33results about How to "Meet the requirements of on-site construction" patented technology

The invention discloses an anti-aqueous dispersion synchronous grouting material with large specific gravity and low consistence. The anti-aqueous dispersion synchronous grouting material consists of the following components in parts by weight: 100 parts of coal ash, 10-30 parts of slaked lime, 5-20 parts of cement, 10-50 parts of phosphorus gypsum, 0-200 parts of machine-made sand, 200-400 parts of shield mud and sand, 0.1-0.5 part of a water reducing agent, 0.05-0.2 part of a thickening agent and 80-120 parts of water. The shield mud and sand is used for replacing river sand and bentonite in a traditional grouting material, and the shield mud and sand and machine-made sand are taken as fine aggregates, so that the problem of resource shortage for natural sand is solved; moreover, the coal ash discharged at a power station and the phosphorus gypsum produced at a phosphorus chemical plant are reasonably utilized, so that the resource utilization of industrial waste is realized. The grouting material has the characteristics of good filling property, long castable time, large specific gravity, low consistence, anti-aqueous dispersion performance, segment floating prevention and the like, is prominent in environmental protection performance and low in cost, and can be widely applied to the shield segment grouting engineering and the like.

The invention discloses a construction method of red mud-based cast-in-place light soil. The construction method comprises the following steps: 1) dividing a construction site into a plurality of working areas by using templates; 2) mixing the red mud slurry with an excitant to obtain red mud slurry; 3) foaming the foaming agent solution by a foaming machine to obtain foam; 4) mixing the red mud slurry obtained in the step 2) with the foam obtained in the step 3) to obtain red mud-based foam slurry; and 5) conveying the red mud-based foam slurry obtained in the step 4) to the working area in the step 1), pouring, molding to obtain the red mud-based cast-in-place light soil, and curing. The red mud-based cast-in-place light soil can meet the strength requirement of the light soil, protect the environment and save the cost. When the red mud-based cast-in-place light soil is adopted for construction, very simple, convenient and efficient continuous pouring can be carried out, and the pouring quality of the red mud-based cast-in-place light soil meets the requirements of field construction.

The invention discloses a construction method of a cementing material based on slag in highway high fill. The construction method comprises the following steps: 1) construction site preparation; 2) cement slurry preparation; 3) foam preparation; 4) foam concrete preparation; 5) foam concrete casting; 6) foam concrete curing. The invention provides a construction process of cast-in-place foam concrete utilizing a large amount of blast furnace slag, which is used in the construction of a highway high fill project and can perform very simple, convenient and efficient continuous casting, and the casting quality meets the requirements of site construction. As a large amount of solid waste blast furnace slag and fly ash are adopted in slurry for the construction of the highway high fill project,the consumption of the cement is greatly reduced, so that the construction process is more energy-saving and environmentally-friendly, and the sustainable development of society is facilitated.

The invention discloses a construction method of an air coating material with an additionally-added synergist in a road. The construction method includes the following steps of (1) construction site preparation, (2) concrete synergist preparation, (3) concrete slurry preparation, (4) foam preparation, (5) foam concrete preparation, (6) foam concrete pouring, and (7) foam concrete curing. By the adoption of the construction method of the air coating material with the additionally-added synergist in the road, the use amount of cement can be reduced, the hydration degree of cement minerals is increased, the number of gels is increased through promotion of hydration of the minerals difficult to hydrate, and the strength of foam concrete is improved. Meanwhile, by the adoption of a constructionprocess of the cast-in-place foam concrete, continuous pouring can be simply, conveniently and efficiently achieved, and the pouring quality of the cast-in-place foam concrete meets the site construction requirements.

The invention discloses a temperature-resistant and salt-resistant multi-component polymerization thickening agent and a preparation method thereof. The preparation method of the thickening agent comprises the following steps: uniformly mixing acrylamide (AM), sodium 2-acrylamide-2-methylpropanesulfonate (AMPS), vinyl pyrrolidone (NVP) and acryloylmorpholine (ACMO) according to a certain proportion, adding a proper amount of a redox initiator and a water-soluble azo initiator, carrying out a stirring reaction at a constant temperature of 60-90 DEG C under an anaerobic condition, carrying out solvent sedimentation, conducting cooling and solidification, naturally conducting airing, and then conducting shearing and crushing to obtain the temperature-resistant and salt-resistant multi-component polymerization thickening agent. The temperature-resistant and salt-resistant multi-component polymerization thickening agent has the advantages of good salt resistance, hydrolysis resistance, temperature resistance, shearing resistance and the like.

