50results about "Building insulations" patented technology

An expansion joint seal system which includes intumescent to protect uncoated edges of substrates. A fire rated compressed expansion joint sealant is provided having an intumescent proximate, but below the water-resistant top of the fire-retardant foam, so that when exposed to fire, the intumescent expands to protect the exposed vertical surface of the adjacent concrete substrate. The end of the concrete is therefore protected in a manner which does not require joint overlap between the horizontal fire resistant coating and the compressible sealant.

The invention provides a novel method for preparing a latent nonionic self-emulsifying epoxy curing agent. The method comprises the following steps of: reacting long alkyl chain fatty amine with diglycidyl ether to prepare an addition product of which the middle part is connected with a long hydrophobic side chain and two ends are provided with epoxy groups; and reacting polyamine with a carbonyl compound to prepare an imine compound which contains secondary amine, and sealing the end to prepare the latent nonionic self-emulsifying epoxy curing agent. Under water environment, the imine structure in the curing agent hydrolyzes hydrophilic amino, and the curing agent contains the long hydrophobic alkyl chain, so the curing agent has the functions of emulsifying and curing an epoxy resin. The curing agent can be used for water-based epoxy emulsion coatings, water-based epoxy resin modified emulsified asphalt and cement and the like, and has excellent adhesion performance of ketimine on a wet surface. Due to the introduction of hydrophobic chains, the stability of the imine curing agent is improved in the water environment, and the performance of the curing agent in the aspect of wet surface or underwater adhesion can also be improved.

The invention provides an asphalt modified thermoplastic polyolefin water-proof coiled material and a preparation method thereof; the coiled material is characterized by consisting of an upper surface layer, a main body layer and a reinforcing layer; the upper surface layer is made from white or colored thermoplastic polyolefin with excellent ultraviolet radiation resistance, the main body layer is made from black asphalt modified thermoplastic polyolefin, and the reinforcing layer consists of a middle reinforcing layer and a surface lining layer which are arranged as required. The asphalt modified thermoplastic polyolefin water-proof coiled material has the advantages of good processing property, excellent mechanical property, high tension strength, good dimensional stability, strong puncture resistance, good ultraviolet radiation resistance, small specific gravity, capacity of realizing convenient seam suturing welding of the main body and recoverable tailing and excessive materials, and the like.

The invention discloses an asphalt regenerating agent with a modification function. The asphalt regenerating agent is prepared from the following components in parts by mass: 30-60 parts of light base oil, 20-35 parts of a modification functional component, 5-20 parts of a stabilizing balancing component, 2-15 parts of a penetration enhancing component, 2-10 parts of a dispersing component and 1-10 parts of a flow regulating component by mass. The asphalt regenerating agent has the advantages of improving the simplex component restoring mechanism of the conventional regenerating agent, integrating a regenerating process and a modification process, and on the basis that the ordinary regenerating agent restores the flexibility of aged asphalt, further improving the viscoelasticity and temperature stability of the asphalt, so that a new idea is provided for high-efficiency, recycling and large-scale application of waste asphalt concrete in China, and economic, environmental and social benefits are remarkable.

An exterior stucco wall construction comprising: a wall frame; sheathing attached to the outer side of the wall frame; a moisture collection channel mounted along a lower margin of the sheathing and having an inner flange, an outer flange, and a support floor extending therebetween, the collection channel further having a plurality of apertures arranged in spaced relation adjacent and along the inner flange; a vapor barrier attached to the sheathing and covering a portion of the upper flange of the collection channel; a moisture impervious board having an inner side provided with drain means to facilitate the downward drainage of moisture to a lower edge located within the collection channel and resting upon its support floor; lath wire secured over the outer side of the board; and, at least one coat of stucco applied over the lath wire.

