53results about How to "Promotes hydration" patented technology

The invention relates to the technical field of concrete preparation, in particular to fiber-reinforced building solid waste recycled aggregate concrete and a preparation method thereof.The preparation method comprises the following preparation steps that S1, recycled coarse aggregate, slag, fly ash and river sand are mixed and stirred according to the proportion, and a cement mixture is obtained; s2, calcining the cement mixture for 2-3 hours to obtain cement clinker; s3, cement clinker, modified fibers, modified graphene oxide and tetrasodium iminodisuccinate are mixed according to the proportion and then poured into a stirrer to be stirred for 5-6 min; and S4, adding water into the stirrer according to the proportion, continuously stirring for 6-10 minutes, and taking out to obtain the fiber-reinforced building solid waste recycled aggregate concrete. According to the invention, the polystyrene fiber and the concrete are connected more tightly by using the modified fiber, and the polystyrene fiber can be subjected to multiple reactions with components in the concrete in an alkaline environment of the concrete to form a stable network structure, so that mechanical indexes such as crack resistance and breaking strength of the concrete are improved.

The invention discloses 3D printing low-carbon concrete containing modified recycled aggregate and a micro-powder reinforcer. The 3D printing low-carbon concrete is prepared by the following steps: (1) putting recycled concrete coarse aggregate into sodium or potash water glass, and performing ultrasonic treatment; then separating the coarse aggregate, performing carbonization treatment, and heating the obtained coarse aggregate to obtain the pretreated recycled aggregate. And (2) placing the pretreated recycled aggregate in saturated lime water, and carrying out heating and heat preservation treatment to obtain the modified recycled aggregate. And (3) forming a wet material from the waste cement slurry powder, gamma-C2S powder and water, performing carbonization treatment on the wet material, performing heating treatment, and grinding the obtained solid to obtain the modified regenerated micro-powder enhancer. And (4) uniformly mixing the cement, the modified recycled aggregate, the fine aggregate, the micro-powder enhancer, the water reducing agent and the water to obtain the concrete. The process provided by the invention not only improves the mechanical strength and fluidity of the 3D printing concrete prepared from the recycled concrete aggregate, but also consumes carbon dioxide and reduces carbon emission.

The invention belongs to the technical field of solid waste resource utilization, and discloses an activity-enhanced solid waste-based sludge curing agent as well as a preparation method and application thereof. The sludge curing agent comprises the following raw materials in percentage by mass: 30-40% of cement, 15-25% of S95 mineral powder, 15-23% of steel slag powder, 16-26% of an activity enhancing component and 0.5-3% of a composite exciting agent, wherein the activity enhancing component is prepared from the following raw materials in percentage by mass: 35 to 40 percent of desulfurized gypsum, 35 to 40 percent of carbide slag and 20 to 30 percent of biomass ash; the composite exciting agent comprises the following raw materials in percentage by mass: 30-35% of metakaolin, 30-35% of sodium sulfate, 15-20% of sodium silicate and 15-20% of sulfonated oil. According to the sludge curing agent, the industrial solid waste accounts for 57% or above, the desulfurized gypsum, the carbide slag and the biomass ash form an activity enhancing component, the activity enhancing component is matched with the composite exciting agent to jointly enhance and excite the activity of the metallurgical slag solid waste, and therefore the excellent curing effect is achieved, and when the sludge curing agent is used for sludge curing, the 3d unconfined compressive strength of a sludge curing body is larger than or equal to 0.5 MPa; and the 28d unconfined compressive strength is greater than or equal to 1.4 MPa.

