36results about How to "Hydraulically hard" patented technology

The invention discloses a concrete material which totally adopts industry solids waste to replace cement preparation, comprising a gelled material and a skeletal material. The gelled material is composed of the components with the following weight portions of 36 to 75 portions of fluidized bed burning coal solid sulfur clinker, 9 to 25 portions of acetylene sludge and 6 to 15 portions of phosphogypsum; because the cementing materials such as cement, lime, asphalt, and the like, are not needed at all, material costs are remarkably reduced, great amount of industry solids waste is used to produce building materials, especially the fluidized bed burning coal solid sulfur clinker is used to serve as raw material, environment pollution is avoided, and land resources are saved.

The invention provides novel non-sintered biological stuffing rapid in biofilm formation and a preparation method thereof, relating to biological stuffing and preparation methods thereof and solving the technical problems that the existing biological stuffing has long biofilm formation time and poor effluent quality in water treatment processes and preparation processes are high in energy consumption and pollute the environment. The biological stuffing is prepared from sepiolite, medical stone, cement, polyvinyl alcohol, sodium alginate, hydrogen peroxide, ferric chloride, manganese sulfate, cobalt chloride and agar. The method comprises the following steps: I. heating and dissolving polyvinyl alcohol and sodium alginate, adding hydrogen peroxide after cooling, and mixing the components uniformly, thus obtaining a liquid mixture; II. mixing the liquid mixture with other solid components, granulating the mixture, putting the granules at normal temperature, drying and sieving the granules, curing the granules at high pressure and low temperature, steam-curing the granules at constant temperature, and cooling the granules at normal temperature, thus obtaining the biological stuffing. Compared with the common ceramsite, the biological stuffing has short biofilm formation time, good effluent quality and coarse surface and is beneficial for microorganism growth. The biological stuffing is applied to the fields of environmental applied materials and sewage treatment.

The invention relates to dry-mixed composite light aggregate concrete based on inorganically modified polyurethane particles and a preparation method of the dry-mixed composite light aggregate concrete. The concrete is prepared from raw materials in parts by weight as follows: 38-135 parts of the inorganically modified polyurethane particles, 162-485 parts of cement, 30-127 parts of fly ash, 23-50parts of mineral powder, 3-50 parts of silica fume, 37-740 parts of dry sand, 4.6-19.7 parts of an admixture and 105-380 parts of water. The preparation method comprises the following steps: 1, wastepolyurethane particles are subjected to grain size grading; 2, the graded waste polyurethane particles are inorganically modified; 3, the cement, the fly ash, the silica fume, the mineral powder andthe admixture are added to a dry powder stirrer for uniform stirring and mixing, and dry-mixed composite powder is obtained; 4, the dry-mixed composite powder is mixed with the inorganically modifiedpolyurethane particles, water is added for stirring, and the dry-mixed composite light aggregate concrete is prepared.

The invention discloses a furnace slag water-stable base material and a preparation method thereof. The furnace slag water-stable base material is formed by mixing a dry material and water. The dry material comprises the following components in percentage by weight: 3-5% of cement, 20-35% of furnace slag and 65-75% of macadam. The water accounts for 3.5-5.5 wt% of the dry material. The furnace slag is used instead of fine aggregate, thereby reducing the probability of cracking caused by temperature shrinkage when the cement content and water-stable base are reduced. The solid waste is used as the fine aggregate in the water-stable base material, thereby changing wastes into valuable substances, saving the waste piling site and saving the mineral resources of macadam production. The furnace slag material is pretreated, so that the heavy metal content and leaching toxicity are lower than the standard values. The furnace slag water-stable base material is applicable to the water-stable base with higher economic value, and lowers the engineering cost.

The invention discloses a method for producing high-salinity maritime work cement through mineral waste residue waste materials. The high-salinity maritime work cement is prepared from, by weight, 30-40 parts of mineral waste residues, 40-50 parts of sulphate aluminum cement clinker, 0.03-0.05 part of composite activating agents, 2-4 parts of early strength agents, 0.3-0.5 part of water reducing agents, 0.005-0.007 part of air entraining agents and 0.3-0.5 part of retarder. The method for producing the high-salinity maritime work cement comprises the steps that the mineral waste residue waste materials, the sulphate aluminum clinker, the composite activating agents and the early strength agents are smashed, ground into powder and homogenized respectively and then dosed, mixed and homogenized according to proportions, then the water reducing agents, the air entraining agents and the retarder are added, mixed and homogenized, and the product is obtained. The high-salinity maritime work cement has the performance of common cement, further has the excellent characters of early-stage hardness resisting, long-term corrosion resistance, retardation progressive increasing and the like, and is especially suitable for ports, wharfs and other engineering which are corroded by corrosive media.

The invention relates to a dedusting and deep purification apparatus with high efficiency and low energy consumption for flue gas in a metallurgical slag treatment process. The apparatus comprises a tower for spraying, sprinkling and washing and a downstream type gas-liquid tower for deep purification, dehydration and demisting with foam suspension and pneumatic swirling flow; an outlet at the upper end of the tower for spraying, sprinkling and washing and an inlet at the upper end of the downstream type gas-liquid tower for deep purification, dehydration and demisting with foam suspension and pneumatic swirling flow are connected by a connection flue; a sidewall at the lower end of the tower for spraying, sprinkling and washing is provided with a flue gas inlet pipeline; a sidewall of the downstream type gas-liquid tower for deep purification, dehydration and demisting with foam suspension and pneumatic swirling flow is provided with a flue gas outlet pipeline; the tower for spraying, sprinkling and washing employs a wet type multilayer gas-liquid countercurrent contact mode, and the downstream type gas-liquid tower for deep purification, dehydration and demisting with foam suspension and pneumatic swirling flow employs a gas-liquid current contact mode. The dedusting and deep purification apparatus with high efficiency and low energy consumption for flue gas in the metallurgical slag treatment process is adapted to characteristics of high temperature, high moisture and high viscosity flue gas, and realizes ultra-low flue dust emission concentration in a low energy consumption condition, in order to satisfy more strict environmental protection emission requirements of pollution treatment.