The invention discloses a preparation method of durable modified asphalt. The method comprises the following steps: performing organic treatment on montmorillonite, pouring the montmorillonite and anintercalator into a flask, feeding a dispersing agent to perform dispersing in the flask, performing stirring and suction filtration on dispersive montmorillonite, so as to obtain a montmorillonite dispersion liquid, washing the montmorillonite dispersion liquid through deionized water and drying to accomplish the organic treatment on the montmorillonite; mixing SBS with asphalt, so as to obtain molten SBS modified asphalt, feeding the montmorillonite subjected to organic treatment and titanium dioxide into the molten SBS modified asphalt, stirring, so as to obtain a mixture, putting the mixture into a stirrer to stir the mixture, and ensuring that the temperature of stirring environment is 140 to 160 DEG C, so as to obtain the durable modified asphalt. According to the method, the durablemodified asphalt prepared from the titanium dioxide replacing nanometer materials is applied to pavement laying, the ageing resistance of pavement can be improved, during the preparation, the costs of the organic treatment on the montmorillonite and the adding design of elastomers are low.

The invention provides a rubber asphalt mixture with high-temperature storage stability and a preparation method thereof. 0.5-2% of azodiisobutyronitrile and/or a benzoyl peroxide chemical modifier is added into the rubber asphalt. The chemical modifier is a slow release type chemical modifier which is wrapped by a polymer, in order to realize slow release effect in the rubber asphalt. A special chemical modifier is added into the rubber asphalt mixture, so that the rubber powder can be fully swollen in asphalt, and the rubber powder is oxidized for better degradation. Stationary storage of the rubber asphalt can be carried out for 48 hours with a high temperature condition of 180 DEG C, obvious sedimentation of rubber powder does not happen, and the difference between upper and lower softening points in a separation test meets the index requirement of thermal storage stabilization technology of SBS modified asphalt in JTGF40-2004 technical standard.

A modified coal tar useful in roofing applications, containing coal tar, a nitrile butadiene rubber, and in some instances an effective amount of a plasticizer is prepared by heating the coal tar to a molten temperature, adding the rubber in powder form and agitating the material in a suitable high shear mixing apparatus until adequate phase inversion occurs between the polymer and the coal tar phase. After preparation, the material is cooled in containers until use, at which time it is heated to a flowable temperature and applied using a roofing mop or squeegee. Effective plasticizers include the alkyl esters of di-functional carboxylic acids, such as di-octyl adipate and di-octyl phthalate.

The invention relates to assembled building water prevention, in particular to an assembled concrete wall waterproof structure. A plurality of prefabricated plates spliced into a wall are included. Waterproof layers are arranged at the positions of transverse joints and vertical joints of the prefabricated plates. Each waterproof layer sequentially comprises a seal glue isolation layer and a sealglue layer from the interior of the corresponding joint to the exterior of the corresponding joint, wherein the seal glue isolation layer is composed of at least one flexible strip, the flexible stripis extruded by the inner wall of the corresponding joint and embedded in the corresponding joint and extends along the corresponding joint. The transverse joints are each of a reverse bridge structure. A waterproof layer is arranged between the first top end and the first bottom end. Cavities are reserved behind the seal glue isolation layers in the vertical joints, and a vertical water discharging channel is formed by the cavities. A gap gradually narrowed from exterior to interior is formed between the first bottom end and the first top end, wherein the first bottom end is obliquely arranged. According to the waterproof structure, later frequent maintenance is omitted, a large number of maintenance materials are saved, construction waste generation is reduced, and the requirements of existing assembled buildings for economy, environment protection and energy saving are well met.

The invention relates to the technical field of modified emulsified asphalt for road engineering, and particularly relates to modified emulsified asphalt for a superthin wearing course. The emulsified asphalt is prepared from the following components in percentage by weight: 45.0-68.0 percent of asphalt, 3.0-4.0 percent of an emulsifying agent, 0.25-0.45 percent of a cationic quick breaking emulsifying agent, 0.5-2.0 percent of a stabilizing agent, 1-5 percent of auxiliary and the balance of water. By adopting the scheme, the modified emulsified asphalt for a superthin wearing course is prepared, has a solid content of more than 67 percent, is quick in emulsion breaking speed, is capable of generating a relatively thick asphalt film after emulsion breaking, and has excellent adhesive performance and waterproofing performance, wherein the dynamic viscosity at 60 DEG C of evaporated residues of the emulsified asphalt is more than or equal to 1800Pa.s.