The invention discloses a shale gas well cementation and oil displacement type flushing agent. The shale gas well cementation and oil displacement type flushing agent comprises the following components in parts by weight: 100 parts of water, 24-48 parts of an emulsifier, 12-24 parts of a cosolvent and 6-12 parts of a hydration inhibitor, wherein the emulsifying agent comprises at least one of cetostearyl alcohol polyoxyethylene ether, propylene glycol block polyether and fatty alcohol-polyoxyethylene ether potassium phosphate; the cosolvent is prepared from isomeric alcohol polyoxyethylene ether and oleic acid polyoxyethylene ester in a weight ratio of (3-4): (1-2); the hydration inhibitor comprises polyethylene glycol, glucoside and/or oleyl alcohol polyoxyethylene ether. The shale gas well cementation and oil displacement type flushing agent can effectively displace high-density oil-based drilling fluid, interface wettability reversal is achieved, reservoir stability is guaranteed, and annulus well cementation quality is improved.

The invention discloses a construction method of a cementing material based on iron tailings in a highway high embankment. The construction method includes the steps: 1) construction site preparation;2) cement slurry preparation; 3) foam preparation; 4) foam concrete preparation; 5) foam concrete pouring; 6) foam concrete curing. The invention provides a construction process of cast-in-situ foamconcrete based on the iron tailings. The concrete is used for the highway high embankment and can be simply, conveniently, efficiently and continuously cast, and casting quality meets the requirementsof site construction. A large number of solid waste iron tailings are used for replacing cement in the construction method of the highway high embankment, the solid waste is recycled, the manufacturing cost of a highway is saved, and sustainable development is facilitated.

The invention discloses an adjustable cutting device for building construction, and relates to the technical field of cutting devices for building construction. The adjustable cutting device comprisesa box body and a sliding plate, the bottom of the box body is of an open type structure, the sliding plate is fixedly connected to the lower portion of the box body, an operation opening is formed inthe right side wall of the box body, a cutter outlet groove is formed in the sliding plate, and a mounting frame is rotatably hinged to the upper portion of the sliding plate; and a cutter retractingmechanism is fixedly connected to the mounting frame, and angle adjusting mechanisms are arranged at the two sides of the mounting frame. Compared with the prior art, the adjustable cutting device has the beneficial effects that the position of a sliding block is adjusted through a manual lead screw, so that a mounting plate rotates, a rotating shaft slides in a second arc-shaped groove, a cutterwheel extends out of a cutter outlet groove under the action of the cutter retracting mechanism, the distance of the cutter wheel extending out of the sliding plate can be adjusted according to requirements by means of the manner, and the cutting depth can be adjusted; and after the device is used, the knife wheel is retracted through the knife retracting mechanism, the device is more convenientto store, and the device with the knife wheel capable of being hidden is safer.

The invention discloses a water-soluble temporary plugging agent suitable for secondary fracturing. The agent is prepared from the following raw material components in percentage by mass: 55-65% of polylactic acid, 20-25% of carboxymethyl guar gum, 10-15% of rubber powder, 3-8% of bentonite, and 0.5-3% of a fluorocarbon surfactant. The rubber powder is butyl rubber powder or high styrene styrene butadiene rubber powder. The preparation method of the water-soluble temporary plugging agent comprises the following steps: adding the polylactic acid into a decompression kettle, heating to 85-95 DEG C, preserving constant temperature, adding the carboxymethyl guar gum after the polylactic acid softens, and stirring and mixing evenly; adding the fluorocarbon surfactant into a mixed material, and mixing evenly; then adding the rubber powder and the bentonite, and stirring for reacting for 2 hours; cooling and solidifying after the reaction is completed, and smashing to obtain the water-soluble temporary plugging agent. Compared with a conventional temporary plugging agent of the same type, the water-soluble temporary plugging agent disclosed by the invention is higher in plugging strength, adhesion performance and suspension stability than the conventional temporary plugging agent, and the requirements of site construction can be met.