57results about How to "Improve greenness" patented technology

The invention relates to the technical field of building materials, in particular to high-strength recycled concrete and a preparation method and application thereof, and the high-strength recycled concrete is prepared from the following raw materials in parts by weight: 290 to 443 parts of cement; 20 to 70 parts of fly ash; 20 to 70 parts of slag; 20 to 70 parts of silica fume; 20 to 70 parts of metakaolin; 650 to 750 parts of fine aggregate; 550 to 600 parts of natural coarse aggregate; 450 to 510 parts of recycled coarse aggregate; 4.0 to 7.0 parts of a water reducing agent; and 140 to 160 parts of water. The high-strength recycled concrete is designed and prepared on the basis of the service environment and load-bearing requirements of a recycled concrete structure, and mineral admixtures comprise coal ash, slag, silica fume and metakaolin. According to the preparation method, a pre-wetting-double slurry wrapping method is adopted, the recycled aggregate is subjected to pre-wetting, slurry wrapping and repeated stirring treatment, the internal microstructure of the concrete is enhanced, and the mechanical property of the recycled concrete and the durability of the recycled concrete in a composite salt erosion environment are improved.

The invention provides a gradient pore HZSM-5 molecular sieve and a preparation method thereof. The preparation method takes natural clay minerals as raw materials to synthesize a microporous NaZSM-5molecular sieve without application of template agent, performs alkali treatment on the microporous NaZSM-5 molecular sieve through crystallized mother liquid to prepare a gradient pore NaZSM-5 molecular sieve, and performs acid exchange on the gradient pore NaZSM-5 molecular sieve through acid liquor to obtain the gradient pore HZSM-5 molecular sieve. The invention also provides the gradient poreHZSM-5 molecular sieve prepared through the method. The preparation method of the gradient pore HZSM-5 molecular sieve does not require any template agent as well as additional alkali source during alkali treatment and has no discharge of acid liquor or alkali liquor during the whole process, thereby greatly reducing the production cost of molecular sieves and improving the environmental properties of the preparation process; the prepared gradient pore HZSM-5 molecular sieve is rich in micro-mesoporous composite gradient pore structures.

The invention discloses a carbohydrate modified lithium conductive polymer/inorganic hybrid electrolyte and application thereof. The electrolyte comprises a carbohydrate modified lithium conductive polymer and a lithium salt, wherein the carbohydrate modified lithium conductive polymer is obtained by crosslinking reaction or direct mixing of a carbohydrate compound and a lithium conductive polymer and/or a lithium conductive micromolecule compound. The electrolyte is compatible with high conductivity of an inorganic material and flexibility of a polymer material, has high lithium ion conductivity and good processability, and is suitably used for preparing a lithium ion battery, a lithium-sulfur or lithium-air battery and the like with large capacity and good cycle property; and the electrolyte is low in cost and is simple to prepare, and the selection range and the application field of a lithium battery material are expanded.

The invention discloses class C40 slag-doped recycled aggregate self-compacting concrete and a production method thereof; the Class C40 slag-doped recycled aggregate self-compacting concrete comprises 1 part of water, 3.089 parts of natural coarse aggregate, 1.322 parts of recycled coarse aggregate, 3.822 parts of fine aggregate, 1.941-2.183 parts of cement, 0.2426-0.4851 part of slag, 0.609 part of fly ash, 0.064 part of added water, and 0.00495-0.0124 part of an admixture. The class C40 slag-doped recycled aggregate self-compacting concrete has good mobility, filling performance and segregation resistance, both gradual loss and strength of the concrete meet the related requirements of buildings, the production method is simple, the production cost of self-compacting concrete under same ratio and strength is lowered, the slag and building waste treatment problem is solved, the burden of resource exhaustion is relieved, and the concrete and the production method thereof are green and suitable for industrial production.

