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14266results about "Building insulations" patented technology

Rubber powder grafted nano material composite modifier modified asphalt, preparation method thereof and asphalt mixture

The invention discloses rubber powder grafted nano material composite modifier modified asphalt, a preparation method thereof and an asphalt mixture, and belongs to the technical field of modified asphalt. The modified asphalt is prepared by modifying a carboxylated nano material grafted with aminated rubber powder. According to the invention, the rubber powder and the nano material are grafted, so that the advantages of the rubber powder and the nano material can be fully played, the high temperature, low temperature, water stability and other properties of asphalt and asphalt mixtures are remarkably improved, and a new solution is provided for high performance and sustainable development of asphalt pavements; therefore, the method has good application prospect and value in the field of road engineering.
Owner:CHINA MCC 2 GRP CO LTD +2

Fabricated building based on BIM technology and construction method

The invention discloses a fabricated building based on a BIM technology and a construction method, and relates to the technical field of fabricated buildings. The structure comprises a floor and a prefabricated wall body, multiple sets of embedded steel bars are arranged at the top of the floor, the outer sides of the embedded steel bars are sleeved with positioning assemblies, multiple sets of assembling holes are formed in the bottom of the prefabricated wall body, the inner diameter of each assembling hole is larger than the outer diameter of each embedded steel bar, and each positioning assembly comprises a positioning outer cylinder and an adjusting inner cylinder; and the adjusting inner cylinder is sleeved on the embedded steel bar. A limiting piece is controlled to slide downwards along a guide hole, at the moment, a telescopic rod can slide in the direction of a positioning outer cylinder, and along with continuous descending of a prefabricated wall, the lower half portion of the hinged position of a positioning supporting rod continuously swings inwards, the upper half portion of the hinged position of the positioning supporting rod swings outwards, and the telescopic rod slides into a sliding cavity; therefore, the gap can be adjusted while the position stability of the prefabricated wall is guaranteed, a cushion block does not need to be independently arranged, construction is easy, and the construction precision is high.
Owner:ZHEJIANG CENT SOUTH CONSTR GROUP

Roof mounting system

A roof mount assembly mounts a structure to a roof having a rafter and a substrate supported by the rafter. The roof mount assembly includes a piece of flashing positioned on the substrate. The flashing includes a first surface, a second surface opposite the first surface and an aperture extending through the flashing. A fastener extends through the flashing aperture. A bracket is connected to the flashing via the fastener, and the bracket is sized to support at least one roof-mounted structure on the roof. A seal is positioned between the flashing aperture and the fastener. The seal is sized to form a water-tight seal with the aperture to inhibit flow of fluid through the aperture. The seal includes a first portion and a second portion, in which the first portion is positioned to abut the flashing first surface and the second portion is positioned to extend through the aperture.
Owner:ENSTALL US INC

High-viscosity activated rubber powder grafted functionalized block copolymer composite modifier and preparation thereof, composite modified asphalt and preparation and application thereof

The invention discloses a high-viscosity activated rubber powder grafted functionalized block copolymer composite modifier and preparation thereof, composite modified asphalt and preparation and application thereof, and belongs to the technical field of modified asphalt. The composite modifier disclosed by the invention is formed by grafting catechol / polyamine modified aminated rubber powder and an epoxidized block copolymer. A catechol / polyamine group and an amino group are subjected to a condensation reaction to jointly modify the surface of the rubber powder, so that the surface of the rubber powder has rich functional groups and active sites, the rubber powder and an epoxidized block copolymer are subjected to a chemical crosslinking reaction in the later period, and the effect of enhancing the full performance of asphalt by the composite modifier is achieved; the problems that the composite modifier and the modified asphalt are prone to agglomeration, poor in compatibility and the like are solved. A self-healing mixture prepared from the composite modified asphalt and a self-healing material together has synergistic effects of the composite modified asphalt and the self-healing material, so that the pavement performance and the use quality are effectively improved, the service life of a road is prolonged, the energy loss is reduced, and the composite modified asphalt has application value in the field of roads.
Owner:SHANDONG EXPRESSWAY URBAN & RURAL DEV GRP CO LTD +1