The invention discloses heat-resistant modified asphalt, which is prepared from the following raw materials in parts by weight: 140-160 parts of asphalt, 12-16 parts of furan resin, 3-7 parts of dioctyl phthalate, 1-3 parts of sugar alcohol, 2-5 parts of stearamide, 0.8-1.6 parts of mica powder, 0.5-1.2 parts of manufactured sand, 14-16 parts of silicone oil, 3-6 parts of a silane coupling agent, 1-5 parts of an anti-aging agent and 2-6 parts of heat-resistant additives. According to the heat-resistant modified asphalt disclosed by the invention, the performance of the asphalt under a high-temperature condition is improved due to addition of the heat-resistant additive; a mixture of sodium silicate, polyurethane, titanium dioxide and phenolic resin are taken as the heat-resistant additives; the heat resistance is good; the strength of the asphalt can be improved; the viscosity and the ageing resistance of the asphalt are improved due to addition of furan resin, dioctyl phthalate, sugar alcohol, stearamide, mica powder, the manufactured sand, silicone oil, silane coupling agent and the anti-aging agent; and the use of the asphalt under the high-temperature condition is met.

The invention discloses warm mixed colored asphalt. The product comprises a warm mixing agent, a polymer and matrix asphalt. The warm mixing agent is prepared by the following steps of performing a sweating process by taking a byproduct polyethylene wax as a raw material. In the sweating process, oil soluble organic matters capable of decomposed to generate gas are pre-added into the byproduct polyethylene wax raw material, and micro-bubbles are formed in a wax layer by means of gas generated by the byproduct polyethylene wax which is heated, so that a liquid component is quickly discharged and separated; meanwhile, in the sweating process, the liquid component is carried out through the wax layer by means of the air flow to separate the solid component from the liquid component in a forced manner, so that the low molecular weight components in the raw material are removed more effectively. The warm mixed colored asphalt disclosed by the invention not only is low in using temperature, but also can improve the thermal stability of the asphalt, improve the anti-aging property, alleviate thermal aging of the asphalt, and reduce the generation amount of harmful gas.

Provided herein are asphalt compositions comprising asphalt, a carboxylated copolymer, a polyalkyleneimine, and a photoinitiator. The carboxylated copolymer present in the asphalt compositions can be a latex composition derived from a carboxylated styrene-butadiene copolymer. The carboxylated copolymer includes from 0.5% to 25% by weight carboxylic acid monomers. The carboxylated styrene-butadiene polymer and the asphalt can be present in a weight ratio of from 1:99 to 1:10. The polyalkyleneimine present in the asphalt compositions can be in an amount of greater than 0% to up to 10% by weight of the asphalt composition. The photoinitiator can include benzophenone and/or a derivative thereof. Tack coats meeting ASTM-D-977 standard comprising the asphalt compositions disclosed herein are also provided. The tack coat can have a tack-free time of 10 minutes or less. Methods of producing the asphalt compositions and tack coats are also disclosed.

The invention relates to a method for preparing modified asphalt by utilizing waste transfusion bag film in one step. The invention adopts the technical scheme that 1, the modified asphalt comprises the following compositions in parts by mass: 100 parts of base asphalt, 2 to 60 parts of transfusion bag film, 1 to 10 parts of nano montmorillonoid and 1 to 10.2 parts of a compatilizer. The base asphalt is heated and molten, the compatilizer is added in the base asphalt to be mechanically sheared at a high rotation speed or manually stirred; then the transfusion bag film fragments are added to be mechanically sheared at a high rotation speed; and the nano montmorillonoid is added to be mechanically sheared at a high rotation speed, the waste recycled disposable multilayer coextrusion transfusion bag film is enabled to be used as the modifier, and the base asphalt is modified by adopting a one-step technology. The prepared modified asphalt is low in cost and high in comprehensive performance, the high temperature resistance is good, and a reliable way for comprehensively utilizing the medical waste can be provided.

