37results about How to "High coagulation strength" patented technology

The invention discloses a vehicle inner ornament and the manufacturing method. It is made up of frame base material and fixed a buckle that includes bottom board. The feature is that the frame base material compounding or polypropylene included woodflour board including polypropylene board, and the bottom board of fixed buckle is connected on the polypropylene board or the woodflour board. The method includes the following steps: softening frame base material and polypropylene board or woodflour board, putting fixed buckle into mold and locating the polypropylene board or woodflour board and base material into mold, and ensuring the polypropylene board and woodflour board is located between bottom board and frame base material; taking pressure forming. The bond strength between buckle and frame base material could reach 420N, and it is low cost. It is convenient to produce and has high efficiency.

The invention relates to a phase-transition self-temperature-regulating heat-preserving facing brick of an external wall, which is an integrated structure compacted by a phase-transition heat-preserving layer and an inorganic facing layer, wherein the phase-transition heat-preserving layer is mixed by proportion and compacted by hull-type expanded perlite heat-preserving aggregates, phase-transition temperature-regulating aggregates and cements; the inorganic facing layer is mixed by quartz sand, calcium carbonate, calcium oxide, cement and silicon oxide powders; and the phase-transition temperature-regulating aggregate is made of phase-transition cores and encapsulated hulls. The manufacturing method not only effectively solves the encapsulation problem of the phase-transition material, leads the prepared phase-transition self-temperature-regulating heat-preserving facing brick of the external wall to have excellent heat-preserving performance, waterproof performance and permanent anti-ageing performance, but also radically solves the obsolescence of thermo-physical property and the leakage problem of phase-transition material in the circulation process. The facing brick has the advantages of light weight, strong adhesion strength, large compressive strength, heat insulation, heat preservation, waterproof and moisture-proof performances, obvious energy-saving effect, and the like.

The invention discloses a blocking controlling and leaking stopping tool assembly applied to drilling engineering. The blocking controlling and leaking stopping tool assembly comprises an inner barrel, a cylinder sleeve, a locking ring, a locking sleeve, a sealing and separating glue barrel, an end base, a rubber plug base, a ball seat, a ball, a front rubber plug and a back rubber plug, wherein the ball seat is matched with the ball, and the rubber plug base is matched with the front rubber plug and the back rubber plug. The inner barrel is sleeved with the cylinder sleeve which can move. The end base is arranged at the lower end of the inner barrel in a sleeved mode. The sealing and separating glue barrel is arranged between the locking sleeve and the end base. The cylinder sleeve is arranged above the locking sleeve. Circulating holes are formed in the inner barrel. The invention further discloses a method for stopping well drilling leaking through the blocking controlling and leaking stopping tool assembly. The method comprises the following steps that the blocking controlling and leaking stopping tool assembly is placed downwards to a well; the ball is thrown to the needed position to increase the pressure, and the sealing and separating glue barrel is used for sealing in a sitting mode; heavy mud is recycled; the front rubber plug is pressed to the needed position, and water and mud injection is carried out; the back rubber plug is pressed to the needed position; the mud is replaced; the pressure is increased to knock down the ball seat; the mud is continuously replaced until the back rubber plug makes contact with the front rubber plug; mud replacing is stopped, and the tool assembly is pulled out of the hole; cement setting is carried out, and leaking stopping is finished. When the tool assembly is used for stopping leaking of the well, annulus mud and formation fluid cannot be mixed into cement paste, pollution is not produced during waiting on cement stopping, and the setting strength of a cement sheath plug is high.

The invention provides a low hydration heat and low density cement paste system for well cementation, and a preparation method and application thereof, the low hydration heat and low density cement paste system comprises the following components by weight: 60-70 parts of low heat portland cement; 30-40 parts of a composite lightening material; 2-3 parts of a fluid loss agent; 0 to 0.15 part of retarder; 0-1.5 parts of a reinforcing agent; and 70-85 parts of water. The low-hydration-heat and low-density cement paste system prepared by the invention has a wide temperature application range of 40-85 DEG C and a moderate density application range of 1.25-1.45 g/cm < 3 >; and compared with a G-grade cement low-density system under the same condition, the thickening time is longer (40-80 min is prolonged), and the solidification strength is higher (15-30% is improved) for 24/48 h. Meanwhile, the performance of a formula system is adjusted, a reasonable one-way adjustment space is reserved, the contradiction and problem that a retarder and a reinforcing agent are used at the same time in an existing system are solved, and meanwhile, the use amount of additives is greatly reduced.