Steel energy-saving curtain wall structure

The invention relates to a steel energy-saving curtain wall structure, and belongs to the technical field of curtain walls. The steel energy-saving curtain wall structure comprises a steel square tube, an aluminum-plastic co-extrusion frame, a nylon composite polyurethane foaming heat insulation core, an aluminum-plastic co-extrusion plate, a curtain wall plate and a foaming plastic heat insulation plate, and the aluminum-plastic co-extrusion frame is fixedly connected to one end of the steel square tube; in the environment below zero, extrusion force of water on nitrogen is increased by freezing, the nitrogen extrudes and expands the box-shaped air bag, the box-shaped air bag is kept firm all the time, the probability that the box-shaped air bag is affected by thermal expansion and cold contraction is effectively reduced, the sealing effect between the curtain wall plate and the mounting frame is further improved, and the service life of the curtain wall plate is prolonged. The heat insulation performance of the whole curtain wall can be improved, the heat load loss of temperature difference heat transfer and the load intensity of solar radiation are effectively reduced, and the building energy efficiency is improved.
Owner:HEBEI AOYI NEW MATERIAL CO LTD

High-performance green environment-friendly single-component polymer cement waterproof dry blend and preparation method thereof

The invention discloses a high-performance green and environment-friendly single-component polymer cement waterproof dry blend and a preparation method thereof, and relates to the technical field of building materials, the high-performance green and environment-friendly single-component polymer cement waterproof dry blend comprises the following components: an inorganic cementing material, latex powder, graded quartz sand, a functional filler, cellulose ether, an organic silicon defoamer, a polycarboxylic acid water reducer and compound fibers; the functional filler is modified waste glass powder prepared through mechanical activation and silanization modification; the compound fiber is a mixture of modified glass fiber and modified polypropylene fiber; the preparation of the modified glass fiber comprises tannic acid and polyethyleneimine combined modification and graphene oxide modification, and the preparation of the modified polypropylene fiber comprises plasma activation. The polymer cement waterproof dry blend prepared by the method adopts the glass powder to replace natural mineral filler, is energy-saving and environment-friendly, and the cement matrix is modified by various fibers, so that the prepared polymer cement dry blend is excellent in comprehensive performance.
Owner:临海市忠信新型建材有限公司

Environment-friendly high-strength waterstop and preparation method thereof

The invention discloses an environment-friendly high-strength water-stop belt and a preparation method thereof, and relates to the technical field of high-molecular compound composition water-stop belts. The environment-friendly high-strength water-stop belt is prepared from the following components in parts by mass: 100 parts of ethylene propylene diene monomer, 40 to 70 parts of reinforcing filler, 10 to 25 parts of environment-friendly plasticizer, 1 to 5 parts of interface modifier, 1.5 to 3.5 parts of vulcanizing agent, 3 to 8 parts of active agent, 1 to 3 parts of anti-aging agent and 5 to 15 parts of flame retardant. White carbon black and calcium carbonate are adopted as reinforcing filler to replace traditional carbon black, and energy consumption and pollution emission in the production process are remarkably reduced. By optimizing the formula and the preparation process, the tensile strength, the elongation at break, the tearing strength and other mechanical properties of the waterstop are remarkably improved. Aluminum hydroxide is added as a flame retardant, absorbs heat during thermal decomposition and forms a barrier layer, so that oxygen is effectively diluted, and fire spreading is prevented.
Owner:YUYIN TECH CO LTD