The invention discloses a method for preparing a building material product by a clinker-free steel slag gel material and multiple CO2 absorbing techniques. The method comprises the following steps of using ground steel slag as the clinker-free gel material, and mixing with a proper amount of water; performing two steps of carbonizing mixing and conventional mixing, and compressing and forming a mixture; performing carbonizing curing and standard curing, so as to obtain a green building material product. The method has the advantages that by adopting the techniques, the steel slag is completely used as the gel material; compared with the single carbonizing, the content of solid carbon in a curing sample by the multiple carbonizing is increased by 18 to 20 percent; by performing multiple carbonizing and standard curing, the strength of the sample is greatly improved.

The invention relates to a method for increasing green degree of ball-flower bud branches of loose-flower cauliflower. The method increases green degree of ball-flower bud branches through changing cultivation patterns and methods. The method comprises measures of planting density changing, water management, fertilization management, leaf binding and flower protection. The planting density changing is realized by increasing row and line spacings of plants, and row spacing is 50cm to 60 cm, line spacing is 60 cm to 70 cm. A hole V-shaped mode is used, and the plants are planted in a staggered manner. Through increasing planting density, and water management, fertilization management, and leaf binding and flower protection and other comprehensive measures, an objective of increasing the green degree of ball-flower bud branches of loose-flower cauliflower is realized, and various produced cauliflowers are high in quality and good in commodity value.

The invention discloses a foamed wall material and a preparation method thereof. In the prior art, the method for recycling light construction waste does not exist. A purpose of the invention is to solve the disadvantage in the prior art. The invention provides a foamed wall material, which comprises the following raw materials by weight: 40-60 parts of light construction waste, 15-30 parts of cement, 5-20 parts of an admixture, 0.5-5 parts of a composite foaming agent, 0.2-0.4 part of fiber, 0.2-0.7 part of a water reducing agent, 0.08-0.15 part of a foam stabilizer and 45-65 parts of water.According to the invention, the foamed wall material is prepared by using the light construction waste as the raw material, the characteristics of the light construction waste are fully considered, and the light construction waste does not need to be further grinded after being grinded, so that the procedures and the energy are saved, the high-temperature and high-pressure maintenance with the boiler is not required, the energy consumption is reduced, and the utilization rate of the construction waste is increased.

The invention discloses a lawn grass fertilizer used in warm seasons wherein the effective constituents in the fertilizer include (by weight ratio), nitrogen 48.7-40.3, phosphorus pentoxide 20.5-15.1, potassium oxide 34.6-28.4, magnesium 5.2-2.8, zinc 2.0-1.0, boron 0.7-0.4, molybdenum 0.2-0.1. Compared with the prior art, the beneficial effects of the invention include full nutrient content, reasonable nourishing proportion, and higher utilization efficiency of fertilizer.

The invention provides a maintenance method for a garden landscape lawn. The maintenance method comprises the following steps: (1) laying plant ash onto the surface layer of soil when a lawn is established, then using salicylic acid to prepare a salicylic acid aqueous solution with a concentration of 0.5 to 1 mg/L, spraying the salicylic acid aqueous solution onto the plant ash, and sowing grass seeds in 5 to 7 days after the salicylic acid aqueous solution is sprayed; (2) uniformly mixing salicylic acid, citric acid, polyacrylamide, ferrous sulfate and magnesium sulfate with water so as to obtain a mixed solution which is used right after prepared, and respectively spraying the mixed solution once to the lawn before the lawn turns green in spring and before the lawn is withered and turnsyellow in autumn; and (3) uniformly mixing uniconazole, naphthaleneacetic acid, abscisic acid, ferrous sulfate and potassium dihydrogen phosphate with water so as to obtain a mixed solution which is used right after prepared, spraying the mixed solution once to a vigorously-growing cold-season lawn in spring, and spraying the mixed solution once to a vigorously-growing warm-season lawn in midsummer. The maintenance method provided by the invention has the advantages of preventing weeds from surviving, significantly increasing the content of chlorophyll and greatly reducing the number of timesof lawn trimming.