The invention discloses UHPC based on carbon nanotube modified aggregate and a preparation method and application thereof, and belongs to the technical field of novel building materials. The raw materials comprise 1417 to 1517 parts of cement, 135 to 165 parts of silica fume, 35 to 43 parts of steel fiber, 800 to 1000 parts of sintered bauxite aggregate, 4.22 to 10.56 parts of carboxyl functionalized carbon nanotube, 410 to 510 parts of water and 6 to 12 parts of a water reducing agent; wherein the sintered bauxite aggregate is modified by carboxyl functionalized carbon nanotubes. The chemical reaction of oxygen-containing functional groups (carboxyl) in the carboxyl functionalized carbon nanotubes is utilized to form covalent bonds, the hydration reaction in cement is catalyzed and promoted, and the carboxyl functionalized carbon nanotubes provide more nucleation sites, so that the microstructure of the cement-based material is improved, and the integrity of the cement-based material is improved.

The invention belongs to the technical field of solid waste recycling, and particularly relates to an all-solid waste alkali-activated cementing material and a preparation method thereof. The all-solid waste alkali-activated cementing material disclosed by the invention is prepared from the following components in parts by weight: 60 to 140 parts of fly ash, 200 to 360 parts of slag, 5 to 45 parts of carbide slag, 45 to 180 parts of regenerated micro powder, 30 to 70 parts of alkali activator, 45 to 225 parts of organic monomer and 120 to 260 parts of water, the adhesive further comprises a cross-linking agent and an initiator. According to the all-solid waste alkali-activated cementing material, the utilization rate of solid waste resources such as construction waste can be increased, carbon emission in industrial production can be reduced, the strength and toughness of the material are improved while the dosage of the alkali activator is reduced, and the all-solid waste alkali-activated cementing material is wide in application range.

The invention relates to the technical field of building materials, and provides a preparation method of a functional fiber modifier, the modifier and application of the modifier in precast concrete.The method comprises the steps that S1, a calcium raw material is added into water to be stirred and mixed, sealed standing and aging are conducted for 20-48 h, a mixed solution is obtained, and the temperature of the water is controlled to range from 80 DEG C to 100 DEG C; s2, adding a siliceous raw material and a structure-directing agent into the mixed solution, uniformly mixing, and adding into a reaction kettle; s3, the temperature of the reaction kettle is controlled to rise, meanwhile, the stirring rotating speed is controlled to be 200-400 rpm, when the temperature rises to 180-220 DEG C, the stirring rotating speed is controlled to be 50-70 rpm, and heat preservation is conducted for a reaction; s4, after the reaction is finished, cooling, taking out slurry, filtering and drying to obtain functional fibers; and S5, dispersing the reinforcing agent in water, adding the functional fibers, and stirring for reaction to obtain the functional fiber modifier. According to the technical scheme of the invention, the functional fiber modifier has obvious rapid hardening and early strength effects, has no adverse effect on concrete performance, and can realize energy saving and steam curing-free and rapid demolding to improve the template turnover rate.

The invention discloses solidified soil prepared from solid waste and a preparation method of the solidified soil, and relates to the technical field of constructional engineering materials. According to the solidified soil prepared from the solid waste, the self-made anti-dispersing agent and the composite curing agent are added, the self-made anti-dispersing agent is prepared by introducing graphene oxide to the surface of pretreated aramid fiber and then generating nano silicon dioxide on the surface in situ, the self-made anti-dispersing agent enters solidified soil components, dispersion is reduced, and therefore the strength of the solidified soil is kept; the composite curing agent comprises modified glass fiber reinforced plastic, sulphoaluminate cement, Portland cement and gypsum powder, the modified glass fiber reinforced plastic is prepared by carboxylating glass fiber reinforced plastic and then coating the carboxylated glass fiber reinforced plastic with a sulfydryl cross-linked polymer, and the modified glass fiber reinforced plastic enters the structure of the cured soil, so that shrinkage deformation is prevented, and the curing strength is enhanced.