Asphalt regenerant and preparation method thereof

The invention relates to the technical field of asphalt mixtures, and particularly discloses an asphalt regenerant and a preparation method thereof. The asphalt regenerant comprises the following raw materials in parts by weight: 40-60 parts of base oil, 10-15 parts of a styrene-butadiene-styrene block copolymer, 10-15 parts of microwave activated rubber powder, 5-8 parts of an antioxidant, 10-20 parts of a penetration enhancer and 3-8 parts of a stabilizer, the base oil is at least one of bio-oil and vegetable oil; the bio-oil and the vegetable oil are used for improving the flowability of the regenerant, the regenerant can better permeate into a microporous structure of aged asphalt, and the styrene-butadiene-styrene block copolymer and the microwave activated rubber powder are combined, so that the viscoelasticity and the deformation resistance of the asphalt can be improved; the recovery capability of the regenerant on asphalt with different aging degrees is improved.
Owner:SHANDONG GAOSU LOAD & BRIDGE MAINTENANCE CO LTD

Construction technology and construction equipment for green building outer wall with waterproof effect

The invention discloses a construction technology and construction equipment for a green building outer wall with a waterproof effect. The construction technology comprises the following steps that S1, a coating which is green, environmentally friendly, high in adhesion and good in waterproof, mildew-proof and anti-cracking effect is selected; s2, special building outer wall construction equipment and a coating spraying device are selected, and the building outer wall construction equipment is installed on a building facility top plate; the building outer wall construction equipment comprises a hanging basket, a steel wire rope used for hanging the hanging basket, a winding assembly used for controlling winding of the steel wire rope and a stabilizing assembly used for maintaining stable lifting of the hanging basket. And S3, a worker stands in the hanging basket, the winding assembly controls the hanging basket to ascend and descend, the coating can be evenly sprayed to the building outer wall through the coating spraying device, and the building outer wall has the good waterproof, mildewproof and anti-cracking effects. The stability of the winding assembly in the lifting process of the hanging basket can be kept, and the coating spraying effect is improved.
Owner:HANGZHOU HENGTAI CONSTR ENG CO LTD

Connecting device for deformation joint at civil engineering structural plate and using method of connecting device

The invention relates to the technical field of civil engineering structure plate deformation joint connection, and discloses a civil engineering structure plate deformation joint connecting device and a using method thereof.The civil engineering structure plate deformation joint connecting device comprises at least two adjacent concrete plates, and a deformation joint is arranged between the concrete plates; the elastic rubber belt is arranged in the deformation joint, and the elastic rubber belt is arranged in the length direction of the deformation joint and used for connecting the adjacent concrete slabs and providing telescopic connection to adapt to thermal expansion and cold contraction or other deformation of the concrete slabs; the supporting structures are located on the two sides of the elastic rubber belt, and each supporting structure comprises a first supporting plate and a second supporting plate. The elastic rubber belts are arranged in the length direction of the deformation joint, flexible connection can be provided between the concrete slabs, thermal expansion and cold contraction or other displacement deformation of the concrete slabs caused by temperature changes and foundation settlement are effectively absorbed through the design, and therefore the situation that the concrete slabs crack or are unstable in structure is avoided.
Owner:POWERCHINA JIANGXI ELECTRIC POWER ENGINEERING CO LTD

Low-carbon, carbon-neutral, and carbon-negative asphalt composites using functionalized biochar

Low-carbon, carbon-neutral, and carbon-negative asphalt composites are disclosed. The composites comprise an asphalt binder and a functionalized biochar incorporated as a partial replacement for the binder and / or mineral filler. The biochar is physically, chemically, or mineralogically modified to enhance dispersion, interfacial bonding, mechanical performance, and carbon sequestration. The invention further includes methods for producing such composites, biochar-based additive compositions, and kits for practical implementation. Applications include asphalt pavements, waterproofing membranes, crack sealants, conductive deicing systems, and VOC-reducing asphalt mixtures. The resulting materials demonstrate improved durability, thermal and electrical properties, and significant reductions in greenhouse gas emissions.
Owner:CARBONSILVANUS CO +1