The invention discloses an odorless asphalt mixture, a preparation method thereof and an application of the odorless asphalt mixture on a pavement, and the preparation method comprises the following steps: carrying out low-temperature plasma modification on a graphdiyne nano material to obtain a graphdiyne modified solution; mixing 1-10 parts by weight of magnesium hydroxide, 1-2 parts by weight of TEOS, 1-5 parts by weight of vegetable oil, 1-10 parts by weight of SBS and 1-2 parts by weight of an odor inhibitor to obtain an asphalt composite modifier; heating the matrix asphalt to 150 to 170DEG C; then adding an asphalt composite modifier and graphdiyne modification liquid; wherein the weight ratio of the matrix asphalt to the asphalt composite modifier to the graphdiyne modification liquid is 100: (1-5): (10-25), shearing and heating to 185-220 DEG C, shearing and swelling for 0.5-2 hours, then cooling to 170-180 DEG C to obtain the odorless asphalt mixture, drying and packaging toobtain the odorless asphalt mixture. By selecting a novel nano material graphdiyne, compared with traditional materials such as graphene and carbon nanotubes, the optimization efficiency of the performance of the odorless asphalt is higher.

The invention discloses chemically modified colored resin asphalt and a preparation method thereof. The asphalt consists of three components of A, B and C; the component A is epoxy resin; the component B consists of a curing agent, petroleum resin, a light-colored oil-based solvent, natural rubber and an active compatibilizer, wherein the mass parts of the components in the component B are as thefollows: 0.5-5 parts of the curing agent, 1-5 parts of the petroleum resin, 3-12 parts of the light-colored oil-based solvent, 0-3 parts of the natural rubber and 0-3 parts of the active compatibilizer; the component C is color pigment, wherein the mass ratio of the A component to the B component is (1:3)-(1:15), and the ratio of the total mass of the A component to the B component to the mass ofthe C component is (2:1)-(5:1). The chemically modified colored resin asphalt has the advantages of bright color, high strength, good flexibility, long service life, good color durability and the like. The component A and the component B have good storage stability and are convenient to construct and apply. The chemically modified colored resin asphalt is suitable for public garden road surfaces,square paving surfaces, special road anti-skid surface layers and the like, has excellent performance, has warning and beautifying functions, and thus has a wide application prospect.

The invention relates to the technical field of external wall insulation, in particular to a waterproof type external wall insulation structure and a production method thereof. A leveling layer, a waterproof layer, an adhesive layer, an insulation layer, a first rubber cement layer, a gridding cloth layer, a second rubber cement layer and a finish layer are adopted; the problem of water leakage or wall mildewing due to lack of effective waterproof functions or setting of insulation structures in an existing external wall insulation structure is solved by the aid of the waterproof layer and an anchoring part.

The invention discloses a high-space large-span broken-line-shaped cable membrane structure and a construction method thereof. The cable membrane structure comprises an outer ring beam and a central inverted-cone-shaped truss, wherein three circles of a ridge cable, a valley cable and a bearing cable are arranged between the outer ring beam and the central inverted-cone-shaped truss from top to bottom to form a stable stress system, the ridge cable and the valley cable are each symmetrical about the axis of the central inverted-cone-shaped truss, PTFE membrane materials, ETFE membrane materials and hyperbolic ETFE membrane materials cover the ridge cable, the valley cable and the central inverted-cone-shaped truss and are subjected to waterproof design, and the whole covered membrane is distributed in a broken line shape. During construction, the outer ring beam is poured firstly, then the center inverted-cone-shaped truss is manufactured, the steel cables are laid, lifting cables and auxiliary balance cables are selected in sequence, finally synchronous lifting and tensioning construction is conducted, and membrane materials are installed after the whole structure is tensioned and formed. The structure is attractive, a tower or a supporting frame does not need to be erected at the position of the floor, the problems that the site is narrow, the building ground bearing capacity is limited, and the hoisting height is too high are effectively solved, and meanwhile the problems that cable membrane construction is large in safety risk, long in construction period and high in measure cost are solved.

