39results about How to "Prevent back alkalinity" patented technology

The invention provides a concrete sealing curing agent. The concrete sealing curing agent is prepared from a component A and a component B, which are packaged independently, wherein the component A is prepared from the following components in percentage by weight: 20 weight percent to 25 weight percent of sodium silicate, 5 weight percent to 15 weight percent of poly-lithium silicate, 5 weight percent to 15 weight percent of silica sol, 3 weight percent to 7 weight percent of a photocatalyst, 0.5 weight percent to 1 weight percent of a penetrating agent, 0.5 weight percent to 1 weight percent of a surfactant, 0.4 weight percent to 0.6 weight percent of a surface modifier, 0.4 weight percent to 0.6 weight percent of a de-foaming agent and the balance of de-ionized water; the component B is prepared from the following components in percentage by weight: 0.2 weight percent to 0.6 weight percent of graphene, 25 weight percent to 45 weight percent of organic silicon modified water-based epoxy resin, 5 weight percent to 15 weight percent of silica sol, 0.1 weight percent to 2 weight percent of a catalyst, 0.1 weight percent to 3 weight percent of a stabilizer and the balance of de-ionized water. The concrete sealing curing agent provided by the invention has the advantages of reasonable design, high rigidity, high permeability, good wearing resistance and good waterproof performance, and also has a protection effect on concrete.

The invention relates to inorganic antibacterial coating and a preparation method thereof and belongs to the technical field of building coating. The inorganic antibacterial coating provided by the invention is mainly prepared from the following components in parts by weight: 20 to 50 parts of a silicon-containing inorganic binding agent, 5 to 10 parts of inorganic oxide electret crystal whiskers,5 to 20 parts of silver ion loading type diatomite, 10 to 30 parts of inorganic pigment and filler, 0.1 to 1 part of a stabilizer, 0.5 to 3.5 parts of an auxiliary agent and 12 to 24 parts of water.According to the inorganic antibacterial coating provided by the invention, the stability and dispersity of the coating are ensured, and the antibacterial performance and water resistance of the coating are improved.

The invention discloses a gap filler which comprises the following components in parts by weight: 40-70 parts of quartz sand, 20-30 parts of sulfoaluminate cement, 3-10 parts of antioxidant, 1-3 parts of adhesive, 1-2 parts of cellulose ether, 1-3 parts of mold preventive, 5-10 parts of inorganic aluminum salt waterproofing agent, 1-3 parts of organosilicon leveling agent and 0.5-1 part of lignin fiber. The gap filler disclosed by the invention has the advantages of favorable water resistance, favorable re-alkali resistance, mold resistance and oxidation resistance, is easy and safe for construction, and thus, is a favorable gap filler for spreading and attaching ceramic tiles.

The invention discloses environment-friendly decoration cement and belongs to the technical field of building materials. The environment-friendly decoration cement is prepared from the following raw materials in parts by weight: 45-60 parts of Portland cement, 0-4 parts of an expanding agent, 4-10 parts of metakaolin, 2-6 parts of silicon powder, 1-3 parts of crystal whiskers, 5-10 parts of redispersible emulsion powder, 1-2 parts of a water reducer, 0.3-1.0 part of a defoaming agent, 0.1-0.15 part of cellulose ether, 5-10 parts of ground calcium carbonate and 10-15 parts of an environment-friendly material. The environment-friendly decoration cement disclosed by the invention has no problems such as alkali efflorescence and cracking and has good peaceability, corrosion resistance and environment-friendly performance.

The invention discloses a gap filler which comprises the following components in parts by weight: 40-70 parts of quartz sand, 8-12 parts of calcium carbonate, 20-30 parts of sulfoaluminate cement, 3-10 parts of antioxidant, 1-3 parts of adhesive, 0.2-0.6 part of cellulose ether, 1-3 parts of mold preventive and 5-10 parts of inorganic aluminum salt waterproofing agent. The quartz sand used as the main body component of the gap filler lowers the cost of the gap filler; the mold preventive is mainly used for preventing mold due to water absorption; the addition of the inorganic aluminum salt waterproofing agent can perform the waterproofing function after the gap filler is cured; and the sulfoaluminate cement can prevent the re-alkali phenomenon after use for some time, accelerate the hydration of cement and enhance the strength. The gap filler is easy and safe for construction, and thus, is a favorable gap filler for spreading and attaching ceramic tiles.

The invention relates to the field of material application and in particular relates to a composite soft material and a manufacturing method thereof. The composite soft material is prepared from polymer latex, an ultraviolet light absorber, a defoaming agent, a water reducing agent, water, ordinary portland cement, inert filler, quartz powder, a water retaining agent, a water repellent agent, fire retardant high-activity mineral filler and modified bentonite according to a certain weight ratio. The preparation method is simple, raw materials are easily obtained, the obtained soft material has a favorable fire retardance effect and high waterproof and impervious performances, alkali reversion can be thoroughly eliminated, and a heat insulation material at the inner layer is well prevented from being damaged. The composite soft material is a veneer material which is especially suitable for polyurethane foams for external wall external insulation.

