40results about How to "Durability impact" patented technology

The invention discloses a reactive powder concrete pipe column for ocean engineering. The reactive powder concrete pipe column comprises a reactive powder concrete casing pipe (1), a stirrup (2), a longitudinal bar (3) and a concrete column (4), wherein the stirrup (2) and the longitudinal bar (3) are arranged in the reactive powder concrete casing pipe (1). The reactive powder concrete pipe column is characterized in that the stirrup (2) is a closed fiber-reinforced plastic stirrup (2), the longitudinal bar (3) is a longitudinal fiber-reinforced plastic bar (3), and corrosion-resistant short fibers are mixed into the reactive powder concrete of the casing pipe (1); and the concrete column (4) is cast in the casing pipe (1) in situ and is made of concrete prepared by mixing seawater and sea sand. The reactive powder concrete pipe column has the characteristics of excellent ocean environment corrosion resistance, prefabrication construction, high axial bearing capacity, utilization of on-site materials such as seawater and sea sand, good economical efficiency and the like, is a novel structural column capable of meeting the construction requirements of ocean engineering and particularly ocean island engineering and can also replace a steel pipe pile in ocean engineering.

The invention discloses a device (401) for cleaning gas in blowing machines for shaping plastics material pre-forms to form plastics material containers. According to the invention at least one gas-processing device (416), which is capable of filtering the gas in a sterile manner and / or of reducing a quantity of an oxidative disinfecting / sterilizing agent contained in the gas flowing through and / or flowing past, is arranged in at least one gas line (402, 402a, 402b) which is a gas supply line (402a) or a gas removal line (402a) of a blowing station (8). The device for cleaning gas can filter gases in a manner of asepsis and / or can reduce the mass of oxidized disinfectant and / or bactericide contained in the flowing gases.

The invention provides a super cementitious material based on wet grinding and a preparation method and application thereof. The super cementitious material based on wet grinding is made from, by mass, 28-60% of cement, 1-3% of a surfactant, 0.1-0.2% of a stabilizer and 37-70% of water through wet grinding. The super cementitious material based on wet grinding is mainly made from ordinary Portlandcement; the surfactant and the stabilizer are added during wet grinding, so that the super cementitious material having medium particle size of 2-5 mu m is acquired. As the whole system is in prehydrated state after wet grinding and the particle size is small, the super cementitious material herein has higher hydration degree and very high activity than raw cement; after the cement is partially replaced, early strength can be improved evidently. Grading can be optimized, and later strength can be improved to certain degree, wherein 12-hour strength increase ratio is up to 142%.

The invention relates to the field of prefabricated type concrete structures, and particularly discloses a preparation device of a directional steel fiber reinforced concrete prefabricated component.The preparation device comprises a bottom supporting frame, the supporting frame is a rectangular metal frame, two first sliding rails in the horizontal direction are arranged on the upper surface ofthe supporting frame, and the two first sliding rails are symmetrically arranged; a coil is arranged on the first sliding rails, pulleys are fixed to the bottom of the coil, and the coil is slidably connected to the first sliding rails through the pulleys; two symmetrically-arranged steel supports are placed at the bottom of the supporting frame, the upper surfaces of the steel supports are located in the internal space of the coil, the steel supports are located between the two first sliding rails, a non-metal formwork is placed on the steel supports and penetrates through the coil, and vibrating rods are arranged on the coil; and a current exchanger is further arranged beside the supporting frame and electrically connected with the coil. The preparation device aims to solve the problem that tensile strength of a concrete matrix is insufficient due to steel fiber random distribution and low unidirectional reinforcement efficiency in an existing steel fiber concrete component.

