30results about How to "Self leveling" patented technology

The invention relates to a new maintenance material of pavement crack, comprising the raw materials according to weight part as follows: 100 parts of 107 base glue, 1-10 parts of cross linker, 1-5 parts of tackifier, 5-50 parts of plasticiser, 1-100 parts of reinforcing filler, 0.1-0.5 parts of catalyst. The preparation method of the material is as follows: putting dimethyl silicone polymer base glue, reinforcing filler, plasticizer, tackifier and cross linker into a vacuum kneader to be uniformly mixed, obtaining component A; uniformly mixing catalyst and cross linker, obtaining component B; mixing components A and B according to the proportion of 1: 0.01-0.03, obtaining the material. The material has good weather resistance, aging resistance, ultraviolet resistance and self-levelling performance; the material does not need heat construction, has good repairing function for the pavement crack; the preparation method is simple; the invention can be widely applied to repairing and maintaining crack on asphalt, cement concrete pavement and correlative building.

The invention belongs to the technical field of slope supporting, and discloses a novel anti-seismic retaining backfilling composite structure for solving the problems that an existing retaining structure is high in construction cost and prone to sedimentation, and potential safety hazards exist. The novel anti-seismic retaining backfilling composite structure comprises an L-shaped retaining wallarranged on a pile foundation. The retaining wall comprises a straight wall and a bottom plate arranged on the pile foundation. The straight wall and the bottom plate are connected together to form the L-shaped stop wall. The upper portion of the bottom plate is filled with a rubble layer. Cavities between the rubble layer and the slope body and between the straight wall and the slope body are filled with foam light concrete. The novel anti-seismic retaining backfilling composite structure has the beneficial effects that the stop wall settlement deformation is little, the wall lateral pressureis small, and the construction period is short.

A headlamp for automobiles with a movable reflector, comprising: a lamp body and a front lens for dividing a lamp chamber; a reflector housed in the lamp chamber and equipped with a light source; A dimming mechanism that can tiltably support the reflector. The dimming mechanism is composed of a dimming fulcrum, a dimming screw, and a nut member that is installed on the reflector and screwed with the dimming screw. The nut is guided by a sliding guide formed on the lamp body. The component is provided with a stress relief device with a spherical coupling structure at the mounting part of the nut component and the bracket. The ball part of the ball joint is formed on the body of the nut member on which the female thread part is formed, the slider supported by the slide guide is integrally formed on the side of the ball part, and the nut is supported by the ball housing part of the bearing attached to the bracket. The spherical part of the component. Therefore, it is possible to provide a movable reflector type automotive headlamp which reliably prevents reflector vibration, ensures smooth return of the dimming bolt, and has a simple reflector shape and mold structure for forming the reflector.

The invention discloses a transparent high-strength self-leveling methanol-removed single-component organic silica gel which is composed of the following raw materials in parts by weight: 100 parts of alkoxy-terminated polydimethylsiloxane, 0-30 parts of plasticizer, 10-17 parts of crosslinking agent, 3-7 parts of coupling agent, 10-20 parts of reinforcing filler, 0.5-2 parts of catalyst and 3-9 parts of hydroxy remover. The preparation method of the organic silica gel comprises the following steps: 1) adding the alkoxy-terminated polydimethylsiloxane, reinforcing filler, plasticizer and hydroxy remover into a planet stirrer, and stirring and mixing in a vacuum; 2) adding the crosslinking agent into the mixture obtained in the step (1), and dispersing and stirring in a vacuum; and 3) adding the coupling agent and catalyst, and dispersing and stirring in a vacuum. The organic silica gel product is neutral-curing, has the advantages of favorable yellowing resistance, no corrosivity to the substrate, high storage stability, excellent transparency and higher strength, and can implement self-leveling to satisfy the diversified demands of industrial gels.

The invention belongs to the technical field of building materials, and in particular relates to a high-strength and low-water-absorption cement substrate material slurry and a preparation method thereof. The slurry uses self-compacting active powder concrete technology to directly cast a plate with a thickness of several millimeters to more than ten millimeters. It is composed of cement, silica fume, quartz powder, sand, water reducing agent, anti-cracking agent and water in a certain proportion. to make. The present invention reduces water consumption by adopting a new type of water reducing agent and a reasonable proportion, so that the flow expansion of the prepared casting slurry can reach more than 255mm (the flow rate of the mortar jumping table is truncated and circular, and there is no vibration), and it can be directly casted. Plates with required thickness do not need vacuum dehydration and pressurization. The resulting board is dense, with a water absorption rate of less than 2%, which is much lower than that of various fiber-reinforced cement boards currently on the market (about 20%). The flexural strength can be adjusted by the content of reinforcing fibers, which can be higher than 15-25MPa. The raw materials used in the invention are all common industrial raw materials, which simplifies the production process, greatly reduces the production cost, improves the product quality and is widely used.