The invention belongs to the technical field of building materials, and particularly relates to a curing agent for fluid stabilized soil and a preparation method and application thereof. The curing agent comprises the following components in parts by weight: 20-40 parts of cement, 20-40 parts of slag, 15-35 parts of steel slag, 10-30 parts of fly ash, 5-15 parts of carbide slag, 1-10 parts of desulfurized gypsum, 0.01-1 part of a hyperdispersant, 0.01-2 parts of an expanding agent and 0.01-0.5 part of an internal curing agent. The curing agent disclosed by the invention has an excellent curing effect, can overcome the problem that high fluidity, high strength and low shrinkage cannot be considered in the existing fluid-state solidified soil technology, can improve the durability of the fluid-state solidified soil, and is suitable for various projects such as foundation backfilling and site leveling.

The invention relates to the technical field of cement additives, in particular to a powder composition for cement addition and a preparation process of the powder composition, modified sodium lignin sulfonate serves as an important component of the powder composition, dispersity and stability of sodium lignin sulfonate are effectively improved through sulfomethylation and condensation reaction, and in cement concrete, the powder composition has the advantages that the dispersity and stability of sodium lignin sulfonate are improved; the modified sodium lignin sulfonate can be adsorbed on the surfaces of cement particles to form a protective film, friction force and resistance among the cement particles can be reduced, so that the fluidity of the concrete is improved, meanwhile, a sulfomethylation structure of the modified sodium lignin sulfonate can chemically react with calcium ions in the cement to form stable calcium salt, the stability of the concrete is further enhanced, and the service life of the concrete is prolonged. According to the powder composition for cement addition and the preparation method of the powder composition, the performance of cement concrete can be remarkably improved through well-designed components, and the composition has excellent flowability, anti-permeability, anti-freezing property, water resistance, mildew resistance and rust resistance.

The invention relates to a cement-based material with a photocatalytic function, a coating, a casting body and a preparation method, the cement-based material with the photocatalytic function comprises cement-based dry powder, and the cement-based dry powder comprises, by weight, 1-1.5 parts of molybdenum disulfide nanoflowers and 9-19 parts of Portland cement. The preparation method has the beneficial effects that the molybdenum disulfide nanoflower is directly introduced into a cement-based material as a photocatalyst, so that the self-cleaning function and the dye degradation function of the material are increased, the hydration rate and the mechanical property of the cement are improved, and the cement is a green and sustainable building material. The preparation method of the cement-based material with the photocatalytic function is simple and efficient.

The invention provides self-leveling dry-mixed mortar and application. The self-leveling dry-mixed mortar is prepared from the following components in parts by weight: 378 to 399 parts of cement, 81 to 85.5 parts of coal ash, 81 to 85.5 parts of modified waste bentonite cat litter, 756 to 798 parts of fine aggregate, 27 to 27.8 parts of waste bentonite cat litter filter residue powder and 17.6 to 18.8 parts of additive. The treated waste bentonite cat litter is used in the self-leveling dry-mixed mortar, so that the self-leveling dry-mixed mortar has longer setting time and better water-retaining property, the problems of'fast drying 'and'water loss' caused by tropical monsoon climate are solved, and meanwhile, the waste bentonite cat litter is fully utilized.

The invention discloses a curing agent, a tunnel waste slag regenerated low-permeability material based on curing of various solid wastes and a preparation method of the tunnel waste slag regenerated low-permeability material, and belongs to the technical field of comprehensive utilization of tunnel waste slag. The curing agent comprises a gelling component, an alkali-activated component, a bonding component and a reinforcing component, wherein the ratio of the gelling component to the alkali-activated component to the bonding component to the reinforcing component is (6-7): 1: (0.45-0.7): (1.6-1.7). Materials prepared from the curing agent comprise tunnel waste slag, the curing agent and water. The binding component and the multi-element solid waste synergistically improve the anti-permeability performance of the material, a three-dimensional network formed by the binding component and hydration products of the blast furnace slag and the ferronickel slag jointly act, tiny pores in the material are filled, and the porosity is reduced; and the material has higher thermal stability and gelling capacity, and is more resistant to acid and alkali environments, so that better support and stability can be provided when solid wastes are mixed.