The invention relates to a concrete curing device and a curing method for winter construction in a cold region. During winter construction in the cold region, a current concrete curing measure is highin energy consumption, has potential safety hazard, and is difficult to fit for concrete curing in winter in the cold region. The curing device is a rectangular frame body sequentially enclosed by four side plates, wherein concrete is filled in the rectangular frame body; a top plate and a bottom plate are horizontally arranged on the top part and the bottom part of the rectangular frame; a phase-change material layer is arranged on the outer wall of a template frame and is an electrified and heat-storage layer body; and a heat insulating layer is arranged on the outer wall of the phase-change material layer. According to the method provided by the invention, the phase-change material layer located between the template frame and the heat-insulating layer transfers heat to the concrete through the template frame, and continuously heats and cures the concrete through a repetitive heating and heat releasing way. The concrete curing device and the curing method for winter construction inthe cold region provided by the invention are used for concrete curing in winter site construction in the cold region.

The invention belongs to the technical field of bridge construction materials and relates to a novel bridge post-tensioned prestressed tunnel grouting material and a preparation method thereof. The novel bridge post-tensioned prestressed tunnel grouting material comprises 55-85% of portland cement clinker, 5-25% of ore powder and 5-25% of a grouting agent. The novel bridge post-tensioned prestressed tunnel grouting material is prepared by simple processes, does not contain gypsum, fly ash, vulcanic ash and light substances of a grouting agent, does not produce laitance at the highest point of a curve pipe under pressure in bridge post-tensioned prestressed tunnel grouting and in a voltage stabilization period and in a hardening period, has high strength, does not cause layering after secondary supplied grouting liquid hardening in grouting liquid supply treatment, effectively prevents prestressed strand corrosion and fracture, produces great influence on bridge structure safety and endurance and has a wide popularization meaning.

The present invention relates to an application of high-fine recovered dust ash of cement plant. Said high-fine recovered dust ash can be used as concrete blending material or component of concrete blending material. Said high-fine recovered dust ash is added in the concrete, it can raise compaction degree of cementing material in concrete and can raise early strength of concrete, and can reduce production cost of concrete.

The invention relates to a tyre comprising a transponder, said tyre having:-a crown comprising a crown reinforcement having an axial end at each edge, at each axial end thereof, connected by a sidewall to a bead having an inner end; -a carcass reinforcement layer made up of parallel metal reinforcements anchored in each bead around the bead core, thereby forming a main portion and a bead; -said transponder comprising a dipole antenna consisting of a spring defining a pitch P and a diameter D, the length of said spring defining a longitudinal axis, characterized in that the ratio between the pitch (P1) and the diameter (D1) of the annular loop of the first region of the spring is greater than 0.8, and in that the length of the annular loop of the second region of the spring is greater than 0.8. And the transponder is positioned axially outward with respect to the inner end of the bead and radially between the upper end of the bead core and the axial end of the crown reinforcement.

The invention provides a method and a device for obtaining reference current of a memorizer reading circuit as well as a reading method. The method for obtaining the reference current comprises the following steps: selecting 2n storage units located in the same row of storage units to be read in a storage array and corresponding to different bit lines, in which n is a positive integer; carrying out operation of programming 2n storage units, programming n storage units in the 2n storage units as 01, and programming rest n storage units in the 2n storage units as 10; taking an average value of current of the bit lines of the corresponding 2n storage units during carrying out operation of reading the storage units to be read as the reference current. Through application of the scheme, the reference current is obtained; reading speed and reading accuracy of the reading circuit can be improved; and the influences on durability of the selected storage units are reduced.

The invention relates to a horizontal embedded anchorage foundation and relates to the technical field of bridge engineering. The horizontal embedded anchorage foundation comprises an anchor body, anembedded wall, a buttress, a cable-stayed beam and an anchor chamber. As the embedded wall is arranged below the bottom surface of the anchor body and is horizontally embedded in bed rock, a larger part of anti-slip bearing capacity can be provided for the anchorage foundation; and compared with a gravity type anchorage foundation, the required anchor body weight is smaller when the same; in addition, a boss is arranged at the bottom of the anchor body to meet the requirement of an anchoring system for an anchoring space, and the situation that the foundation pit excavation amount is increaseddue to overall downward moving of the anchor body base surface can be avoided; and the bottom surface of the boss is arranged on the sea level or above the underground water level line, so that underground water can be prevented from immersing into the anchor body to influence the durability of the main cable anchoring system anchored in the anchor body boss. Therefore, the anchor foundation scale can be reduced, the material consumption can be reduced, the mountain excavation amount can be reduced, and the durability of a main cable anchoring system can be ensured.

