189 results about "Sorptivity" patented technology

The invention discloses a preparation process of a fireproof lightweight thermal-insulation cement-based mortar material, which comprises the following steps: (1) placing porous lightweight aggregate in a sodium silicate solution for standing, and drying the obtained aggregate to obtain pretreated thermal-insulation aggregate; (2) uniformly mixing silica fume, calcium silicate powder, calcium hydroxide powder and water to form slurry; mixing the pretreated thermal insulation aggregate with the slurry, separating, airing the aggregate, and curing to obtain the primary thermal insulation aggregate. And (3) spraying water on the primary thermal insulation aggregate for wetting, then spraying ethanol containing a silane coupling agent, and airing to obtain the modified thermal insulation aggregate. And (4) uniformly mixing Portland cement, the modified thermal insulation aggregate, basalt fiber and a water reducing agent as raw materials, adding water, and uniformly stirring to obtain the mortar material. According to the invention, the water absorption rate of the porous lightweight aggregate is reduced, so that the adverse effect of the high water absorption characteristic of the aggregate on the mechanical properties of the mortar material is effectively reduced.

The invention relates to a method for preparing a high-performance plate by using an ex-service wind power blade, the high-performance plate and application of the high-performance plate, and the method comprises the following steps: separating the ex-service wind power blade into fiber strips, reinforcing ribs, glass fiber reinforced plastic crushed materials, blade powder and balsa wood-PVC powder, and respectively treating the materials to prepare each component of the multi-effect high-performance plate; and finally, all the components are subjected to compression molding treatment to be manufactured into the multifunctional high-performance plate, all the components of the retired wind power blade can be recycled, and then the disposal problem of the retired wind power blade can be solved. And moreover, the glass fiber filaments obtained by degrading the retired wind turbine blade and the thermosetting resin form the reinforced panel, so that the strength of the multifunctional high-performance plate can be improved while the stability of the overall structure of the reinforced panel is ensured. In addition, compression molding treatment is performed by fully utilizing the characteristics of different parts, so that the illumination resistance of the board can be improved, the board is not easy to deform due to water absorption, and the applicability of the board can be further improved.

The utility model discloses a side slope protection structure, and relates to the technical field of side slopes. The slope comprises a slope body, a concrete slope layer is arranged on the outer surface of the slope body, a groove is formed in the top of the concrete slope layer, a water storage tank is formed in the concrete slope layer, the groove and the water storage tank communicate with a flow channel, and a plurality of planting grooves are formed in the slope surface of the concrete slope layer in an array mode; the planting groove is filled with a soil layer for planting vegetation; the water storage tank is formed in the concrete slope layer, the water storage tank is communicated with the groove through the flow channel, accumulated water on the road surface can be collected and stored, the sponge rod is connected between the water storage tank and the planting groove, water in the water storage tank is automatically supplied to the soil layer through the water absorption of the sponge rod, normal growth of green vegetation is ensured, and the service life of the planting groove is prolonged. And meanwhile, the stored water source is used for automatically supplying water, the irrigation interval is prolonged, the irrigation frequency is reduced, and therefore the practicability is improved.

The invention relates to the technical field of fired ceramsite, and particularly discloses high-strength ceramsite prepared from coal gangue as well as a preparation method and application of the high-strength ceramsite. The invention discloses a preparation method for preparing ceramic particles from coal gangue. The preparation method comprises the following steps: drying; performing pyrolysis; decarburization: carrying out heating combustion-supporting on a material layer from top to bottom by hot air with the temperature of 450-600 DEG C from the pyrolysis section and the cooling section in the decarburization section, and completing decarburization of the ceramsite from top to bottom; hot air from the cooling section is subjected to heat compensation and temperature rise to heat ceramsite, the temperature of a ceramsite material layer is 1000-1140 DEG C, and the ceramsite material layer is subjected to heating combustion supporting from top to bottom; and cooling: cooling the roasted ceramsite to 80-100 DEG C. By means of the technical scheme, the treatment scale of the coal gangue ceramsite can be increased, the production cost is effectively reduced, and the ceramsite meets the requirements for decarburization, low water absorption and high strength.