Ultra-long concrete post-cast strip structure and manufacturing method

The invention relates to the technical field of concrete structure construction, and discloses a super-long concrete post-cast strip structure and a manufacturing method.The structure comprises an interface treatment layer, a fiber grid layer, a micro-expansion concrete layer and a steel fiber protection layer which are sequentially arranged from bottom to top, and the interface treatment layer is used for providing combination transition of new concrete and old concrete; the fiber grid layer is used for achieving deformation constraint and stress transfer, the micro-expansion concrete layer is used for forming an autonomous compensation deformation area, and the steel fiber protection layer is used for providing final structure protection and load distribution. The interface treatment layer is a concrete base surface treated by high-pressure water jet, and is coated with a silane-based interface treatment agent. The bonding strength of new concrete and old concrete is enhanced through the interface treatment layer, the fiber grid layer provides effective deformation constraint, the micro-expansion layer achieves automatic shrinkage compensation, the steel fiber layer controls crack development, the layers are matched with one another to form a complete anti-crack system, the problem that the anti-crack performance of a traditional post-cast strip is insufficient is solved, and the overall anti-crack performance is improved.
Owner:FUJIAN ZHUOYUE CONSTR ENG DEV CO LTD

Self-repairing high-energy-storage ice-snow-resistant double-layer composite microcapsule suitable for asphalt surface layer and preparation method and application thereof

The invention discloses a self-repairing high-energy-storage ice-snow-resistant double-layer composite microcapsule suitable for an asphalt surface layer and a preparation method and application thereof, and relates to a microcapsule preparation method and application thereof. The invention aims to solve the technical problems of poor core material release and self-healing effects, unstable shell wall material, low heat conductivity, easy leakage and single function of the existing self-repairing microcapsule for the asphalt pavement. The double-layer composite microcapsule is sequentially composed of an inner phase change microcapsule core, an inner phase change microcapsule shell, an outer self-repairing microcapsule core and an outer self-repairing microcapsule shell from inside to outside. Preparing an internal phase change microcapsule core from n-caprylic acid and tetradecane; preparing an internal phase change microcapsule shell by using a carbon nano tube and a double polymer; preparing an external self-repairing microcapsule core from bio-oil and a carbon nanotube; the outer self-repairing microcapsule shell is prepared from the carbon nano tube and the double polymer. Compared with a common asphalt pavement, the healing index of the surface layer of the asphalt pavement prepared from the double-layer composite microcapsule is improved by 8.1%-26.3%. The method can be used in highway fields.
Owner:HARBIN INST OF TECH

Method of manufacturing a biochar aggregate and biochar aggregate material obtained

The present invention relates to a method of manufacturing a biochar aggregate comprising the steps of: (i) mixing biochar and at least one binder to form a first composition; (ii) optionally providing a second composition comprising water; (ill) optionally mixing together the first and second compositions to form a pre-mixture; and (iv) agglomerating the first composition or, if present, the pre-mixture to form the biochar aggregate.
Owner:LOW CARBON MATERIALS LTD

Fabricated ALC light wallboard and mounting method thereof

The invention relates to the technical field of building materials, in particular to a fabricated ALC light wallboard and a mounting method thereof.The fabricated ALC light wallboard comprises a bottom support unit arranged on the ground, the bottom support unit comprises a bottom support frame arranged on the ground, the bottom support frame is of a U-shaped structure with an upward opening, and a plurality of clamping parts are mounted on the front side wall and the rear side wall of the bottom support frame; the assembly type ALC light wallboard further comprises a plurality of wallboard units, and the wallboard units are evenly distributed on the bottom support unit. According to the wallboard bodies, the clamping protrusions are matched with the clamping grooves, the elastic clamping structures of the buckling parts and sealant are combined, the adjacent wallboard bodies can be rapidly connected, smearing of a traditional binder and waiting for solidification are not needed, positioning installation of the bottom supporting units and the top supporting parts is completed through preset drilled holes and standardized connecting pieces, and the installation efficiency is greatly improved. And the limiting plate and the back shore frame are matched to synchronously limit the installed wallboard body, repeated adjustment is avoided, and the overall construction efficiency is improved.
Owner:XIANYANG JINGWEI INVESTMENT CO LTD +1

