42results about How to "Good construction technology" patented technology

The invention relates to a heat-resistant coating and a preparation method thereof. The heat-resistant coating includes two components of a heat-resistant coating A and a heat-resistant coating B. The two components are mixed according to a certain ratio before spraying, wherein The raw materials of the heat-resistant coating A include vulcanized silicone rubber, reinforcing fillers, high-temperature-resistant fillers, reinforcing fibers, heat-insulating fillers, crosslinking agents and diluents, and the raw materials of the heat-resistant coating B include catalysts and vinyl silicone oils. Through a large number of tests, the reasonable dosage of each component and the optimization of the components are given. The prepared coating has excellent heat resistance, and has the characteristics of high shear resistance and light weight. Problems of cracking, shedding and large ablation in the heat flux and strong aerodynamic shear environment ensure the good aerodynamic shape of the aircraft and provide technical support for the structural heat protection design of the new generation of missile weapons.

The invention relates to brucite fiber paste used for toughening cement-based materials and a preparation method thereof. The brucite fiber paste comprises natural brucite fibers, water reducing agents and water in a weight ratio of 1:(0.2-1.2):(0.15-0.75), wherein, the natural brucite fiber is of grade 6 or 7. The preparation method is characterized by adding the above raw materials into a forced mechanical mixer to be mixed and stirred for 5-15min and then placing the mixture for more than 24h in an airtight mode. The brucite fiber paste is used in cement concrete as a toughening material. The usage of the brucite fiber paste in the cement concrete is 5-15% of that of the cement. The brucite fiber paste and other raw materials are simultaneously added into the mixer while the cement concrete is blended, and are mixed for 2-4min. The brucite fiber paste is used for the concrete, enjoys good fiber split property, good construction technological property and low cost, is easily dispersed in the concrete, can avoid dust fly while the concrete is blended and ensures obvious fiber toughening effect.

The invention discloses a polyurethane damping floor material and a preparation method thereof. The material includes a two-layer structure of a damping layer and a constraining layer. Among them, the damping layer material is a two-component solvent-free polyurethane material, including A component and B component. A component is a polyurethane prepolymer with an isocyanate content of 3%~6%, and B component is a curing agent. The ingredients are chain extender, liquid flame retardant, functional filler, catalyst, defoamer, etc. Constraining layer material is polyaspartic acid ester type polyurethane material, including A component and B component, A component is HDI trimer, isocyanate content is 15%~20%, B component is curing agent , the main components are polyaspartate chain extender, liquid flame retardant, solid flame retardant, molecular sieve, defoamer, etc. The material can be widely used in vibration and noise reduction of home decoration, floors, workshops and other grounds. The material has good damping performance, flame retardant performance, wear resistance and construction process performance.

The invention discloses a reinforcing device and method used for constructing a concrete wall. The reinforcing device comprises a first tubular column, a second tubular column and a base plate connected to a foundation, wherein inner cavities for allowing anchor rods to insert are arranged in the first tubular column and the second tubular column; one end of the first tubular column and one end ofthe second tubular column are fixedly arranged at the two sides of the same surface of the base plate separately; the other end of the first tubular column and the other end of the second tubular column are provided with plug heads for sealing inlets of the inner cavities; and each of the first tubular column and the second tubular column extends towards the other side of the base plate from a fixed connecting side of the base plate, and is arranged in an inclined mode relative to the base plate. The invention further discloses a method of constructing the concrete wall by adopting the reinforcing device, and the method comprises steps of fixing the base plate, pouring the concrete wallboard, drilling, inserting anchor rods, and the like. The invention further discloses the concrete wall,the wall board of which is embedded with the reinforcing device. The reinforcing device has the advantages of improving bearing ability of the concrete wall, being convenient in construction, and thelike.

The invention discloses molded normal temperature curing urethane resin composition and a preparation method thereof. The compound comprises A type substance and B type substance which are packed independently, wherein the A type substance comprises prepolymer prepared by polymer polylol and isocyanate, carbon soot, filling, ultraviolet light absorbing agent, chemical inhibitor, wetting agent, deicer, foam suppressor, coupling agent and plasticizer; the B type substance is chain extendor; and the ratio of the quantity of active functional group substance of the B type substance to the quantity of active functional group substance of the A type substance is 0.8-1.0. The preparation method comprises the following steps: preparing and cooling the prepolymer capped by the isocyanate for reservation; preparing the A type substance; directly packing the chain extendor or packing the chain extendor after being diluted to be used as the B type substance; evenly mixing the measured A and B types of substances and maintaining the mixture under normal temperature to obtain the molded normal temperature curing urethane resin composition. The molded normal temperature curing urethane resin composition has good constructional processing property and is easy and convenient to prepare.

A structural system and construction method of an integrated flat-cavity pipeline for oil and gas multiphase transportation, relating to the technical field of pipelines, which is formed by connecting two pipelines through GFRP anti-buckling energy-dissipating dampers, and the two pipelines are arranged side by side in parallel, and each pipeline includes Pipeline monomer and integral joint, the pipeline monomer includes outer GFRP round pipe, inner GFRP round pipe and self-compacting fine stone concrete layer, bolt holes are provided at both ends of the pipe monomer; the outer wall of the outer GFRP round pipe There are reserved bolt holes for the outer GFRP round pipe; the two pipeline monomers are connected by an integral node, and the integral node is connected with the bolt holes at the ends of the two pipeline monomers through high-strength bolts. There are concrete pouring holes and air vents, and the concrete pouring holes and air vents are distributed at intervals. The structure system and construction method of the integrated flat cavity pipeline for oil and gas multiphase transportation solve the problems of small diameter, poor stability and impermeability of traditional pipelines.