The invention discloses a folding guardrail convenient for rapid highway construction. The folding guardrail convenient for rapid highway construction comprises a bottom support; the bottom support isof a cuboid-shaped frame body structure; self-locking pulleys are mounted on the lower surface of the bottom support; a first guardrail is mounted on the upper surface of the bottom support; a jack is arranged on the upside in the first guardrail; an electric control box body is arranged on the surface of the external side of the first guardrail; a transverse connecting rod is connected above theelectric control box body; a first hinging pin is arranged at the upper end of the jack; a rubber ball can enable the wear of a folding rotating rod to be reduced in the guardrail folding process sothat the floor space of the guardrail is reduced, the space utilization rate is increased and the service life of a device can be prolonged; the rapid construction of highways is made convenient, a compression spring can keep the stable connection and mounting of a vertical supporting rod in a connecting device, vibration generated by an outside force effect is prevented, and meanwhile, a pressingeffect can also be realized during folding.

The invention discloses premixed pump concrete prepared from coal oil residues and a preparation method of the premixed pump concrete, and belongs to the technical field of solid waste resource comprehensive utilization and building materials. The premixed pumped concrete is prepared from the following raw materials in parts by weight: 200-260 parts of coal oil residues, 110-140 parts of cement, 70-100 parts of gypsum, 700-750 parts of fine aggregate, 1100-1200 parts of coarse aggregate, 4-6 parts of a water reducing agent and 125-150 parts of water, and the cement, the coal oil residues and the gypsum in parts by weight are mixed and ground to prepare a cementing material; and uniformly stirring and mixing the cementing material with the fine aggregate, the coarse aggregate, the water reducing agent and the water to obtain the premixed pumped concrete prepared from the coal oil residues. According to the invention, two industrial solid wastes, namely the coal oil residue and the desulfurized gypsum, are co-processed, so that waste is turned into wealth, and the prepared premixed pump concrete is high in early hydration rate, relatively high in early strength and excellent in performance.

The invention belongs to the technical field of synthesis of an aromatic nitrile compound, in particular relates to a method for synthesizing aromatic nitrile with arylboronic acid. In the presence of catalysts, alkali and iodine, the aromatic nitrile is obtained through a reaction of the arylboronic acid and a cyanide reagent in organic solvent. The cyanide reagent is K4 [Fe (CN) 6] or K4 [Fe (CN) 6]*3H2O which is small in toxicity and cheaper. The method for synthesizing the aromatic nitrile compound is low in production cost and free of highly toxic materials.

The invention relates to the technical field of white tea planting, in particular to a planting management method for improving the selenium content of white tea. The planting management method includes an arable land selenium increasing method and a water fertilizer selenium increasing method and/or gas selenium increasing method. According to the method, pH (potential of hydrogen) of planting soil is adjusted to range from 7.1 to 7.5 before the white tea is planted, selenium elements in the soil is greatly absorbed by white tea trees in weakly alkaline environments, the content of selenium elements in the tea is effectively improved, barium chloride is added into fertilizers, so that sulfate in the soil rapidly precipitate under the combined action of barium ions, storage amount of sulfate radicals in the soil or the tea trees is decreased, so that the selenium elements are absorbed by the tea trees, the content of carbon dioxide in tea garden air is increased in continuous several days of five days after selenium-rich farm manure is applied once, so that photosynthesis of the tea trees is improved, and selenate and selenite of the farm manure are efficiently absorbed by the teatrees.

The invention requests to protect a green circulation method for producing ethyl maltol. The method is characterized in that the method comprises the following steps: adding water into the basic magnesium chloride-containing solid waste and uniformly stirring; then distilling under reduced pressure to remove the organic solvent, adding acid, then further decolorizing through a tubular filter provided with activated carbon, then dropwise adding a sodium hydroxide solution with the molar concentration of 2.5-4mol/L; and after the reaction is completed, centrifuging, drying, crushing, grading, inspecting and packaging. The method is short in technological process and mild in production condition, waste in maltol production can be fully utilized, high economic returns can be obtained, finally,the production cost of maltol is reduced, and pollution is reduced. The utilization efficiency of resources is effectively improved, and the greenness and sustainability of a maltol production process are improved.