The invention discloses a high-salt-corrosion-resistant concrete pouring material and a preparation method thereof, and relates to the technical field of high-salt-corrosion-resistant concrete, and the high-salt-corrosion-resistant concrete pouring material comprises the following components in parts by weight: 5-10 parts of modified charcoal, 1.5-3 parts of a corrosion inhibitor, 320-360 parts of cement, 650-700 parts of river sand, 20-30 parts of silica fume, 0.3-0.6 part of super absorbent resin, and 0.2-0.8 part of a water reducing agent. According to the high-salt-corrosion-resistant concrete pouring material and the preparation method thereof, a protective film is formed on the surface of a reinforcing steel bar through the corrosion inhibitor, the anodic oxidation reaction is inhibited, the reinforcing steel bar is prevented from being corroded, eugenol releases corrosion inhibition molecules, a hydrophobic protective film is formed on the surface of the reinforcing steel bar, and electrochemical corrosion is inhibited; meanwhile, through the synergistic effect of a physical barrier and chemical passivation, the calcium-aluminum salt-eugenol composite corrosion inhibitor not only can block a corrosion path through physical film formation, but also can inhibit electrochemical reaction through chemical adsorption, so that the corrosion inhibition efficiency is improved.

The invention discloses a light high-strength fireproof decorative material as well as a preparation method and application thereof, belongs to the technical field of fireproof decorative materials, and aims at solving the technical problem that the fire resistance rating, the water absorption performance and the mechanical strength of a light fireproof material in the prior art need to be further improved. The lightweight concrete is specifically prepared from the following components in parts by weight: 80-100 parts of a silicon-calcium material, 8-10 parts of modified triphosphoric acid, 10-14 parts of a modified fiber reinforcement, 15-18 parts of modified lightweight aggregate, 5-8 parts of an adhesive and 2-3 parts of an additive, the modified triphosphoric acid is used as a flame retardant, the lightweight aggregate is pretreated, the fiber reinforcement is improved, and the lightweight high-strength fireproof decorative material is prepared through mutual cooperation with the additive, so that the fireproof performance and compressive strength of the material are improved, and the volume density of the material is reduced.

The invention relates to the field of building materials, in particular to a recycled lightweight aggregate concrete wallboard production process optimization method and system.The method comprises the steps that a building solid waste set and a carbonization box are obtained, crack scanning analysis is conducted on solid waste samples, a recycled concrete set is obtained, the recycled concrete set is crushed and cleaned, initial aggregate is obtained, n comprehensive test groups are obtained, and n is a positive integer; carrying out carbonization analysis on the aggregate sample based on the comprehensive test group and the carbonization box to obtain a sample carbonization value, taking the comprehensive test group corresponding to the maximum sample value as an optimal test group, carrying out carbonization treatment on the initial aggregate based on the optimal test group and the carbonization box, carrying out water absorption performance test on the recycled aggregate, and calculating the addition amount of the recycled aggregate. And obtaining a target concrete wallboard based on the recycled aggregate addition amount and the recycled aggregate, and completing production process optimization of the concrete wallboard. According to the invention, the automation degree of recycling the lightweight aggregate can be improved, and the product quality of the finally produced concrete wallboard is improved.

The invention discloses a magnesium phosphate-based cement grouting material as well as a preparation method and application thereof. Raw materials of the magnesium phosphate-based cement grouting material comprise a component A and a component B, the component A is prepared from the following raw materials in parts by weight: 140 to 200 parts of calcined magnesium oxide, 0 to 30 parts of bentonite, 0.2 to 0.5 part of hydroxypropyl methyl cellulose, 1 to 10 parts of an additive and 70 to 140 parts of water; the component B comprises the following raw materials in parts by weight: 70-100 parts of first dihydric phosphate, 20-50 parts of pretreated polymer water-absorbent resin, 0.5-2 parts of sodium polyacrylate and 30-70 parts of water; the pretreated high-molecular water-absorbent resin is obtained by soaking high-molecular water-absorbent resin in an aqueous solution of second dihydric phosphate. The magnesium phosphate-based cement grouting material disclosed by the invention has the characteristics of low shrinkage, short and adjustable setting time, high compressive strength, simplicity in construction, low cost, environment friendliness, good slurry injectability, good water dispersibility resistance and good durability in a long-term water soaking environment.