The invention discloses an application of an anti-corrosion and anti-seepage agent in a phosphate radical and fluorine ion environment, which is characterized in that the anti-corrosion and anti-seepage agent is added into concrete according to 0.5-3% of a cementing material to prepare a required structure for resisting corrosion of phosphate radicals and fluorine ions. A concrete test piece added with the anti-corrosion and anti-seepage agent is in a phosphorus-fluorine acid environment for a long time, the compressive strength of the concrete test piece is still in an enhanced trend, the addition of the anti-corrosion and anti-seepage agent has the effect of resisting corrosion of phosphate radical and fluorine ion environment acid wastewater, and a concrete structure can still be very stable even in a strong acid environment; the high efficiency can provide a feasible solution for prolonging the service life of highly acidic environment structures such as ardealite storehouses and the like.

The invention provides a pH value-based one-way regulation and control concrete hydrophilic-to-hydrophobic material and a preparation method thereof, and belongs to the technical field of building materials. The material is prepared from the following raw materials in percentage by weight: 7%-12% of inorganic filler, 0.40%-1.20% of azodiisobutyronitrile, 5%-10% of aminopropyl trimethoxy silane, 0.20%-1.00% of dibutyltin dilaurate, 7%-11% of a hydrophobic modifier, 14%-19% of absolute ethyl alcohol, 14%-20% of an acid solution, 13%-18% of an alkali solution and 20%-24% of deionized water. According to the present invention, the hydration reaction of the concrete cementing material at the early hardening stage is promoted, the compactness of the concrete structure is enhanced, the hydrophilic-to-hydrophobic conversion is achieved by using the strong alkaline environment in the concrete, the invasion of the external moisture and the corrosive ion medium after the concrete hardening is effectively resisted, and the durability of the concrete is improved.

The application relates to the technical field of roadbed engineering, in particular to a roadbed filler based on high-water-content gold flotation tailings and a preparation method thereof.A roadbed filler based on high-water-content gold flotation tailings is prepared from the following raw materials: gold flotation tailings, modified precipitation material, curing agent, activator, solid modifier and anti-cracking agent; the water content of the gold flotation tailings is lower than 20%; in the application, the porous precipitation material and the low-carbon cementing material are used to perform pre-dehydration treatment and efficient curing treatment on the high-water-content gold flotation tailings, so that the roadbed filler with low carbon and low cost and with high strength and low shrinkage is obtained.

The invention discloses a phosphorite slag-based early-strength anti-crack concrete admixture and a preparation method thereof, and the phosphorite slag-based early-strength anti-crack concrete admixture comprises the following raw materials by weight: 40-60 parts of modified phosphorite slag, 15-25 parts of fly ash, 7-10 parts of sodium bentonite, 5-8 parts of diatomite, 10-15 parts of an additive, and 15-25 parts of composite fiber. According to the admixture, phosphorus slag serves as a main raw material, the surface is modified through a chemical method, meanwhile, fly ash, sodium bentonite, kieselguhr, an additive and composite fibers are used as auxiliary materials, recycling of the phosphorus slag is achieved, the internal structure of concrete is optimized, and the early strength performance, the crack resistance and the salt corrosion resistance of the concrete are improved.

The invention discloses a water-saving spray curing device for a concrete building structure, and relates to the technical field of spray curing, comprising a workbench, a lifting device is fixedly installed at the bottom of the workbench, a moving device is fixedly installed at the bottom of the lifting device, and the spray curing device is arranged on the top of the workbench, the spray curing device comprises a water storage cylinder, a pumping device, a water tank, a spraying device, a water collecting tank, a water guide pipe, a support frame, a motor, a reciprocating screw, a fixed plate, a trapezoidal plate, a threaded block, a sliding rod and a circular ring, the water in the water storage cylinder is pumped out by the pumping device, and then enters the spraying device through the water tank, and the wall is sprayed by the spraying device, the water storage cylinder is fixedly installed on the top of the workbench, the pumping device is fixedly installed on the bottom of the inner wall of the water storage cylinder, and the water tank is fixedly installed on the top of the workbench, and water resources can be saved by collecting splashed water, and water can be prevented from flowing downwards and directly causing water resources waste.

