5 parts of carbodiimide and 0.3 to 0.8 part of organic tin-amine composite catalyst. The mechanical strength and the temperature resistance of the material are remarkably improved through a rigid annular structure of dicyclohexylmethane diisocyanate, the material is endowed with elasticity and deformation resistance through a flexible chain segment of polyester polyol, and a repairing layer can bear load impact and can adapt to crack expansion deformation through the synergistic effect of dicyclohexylmethane diisocyanate and polyester polyol; the composite action of the fibers and the filler can disperse stress concentration, reduce the risk of secondary cracking caused by temperature shrinkage or load, and realize long-term stability of crack repair.

The invention relates to the field of furnace lining materials, in particular to a rapid repairing material for a tapping hole and a furnace lining of an intermediate frequency furnace. The rapid repairing material comprises the following components in parts by weight: 50-70 parts of tabular corundum, 10-20 parts of fused magnesite, 8-15 parts of alumina micro powder, 3-8 parts of nano zirconia, 5-12 parts of silicon carbide, 10-15 parts of silica sol and 2-5 parts of a reinforcing agent. Wherein the reinforcing agent is titanium calcium aluminate coated with chromium nickel boride. The tabular corundum is mainly used as an integral framework; the fused magnesite is matched with the alumina micro powder to form magnesium aluminate spinel with a high melting point; the nano zirconium oxide can fill pores and is excellent in toughness; the silicon carbide has the advantages of high hardness, high thermal conductivity and high melting point; the reinforcing agent is titanium calcium aluminate coated with chromium nickel boride, although the adding amount is small, the high-temperature strength, toughness and thermal shock resistance of the repairing material can be remarkably improved, and especially the long-term corrosion resistance can be remarkably improved.

The invention relates to the technical field of composite material repair, in particular to a short carbon fiber technology-based composite material rapid repair method, which comprises the following steps of short carbon fiber pretreatment; preparing a resin matrix; preparing spraying slurry; cleaning the damaged area by laser; scanning the unmanned aerial vehicle; layering and synchronous curing; evaluating the quality of the coating; a chopped fiber spraying technology is applied to the aspect of composite material damage repair, repair time is shortened, cost is reduced, interface bonding strength and fiber orientation are optimized, and the problem that the mechanical property recovery rate of the repaired material is low due to the fact that interlayer stripping or fiber orientation mismatching is prone to occurring in a repair area is solved. And the method can be used for rapidly detecting the thickness of the bubble defect, is suitable for efficient, accurate and light-weight repair of the damage of the CFRP, and is particularly suitable for on-site rapid maintenance scenes.

The invention discloses a super-early-strength shrinkage-free high-crack-resistance tunnel spraying repair material in the technical field of civil engineering materials, which comprises the following raw materials in percentage by mass: 35-45% of sulphoaluminate cement; 8%-12% of a superfine early strength admixture; 2%-3% of a calcium sulphoaluminate expanding agent; 1%-2% of a magnesium oxide-based expanding agent; 1-2% of a calcium-magnesium composite expanding agent; 10%-15% of hollow glass beads; 1.5%-2.5% of copper plated steel fiber; 0.1%-0.3% of polypropylene fiber; 25%-30% of graded quartz sand; 0.5%-1.0% of a polycarboxylic acid water reducing agent; 3%-5% of an alkali-free liquid accelerator; 0.3%-0.8% of a thixotropic agent; and 0.1%-0.3% of a thickening time control agent. According to the method, a multi-scale performance cooperative regulation system is innovatively constructed. Through accurate control of the hydration process of a gel system, a shrinkage stress multi-stage compensation mechanism and systematic integration of a fiber-matrix interface strengthening technology, the mutual restriction relationship among early strength development, volume stability and crack resistance of a traditional material is broken through.

The invention relates to the technical field of building materials, in particular to nano-based anti-freezing and anti-seepage congealed fat as well as a preparation method and application thereof. The nano-based anti-freezing and anti-permeability congealed fat is composed of a group A and a group B. The group A is composed of the following raw materials in parts by weight: 40-70 parts of epoxy resin, 10-20 parts of rubber modified epoxy resin, 8-15 parts of multifunctional epoxy resin, 2-7 parts of a dispersing agent and 8-15 parts of filler. The component B is prepared from the following raw materials in parts by weight: 3 to 8 parts of carborundum, 1 to 3 parts of a resistance increasing agent, 1 to 3 parts of a coupling agent, 4 to 8 parts of a toughening agent, 8 to 14 parts of a curing agent, 4 to 8 parts of a nano accelerant and 6 to 10 parts of a functional aid. The prepared nano-based anti-freezing and anti-seepage congealed grease has good anti-seepage and anti-freezing effects when being applied to concrete, meanwhile, the migration rate of chloride ions can be reduced, and the nano-based anti-freezing and anti-seepage congealed grease can be used as a repairing material in a special concrete bridge protective fence.