The application discloses a magnesium phosphate-based cement grouting material and a preparation method and application thereof. The raw materials of the magnesium phosphate-based cement grouting material include A component and B component; the raw materials of the A component include, in parts by weight, calcined magnesium oxide 140-200 parts, bentonite 0-30 parts, hydroxypropyl methylcellulose 0.2-0.5 parts, an additive 1-10 parts and water 70-140 parts; the raw materials of the B component include a first dihydrogen phosphate 70-100 parts, pretreated high-molecular water-absorbing resin 20-50 parts, sodium polyacrylate 0.5-2 parts and water 30-70 parts; the pretreated high-molecular water-absorbing resin is obtained by soaking the high-molecular water-absorbing resin in an aqueous solution of a second dihydrogen phosphate. The magnesium phosphate-based cement grouting material has the characteristics of low shrinkage, short and adjustable setting time, high compressive strength, simple construction, low cost, green environmental protection, good grout injection, good water dispersion resistance, good durability in a long-term soaking environment and the like.

The invention relates to the technical field of construction devices, in particular to a self-curing concrete slip form construction metal mold with variable scale width, which comprises a left side frame concave plate, a right side frame convex plate, a top film covering mechanism, a left side film covering mechanism and a right side film covering mechanism, the end face of the left end of the right side frame convex plate is matched with the left side frame groove in a sliding mode, and a feeding opening is formed in the lower portion of the left side wall of the left side frame concave plate; the left frame concave plate and the right frame convex plate are connected to form a cavity for filling concrete, and the blending formula material comprises 0.17% of super absorbent resin, 21% of a polycarboxylic acid water reducer and 0.012% of citric acid. The left-right width of the slip form mold can be adjusted, and therefore the requirement for different widths of poured anti-collision guardrails is met; by means of automatic film sealing and blending of specific formula materials in concrete, manual maintenance can be omitted, and the slip-form construction requirements for low-slump concrete construction and pumping are effectively met.

The invention relates to a preparation method of a modified waste concrete recycled aggregate, which comprises the following steps: crushing waste concrete, screening the crushed waste concrete with a proper particle size to serve as a raw material of the recycled aggregate, washing with a shaking sieve to remove part of edges and corners about to fall off, and carrying out gelation reaction by using modified solutions such as nano silicon dioxide and water-soluble silicate to obtain the modified waste concrete recycled aggregate. According to the invention, fine pores on the surfaces of concrete particles are blocked and repaired, so that the structure is complete and compact, the mechanical strength of the aggregate is enhanced, the porosity and the water absorption rate are reduced, and the water absorption and the mechanical strength are further reduced through phenolic resin coating. The modified waste concrete recycled aggregate is mixed with cement, zeolite powder and the like, the mixture is pressed into a blank, and the artificial stone with excellent mechanical properties and low water absorption is obtained after carbonization curing. The method provided by the invention has good application prospects and environmental protection significance.

The invention discloses a plugging particle, a preparation method, application and a grouting material, the plugging particle is of a core-shell structure and comprises a force-bearing inner core, the force-bearing inner core is coated with an expansion functional layer, and the expansion functional layer is coated with a delayed hydrogel outer film layer; wherein the inner core is made of one or more of quartz sand, kaolin and inorganic fibers; the expansion functional layer comprises modified bentonite and a super absorbent polymer; the delayed hydrogel outer film layer comprises a water-soluble film; the particle size of the blocking particles is 0.5 to 2.5 mm; through material structure optimization and response mechanism design of the functional plugging particles and the special grouting liquid, the automatic plugging function in the grouting process without mechanical triggering, a chemical expanding agent and a complex plugging device is achieved; and the method is suitable for scenes with high requirements on plugging precision, construction efficiency and structural stability in complex rock mass crack grouting engineering.

This underwater sliding member is obtained by molding a resin composition which contains a thermoplastic resin that has water absorption resistance, and a granular inorganic filler and / or a plate-shaped inorganic filler, wherein the Mohs hardness of the inorganic filler is 5 or less.

Belonging to the technical field of concrete, the invention discloses a low shrinkage and high crack resistance concrete, which is prepared from the following raw materials by mix proportion: 130-160 kg / m < 3 > of cement, 50-70 kg / m < 3 > of fly ash, 50-70 kg / m < 3 > of mineral powder, 600-750 kg / m < 3 > of sand, 1300-1500 kg / m < 3 > of gravel, 3-5 kg / m < 3 > of a water reducer, 90-130 kg / m < 3 > of water, and 3-4 kg / m < 3 > of an anti-cracking agent. The anti-cracking agent is of a structure of cellulose grafted hyperbranched polycarboxylic acid and diacetone glucose polyacrylate, hydration heat release is slowly carried out through the dual effects of high water absorption and delayed coagulation, and the time needed by exchange of hydration heat and the environment is given; the anti-cracking agent has the advantages of good dispersity, small particle size, high water absorption and long slow release time.