The invention relates to the technical field of cement production, and particularly discloses a cement mineralizer as well as a preparation method and application thereof. The cement mineralizing agent is prepared from the following raw material components in parts by weight: 15 to 25 parts of N-methyldiethanolamine, 8 to 20 parts of polytetramethylene ether glycol, 2 to 8 parts of citric acid, 6 to 12 parts of modified aluminum hydroxide and 1 to 3 parts of glycine, wherein the modified aluminum hydroxide is aluminum hydroxide modified by bis (dioctyloxy pyrophosphate) ethanediolato titanate and sodium lauroyl methyl aminopropionate. The cement mineralizer disclosed by the invention does not contain sulfur and chromium, is small in environmental pollution, has relatively excellent alkaline absorption capacity and stability, and can improve the fluidity and durability of cement and promote the hydration reaction of the cement, so that the early strength of concrete is improved.

The invention relates to the technical field of concrete, and particularly discloses colored pervious concrete and a preparation process thereof. Nanometer hydrated calcium silicate is added into a concrete formula, porous basalt aggregate is selected as coarse aggregate, and an internal curing agent is added. Through cooperation of the components, the strength of the colored pervious concrete is improved, meanwhile, a good pervious effect can be achieved, and the actual requirements of urban construction can be fully met.

The application discloses a low-shrinkage high-airtightness concrete special cementing material and a preparation method thereof. The special cementing material comprises 48-63wt% low-heat Portland cement clinker, 6-14wt% sulphoaluminate cement clinker, 3-5wt% light-burned magnesia, 7-10wt% sub-micron silica fume, 9-18wt% fly ash, 6-12wt% glass powder, 2-3wt% gypsum, 0.03wt% diethanol mono-isopropanol amine and 0.1wt% pre-dispersed carbon nanotubes. The special cementing material has reasonable particle size distribution, and the components produce interactive superposition effects, complement each other and promote each other, so that the cementing material after hydration is continuously compacted, and the airtight concrete prepared by the special cementing material can maintain excellent airtight performance and volume stability at each stage.

The invention relates to the technical field of building materials, and discloses a preparation method of an ardealite-based water-stable material which comprises the following components in parts by weight: 40-60 parts of ardealite; 15 to 25 parts of cement; 5 to 10 parts of lime; 10 to 20 parts of fly ash; 5 to 10 parts of silica fume; 10 to 20 parts of superfine slag powder; 3 to 7 parts of bentonite; 0.5 to 1.5 parts of plant fiber; the preparation method comprises the following steps: S1, primary mixing of dry materials: putting the ardealite, the cement, the lime, the fly ash, the silica fume, the superfine slag powder and the bentonite into a stirrer in proportion, and carrying out dry stirring for 5-10 minutes; s2, adding plant fibers: after the dry materials are uniformly mixed, adding the treated plant fibers, and continuously stirring for 3-5 minutes. By adding the plant fibers and the bentonite, the crack resistance of the material is remarkably improved, cracks caused by dry shrinkage or temperature change can be effectively prevented, meanwhile, the water penetration resistance is enhanced, and the material is suitable for a humid environment and underground engineering.

The invention discloses a recycled aggregate synergistically enhanced by a two-step mineralization method and a grain shape optimization method and a preparation method thereof, and relates to the technical field of recycled aggregates, the preparation method comprises the following steps: crushing and screening waste concrete to obtain recycled aggregate particles; soaking the recycled aggregate particles in a mixed solution of a nucleating agent and an organic substrate solution, and then transferring into a reaction kettle; uniformly spraying the bacillus pasteurii liquid on the recycled aggregate particles at one time, then maintaining for 5 hours, stirring in the maintaining process, introducing carbon dioxide gas into the reaction kettle, adjusting the temperature and the humidity, maintaining the set environmental conditions, and mineralizing and enhancing the recycled aggregate particles; and the mineralized and enhanced recycled aggregate particles and cement powder are poured into a disc granulator for particle shape optimization, and finally the synergistically enhanced recycled aggregate is obtained and has higher physical properties and self-strength.