The invention discloses a heat-insulation foamed cement board based on foam concrete wastes. The heat-insulation foamed cement board comprises, by weight, 70-80 parts of ordinary Portland cement, 20-30 parts of fly ash, 0.5-1 part of a foaming agent, 6-24 parts of foam concrete, 55-60 parts of water and 1-1.5 parts of a water reducer. The foam concrete wastes are crushed, sieved and classified toform artificial light aggregates with different particle sizes, and then are added into a foam concrete body to produce the self-heat insulation board. The solid wastes are adopted, so the heat-insulation foamed cement board has low cost; the wastes are changed into effective resources and recycled, so the heat-insulation foamed cement board has the advantages of energy-saving and environmentally-friendly production process, good economic and environmental benefits, increase of the types of energy-saving and heat-insulation wall materials, and improvement of the greenness of an inorganic lightweight material. The heat-insulation foamed cement board produced in the invention has a heat insulation coefficient of 0.06-0.10 w/m.k, a compressive strength of 1 Mpa or more, a bulk density of 490-640 kg/m<3> and a volume water absorption rate of 15-20%.

The invention provides ceramic tile pasting mortar and a preparation method thereof. Waste tires are used for preparing machine-made sand, the existence of black garbage is effectively reduced, and meanwhile, the modified waste tire particles have very high ductility and excellent energy absorption performance, and can effectively prevent the dry shrinkage phenomenon of the mortar in the solidification process. A binding agent is added, the binding force of the mortar to the ceramic tile is increased, meanwhile, the binding agent is alkaline, the interface on the back face of the ceramic tile can be slightly reacted, the roughness of the interface is increased, and the binding agent can adhere and cure the mortar interface more easily. A modified retarder is added, so that the coagulation speed of the mortar is slowed down, the mortar does not react with groups outside modified waste tire particles and a binder, meanwhile, the modified retarder has the effect of a plastic stabilizer, the anti-sagging property of the mortar is improved, the micro-reaction inside the mortar is stabilized, and the bonding capacity of the mortar and a matrix interface is improved.

The invention discloses a multi-service combinatorial investment optimization method for 5G and power grid basic resource sharing. The method comprises the following steps: S1, carrying out the permutation and combination of a plurality of pre-investment services of an investor, and forming a plurality of multi-service combinatorial investment schemes; S2, constructing a multi-service portfolio investment scheme benefit measurement and calculation model; and S3, respectively substituting each multi-service portfolio investment scheme in the S1 into the benefit measurement and calculation model constructed in the S2 for solving, taking the scheme with the highest comprehensive benefit as the optimal multi-service portfolio investment scheme, and adjusting investment services of investors according to the optimal multi-service portfolio investment scheme to optimize a multi-service combined investment mode of 5G base station and power grid basic resource sharing. According to the invention, economic benefits, environmental benefits and social benefits can be considered when a power grid company invests a plurality of 5G base stations and power grid basic resource sharing services; the reliability of power grid power supply is ensured and the greenness of electric energy supply is improved; and the market competitiveness of companies is improved, and sustainable development of power grid enterprises is promoted.

The invention discloses a cracking-resisting compacting agent for concrete. The cracking-resisting compacting agent comprises siliceous dust, triethanolamine and an air entraining agent, wherein the doping ratio of the siliceous dust to the triethanolamine to the air entraining agent is 1.5 percent: (0.015-0.045 percent): (0.015-0.030 percent). The cracking-resisting compacting agent is well compatible with other additives (such as a water reducing agent); good collapse protecting effect on freshly mixed concrete can be achieved by adding the cracking-resisting compacting agent; the using of the cracking-resisting compacting agent does not influence the strength of the concrete but increases the early strength of the concrete; and the content of internally-doped cracking-resisting compacting agent is low, so that the increase of engineering cost is small. The cracking-resisting compacting agent does not prolong the condensing time of the concrete; and the concrete does not newly produce calcium-containing matters in the early period of hydration when the cracking-resisting compacting agent is doped into the concrete, so that the low carbon development requirement of the concrete is met. The defects in the aspects of durability, energy consumption and environmental friendliness of C3S, C3A and the like are reduced, and the green degree of gelled materials is improved.