The invention relates to a composite resistance reducing agent and a preparation method and application thereof, and belongs to the technical field of grounding materials of electric power protection systems. The composite resistance reducing agent provided by the invention is prepared from the following components in parts by weight: 20 to 40 parts of bentonite, 20 to 30 parts of conductive cement, 20 to 30 parts of graphite and 5 to 15 parts of conductive mica powder. The bentonite, the conductive cement, the graphite and the conductive mica powder are reasonably compounded, so that the composite resistance reducing agent has good water absorption and water retention, the lower resistivity of the resistance reducing agent is kept for a long time, meanwhile, the composite resistance reducing agent can well permeate and diffuse into surrounding soil, and long-term stable work of the composite resistance reducing agent can also be guaranteed in different climatic environments. The composite resistance reducing agent does not contain inorganic salt, does not corrode various electrode materials, is non-toxic and does not have negative influence on the surrounding environment.

The invention discloses an automatic monitoring power cable which comprises a wire, a first coating layer is arranged outside the wire, a second coating layer is arranged outside the first coating layer, an insulating layer is arranged outside the second coating layer, and a plurality of warning positioning mechanisms are arranged between the second coating layer and the insulating layer. According to the invention, when fog water or rainwater in the environment enters a damaged part of an insulating layer, a spherical sponge absorbs water and expands, so that the spherical sponge protrudes outwards, a worker can accurately position the insulating layer, and because the spherical sponge, a filling sponge and a columnar sponge all have water absorbability, heat transfer is carried out between water and a bottom ring block, so that the damage of the insulating layer is avoided. Therefore, the temperature of the bottom ring block at the position is lower than that of other bottom ring blocks at the positions where the insulating layers are not aged or damaged, the temperature is found in time through detection of the temperature measuring cable, the position is overhauled in time, further damage to the insulating layers is avoided, the service life of the power cable is greatly prolonged, and the safety in the using process is greatly improved.

The invention discloses a method for preparing a concrete curb by using detoxified fly ash and the concrete curb. The concrete curb is prepared from the following raw materials in parts by weight: 200-250 parts of cement; 0-60 parts of fly ash; 50-70 parts of mineral powder; 15 to 60 parts of detoxified fly ash; 1700 to 1900 parts of aggregate; 170 to 200 parts of water; and 2-5 parts of a water reducing agent. The detoxified fly ash can be effectively digested, the resource utilization rate is increased, meanwhile, the compressive strength of the product can be improved, and the water absorption performance and the freeze-thaw resistance both meet the requirements.

The invention discloses recycled aggregate concrete slurry and a prefabricated concrete laminated slab, and belongs to the technical field of prefabricated building materials. The recycled aggregate concrete slurry consists of a cementing material, aggregate, a functional additive, an additive and mixing water, the functional additive is selected from super absorbent resin, end hook type steel fiber and polypropylene fiber; the aggregate is composed of recycled coarse aggregate, natural gravel and medium sand; the additive comprises a water reducing agent. Concrete prepared from the recycled aggregate concrete slurry has excellent normal-temperature comprehensive mechanical properties, excellent high-temperature burst resistance, good workability and volume stability and certain economical efficiency and environmental friendliness. The recycled aggregate concrete slurry is used for preparing the prefabricated concrete laminated slab, and the obtained prefabricated concrete laminated slab has excellent durability and good safety.

The invention provides a capillary crystalline agent core material microcapsule and a preparation method and application thereof, and relates to the technical field of material science and engineering, the capillary crystalline agent core material microcapsule comprises a wall material and a core material; the wall material comprises a water-absorbing material, the water-absorbing material comprises at least one of sodium alginate and modified sodium alginate, and the mass of the water-absorbing material is not lower than 60% of the mass of the wall material; the core material comprises a capillary crystalline agent and a dispersing agent, and the mass of the capillary crystalline agent is not lower than 60% of the mass of the core material; the mass ratio of the wall material to the core material is (3: 7): (7: 3); and the particle size of the capillary crystalline agent core material microcapsule is 50-300 microns. The capillary crystalline agent core material microcapsule is applied to concrete repair, the crystallization reaction can develop along the depth of a crack, invasion of water and corrosive ions is inhibited for a long time, the service life of the structure is prolonged by 2-3 times, and the compressive strength / breaking strength of a repaired crack area can be recovered to 90% or above of that of original concrete.