The invention discloses an oxidation synergistic curing material for treating high-organic-matter muck and a curing method, and belongs to the field of waste recycling and regeneration treatment. The oxidation synergistic curing material comprises a solid waste-based curing agent, an activating agent and an oxidizing agent, wherein the mass ratio of the activating agent to the oxidizing agent is 1: (4-6), and the mass ratio of the oxidizing agent to the curing agent is 1: (4-12); the solid waste-based curing agent comprises the following components in percentage by mass: 30-40% of steel slag powder, 35-45% of slag, 15-20% of fly ash and 10-20% of red mud. The activating agent comprises carbide slag and ferrous sulfate heptahydrate in a mass ratio of (4-6): 1.5; the oxidizing agent comprises sodium persulfate and sodium percarbonate in a mass ratio of (16-24): 6. The problems of high organic matter content, poor engineering performance and the like of the high organic matter residue soil are solved, the mechanical property of the cured residue soil is improved, the organic matter content can be reduced to 5% or below, and the standard requirements of road subbase materials can be met.

This invention discloses a method for preparing an in-situ reinforced single-atom nanoenzyme bactericidal composite material for concrete. The method includes using sodium ferric ethylenediaminetetraacetate (EDTA) as a core precursor, and encapsulating calcium peroxide on its surface through an in-situ reaction to form a composite precursor of calcium peroxide encapsulating EDTA; directional hydrolysis of tetraethyl orthosilicate (TEOS) to form a thin layer of silica on the surface of the composite precursor; subsequent calcination under an inert gas to obtain a three-layer core-shell composite material of single-atom iron nanoenzyme / porous calcium peroxide / porous silica; and finally, grafting with aminosilane to obtain a three-layer core-shell composite material of single-atom iron nanoenzyme / porous calcium peroxide / porous silica with surface-grafted aminosilane. The composite material prepared by this method can achieve continuous and efficient bactericidal action in concrete while increasing nucleation sites, promoting hydration, and effectively improving the early strength and durability of concrete.

The invention discloses a rapid road repairing material and a preparation method thereof. The rapid road repairing material comprises a raw material component A, a raw material component B, a raw material component C and water, the component A comprises magnesium oxide, cement and fine aggregate; the component B comprises phosphate, microbeads, a thickening time control agent and fine aggregate; and the component C is broken stone. The setting time of the system can be adjusted and controlled within 10-40 min through the setting time control agent; by doping cement, superfine powder microbeads and reasonable graded aggregate, the compactness of the system is improved, and the water resistance of the system is improved; by utilizing the acid-base reaction principle of magnesium oxide and phosphate, the early strength and bonding strength of the system are high, the 1h compressive strength is greater than 25MPa, the bonding strength is greater than 3.5 MPa, early traffic opening is facilitated, and the system is particularly suitable for construction under the negative temperature condition.

The invention discloses a concrete material based on coal gangue and a preparation method thereof. The concrete material based on the coal gangue comprises the following raw materials in parts by weight: 30-50 parts of cement, 200-250 parts of the coal gangue, 40-60 parts of iron tailing powder, 10-15 parts of limestone powder, 20-40 parts of fly ash, 20-40 parts of iron alloy slag, 5-10 parts of bauxite, 5-8 parts of superfine silicon dioxide, 4-6 parts of sodium hydroxide, 2-4 parts of sodium thiosulfate, 2-4 parts of a water reducing agent and 60-80 parts of water. According to the mixed concrete material, through selection of the raw material components, recycling of waste resources such as the coal gangue, the iron tailings and the iron alloy slag is achieved, in addition, through interaction among the raw materials, the interface performance among the coal gangue, the iron tailings, the iron alloy slag and the cement can be improved, interaction among the raw materials is improved, and the utilization rate of the raw materials is improved. The hydration reaction is promoted, and the cross-linking reaction among the raw materials is realized, so that the overall mechanical property of the prepared mixed concrete is improved.