Double-network modified asphalt and preparation method thereof

The invention discloses double-network modified asphalt and a preparation method thereof, which are characterized in that self-healing mechanism research is carried out on the basis of hydrogen bond-DA double bond asphalt, and the self-healing mechanism is ascertained in multiple scales. The method comprises the following steps: firstly, carrying out a blank experiment on dual-network asphalt by adopting a force-measuring ductility instrument to compare mechanical property changes under different double bond contents; secondly, performing hydrogen bond and DA bond crosslinking analysis on the asphalt sample through Fourier infrared spectroscopy to ensure double-bond double-network synthesis; and finally, verifying the rheological property of the dual-network asphalt by using a differential scanning calorimeter. The research result can play a certain guiding role in deeply exploring the self-healing capability of the asphalt material and expanding the application of the asphalt material.
Owner:CHANGSHA UNIVERSITY OF SCIENCE AND TECHNOLOGY

High-rubber regenerated composite SBS modified asphalt

The invention relates to high-rubber regenerated composite SBS modified asphalt, and relates to the technical field of asphalt, and the high-rubber regenerated composite SBS modified asphalt comprises the following components by mass: 23-27 parts of modified desulfurized rubber powder, 4-5 parts of modified SBS, 0.5-1 part of a stabilizer, 2-3 parts of rubber oil, 58-62 parts of matrix asphalt, 2-3 parts of a compatibilizer, and 5-8 parts of a modified nano filler. The modified asphalt has the effect of improving the compatibility among the rubber powder, the SBS and the matrix asphalt, a polymer network structure with good stability is formed, and the low-temperature anti-cracking performance, the high-temperature anti-rutting performance and the waterproof performance of the modified asphalt are effectively improved.
Owner:JIANGSU ZENGGUANG COMPOSITE MATERIAL TECH

Connecting joint combination structure of modular building

The invention discloses a connection node combination structure of a modular building. The connection node combination structure comprises two lower module frame columns arranged side by side at an interval, two upper module frame columns arranged at the tops of the two lower module frame columns correspondingly, and upper and lower module connection plates connected between the two upper module frame columns and the two lower module frame columns. A lower module top frame beam is arranged at the top of one side of the lower module frame column; an upper module bottom frame beam is arranged at the top of one side, close to the lower module top frame beam, of the upper module frame column; a first slurry blocking structure is arranged between the two upper module bottom frame beams, and a second slurry blocking structure is arranged between the two lower module top frame beams; and a third slurry blocking structure is arranged between the upper module bottom frame beam and the corresponding lower module top frame beam. Gaps between beams are filled through the first slurry blocking structures, the second slurry blocking structures and the third slurry blocking structures, the overall performance of the structure is improved, and the problems of cold bridges, fire prevention, wind prevention and insect prevention existing between modules of the connection joint are effectively solved.
Owner:CHINA CONSTR SCI & IND CORP LTD +1

Three-dimensional adjustable hyperbolic special-shaped GRC curtain wall system

The invention relates to a three-dimensional adjustable hyperbolic special-shaped GRC curtain wall system, and belongs to the technical field of curtain walls. The three-dimensional adjustable hyperbolic special-shaped GRC curtain wall system comprises a keel frame, a curtain wall plate and a connecting cross rod, the connecting cross rod is fixedly connected to the end, facing the keel frame, of the curtain wall plate, and the surface of the connecting cross rod is sleeved with a connecting component in threaded connection with the keel frame; the connecting component comprises a first locking assembly in threaded connection with the keel frame, the top of the first locking assembly is fixedly connected with a depth adjusting assembly, and the top of the depth adjusting assembly is fixedly connected with a lateral adjusting assembly; an installation worker can trigger the anti-loosening assembly to discharge the liquid sealant while installing the second locking assembly, and the connecting components are integrally bonded and fixed together, so that the problem that an existing hyperbolic special-shaped GRC curtain wall system with a three-dimensional adjustable function is prone to loosening and even falling off due to the influence of external force is solved.
Owner:中电建路桥集团有限公司 +1