The invention relates to a concrete ingredient and fast hardening concrete prepared by mixing the concrete ingredient, which belong to the field of materials in construction engineering, and are mainly used in masonry or rush repair of the periphery of inspection wells on urban roads. The concrete ingredient includes sulfur aluminum cement, coarse aggregate, fine aggregate, a reinforcing material, an enhancing material, a coloring material, an expanding agent, a water reducing agent and an accelerating agent. In the concrete prepared by mixing the concrete ingredient, the weight ratio of the fast hardening concrete ingredient to water is 1:0.12-0.13. The concrete prepared by mixing the concrete ingredient has the properties of self-leveling, super early strength, high strength, micro expansion, resistance to shrinking, penetration, wear and ageing, and the like.

The invention relates to a new maintenance material of pavement crack, comprising the raw materials according to weight part as follows: 100 parts of 107 base glue, 1-10 parts of cross linker, 1-5 parts of tackifier, 5-50 parts of plasticiser, 1-100 parts of reinforcing filler, 0.1-0.5 parts of catalyst. The preparation method of the material is as follows: putting dimethyl silicone polymer base glue, reinforcing filler, plasticizer, tackifier and cross linker into a vacuum kneader to be uniformly mixed, obtaining component A; uniformly mixing catalyst and cross linker, obtaining component B;mixing components A and B according to the proportion of 1: 0.01-0.03, obtaining the material. The material has good weather resistance, aging resistance, ultraviolet resistance and self-levelling performance; the material does not need heat construction, has good repairing function for the pavement crack; the preparation method is simple; the invention can be widely applied to repairing and maintaining crack on asphalt, cement concrete pavement and correlative building.

The invention discloses a cementing agent for micro-fine-particle tailing cementing filling. The cementing agent is prepared in the mode that following components are matched, mixed and ground to powder with the specific area of 600 m<2> / kg-800 m<2> / kg, and comprises, by mass, 75%-85% of superfine slag powder, 6%-12% of activating agent, 0.5%-0.8% of activating accelerant, 0.3%-0.6% of accelerating agent, 0.1%-0.3% of pumping agent and 6.65%-12.5% of reinforcing agent. The superfine slag powder is the S105 grade, and the specific area of the superfine slag powder is larger than or equal to 600 m<2> / kg; the activating agent is a mixed compound of quick lime, sodium aluminate and sodium orthosilicate, the activating accelerant is sodium fluoride, the accelerating agent is a mixed compound of sodium thiocyanate and anhydrous calcium chloride, the pumping agent is a nonionic surfactant, and the reinforcing agent is a mixed compound of plaster stone, semi-hydrated gypsum, calcined gypsum and aluminum sulfate. The cementing agent has the advantages of being short in setting time, high in early strength and strength, low in cost, easy to convey and produce and simple in technology.

The invention provides an electric appliance with self-leveled ground feet and a leveling method. At least one of a plurality of ground feet which are arranged at the bottom of the electric appliance is a self-leveled ground foot; the self-leveled ground foot comprises a bracket, a worm rod, a worm wheel and an adjusting support rod; a driving device is adopted to drive the worm rod of the self-leveled ground foot to rotate; a clutch with adjustable friction is arranged between the driving device and the worm rod; the driving device is arranged inside an electric appliance casing; the worm rod and the worm wheel are rotationally mounted on the bracket; the worm rod and the worm wheel are matched to drive the worm wheel to rotate; an adjusting support rod is arranged inside a hole in the bracket in a penetration manner; teeth are arranged on the adjusting support rod and are meshed with teeth of the worm wheel; the worm wheel is matched with the adjusting support rod to drive the upright adjusting support rod to move upwards or downwards; the driving device is electrically connected with a controller of the electric appliance. The clutch is driven by the driving device, furthermore the worm rod of the self-leveled ground foot is driven to act till the friction piece of the clutch slides off, then automatic leveling can be achieved, the operation is simple and convenient, the time and the labor can be saved, the leveling precision is high, and the user experience can be improved.

The invention relates to the technical field of construction, and discloses a repairing agent dry mixture used for quick maintenance of cement pavement. The repairing agent dry mixture consists of 320-450 parts of Portland cement, 324-417 parts of graded river sand, 170-260 parts of graded crushed stone, 12.7-17 parts of silica fume, 3.2-4 parts by weight. 8 parts of fly ash, 0.1 to 2 parts of calcium formate, 0.2 to 7 parts of triisopropanolamine, 1.2 to 2.4 parts of sodium α-alkenyl sulfonate, 0.4 to 1.2 parts of polyvinyl alcohol and 1.2 to 2.4 parts of anhydrous chlorinated Calcium mixed composition, and after it is applied to maintenance methods including milling, slag removal, scrubbing, wetting, pouring cement mortar, paving repair agent and plastic film curing, it can not only reduce the demand for consumables and simplify the construction method Steps can also greatly shorten the time required for health preservation, which in turn can be beneficial to quickly complete maintenance tasks and realize the purpose of quickly restoring traffic, greatly facilitating people's travel and the development of national economic activities.