The invention discloses a preparation method of an alkali-activated porous geopolymer wall material by using recycled fine aggregate to load an enhancer. The alkali-activated porous geopolymer wall material is prepared from the recycled fine aggregate, the enhancer, a cementing material, an alkali activator, a foaming agent and a water reducing agent. According to the method, slow-release carbonization strengthening of a porous geopolymer which takes water granulated slag and fly ash as binding materials, sodium hydroxide and water glass as alkali activators and hydrogen peroxide as a foaming agent is realized by utilizing a water-absorbing loading enhancer of recycled fine aggregate, so that the wall material with excellent performance is prepared; high-value utilization of building and industrial solid waste and low-carbon building wall manufacturing are achieved, and the problems that due to high water absorption and low hardness of recycled fine aggregate, the pore structure of an alkali-activated porous geopolymer wall material is distorted, the compressive strength is reduced, and an existing recycled fine aggregate strengthening technology has adaptability defects are solved.

The invention discloses a long-distance pressure tunnel positioning method based on inner wall feature texture auxiliary identification, and the method is based on the fact that the inner wall of a long-distance pressure tunnel presents different feature textures at different times due to the non-uniform water absorption of the inner wall material. Meanwhile, in combination with the difference of characteristic textures such as pores, gaps, denudation, damage, aging and attachments of concrete structures at different parts of the tunnel and the relevance of the characteristic textures at the same position and at different time, the characteristic textures of the inner wall are associated with the specific position by adopting a mode similar to fingerprint identification based on a panoramic database constructed in a non-pressure period and an emptying period; and finally, comprehensive, accurate and rapid positioning of the underwater non-defect area and the defect area in the'pressure period 'in the long-distance pressure tunnel is achieved.

The utility model provides a detection device for grading and color separation of ceramic tiles, which relates to the technical field of ceramic tile detection and comprises a detection box, a feeding conveying belt and a discharging conveying belt are arranged on the detection box, and a flatness detection camera, a color difference detection camera and a plurality of light sources are further arranged in the detection box. A U-shaped self-moving pick-and-place assembly is further arranged in the detection box, the U-shaped self-moving pick-and-place assembly is used for picking and placing the ceramic tiles, and a water tank is further installed in the detection box. By arranging the U-shaped self-moving pick-and-place assembly, the ceramic tiles can be lifted, and the situation that in the prior art, light rays are prone to refraction or scattering when penetrating through glass or a transparent partition plate, the shooting effect is poor, and then grading and color separation of the ceramic tiles are affected is effectively avoided; in addition, a water tank is further arranged in the detection box, the water absorption of the ceramic tiles can be tested, and effective supplement is further made for classification of the ceramic tiles.

The invention discloses a construction evaluation method for building masonry, which comprises the following steps: establishing a stratum acquisition area in a construction area, acquiring a soil sample, and dividing the soil sample into a hard soil layer and a soft soil layer according to the water absorption of the soil layer; according to parameters of different stratums, design parameters of a foundation pile and a foundation ground beam are formulated, the foundation pile and the foundation ground beam serve as a foundation of a construction building masonry, a simulation model is established according to data of the foundation pile and the foundation ground beam, and stress needing to bear the building masonry is applied to the simulation model. And evaluating the stability of the foundation piles, the foundation ground beams and soil layers and rock stratums under the foundation, and giving construction suggestions. According to the scheme, detailed stratum test data and a comprehensive stability analysis method of construction analogue simulation are combined, so that the safety and the reasonability of the construction design scheme of the building masonry are ensured, and a solid foundation is provided for construction safety and smooth service.

The invention discloses a freeze-thaw damage self-repairing foam concrete material and a preparation method thereof, and relates to the technical field of building materials. The fly ash with high hydration activity can induce in-situ self-repairing of original defects of the cement stone microstructure. The concrete initiates microcracks under initial freezing and thawing, the proper humidity in the concrete is maintained by adding the fly ash, initiating hydration and adding the water-absorbent resin material, and the cracks are sealed by generated hydration products, so that the compactness of the concrete is recovered. The water-absorbent resin material can continuously absorb and release water in a freeze-thaw cycle, and the process can be triggered circularly, so that the self-repair of multiple freeze-thaw damages is realized. The carboxymethyl cellulose is used for preparing the water-absorbent resin, and the carboxymethyl cellulose has good water absorbability, so that the water absorbability of the water-absorbent resin is improved. Calcium carbonate is added into the water-absorbent resin to form a cross-linked network, so that the stability in the concrete is improved.