Asphalt regenerant as well as preparation method and application thereof

The invention relates to the technical field of asphalt modifiers, and particularly discloses an asphalt regenerant as well as a preparation method and application thereof. The asphalt modifier comprises an oil phase, a polymer phase, a nano reinforced phase and a functional additive phase, wherein the oil phase comprises petrochemical oil and vegetable oil; the polymer phase comprises four-arm radiation star-shaped SBS and a rubber powder lysis solution; the nano reinforced phase comprises silane coupling agent modified nano montmorillonite and graphene; the functional additive phase comprises maleic anhydride grafted polyethylene and sucrose ester. The asphalt regenerant provided by the invention is suitable for various types of aged asphalt, in particular to aged polymer modified asphalt, each failure phase of the aged polymer modified asphalt is accurately repaired through a multi-phase synergistic mechanism, full-dimension regeneration of the aged polymer modified asphalt from a molecular scale to macroscopic performance is realized, and the asphalt regenerant has a wide application prospect. Excellent applicability and reliability are shown in regeneration of various types of aged asphalt, and a powerful guarantee is provided for high-quality implementation of road engineering.
Owner:BEIJING UNIV OF TECH

Regenerated rubber and plastic asphalt composite modifier based on shear force-temperature-interface modification as well as preparation method and application of regenerated rubber and plastic asphalt composite modifier

The invention relates to a regenerated rubber and plastic asphalt composite modifier based on shear force-temperature-interface modification as well as a preparation method and application thereof. The regenerated rubber and plastic asphalt composite modifier comprises 65-75 parts of tire rubber powder, 17-25 parts of polyethylene, 8-12 parts of aromatic oil and 0-2 parts of a silane coupling agent (not 0). All the raw materials are mixed and then added into a double-screw extruder, gradient temperature control is conducted through a feeding area, a plasticizing area and a homogenizing area, and finally granulation is conducted to obtain the regenerated rubber and plastic asphalt composite modifier. Compared with the prior art, the invention creatively utilizes the effects of double-screw shear force, high temperature, interface activation of the silane coupling agent, physical melting recombination and chemical interface activation, efficiently improves the integration and activation efficiency and effect of the tire rubber powder and polyethylene, and greatly improves the performance of the modified asphalt.
Owner:TONGJI UNIV

Water-activated cold patch asphalt, water-activated cold patch asphalt mixture and preparation method of water-activated cold patch asphalt mixture

ActiveCN119613982AImprove water damage resistancehigh strengthBuilding insulationsPondingPolymer science
The invention discloses water-activated cold patch asphalt, a water-activated cold patch asphalt mixture and a preparation method of the water-activated cold patch asphalt mixture. The asphalt comprises the following components in parts by weight: 100 parts of matrix asphalt, 20-30 parts of a bio-oil diluent, 30-45 parts of a polyurethane prepolymer and 1-5 parts of a dewatering agent. The polyurethane prepolymer comprises a main body polyurethane prepolymer and an organic silicon modified polyurethane prepolymer, and the organic silicon modified polyurethane prepolymer accounts for 20 to 30 weight percent of the main body polyurethane prepolymer. The organic silicon modified polyurethane prepolymer is prepared by carrying out hydrosilylation reaction on a polyurethane prepolymer containing a carbon-carbon double bond and a siloxane compound containing a silicon hydrogen group in a mass ratio of (15-25): 1. The cold patch asphalt mixture disclosed by the invention has excellent water damage resistance, and has relatively strong adaptability to severe environments such as rain, snow and accumulated water.
Owner:ORDOS LUTAI NEW MATERIALS TECHNOLOGY DEVELOPMENT CO LTD +1