The invention belongs to the technical field of building materials and relates to a slag additive and its preparation method and use. The slag additive comprises, by weight, 5-50% of glycol, 5-30% of diglycol, 10-50% of glycerol, 10-50% of lithium sulfate, 0.1-5% of sodium sulfate, 0.1-5% of sodium sulfocyanate, 1-10% of sodium hydroxide and 15-95% of water. A use ratio of the slag additive in slag is in a range of 0.1-0.5%. The slag additive can improve slag seven-day activity by 10-15% and slag 28-day activity by 5-10%.

The invention discloses an anti-slip device for an existing cable clamp of a flexible suspension bridge and a method. The anti-slip device includes a limiting mechanism, the limiting mechanism includes two cable clamp buckles and a fastener, each cable clamp buckle includes a clamping part and a lug plate, the two clamping parts form a clamping buckle for clamping a steel cable, and the inner sideof the clamping buckle is provided with a clamping groove; the use method comprises the steps of determining the size of the clamping groove, processing the cable clamp buckles and installing the limiting mechanism. According to the anti-slip device, through the arrangement of the limiting mechanism, the existing cable clamp is effectively limited, the relative sliding between the existing cableclamp and a main cable is limited, and the reliability and durability of the existing cable clamp are ensured; the middle of the clamping buckle is provided with the spiral clamping groove, the friction force and biting force between the clamping buckle and the main cable are increased, the anti-slip force of a limiting body is effectively increased, the purpose of limiting the existing cable clamp is accordingly achieved, the change of the line shape and appearance of the main cable is prevented, and the durability of the bridge is influenced.

The invention provides a method for making a Huzhou ink brush for traditional Chinese painting. Horse's mane is treated with all natural plants, fennel decoction and small semen cassiae granules, so that firstly, grease on the horse's mane can be removed better; secondly, insects can be repelled, and insect bites can be prevented; thirdly, the horse's mane can be softened. The horse's mane is ultrasonically treated by the small semen cassiae granules, so that the grease on the horse's mane can be further removed, coloring can be realized, the dyeing effect is good, and a certain antibacterialeffect can be realized. In conclusion, with adoption of the method for making the Huzhou ink brush for traditional Chinese painting, the selected horse's mane is treated with fennel and semen cassiae,no chemical reagent is used in the whole treatment method, and the obtained Huzhou ink brush has the advantages that the defect of insufficient ink absorbing capacity of the ink brush made of the horse's mane is overcome, and the durability of the ink brush cannot be affected.

The invention belongs to the technical field of offshore pile sinking, and discloses a concrete pipe pile offshore pile sinking construction method. The method comprises the steps that firstly, a grouting rotary spraying pipe for high-pressure nozzle operation and a prefabricated concrete pipe pile are vertically placed over a pile sinking position, and the concrete pipe pile is arranged outside the grouting rotary spraying pipe in a sleeving mode and clamped and fixed through a pile holding device; then, drilling and high-pressure rotary spraying operation are carried out, after the groutingrotary spraying pipe descends by a section depth, the concrete pipe pile is downwards conveyed by the same section depth through the pile holding device, and the steps are repeated until the concretepipe pile reaches the designed elevation position; then, the grouting rotary spraying pipe is upwards lifted out of the concrete pipe pile; and finally, standing and curing are carried out until the strength of cement sand meets the requirement. According to the method, the problem that the concrete pipe pile is difficult to sink due to the strong friction resistance of the sand in the high-stressstate to the pile wall can be effectively solved, the connection strength of the sand and the pile interface can be effectively improved, the effective pile diameter of the concrete pipe pile is enlarged, the bearing capacity is improved, one-time construction of offshore pile sinking can be realized, and the construction period is saved.