The invention provides an admixture special for color concrete and an application method and using method of the admixture. The special admixture comprises a water reducing disperse component and a modified durable component, wherein the water reducing disperse component comprises the following components in parts by mass: 8-20 parts of modified lignosulfonate, 15-35 parts of polymethylene sodium naphthalene sulfonate, 1-5 parts of sodium dodecyl sulfate and 50-70 parts of water; the modified durable component comprises the following components in parts by mass: 5-16 parts of styrene-maleimide, 15-28 parts of organic silane coupling agent, 8-20 parts of stearate, 40-60 parts of redispersible polymer powder and 3-7 parts of inhibitor. According to the special admixture provided in the invention, alkali returning of the color concrete can be inhibited, and the workability, glossiness and durability of the concrete are improved.

The invention discloses a radiation-proof decoration cement, and belongs to the technical field of building materials. The decoration cement comprises, by weight, 40-50 parts of radiation-proof cement, 0-4 parts of an expanding agent, 4-10 parts of metakaolin, 2-6 parts of silicon powder, 1-3 parts of whiskers, 5-10 parts of redispersible latex powder, 1-2 parts of a water reducer, 0.3-1.0 part ofan antifoaming agent, 0.1-0.15 part of cellulose ether and 25-30 parts of barite powder. The radiation-proof cement is one of barium cement, strontium cement and boron-containing cement. The radiation-proof decoration cement has the advantages of no alkali efflorescence or cracking problems, good workability, good corrosion resistance and very strong radiation resistance.

The invention provides a water-based alkali resistant paint, which comprises the following raw materials by weight: 40-60 parts of an organosilicon modified pure acrylic emulsion, 50-70 parts of water-based unsaturated polyester acrylate resin, 40-60 parts of waterborne polyurethane resin, 10-15 parts of triethylenetetramine, 11-14 parts of a film-forming assistant, 9-15 parts of a defoaming agent, 7-9 parts of a curing agent, 20-28 parts of an alkali-resistant emulsion, 10-13 parts of hydroxyethyl cellulose, 8-10 parts of a formaldehyde absorbent, 12-16 parts of titanium dioxide, 12-16 parts of talc powder, 18-25 parts of a pure acrylic emulsion, 2-4 parts of a preservative, and 30-40 parts of water. The water-based alkali resistant paint provided by the invention can adsorb formaldehyde and purify air, does not cause harm to human health, and is suitable for internal and external brick walls and the like. The paint contains alkali-resistant component, at the end of construction, the paint film has good effect, and efflorescence and floating are unlikely to appear, thus effectively preventing wall alkali efflorescence. Also, the water-based alkali resistant paint has strong adhesion and low VOC.

The invention discloses epoxy seal paint which comprises a main material and a curing agent. The main material is prepared from, by weight, 15-25 parts of epoxy resin, 50-60 parts of xylene and 20-30 parts of n-butyl alcohol; the curing agent is prepared from, by weight, 45-60 parts of polyamide resin, 30-40 parts of xylene and 10-20 parts of n-butyl alcohol. When the epoxy seal paint is used, the main paint and the curing agent are uniformly mixed to be used according to the weight ratio of 5:1. The invention further discloses a preparation method of the epoxy seal paint. The epoxy seal paint is simple in component, convenient and fast to produce, convenient to construct, high in seepage force and capable of preventing concrete members from alkali efflorescence, good caking properties with a concrete base surface and polyurethanes class or fluorocarbon class finishing coat are achieved, and adhesive force is larger than 2.5 MPa.

The invention relates to the technical field of crop planting, in particular to a Yellow River Delta saline-alkaline land winter wheat water-saving yield-increasing sowing method. The method includessteps: treating previous-crop straw, performing primary rotary tillage once, deeply loosening, watering, performing secondary rotary tillage for 2-3 times, compacting before sowing, performing full-width sowing, and compacting at proper time after sowing. Linked technical steps are adopted for operation and supplement each other, promote each other and are scientific in design, the defects in existing winter wheat planting in Yellow River Delta regions are fully eliminated, and yield increase of winter wheat in the regions is realized on the basis of water saving.

The invention discloses a no-tillage rotation method for Avena sativa and forage sorghum in a coastal mud flat. The method comprises the following steps: (1) selecting a planting area, (2) managing soil in spring, (3) planting Avena sativa, (4) planting forage sorghum, (5) performing growth and harvest of forage sorghum and (6) performing change into a next crop. According to the no-tillage rotation method, crop rotation farming agriculture and physical, chemical and biological control measures of saline-alkali land are combined organically, a saline-alkali land improvement mode with ecological, economic and social benefits is obtained, and a positively promotion effect is generated on transformation of saline-alkali land in the coastal mud flat and sustainable development of agriculture.

The invention discloses a construction method of planting orychophragmus violaceus in a saline-alkali land greening protection slope, and relates to the technical field of greening protection slopes.The method comprises the following steps: (1) cleaning of a slope surface; (2) soil amelioration; (3) preparation of greening concrete; (4) pouring; (5) pretreatment of a sowing slope surface; (6) sowing of the orychophragmus violaceus; and (7) maintenance. The method provided by the invention reduces an efflorescence phenomenon in the saline-alkali land poured greening protection slope, and solves the problems that vegetation of the saline-alkali land protection slope is single and has a low survival rate.