The invention relates to a shallow-layer plugging agent. Oil-well cement is used as a substrate, a fluid loss agent, a dispersant, an active agent and a modifier are added, the plugging agent is mainly characterized in that additives are used for changing conventional cement paste performance, so that the construction requirement of plugging, perforation plugging and non-plug perforation plugging is met, in the plugging construction process, a specific construction technology is adopted, the one-time plugging success rate is increased effectively, shallow-layer plugging agent slurry in casings can be circulated out of the ground, and plugging agent plugs are not reserved.

The invention belongs to the technical field of building materials, and particularly relates to aluminate cement and a preparation method thereof. According to the preparation method provided by the invention, after aluminate cement clinker is prepared, sulfate, iron-ore slag and titanium dioxide are added, so that not only can the hydration solidification of the aluminate cement be shortened, butalso the solidification strength is improved, more importantly the problem that the traditional aluminate cement is poor in long-term strength can be improved, and the compressive strength of the cement after being hydrated for 28 days can still reach 65 to 75 MPa.

The invention discloses a rapidly-fixed desert mortar, and relates to the field of building materials. The rapidly-fixed desert mortar provided by the invention comprises the following components in parts by mass: 15 to 25 parts of portland cement, 6 to 14 parts of high-aluminum cement, 2 to 8 parts of anhydrite, 6 to 13 parts of fly ash, 32 to 45 parts of desert sand, 9 to 16 parts of mineral slag powder and 3 to 6 parts of a composite auxiliary agent. The rapidly-fixed desert mortar provided by the invention has good compressive strength, fluidity and tensile adhesive strength.

The invention relates to a modified inorganic thermal-insulation mortar which comprises the following components in parts by mass: 5-10 parts of Portland cement, 1-2 parts of coal ash, 0.1-0.3 part of latex powder, 0.05-0.1 part of hydroxypropyl methylcellulose, 0.01-0.03 part of polypropylene fiber and 0.05-0.2 part of wood fiber. The ratio of the weight value (Kg) of the sum of raw materials to the volume value (L) of the modified light-weight aggregate is 1:4-1:8. A waterproofing agent is utilized to coat a Portland cement layer on the surface of the thermal-insulation light-weight aggregate to obtain the thermal-insulation aggregate, and a plurality of cementing materials are added to obtain the thermal-insulation material. The thermal-insulation mortar is convenient and simple to prepare, improves the properties of the thermal-insulation aggregate, and enhances the strength and hydrophobicity.

The invention discloses a fireproof gelatinizing agent and a preparation method thereof, and relates to the technical field of fireproof materials. The fireproof gelatinizing agent is characterized bycomprising the following raw materials in parts by weight: 40-60 parts of magnesium oxide, 5-10 parts of magnesium chloride, 5-10 parts of gypsum, 5-8 parts of sodium silicate, 15-18 parts of a filler, 50-100 parts of a solvent, 5-8 parts of organic silicon modified resin and 1-5 parts of calcium carbide. The fireproof gelatinizing agent does not contain any heat-seal toxic substance, is non-combustible, does not generate any toxic gas when being burnt, and is safe and environment-friendly.

The invention discloses an ultralow-density high-strength well cementing fluid which comprises the following components in percentage by mass: 10-30% of a modified perlite vitrified microbead lightening material, 60-75% of a reinforcing material, 5-9% of a coagulation accelerating early strength agent, 5-9% of a coagulation accelerating early strength additive and 10-15% of G-grade cement. The perlite vitrified microbeads in the lightweight material are subjected to surface treatment, and the components interact under a calcium-containing alkaline condition to realize physical and chemical reactions, so that the obtained mixture can realize good thixotropy and high coagulation strength; and in the using process, the ultra-low-density high-strength well cementing fluid and an ultra-low-density well cementing fluid leading slurry system (prepad fluid) can be obtained through the material proportion. The well cementing fluid leading slurry system has good compatibility with the drilling fluid, that is, the well cementing fluid leading slurry system is not afraid of pollution of the drilling fluid. Therefore, the replacement efficiency can be improved, the mixed slurry can be reduced and the well cementing quality can be improved by using the well cementing fluid leading slurry system for well cementation construction.

The invention discloses aquatic plant improved concrete. The concrete is prepared from raw materials in parts by mass as follows: 50-400 parts of metaling, 100-160 parts of cement, 50-80 parts of yellow sand, 20-30 parts of clay, 5-20 parts of diatomite, 5-10 parts of glass fibers, 10-20 parts of polyurethane particles and the like. The aquatic plant improved concrete has good structural strength, toughness and weather resistance, an excellent anti-seismic property and stable performance and is not prone to crack.