The invention discloses a concrete antiquing method which mainly comprises the following four steps: step 1, before pouring concrete, assembling a mold, and spraying a layer of concrete antiquing treatment liquid A on the inner surface of the mold; step 2, pouring concrete into the mold, and curing and demolding; step 3, washing the surface of the demolded concrete with clear water; and step 4, spraying an antiquing treatment liquid B after the water on the surface of the concrete is evaporated. According to the method, the antiquing effect is directly achieved after concrete demolding throughearlier-stage treatment, convenience and environmental protection are achieved, and the durability of concrete is not greatly affected.

The invention belongs to the technical field of cultural relic protection. The invention particularly discloses a digital full-color pen connecting method for repairing ancient calligraphy and painting. The method comprises the following steps: firstly, carrying out high-precision scanning on ancient calligraphy and painting before full color, then carrying out full-color pen connection on incomplete parts of the ancient calligraphy and painting in a computer by using digital painting software, then carrying out color correction on the whole process by using a color management system, and finally copying repaired works by using artistic micro-spraying equipment. The problems that original artistic styles of the ancient calligraphy and paintings are damaged due to the fact that no basis isprovided for pen connection during ancient calligraphy and painting restoration, and picture content cannot be comprehensively displayed during ancient calligraphy and painting exhibition due to the fact that pens cannot be connected are solved. The method is quick and safe to operate and high in reversibility, does not influence the strength, color, durability and other properties of the ancientpainting and calligraphy image layer, and conforms to the principle of minimum intervention of cultural relic protection.

The invention provides a super-gelled material based on a wet grinding process and its preparation method and application. The super-gelled material based on a wet-milled process consists of 28% to 60% cement, 1% to 3% Surface modifying agent, 0.1-0.2% stabilizer and 37%-70% water are prepared through wet grinding process. The super-cemented material based on the wet grinding process of the present invention uses ordinary Portland cement as the main raw material, and is processed through the wet grinding process, and in the wet grinding process, a surface modifier and a stabilizer are added to obtain a median particle size of 2-5μm super-cemented material, because after the wet grinding process, the whole system is in a "pre-hydration" state, and due to the finer particle size, the super-cemented material of the present invention has higher hydration than the original cement degree and extremely high activity, when part of the cement is replaced, the early strength can be significantly improved, and the gradation can be optimized, so that the later strength can also be improved to a certain extent. Among them, the 12h strength increase ratio can reach 142%.

A refrigeration cycle device comprises a heat pump cycle (10), a high-temperature-side heat medium circuit (21), and a low-temperature-side heat medium circuit (30). The heat pump cycle has a compressor (11), a high-temperature-side heat medium-refrigerant heat exchanger (12), a heat absorption decompression unit (14b), and a low-temperature-side heat medium-refrigerant heat exchanger (16). The high-temperature-side heat medium circuit has a heat exchanger (23) for heating that exchanges heat between a high-temperature-side heat medium and a fluid of which the temperature is to be adjusted. The low-temperature-side heat medium circuit has a plurality of heat absorption devices (31, 32, 36, 38) that causes heat to be absorbed in a low-temperature-side heat medium flowing out from the low-temperature-side heat medium-refrigerant heat exchanger; and heat absorption amount adjusting parts (33, 33a, 35a, 35b, 37) that change the heat absorption amounts of the low-temperature side heat mediums in the heat absorption devices, respectively. When the heat absorption amount adjusting parts change the heat absorption amounts of the low-temperature side heat mediums in the heat absorption devices, respectively, the refrigeration cycle device reduces the flow rate of a refrigerant flowing into the low-temperature-side heat medium-refrigerant heat exchanger.