The invention discloses a high-temperature calcination method of industrial byproduct gypsum, and belongs to the field of building materials. The method includes the following steps: 1. heating the industrial byproduct gypsum by flame; 2. heat preservation; 3. humidification reduction. The method has the advantages of optimizing the calcining process of the industrial byproduct gypsum to obtain the building gypsum with good strength and comprehensive performance, and overcoming the defects of the gypsum produced by the existing method.

The invention discloses a preparation method of a grass planting and sand fixing brick. The preparation method is characterized by adopting the following materials in parts by mass: 5 to 15 parts of calcined desulfurization gypsum, 5 to 15 parts of sulfur-fixing ash, 60 to 80 parts of desert sand, 2 to 5 parts of crop straw powder, 0.05 to 0.15 part of a surfactant, 2 to 5 parts of an organic matter, 0.05 to 0.5 part of a water retaining agent, 0.1 to 0.5 part of herbaceous plant seeds and water of which a water-solid ratio is 0.55 to 0.7. The invention also discloses the grass planting and sand fixing brick prepared by adopting the preparation method. The grass planting and sand fixing brick disclosed by the invention is low in cost and convenient in production, the mechanical property meets the requirement of slope protection of a desert highway; the grass planting and sand fixing brick has the advantages that good environment coordination is obtained, and a suitable grass seed growth environment is provided; meanwhile, regeneration and cyclic utilization can be realized, the pavement stability is good, sand slope pavement and grass planting are facilitated, and the like.

The invention discloses lime-metakaolin modified soil and application thereof, and relates to the technical field of soil architecture site restoration. The lime-metakaolin modified soil provided by the invention is prepared from the following components in percentage by mass: 8-12% of quicklime powder, 4-12% of metakaolin, and the balance of a soil material. The lime-metakaolin modified soil provided by the invention is a natural inorganic material, the good compatibility of traditional lime mortar is retained, the hydraulicity of hydraulic lime is achieved, after curing for 28 days, a compressive strength value of the lime-metakaolin modified soil can meet the compressive strength class requirements for natural hydraulic lime NHL5, the color change is not obvious, the cost is low, the economical efficiency and environmental protection are achieved, and the significant advantages are achieved in application of restoration and reinforcement of soil architecture sites.

The invention discloses composite modified high titanium slag micropowder used for concrete, and the composite modified high titanium slag micropowder is characterized by being prepared by mixing 50%-67% by weight of high titanium slag, 31%-50% by weight of circulating fluidized bed fire coal ash and 0%-8% by weight of metakaolin. The concrete is prepared by mixing the composite modified high titanium slag micropowder with cement, sand, stone, water and a water reducing agent by stirring, molding and curing. The composite modified high titanium slag micropowder can use a large amount of the industrial solid waste high titanium slag and the circulating fluidized bed fire coal ash; the concrete performance is better than that of single doped S75 grade granulated blast furnace slag powder concrete. By adopting the composite modified high titanium slag micropowder, industrial solid waste is extensively used, the preparation method is simple, cost is low, the composite modified high titanium slag micropowder is especially suitable for regions in which a large number of high titanium slag and circulating fluidized bed fire coal ash are simultaneously discharged, and has obvious economic benefits, broad market prospects and strong practicability.

The invention relates to the technical field of concrete, in particular to anti-freezing concrete and a preparation method thereof. The anti-freezing concrete is prepared from the following componentsin parts by weight: 99-164 parts of aggregate, 115-154 parts of Portland cement, 44-61 parts of water, 1.1-1.5 parts of a water reducing agent, 8-17 parts of silicon powder and 12-15 parts of gypsum.According to the anti-freezing concrete, the silicon powder is added as an admixture, the silicon powder and cement can be hydrated to generate a hydraulic cementing material, and the silicon powderhas rheological property and can fill micro-cracks in the concrete, so that the pore structure in rock-like mass is improved, the bonding effect between internal particles and the cementing material is enhanced, and the impermeability and the frost resistance of the concrete are improved.

The invention discloses a production method of a marine engineering cement block. The marine engineering cement block comprises the following raw materials in parts by weight: 30-80 parts of slag, 10-50 parts of a sulphoaluminate cement clinker, 0.03-0.05 part of an accelerating activating admixture, 2-4 parts of an early strength agent, 0.3-0.5 part of a water reducing agent, 0.005-0.007 part of an air entraining agent and 0.3-0.5 part of a retarder. The production method comprises the following steps: respectively crushing, milling and homogenizing the slag waste, the sulphoaluminate cement clinker, the accelerating activating admixture and the early strength agent; and mixing and homogenizing ingredients at the ratio, adding the water reducing agent, the air entraining agent and the retarder for mixing, homogenizing and molding to obtain the product. The marine engineering cement block disclosed by the invention also has excellent characteristics of high strength, seawater washing resistance, early hardening resistance, long-term erosion resistance and the like besides of properties of an ordinary cement block, and is especially suitable for ports, wharfs and other erosion medium-corroded engineering.