The invention discloses a high-density polyvinyl chloride drainage board and a preparation method thereof, and particularly relates to the technical field of waterproof materials. Thehigh-density polyvinyl chloride drainage board comprises a drainage board body, wherein a stud is arranged on one side of the drainage board body, an inserting groove is formed in one end of the drainage board body, and an inserting bar is arranged at the other endof the drainage board body; guiding grooves are formed in the inner walls of the two sides of the inserting groove, and guide bars are arranged onthe two sides of theinserting barcorrespondingly;an embedding groove is formed in the outer side of the top end surface of theinserting groove; and a sealing plate is arranged at the top end of the inserting groove in a matched mode. According to the high-density polyvinyl chloride drainage board andthe preparation method thereof, by using the matched type inserting groove and the inserting bar as well as the guide grooves and the guide bars, the connection convenience between the adjacent drainage board bodies can be greatly improved, the sealing plate is fixed in the inserting groove by a locking bolt, so that the connection between the two adjacent drainage board bodies is more stable, meanwhile, by adding flat glass fibers and glass flakes to a formula, the compressive strength of the drainage board can be greatly improved, and the water absorption rate can be reduced.

The invention relates to the field of floor slabs, in particular to an assembly type composite floor slab. The assembly type composite floor slab comprises limiting grooves, a floor slab body, a pressure relief structure, a supporting rod, limiting structures and pressing blocks. The periphery of the floor slab body is provided with the limiting grooves with a triangular section. The limiting grooves are used in cooperation with the pressure relief structure. By means of the pressure relief structure, seal is conducted between adjacent floor slab bodies, and then the seal performance between the two adjacent floor slab bodies is better. Each pressing block at the bottom end of the floor slab body drive the corresponding limiting structure by means of the gravity of the floor slab body so as to fix the adjacent two pressing blocks, so that it is effectively avoided that in the process of stepping on the floor slab body, the floor slab body shakes, a pressure relief function is achievedon the floor slab body, and the situation that since the hardness of the floor slab body is large, living is not comfortable is effectively avoided; when people step on one floor slab body, the limiting structures enable the adjacent floor slab body to be tightly attached to the supporting rod, the pressure relief structure is pulled at the same time, and the seal performance between the pressurerelief structure and the floor slab body is better; and meanwhile, the pressure relief structure is used in cooperation with the limiting structures to facilitate resetting of the floor slab body.

The invention provides an automatic leakage blocking device with a width regulating function. A leakage blocking regulating hole is formed in a leakage blocking support frame; a leakage blocking width regulating rod is connected with two fastening block connecting rods through a regulating connecting shaft; the fastening block connecting rods are connected with horizontal regulating fastening blocks through fastening block connecting shafts; a regulating hole sealing plate is connected with the leakage blocking support frame through a sealing plate regulating shaft; a leakage blocking agent sealing layer covers the outer layers of the horizontal regulating fastening blocks, and is connected with the leakage blocking support frame; and a leakage blocking agent filling groove is formed between the horizontal regulating fastening blocks and the leakage blocking agent sealing layer. The automatic leakage blocking device has the beneficial effects that the leakage blocking efficiency of the leakage blocking device is effectively improved; the use range of the leakage blocking device is effectively expanded; and the practicability of the leakage blocking device is greatly improved.