The invention discloses a construction method for an anti-seismic and pulling-resisting pipe pile. The construction method includes the following steps that firstly, an installation pit is formed in a set pile position; secondly, a folded pulling-resisting part is installed; thirdly, an anchoring seat and the pipe pile are installed in the installation pit; and fourthly, concrete is poured in the installation pit, and filing and curing are conducted. The construction method is short in construction period, the anti-seismic and pulling-resisting strength of the pipe pile is good, and the bearing force is high.

The invention provides a spillway tunnel bottom plate construction method. The spillway tunnel bottom plate construction method comprises the following steps that underground earthwork is gradually excavated in a target area section by section to form a plurality of linear tunnel sections and a plurality of bent tunnel sections, all the linear tunnel sections and all the bent tunnel sections are finally communicated in sequence according to the excavation sequence to form a spillway tunnel, meanwhile, bottom plate units are built in a segmented mode in sequence in the extending direction of the spillway tunnel, all the bottom plate units are finally and sequentially connected according to the building sequence to form the spillway tunnel bottom plate, and when the bottom plate units are located in the linear tunnel sections, the corresponding bottom plate units are shorter than 8m, and when the bottom plate units are located in the bent tunnel sections, the corresponding bottom plate units are shorter than 4m. By the adoption of the technical scheme, disturbance to surrounding rock of the spillway tunnel is reduced, the surrounding rock is reinforced in time, water seepage is effectively prevented by excavating the spillway in a segmented mode, building the bottom plate units in a segmented mode and pouring concrete in a layered mode, and the safety protection performance is enhanced by building side wall units on the left sides and the right sides of the bottom plate units; and the concrete engineering construction quality is improved.

The invention discloses an anti-cracking and anti-hollowing dry-mixed mortar additive. The anti-cracking and anti-hollowing dry-mixed mortar additive comprises, by weight, 5-10 parts of zwitterionic liquid modified dehydroabietylamine, 2-5 parts of polyethylene glycol diacrylate/triethoxysilyl propylmaleic acid/N,N'-methylene bisacrylamide copolymer, 1-3 parts of humic acid, 10-20 parts of pumicepowder, 8-12 parts of zircon sands, 3-8 parts of seashell powder, 10-20 parts of palygorskite powder, 5-10 parts of pearl stone powder, 2-5 parts of plant polysaccharides and 0.5-1.5 parts of cholineglycerophosphate. The invention also discloses a preparation method of the dry-mixed mortar additive. The dry-mixed mortar additive has the advantages of good performance stability, small mixing amount, effectiveness in improvement of the water retention rate and cohesiveness of mortars, improvement of the strength of the mortar and the cohesiveness and synergistic deformation performances of themortar and a base layer, effectiveness in prevention of cracking and hollowing of wall surfaces, and high economic, social, promoting and applying values.

The invention discloses a preparation method of an enhanced fly ash grinding aid, and the specific method is as follows: firstly preparing an additive A, then preparing an additive B, then mixing the additive A, the additive B, gypsum and limestone according to a certain proportion, and stirring to obtain the enhanced fly ash grinding aid. According to the cement grinding aid, the stability of cement is guaranteed, the setting strength of the cement is enhanced, meanwhile, the compressive strength and the breaking strength of cement mortar are guaranteed, the prepared grinding aid is high in activity, the grinding efficiency is greatly improved, in the grinding process of the cement, the over-grinding reality and the ball and forging wrapping phenomena are avoided, the use amount of the cement is greatly reduced, and the cost is reduced. According to the invention, the carboxylic acid compound is used as the raw material, and the preparation process is free of chlorine element, so that the reinforcing steel bar cannot be rusted when the cement is used.

The invention provides a nickel-iron slag building material and a preparation method thereof, and belongs to the technical field of metal smelting solid waste utilization. The nickel-iron slag building material comprises the following components by weight: 40-60 parts of cement clinker, 1-25 parts of nickel-iron slag micro powder, 2-8 parts of gypsum, 2-8 parts of phosphate, and 0.1-10 parts of an additive, wherein the nickel-iron slag micro powder is prepared by using industrial nickel-iron slag as a raw material and conducting a grinding process to obtain a micro powder with the specific surface area of 350-550 m<2>/kg. By optimizing and adjusting the grinding particle size, the blending ratio and the composition structural characteristics of the nickel-iron slag micro powder, the setting strength of the cement clinker is improved.