10results about How to "Enhanced skeleton structure" patented technology

This invention provides a road base material based on sludge and construction waste, its preparation method, and its application. The road base material includes a base component and an admixture component. The base component includes: 45-55% recycled coarse aggregate, 20-35% recycled fine aggregate, 15-25% sludge, 4-6% cement, and 1-4% water. Both the recycled coarse and fine aggregates are derived from construction waste. The admixture component includes quicklime, sodium hydroxide, and zinc ricinoleate. The mass percentage of quicklime to sludge is 4-8%, the mass percentage of sodium hydroxide to sludge is 0.1-0.2%, and the mass percentage of zinc ricinoleate to sludge is 0.2-0.5%. This invention promotes the high-value utilization of urban solid waste such as sludge and construction waste, and yields a higher-performance road base material based on sludge and construction waste.

The invention relates to the technical field of special containers, in particular to a multi-door-window heat preservation special container suitable for cold environments, which comprises a main box body, a water tank and use equipment, the water tank is fixedly mounted in the main box body, a maintenance area is arranged in the main box body, and the maintenance area is close to the water tank; a mounting area is also arranged in the main box body, is close to the maintenance area and is far away from the water tank; using equipment is fully distributed on the mounting area; the size of the main box body is the standard size of the container; the main box body is made of a plurality of layers of wallboards, a rigid main framework and a heat preservation door; the heat preservation doors are made of multiple layers of heat preservation plates and comprise the first heat preservation door, the second heat preservation door and the third heat preservation door. The opening direction of the first heat preservation door faces the water tank, the opening direction of the second heat preservation door faces the maintenance area, and the direction of the third heat preservation door faces the installation area. A multi-door-window structure can be adopted in the cold environment, and the heat preservation performance in the container is also guaranteed.

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 invention provides a dry-method tamping pier construction method for high-humidity soil low-carbon reinforcement, and belongs to the technical field of foundation low-carbon rapid reinforcement. The dry-method tamping pier construction method comprises the steps that holes are dug in high-water-content plastic soil foundation reinforcement, then, dug high-humidity soil is evenly mixed with tunnel hole residues and a low-carbon curing agent according to a certain mixing proportion on site through a movable powerful stirrer, and the high-moisture-content plastic soil foundation is formed; and the mixture is rammed and filled back to the pier hole by a layered dry method, and finally, the rammed pier is formed through maintenance. In the low-carbon curing agent, solid waste materials such as the carbide slag, the alunite powder and the mineral powder are used for replacing part of cement, generation of harmful substances such as calcium hydroxide is reduced through mutual reaction among the materials, the mode of improving excavated soil is used for replacing borrowing earthwork backfilling, and the problem of shortage of soil and stone resources is solved; meanwhile, traditional wet stirring is replaced with a dry construction mode, the pier body strength and construction efficiency are improved, the overall bearing capacity and durability of a foundation are guaranteed, and the method has the advantages of being wide in application range, easy and convenient to construct, high in early strength, good in durability and the like.

The invention provides a preparation method of high-strength and large-size silicon dioxide aerogel, and relates to the field of aerogel material preparation, and the preparation method comprises the following steps: S1, wet gel preparation, S2, aging, S3, surface modification, and S4, drying. Wherein in the step S2, two times of aging, namely aging by using an aging solution and aging by using absolute ethyl alcohol, are performed in sequence, and in the step S3, modification is performed by using a modification solution of an ethanol solution of a modifier with the volume fraction of 8-12%. The method can effectively solve the problems that silicon dioxide aerogel is low in strength, not easy to form, non-uniform in microstructure, easy to absorb moisture and the like, so that the aerogel structure which is stable in microstructure, good in uniformity, low in heat conductivity coefficient and excellent in heat insulation and heat preservation performance is obtained.