The invention discloses a high-performance concrete repairing material, application and a concrete structure repairing method, and belongs to the technical field of concrete structure repairing. The high-performance concrete repairing material is prepared from Portland cement, rapid hardening cement, an inert mineral admixture, an early strength agent, a submicron mineral admixture, a nano material, an anti-freezing binder, fibers, a retarder, a volume compensating agent, fine aggregate, coarse aggregate, a water reducing agent, a defoaming agent and water. Through the interaction of all the components, the functions of early strength, volume stability, freezing resistance, salt freezing resistance, fracture resistance, shrinkage resistance and the like are achieved, through the synergistic effect of all the components in the material, the overall performance of the material is improved, and the material has excellent adaptability and multifunctionality under different environmental conditions; therefore, long-term stable guarantee is provided for application in various damage scenes, and the proportion of each component of the material can be adjusted according to actual requirements of concrete structures so as to meet efficient repair in different damage scenes.

The invention relates to a marine environment mass concrete construction and crack repairing method, which comprises the following steps: in a mass concrete construction stage, carrying out aggregate precooling, carrying out layered intermittent pouring by using the precooled aggregate, and carrying out cooling treatment at the same time, so that the internal and external temperature difference is controlled within 20 DEG C; if cracks appear on the mass concrete, a polymer modified cement-based composite material is prepared for repairing, the polymer modified cement-based composite material comprises composite gel, a macromolecular tackifier and aggregate, the composite gel is based on 60%-70% of Portland cement, and 5%-8% of nano silicon powder and 10%-15% of fly ash are doped; the macromolecular adhesive comprises 0.5%-1.2% of polyacrylamide or 2%-3% of epoxy resin emulsion. When the scheme is used for repairing marine mass buildings, the overall viscosity of concrete can be improved, the internal and external temperature difference of the concrete is reduced, and the overall impermeability of the concrete repairing material is improved.

An epoxy concrete stirring device is used for solving the problems that underwater epoxy repairing materials are stored in a layered mode, the mixing time is uncontrollable, and underwater operation is inconvenient. The device comprises a stirring kettle, a kettle cover and an internal partition plate, wherein the partition plate divides a cavity into an upper-layer curing agent storage area and a lower-layer mortar mixing area; a seepage mechanism is arranged in the center of the partition plate, a movable plug is in linkage with an inner wall bayonet lock through a threaded groove in the outer wall of a stirring shaft, the stirring shaft rotates to drive the movable plug to move upwards, seepage holes in the outer wall of a liquid collecting groove are opened, and controllable inflow of a curing agent into mortar is achieved; the feeding port and the discharging port are controlled to be opened and closed through a hydraulic valve, a hydraulic machine and a hydraulic clamp respectively. According to the device, advanced reaction of components is avoided through layered isolation, mixing is accurately triggered through mechanical linkage, hydraulic driving adapts to underwater operation, it is ensured that the low consistency and high uniformity of materials are kept, and the reliability of underwater repair construction and the performance stability of the materials are improved.

The invention discloses an ingredient mixing device for CIPP-ultraviolet light curing repair material production, and particularly relates to the technical field of CIPP-ultraviolet light curing repair material.The ingredient mixing device comprises a shell, supporting frames are fixedly connected to the four corners of the lower end of the shell, and a stirring mechanism is arranged on the lower portion of the inner surface of the shell; the inner surfaces of the two circular cavities are jointly provided with a pretreatment assembly, and a premixing assembly is arranged above the stirring mechanism. According to the ingredient mixing device for production of the CIPP-ultraviolet curing repair material, the pretreatment assembly is arranged, a liquid resin material is subjected to layered swinging, scraping, runner conveying and converging mixing, and the problem that local aggregation or layered precipitation is prone to occurring due to viscosity and density differences caused by different types of liquid resin is solved; different types of liquid resins can firstly form independent thin layers, and then are gradually contacted and fused along a flowing path, so that full shearing and permeation among the liquid resins are realized, and the mixing uniformity of the liquid resins is improved.

The invention relates to the technical field of earthen archaeological site repair, and discloses an earthen archaeological site ramming modification material raw material ratio optimization method, which comprises: 1, selecting plain soil having the same or similar property with the earthen archaeological site rammed earth as a ramming main material; step 2, screening a pure soil modification material; 3, designing a three-element three-level test proportioning scheme for the three modified materials in the step 2; 4, determining the specification of the sample; 5, aiming at the determined sample specification, preparing a material test sample according to the proportioning scheme designed in the step 3; step 6, curing the prepared sample; step 7, performing indoor related tests on the cured sample; and step 8, analyzing test results in the step 7, and determining the optimal proportion of the earthen ruin ramming modification material. The invention provides a systematic and quantitative ramming reinforcement modified material proportion optimization method, so that material modification is more scientific, reasonable, economical and efficient, and it is also ensured that the modified rammed earth material is higher in strength and better in durability.

The invention relates to the technical field of building materials, in particular to a high-elasticity polyurethane-asphalt composite road crack repair material and a preparation method thereof, and the high-elasticity polyurethane-asphalt composite road crack repair material comprises the following raw materials: an asphalt-based material, functional modified polyurethane, a polyether-polyolefin block copolymer, functional rubber, 2, 6-di-tert-butyl-4-methylphenol and sodium polyacrylate. According to the invention, a lipophilic functional group is introduced into a molecular chain of the functionalized modified polyurethane, so that the functionalized modified polyurethane can interact with alkyl in asphalt to form a more stable synergistic network structure, and the phase separation phenomenon of the polyurethane and the asphalt is effectively reduced; the modified polyurethane not only improves the elasticity, flexibility, temperature resistance and crack resistance of the composite material, but also optimizes the processability of the material, enhances the interface bonding force, and further improves the repair effect and the road durability.