The invention relates to an adsorbent for mud in a concrete aggregate. The adsorbent is prepared by uniform mixing of the following components by weight: 15-20% of unsaturated polyether, 5-10% of polyethylene glycol, 2-3% of phosphate, 2-3% of water glass, and the balance water. The adsorbent provided by the invention can be adsorbed on mud in the concrete aggregate prior to a polycarboxylate superplasticizer, can avoid losing water reduction, slump retention and other efficacy due to adsorption of the polycarboxylate superplasticizer by soil, reduces the concrete slump time losing, ensures the mechanical performance, durability and other requirements of concrete, and is conducive to smooth construction.

A composite cloth, comprising a cloth body and at least one functional film. The cloth body includes two opposite first surfaces and a second surface, and the cloth body has a plurality of micropores passing through the first surface and the second surface. The at least one functional film is bonded to the first surface of the cloth by vacuum pressing, and the at least one functional film is recessed toward the micropores to form a plurality of recesses respectively accommodated in the micropores. Inlets, and each concave portion is connected to the periphery of the hole defining the corresponding micropore. Wherein, the at least one functional film has functional components, so that the region of the composite cloth having the at least one functional film has a specific function.

The invention belongs to the technical field of building materials, particularly relating to high-calcium fly ash concrete. The high-calcium fly ash concrete comprises the following raw materials by weight in per cubic meter of concrete: 144-175 kg of mixing water, 224-480 kg of cement, 35-135 kg of high-calcium fly ash, 1007-1120 kg of gravels, 671-804 kg of sand, 1.7-9 kg of water reducing agents, 0-110 kg of low-calcium fly ash and 0-110 kg of slag powder, wherein the mixing water is temporary hardwater, and the concentration of HCO3<-> in the mixing water is greater than 300 mg / L. The concrete has the characteristics of easy production and high operability, the high-calcium fly ash resource can be fully utilized, and the poor stability is eliminated.

The invention belongs to the technical field of building materials and relates to a slag additive and its preparation method and use. The slag additive comprises, by weight, 5-50% of glycol, 5-30% of diglycol, 10-50% of glycerol, 10-50% of lithium sulfate, 0.1-5% of sodium sulfate, 0.1-5% of sodium sulfocyanate, 1-10% of sodium hydroxide and 15-95% of water. A use ratio of the slag additive in slag is in a range of 0.1-0.5%. The slag additive can improve slag seven-day activity by 10-15% and slag 28-day activity by 5-10%.

The present invention relates to a new application of high-fine recovered dust ash of cement plant. It can be mixed into cement and can be used as cement blending material and cement reinforcing agent. The tests show that it not only can raise strength of cement, but also can raise cement endurance quality, fluidity and workability, and can reduce production cost of cement.

An underground energy storage device arranged in an underground diaphragm wall comprises an air compressor, gas storage steel pipe tail sections, main gas storage steel pipes, continuous gas storage steel pipe sections and oblique gas storage steel pipe sections, wherein the two ends of each continuous gas storage steel pipe section are connected with the corresponding oblique gas storage steel pipe section and the corresponding gas storage steel pipe tail section respectively to form an independent gas storage steel pipe unit; one independent gas storage steel pipe unit is pre-buried in each of the two sides of each underground diaphragm wall unit; the two oblique gas storage steel pipe sections inside each underground diaphragm wall unit are connected with the first main gas storage steel pipe; the two gas storage steel pipe tail sections inside each underground diaphragm wall unit are connected with the second main gas storage steel pipe; the air compressor is arranged at one end of the first main gas storage steel pipe; one end of the second main gas storage steel pipe is an air outlet pipeline. By the adoption of the structure, the space inside the underground diaphragm wall is fully utilized, a compressed air energy storage system is formed without affecting the stability of the underground diaphragm wall, and the functions of cool supply, heat supply, pressure potential energy power generation and deformation detection of the underground diaphragm wall are achieved.