This invention belongs to the field of electrocatalyst technology, and specifically relates to a graphene-based sheet-like porous catalyst, its preparation method, and its application. The preparation method includes: separately preparing an aqueous dispersion of graphene oxide and an aqueous dispersion of nano-melamine-formaldehyde resin, mixing them, and stirring to obtain a mixed dispersion; mixing the mixed dispersion with a hydroxyl-containing compound, adjusting the pH to weakly alkaline, stirring, concentrating, and drying to obtain a dried product; and subjecting the dried product to high-temperature pyrolysis. This method can prepare a sheet-like nitrogen-doped carbon-based non-noble metal electrocatalyst with stable mechanical properties, abundant pore structure, and high nitrogen content. It exhibits excellent electrochemical catalytic performance, has a simple preparation method, mild reaction conditions, and can achieve uniform nitrogen doping.

The invention discloses biomass-derived carbon aerogel with a skeleton genetic structure as well as a preparation method and application of the biomass-derived carbon aerogel. The preparation method of the biomass-derived carbon aerogel with the skeleton genetic structure comprises the following steps: a) hydrogel treatment: carrying out hydrothermal treatment on porous biomass to obtain biomass hydrogel; b) carrying out aerogel treatment: freezing the biomass hydrogel into biomass frozen gel, and sequentially carrying out solvent exchange treatment and drying treatment on the biomass frozen gel to obtain biomass aerogel; c) performing carbon aerogel gelatinization: performing carbonization treatment on the biomass aerogel to obtain the biomass carbon aerogel, and the prepared carbon aerogel not only can reserve the original excellent skeleton structure of biomass, but also is mild in preparation condition, simple in preparation process and low in preparation cost.

The invention relates to the technical field of building mortar, and particularly discloses anti-seepage and anti-crack cement-based mortar, which is prepared from the following raw materials in parts by mass: 55 to 80 parts of cement, 35 to 50 parts of fly ash, 10 to 20 parts of desulfurized gypsum, 10 to 20 parts of glass beads, 14 to 20 parts of expanded perlite, 2 to 5 parts of acrylate emulsion, 2 to 6 parts of mortar reinforcing agent, 1 to 3 parts of polypropylene fiber, 1.5 to 3.2 parts of acrylic acid, 0.4 to 1 part of air entraining agent, 0.1 to 1 part of calcium formate, 1 to 2 parts of water reducing agent and 120 to 180 parts of water. The cement-based mortar is reasonable in design and convenient to operate, has the characteristics of high early strength and stable later strength development, is high in thermal insulation strength and excellent in anti-seepage and anti-cracking performance, improves the flexibility of the mortar, remarkably improves the fluidity of the mortar, is convenient to construct, and is suitable for large-scale popularization and application.

The invention relates to the technical field of oil and gas field development, in particular to an underground in-situ cured foam flow regulating system and a preparation method and application thereof.The foam flow regulating system is characterized in that a foaming agent, a foam stabilizer, a curing material and formation water form a foam system solution, and the curing material is composed of a curing main agent and a curing auxiliary agent; in the foam system solution, the mass fraction of the foaming agent is 0.1 wt%-1.2 wt%, the mass fraction of the foam stabilizer is 5 wt%-20 wt%, the mass fraction of the curing main agent is 10 wt%-40 wt%, the mass fraction of the curing auxiliary agent is 5 wt%-20 wt%, and the balance is formation water. According to the foam flow regulating system provided by the invention, the curing material is added into the foam system, and the high-strength porous plugging material is formed after the foam system is injected into the stratum, so that the plugging of cracks and holes is realized, and a porous structure can also be used for providing shear regeneration conditions for the subsequent foam migration process.

The invention is suitable for the field of battery cell manufacturing, and provides a battery cell formation method and device, electronic equipment and a computer program product.The method comprises the steps that a liquid-injected battery cell is charged with first set current till the charging voltage reaches first cut-off voltage; the first set current is greater than or equal to a preset current; at a first set temperature, standing the liquid-injected battery cell for a first set time length; the first set temperature is greater than or equal to a preset temperature; carrying out complete discharge treatment on the battery cell subjected to liquid injection; adopting a second set current to charge the battery cell filled with the liquid until the charging voltage reaches the first cut-off voltage to obtain a target battery cell meeting the set requirement; the second set current is smaller than the preset current; the set requirements include that the skeleton structure of the SEI film of the target battery cell meets the set structural characteristics, and / or the compactness of the SEI film meets a threshold value. According to the scheme, the high-temperature performance of the battery cell can be improved.