The invention provides a microcapsule slow-release grinding aid as well as a preparation method and application thereof, the preparation method comprises the following steps: S1, preparation of a modified grinding aid: stirring and mixing organic alcohol amine and toluene, slowly dropwise adding concentrated sulfuric acid, reacting to obtain a crude product, washing, and drying in vacuum to obtain the modified grinding aid; s2, uniformly mixing an initiator and the modified grinding aid obtained in the step S1 to obtain core liquid for later use; the preparation method comprises the following steps: uniformly mixing an amide monomer and a crosslinking monomer in advance to obtain a polymerization reaction solution for later use; s3, taking water as a reaction base solution, adding an emulsifier, heating, adding the core solution and the polymerization reaction solution, stirring, carrying out polymerization reaction, cooling to room temperature, filtering to obtain a crude product, washing, and drying to obtain the microcapsule slow-release grinding aid. The microcapsule slow-release grinding aid can meet the requirement of a grinding production process on the grinding aid, can effectively improve the strength of mortar and concrete at each age without large-dosage addition, and has positive significance in promoting the sustainable development of the building industry.

The invention belongs to the technical field of building materials, and particularly relates to a preparation method of a filter-press mud cake as a flow-state filling material. The method comprises the following steps: adding basalt fibers into gamma-aminopropyltriethoxysilane to obtain basalt fibers subjected to surface treatment, and stirring and mixing the basalt fibers subjected to surface treatment with a modified siliceous material to obtain a fiber reinforced material; stirring 70-80 parts of the filter pressing mud cake, 3-6 parts of a curing agent and 3-5 parts of a fiber reinforced material, then adding 2-4 parts of an early strength agent, 8-12 parts of recycled fine aggregate and 0.1-0.2 part of an air entraining agent, and stirring to obtain the flow state filling material. The material obtained in the invention has good mechanical properties, durability and contractibility.

The utility model discloses a kind of wear-resistant castable preparation devices, including base, the upper of base central position is provided with preparation tank, the upper end of preparation tank is provided with jar cover, the lower end of jar cover is provided with rotating rod, rotating rod is rotatably connected with jar cover, rotating rod outside is fixedly provided with mounting bracket in upper and lower sides, the inside of mounting bracket is provided with several mounting cavities, mounting cavity is equidistant distribution, and mounting cavity is open structure, the inside of mounting cavity is provided with agitator plate, agitator plate is slidably matched with mounting cavity, agitator plate is equidistant distribution, the inside of mounting bracket is provided with screw hole near mounting cavity central position, screw hole is through structure, the upper and lower sides of agitator plate inside are provided with through-hole, through-hole and screw hole position correspond, and this structure solves the problem that the mixing effect of raw materials is not good enough, and raw materials weighing is not convenient enough.

This invention discloses a phosphorus slag-based cementitious material, its preparation method, and its application, specifically relating to the field of cementitious materials technology. The cementitious material, by weight, comprises the following components: 60-90 parts phosphorus slag powder; 5-25 parts fly ash; 5-15 parts activator; 0.25-1.5 parts early-strength agent; and 0.2-0.5 parts water-reducing agent; wherein the specific surface area of ​​the phosphorus slag powder is 400-550 m². 2 / kg, particle size (D) 90 The particle size is 20-40 μm; the early-strength agent is selected from at least one of iron salts and aluminum salts. This invention uses phosphorus slag micro-powder with a specific specific surface area as the main substrate, with a high dosage, combined with fly ash, activator, early-strength agent, and water-reducing agent to obtain phosphorus slag-based cementitious materials. By optimizing the physical properties of the phosphorus slag micro-powder and constructing a suitable composite activator-early-strength system, the 28-day compressive strength of the cementitious material reaches over 61.0 MPa, achieving a balance between "high phosphorus slag content" and "high strength".