7results about How to "Flexible construction methods" patented technology

The invention relates to the technical field of epoxy hybrid new materials, and discloses a high-flexibility epoxy sealant and a preparation method thereof.The sealant is composed of a component A and a component B. The component A is prepared from, by volume, 60-100 parts of silane modified polyether polymer, 0-20 parts of amine curing agent, 0-10 parts of thixotropic agent, 0-5 parts of ultraviolet absorbent, 0-5 parts of dewatering agent and 0-2 parts of catalyst; the component B comprises 60-100 parts of epoxy resin, 0-10 parts of thixotropic agent, 0-30 parts of toner, 0-20 parts of filler and 0-5 parts of diluent. Compared with a common sealant, the MS epoxy hybrid sealant has better bonding universality and excellent ultraviolet resistance and weather resistance, the bonding area is wider due to strong polar groups in molecules, the MS epoxy hybrid sealant can be normally cured in a humid environment, the construction environment is not limited, and the MS epoxy hybrid sealant has practical and practical significance to a certain extent.

The invention discloses a method and a system for determining a formula of a high-ductility composite material based on lake and reservoir deposits, a product and a preparation method of the product, and belongs to the technical fields of water conservancy and hydropower, transportation and construction and building materials. The determination system comprises an acquisition module for acquiring particle distribution characteristics of a lake and reservoir sludge-red mud-steel slag modified mixture, blast furnace mineral powder, nano SiO2, cement and lake and reservoir superfine silt; the first determination module is used for determining a formula optimization model of the mixed powder according to the obtained particle distribution characteristics of the lake and reservoir sludge-red mud-steel slag modified mixture, the blast furnace mineral powder, the nano SiO2, the cement and the lake and reservoir superfine silt; the formula optimization model of the mixed powder comprises a first objective function and a first constraint condition; and the second determination module is used for determining the formula of the high-ductility composite material according to the formula optimization model of the mixed powder and the basic model of the auxiliary agent. The system is adopted to determine an optimal formula, the hydraulic high-ductility composite material based on the lake and reservoir deposits is prepared, the lake and reservoir deposits are utilized, and the prepared composite material is good in deformation performance and high in crack resistance.

The invention discloses a water-based long-acting super-hydrophobic coating and a preparation method thereof, and belongs to the technical field of surface functional materials and coatings. The hydrophobic coating comprises modified hydrophobic particles, an amphiphilic water-based binder, an auxiliary agent and a water-based dispersion medium, wherein the modified hydrophobic particles are inorganic or organic-inorganic composite micro-nano particles with hydrophobic low-surface-energy groups and hydrophilic or reactive functional groups on the surfaces at the same time, and the amphiphilic aqueous binder is an aqueous polymer material containing hydrophilic chain segments and hydrophobic chain segments at the same time. Stable dispersion of hydrophobic particles in a water phase is achieved, a low-surface-energy chemical structure and a graded micro-nano rough interface are synchronously constructed after film forming, the static water contact angle of the coating is not smaller than 150 degrees, the rolling angle is not larger than 10 degrees, and the coating has high adhesive force, excellent weather resistance and long-acting super-hydrophobic performance, is environmentally friendly and wide in applicable base material range and is suitable for large-scale production. The paint can be used for waterproof, antifouling, anti-icing, anti-corrosion and other self-cleaning surfaces.

The invention discloses a coal seam permeability increasing type water injection method, and belongs to the technical field of coal mining. The method comprises the steps of drilling construction, primary gas extraction, acid liquid pressure operation, alkali liquid pressure operation, secondary gas extraction, drilling flushing operation and surfactant solution injection operation. According to the method, based on the advantages and disadvantages of a water injection source and drilling selection, the water injection source and the drilling selection are innovatively combined, mine water subjected to softening treatment is used, a synergistic surfactant is added, intermittent circulating water injection is adopted, the wettability of a coal seam can be improved, and the coal seam quality is improved. The pressure of part of water-deficient areas can be effectively relieved, and the utilization rate of water resources is increased. According to the method, the anti-reflection drill holes are selected, on one hand, the gas extraction rate before water injection can be improved, on the other hand, construction is flexible, and the coal seam permeability can be improved so that water can be more evenly injected into the coal seam.

The application discloses a kind of multifunctional composite modified water-based paint and preparation method thereof, belong to water-based paint technical field.The paint uses two-component system, A component is core film-forming phase, with organic silicon modified epoxy resin and acrylic modified polyurethane resin as composite base material, compound mesoporous metal oxide-aerogel composite filler, modified antirust pigment and functional additive;B component is cashew nut shell oil modified phenolic amine curing agent, by accurately controlling the proportion of two components and reaction condition, realize the synergistic promotion of coating comprehensive performance.The paint VOC content≤30g / L, 18-22 minutes surface dry at room temperature, neutral salt fog resistance can reach 720 hours or more, near-infrared reflectance≥0.85, while having excellent wear resistance, stain resistance and substrate adhesion, can be widely used in building exterior wall, galvanized member, industrial floor and other multi-scene protection and functional decoration, solve the technical pain point that existing water-based paint single function highlights but comprehensive performance is insufficient, with environmental protection and practicality.

The invention provides a partition wall keel and a partition wall. The partition wall keel comprises a middle structure part and side structure parts located on the two sides of the middle structure part correspondingly. Wherein the middle structure part comprises a middle plate body and two inner connecting plates, the two inner connecting plates are connected with the two ends of the middle plate body respectively and face the two opposite sides of the middle plate body respectively, each inner connecting plate is perpendicular to the middle plate body and forms an L-shaped structure with the middle plate body, and the L-shaped structures are arranged to be used for installing a middle wall plate; when the middle wall plate is installed, the end of the middle wall plate abuts against the L-shaped structure and is fixed to the inner connecting plate of the L-shaped structure. The side structure part on each side comprises an outer connecting plate parallel to the inner connecting plate and a connecting structure connecting the inner connecting plate and the outer connecting plate, and the outer connecting plate is arranged to install an outer wall plate on the outer side surface. According to the scheme, the partition wall has the advantages of being good in sound insulation performance, flexible to build, low in building cost and the like.

The application discloses a three-stage stress construction method of a composite beam structure and the composite beam structure, and belongs to the technical field of fabricated building structures. The composite beam structure comprises a prefabricated beam, a plurality of anchoring members, a composite bottom plate and a composite cast-in-place layer, the prefabricated beam is installed on a supporting structure; the plurality of anchoring members are arranged at intervals along the length direction of the prefabricated beam; the composite bottom plate is laid on the prefabricated beam, and a through hole is arranged at the position corresponding to the anchoring member, the through hole is filled with an anchoring filler, and the anchoring member is anchored and connected with the composite bottom plate through the anchoring filler to form a two-stage collaborative composite beam; the composite cast-in-place layer is formed on the composite bottom plate, and the prefabricated beam, the composite bottom plate and the composite cast-in-place layer form a three-stage collaborative composite beam through the anchoring members. The anchoring filler in the through hole is used to realize the collaborative stress of the plate-beam in the construction stage, the temporary support can be reduced, the construction mode is flexible, and the composite beam formed by the steel beam, the prefabricated reinforced concrete beam and the composite plate is suitable.