The invention relates to a valve assembly (1) for controlling the gas pressure in a gas rail (2) of a fuel system for supplying a gaseous fuel, in particular natural gas, to an internal combustion engine, said valve assembly (1) comprising: - a first valve (3) for connecting the gas rail (2) to a high-pressure gas tank (4); - a second valve (5) for connecting the gas rail (2) to a gas recirculation line (6); and - a control piston (7) which runs coaxially to the first and second valves (3, 5) and, in the axial direction, delimits a control chamber (8) which can be exposed to a hydraulic pressure medium. According to the invention, in the radial direction, the control piston (7) delimits a pressure medium leakage chamber (9) which is sealed from the gas recirculation line (6) by a sealing element (10) and can be connected to a pressure medium recirculation line (12) via a pressure medium cut-off valve (11). The invention further relates to a fuel system comprising a valve assembly (1) according to the invention for controlling the gas pressure in a gas rail (2).

The invention provides a preparation method and application of a fly ash slurry material based on a wet grinding process. The fly ash slurry material is characterized in that the fly ash slurry material is prepared from, by mass, 50-60% of fly ash, 1-3% of a dispersing agent, 0.2-0.4% of a stabilizer, 5-10% of cement, and the balance of water. The fly ash slurry material is prepared through the wet grinding process. The fly ash slurry material provided by the invention can equivalently replace 20-30% of cement in a cement-based material. Compared with the original cement, the fly ash slurry material disclosed by the invention has higher hydration degree and extremely high activity, and when the cement is partially replaced, the early strength can be obviously improved, and the grading can be optimized, so that the later strength is also improved to a certain extent. The preparation process is simple, the preparation process is easy to control, the energy consumption is low, the used raw materials are environment-friendly, harmful substances are not introduced and discharged, and the preparation method is easy to popularize and apply.

The invention provides a device for heating a traction battery and a method for operating a traction battery. The invention relates to a device (5) for heating a traction battery (2) of a vehicle, comprising: at least one rechargeable battery (6); at least one heating unit (7, 8, 9) that can be arranged at a part of the traction battery (2); at least one control unit (10) for controlling electricenergy supply from the rechargeable battery (6) to the heating unit (7, 8, 9); and at least one detection unit (11) connected with the control unit (10) for detecting at least one environmental parameter, at least one parameter of the traction battery (2) and / or at least one parameter of the rechargeable battery (6), wherein the control unit (10) controls the electric energy supply according to the parameters detected by the detection unit (11).

The invention discloses a device (401) for cleaning air in a blow molding machine which forms plastic preforms into plastic containers. The present invention arranges at least one gas treatment device (416) on at least one gas pipeline (402, 402a, 402b), which is a gas supply pipeline (402a) or a gas discharge pipeline of a blow molding station (8) (402b), the gas treatment device (416) capable of filtering gas in a sterile manner and / or capable of reducing the mass of oxidizing disinfectants / bactericides contained in the gas flowing through and / or flowing through.

The invention relates to a concrete curing device and a curing method for winter construction in a cold region. During winter construction in the cold region, a current concrete curing measure is highin energy consumption, has potential safety hazard, and is difficult to fit for concrete curing in winter in the cold region. The curing device is a rectangular frame body sequentially enclosed by four side plates, wherein concrete is filled in the rectangular frame body; a top plate and a bottom plate are horizontally arranged on the top part and the bottom part of the rectangular frame; a phase-change material layer is arranged on the outer wall of a template frame and is an electrified and heat-storage layer body; and a heat insulating layer is arranged on the outer wall of the phase-change material layer. According to the method provided by the invention, the phase-change material layer located between the template frame and the heat-insulating layer transfers heat to the concrete through the template frame, and continuously heats and cures the concrete through a repetitive heating and heat releasing way. The concrete curing device and the curing method for winter construction inthe cold region provided by the invention are used for concrete curing in winter site construction in the cold region.