Rubber modified asphalt product and preparation method thereof

The invention discloses a rubber modified asphalt product and a preparation method thereof. The rubber modified asphalt product comprises the following raw materials in parts by weight: 55-60 parts of base asphalt, 15-20 parts of rubber particles, 12-14 parts of a hybrid-based modified filler, 8-11 parts of aromatic oil, 5-8 parts of an additive, 2-3 parts of microcrystalline wax, 2-3 parts of a silane coupling agent and 2-4 parts of an antioxidant. According to the rubber modified asphalt product disclosed by the invention, the base asphalt is matched with the rubber particles, the aromatic oil, the microcrystalline wax, the silane coupling agent and the antioxidant to serve as functional aids, and meanwhile, the hybrid-based modified filler and the additive are added to serve as synergists, so that the base asphalt and the additive are coordinated to achieve a synergistic effect and jointly achieve a synergistic effect; the obtained modified asphalt product has harmonious improvement on elastic recovery, track dynamic stability and bending strain, and also has remarkable water resistance, ultraviolet resistance and cold and heat resistance stability effects.
Owner:XINJIANG UNIVERSITY

Heat-preservation and energy-saving column foundation heat-preservation joint of building

The utility model discloses a heat-preservation and energy-saving building column foundation heat-preservation joint which comprises an embedded part, a steel column and a high-strength heat-preservation cushion block. The embedded part comprises a positioning plate and a column foot anchor bolt and is embedded in the positioning plate when a reinforced concrete structural plate is poured, a higher part of the column foot anchor bolt is exposed according to the elevation of a steel column foot bottom plate, a high-strength heat preservation cushion block is arranged on the upper portion of the positioning plate, a hole is reserved in the position, corresponding to the column foot anchor bolt, of the high-strength heat preservation cushion block, and the column foot anchor bolt penetrates through the hole. A steel column base bottom plate penetrates through a column base anchor bolt to fall on the high-strength heat preservation cushion block and is firmly connected with the column base anchor bolt through a nut, a steel cover plate is arranged on the periphery of the steel column, the steel cover plate and the ground surface layer are located on the same horizontal plane, and the space between the steel cover plate and the steel column base bottom plate is filled with foaming polyurethane. On the premise that the structure bearing requirement is met, cold (heat) breaking is conducted on the column foundation part, a heat preservation surface layer does not need to be additionally adopted to wrap a building inner structure column (steel column), the size of the built building inner structure column is appropriate, and building space does not need to be additionally occupied.
Owner:NANJING YANGTZE RIVER URBAN AGCHITECTURAL DESIGN

High-RAP-mixing-amount cold-mixed asphalt regenerant and preparation method thereof

The invention discloses a high-RAP-doping-amount cold-mixed asphalt regenerant, and particularly relates to the technical field of asphalt regenerant, the high-RAP-doping-amount cold-mixed asphalt regenerant comprises the following raw materials: hydrogenated extract oil, acetyl tributyl citrate, a low-temperature penetrant, pre-swelling SEBS master batch, a crosslinking catalyst and a microcapsule antioxidant. Molecular-level branched-chain alkyl sodium sulfonate can be wedged into aged asphalt microcracks at the temperature of 65 DEG C, lost light components are balanced and supplemented through hydrogenated extract oil, an SEBS micro-crosslinking network forms an in-situ reinforcement effect at the temperature of 90 DEG C, the triple regeneration effect of regenerated asphalt is achieved, and the service life of the regenerated asphalt is prolonged. Nano-zinc oxide is treated by a silane coupling agent and then is modified by using methyl methacrylate and potassium persulfate, so that the nano-zinc oxide is coated with polymethyl methacrylate, the compatibility of the microcapsule antioxidant and the recycled asphalt can be improved, and the anti-aging performance of the recycled asphalt is improved.
Owner:HENAN JIUYI ENVIRONMENTAL PROTECTION TECH CO LTD