This application relates to a foundation pit structure and its construction method, comprising a foundation pit main body with a support structure installed. The support structure includes a reinforcement component and a drainage component. The drainage component is installed on the reinforcement component and includes a fall arrest net and a drainage pipe. The drainage pipe is installed inside the reinforcement component. One side of the fall arrest net is connected to the reinforcement component. The fall arrest net has multiple water storage channels inside. The bottom of the fall arrest net is in contact with the bottom of the foundation pit main body. The bottom of the fall arrest net is provided with a water-absorbing fixing component, which is driven into the bottom of the foundation pit main body. The reinforcement component includes corner reinforcement components and vertical reinforcement components. The corner reinforcement components are fixed at the corners of the foundation pit main body and fit against the corner walls of the foundation pit main body. The vertical reinforcement components are connected to the corner reinforcement components. The foundation pit structure of this application is robust, less prone to lateral collapse, and facilitates drainage.

The utility model relates to strip cleaning technical field, concretely is a kind of strip cleaning after quick removal residual moisture device, including mounting seat, two rows of high-speed fan are fixedly installed on the mounting seat, two rows of high-speed fan are used for passing through for strip between, the air outlet of high-speed fan is fixedly installed with the air scoop of output port alignment strip, the drying box of being located in the upper and lower sides of strip is fixedly installed on the mounting seat, a side for being used to contact with the dry towel of strip is wrapped on the drying box. By setting high-speed fan, most of the moisture on the surface of strip is blown away from the strip, the residual moisture is wiped off by the subsequent dry towel, the moisture can be completely removed from the surface of strip, the production efficiency is improved, and the dry towel can be dried, so that the dry towel always maintains good water absorption performance. Even if the strip keeps full-speed operation, the drying quality can still be guaranteed, the subsequent coating process is facilitated, and the quality of the strip is guaranteed.

Provided are a method for producing a recycled water-absorbing resin which achieves reduction in deterioration of water absorption performance and reduction in coloration, and a method for producing a water-absorbing resin with use of the recycled water-absorbing resin. An embodiment of the present invention relates to, for example, a method for producing a recycled water-absorbing resin from a used absorbent article, the method including: a urea removal step of removing urea so that a urea content in the recycled water-absorbing resin becomes 2 mass% or less; and a recovery step of recovering a water-absorbing property.

The invention discloses a multi-parameter joint evaluation method for transmission performance of ultra-high performance concrete, and belongs to the technical field of concrete durability evaluation. The multi-parameter joint evaluation method comprises the following steps: preparing an ultra-high performance concrete test piece with a gradient function; calculating a steel fiber distribution coefficient; obtaining a slice test piece; performing a gas permeation test on the test piece with the undamaged slices; performing a capillary water absorption experiment on the test piece with the undamaged slices; carrying out a splitting tensile strength test to obtain slice test pieces with different damage degrees; performing a gas permeation test and a capillary water absorption test on the damaged slice test piece; and calculating and fitting the experimental results to obtain a concrete transmission performance multi-parameter joint evaluation equation set under the steel fiber distribution coefficient. According to the method, the gas transmission performance and the capillary water absorption are tested at different slice positions of the ultra-high performance concrete test piece with a certain mixing ratio, the evaluation process of the concrete transmission performance is obtained, the process of permeability evaluation through multiple parameters is introduced, and the accuracy of the evaluation result is improved.

The invention discloses a multi-solid-waste high-strength baking-free brick and a preparation method thereof, and belongs to the technical field of resource utilization of copper smelting slag. The multi-solid-waste high-strength baking-free brick is prepared from the following raw materials in parts by weight: 56 to 72 parts of copper smelting slag, 4 to 12 parts of red mud, 4 to 12 parts of ardealite, 5 to 10 parts of Portland cement, 10 to 15 parts of slag, 15 to 20 parts of water, 0.5 to 1 part of calcium sulphoaluminate and 1 to 2 parts of sodium silicate. A synergistic excitation mechanism of the red mud and the ardealite is innovatively provided, the composite excitation effect of the calcium sulphoaluminate and the sodium silicate is combined, a multi-solid-waste gelling system is constructed, and an economical and efficient absorption approach of comprehensive utilization of various solid wastes such as the copper smelting slag, the red mud and the ardealite is achieved. And the prepared multi-solid-waste high-strength baking-free brick has high strength, high water resistance and low water absorption.