The present invention discloses high-strength grouting material containing ultra-fine powder and a method for producing the high-strength grouting material containing the ultra-fine powder, which comprises the components by weight: 15 to 21 percent of sulphoaluminate cement, 5 to 9 percent of ultra-fine inert powder, 6 to 10 percent of ultra-fine active powder, 0.1 to 0.4 percent of water-reducing agent,0.01 to 0.03 percent of thickening agent, 52 to 67 percent of building sand and 12 to 18 percent of mixing water. The present invention adopts the sulphoaluminate cement as the main gelled material to be mixed with appropriate ultra-fine powder materials as well as less organic compound, thereby being characterized in flat shift, vibro-free, early strength, high strength, micro inflation, abrasion resistance, good plasticity preservation and aging resistance as well as multiple use functions and simple operation and wide application.

The invention relates to the technical field of construction, and discloses a cement mortar dry mixture used for quick maintenance of cement pavement. The cement mortar dry mixture consists of 377-435 parts of Portland cement, 547-623 parts of graded river sand, 35-60 parts of stone powder, 27-32 parts of silicon powder, 10.6-12 parts Fly ash, 0.1-2 parts of calcium formate, 0.2-6 parts of triisopropanolamine, 1.1-3 parts of sodium α-olefin sulfonate, 0.6-2 parts of polyvinyl alcohol and 1.4-2.5 parts of anhydrous calcium chloride are mixed Composition, and after it is applied to maintenance methods including milling, slag removal, scrubbing, wetting, pouring cement mortar, paving repair agent and plastic film curing, it can replace cement slurry, only need to mix with appropriate amount of water After mixing, brush or scrape on the 5-7mm between the new and old concrete interfaces. The operation is simple and easy to master. It can effectively increase the interface bonding force, reduce the thickness and dosage of the upper repair material, and effectively ensure the effect of maintenance projects.

The invention relates to a high-strength color self-leveling mortar material and a preparation method and a construction method of the material. The product is powder formed by mixing a base slag cementing material and aggregate, wherein the aggregate is a mixture of machine-made sand particles, a composite additive and color powder; and the base slag cementing material is composed of 96.0-98.2% of slag powder, 1.0-1.5% of water reducer, 0.3-1.5% of redispersible rubber powder and 0.5-1.0% of basic powder particles. The color self-leveling mortar product prepared by the preparation method has lower cost, excellent mechanical properties and variable colors, and smooth and beautiful surfaces, can be widely applied to pavement of various industrial floors of industrial factory buildings, marketplaces, gymnasia, offices and the like, and can also be used as a leveling layer or decorating surface layer before floor fitment in households, buildings and villas.

The invention discloses a manufacturing method of a self-leveling mortar terrace, which comprises the following steps: step 1, preparing the following raw materials in parts by weight: 100-105 parts of epoxy resin, 10-15 parts of dibutyl phthalate, 60-65 parts of acetone, 8-10 parts of ethylenediamine and 60-65 parts of anionic waterborne polyurethane; the preparation method comprises the following steps: adding epoxy resin, dibutyl phthalate, acetone, ethidene diamine and anionic waterborne polyurethane into a reaction kettle, and stirring for 30-60 minutes under the conditions that the temperature in the reaction kettle is controlled to be 65-75 DEG C and the rotating speed is controlled to be 300-500 r / min, so as to obtain a coating A; according to the invention, the pH value is adjusted, so that the raw material of the self-leveling mortar layer can obtain very high strength in the early stage, the raw material of the self-leveling mortar layer is constructed on the asphalt closed base layer, is coated with paint for three times, and is matched with fine river sand, so that capillary pores in the surface of emulsified asphalt can be filled, the closed base layer is formed, and the problem of moisture regain is avoided.

The invention relates to a two-component low-toxicity flame-retardant epoxy-based joint mixture and relates to coatings for ship gutterways. The two-component low-toxicity flame-retardant epoxy-based joint mixture comprises a component A and a component B which are mixed in a weight ratio of 2 to 1, wherein the component A comprises, by weight, 100 parts of phosphorized epoxy resin, 40-60 parts of hydroxide, 40-60 parts of acid zinc compound, 3-5 parts of organosilicon coupling agent, 1-2 parts of highly-wear-resistant carbon black and 10-20 parts of precipitated white carbon; the component B comprises, by weight, 40-50 parts of epoxy-amine curing agent and 8-10 parts of DMP-30; the hydroxide is selected from one of aluminum hydroxide and magnesium hydroxide, and the acid zinc compound is one of zinc borate and zinc stannate. The two-component low-toxicity flame-retardant epoxy-based joint mixture is capable of meeting the performance requirements on joint mixtures for the ship gutterways and has the comprehensive advantages of low toxicity, flame retardance, resistance to seawater corrosion and self-leveling.