Modified asphalt waterproof coiled material construction laying device

The utility model discloses a modified asphalt waterproof coiled material construction laying device, and belongs to the technical field of coiled material laying, the modified asphalt waterproof coiled material construction laying device comprises a first mounting plate, a damping mechanism is arranged at the top end of the first mounting plate, a second mounting plate is fixedly mounted at the top end of the damping mechanism, and a laying mechanism is arranged on the top surface of the second mounting plate; and a motor protection shell is fixedly mounted in the first mounting plate and located on one side of the laying mechanism. A pushing handle is pushed to enable the laying mechanism to conduct laying, the fire spraying mechanism heats the laying mechanism, a first cleaning brush and a second cleaning brush are located in front of the laying mechanism, a motor drives a rotating shaft to rotate, and a first gear and a second gear are meshed to drive the rotating shaft to rotate; the first cleaning brush and the second cleaning brush rotate synchronously to clean the bottom surface, so that the ground to be paved by the paving mechanism can be cleaned, the cleanliness of the ground can be improved, the paving effect of the waterproof coiled material can be improved, and the waterproof effect after paving can be improved.
Owner:亳州建工有限公司

High-viscosity high-elasticity modified asphalt and preparation method thereof

The invention discloses high-viscosity and high-elasticity modified asphalt and a preparation method thereof, and belongs to the technical field of highway engineering. The high-viscosity and high-elasticity modified asphalt is prepared from the following raw materials in parts by weight: 100 parts of matrix asphalt, 4 to 5 parts of styrene-butadiene-styrene block copolymer, 1 to 2 parts of polypropylene particles, 1 to 2 parts of TMC modifier, 1.5 to 3 parts of compatilizer, 0.5 to 1.5 parts of amide wax, 0.3 to 0.5 part of nano montmorillonite, 0.5 to 1 part of flexibilizer and 0.1 to 0.2 part of stabilizer, wherein the TMC modifier is a mixture formed by mixing simethicone, amino silicon oil, lauryl phosphate and castor oil polyoxyethylene ether according to the mass ratio of 5: 3: 1: 1. The high-viscosity and high-elasticity modified asphalt provided by the invention is high in softening point, good in viscosity and elasticity recovery capability at 60 DEG C, good in water resistance, aging resistance, weather resistance and high-temperature stability, and small in kinematic viscosity at 170 DEG C. The high-viscosity and high-elasticity modified asphalt provided by the invention is good in construction workability, and is beneficial to prolonging the service life of an asphalt pavement.
Owner:Jiangxi Jiaotong Maintenance Technology Group Co., Ltd.

Module cabin structure capable of being assembled and expanded

The module cabin structure capable of being assembled and expanded comprises a structural frame and wall surfaces, the wall surfaces comprise a standard wall, a window wall and a door wall, the length-width-height ratio of the structural frame is 2: 1: 1, the standard wall, the window wall and the door wall are the same in size, the wall surfaces and the structural frame are welded to form a closed space, a plurality of connecting joints are arranged on the top of the structural frame, and the connecting joints are connected with the structural frame. The module cabin structure is spliced based on the connecting nodes, and at least one wall face and the structural frame are detachably installed. By means of the design of the structural frame with the standardized size and the detachable wall faces, the sealing structure and the connecting joints are combined, the problems that the transportation size is limited, the single capacity is insufficient, and the multi-cabin-body cooperation efficiency is low are solved, and the advantages of improving the sealing performance, enhancing the connecting stability and facilitating expansion and splicing are achieved.
Owner:CHINA CONSTR THIRD ENG BUREAU GRP CO LTD +2