47 results about "Building insulation materials" patented technology

The invention discloses a building external wall insulation board convenient to install, and relates to the technical field of building insulation materials, the building external wall insulation board comprises an insulation board body, a vacuum insulation board and expansion bolts, one side of the insulation board body is provided with the vacuum insulation board, and one side of the vacuum insulation board is attached to a wall in a butt joint mode through an adhesive. According to the building external wall insulation board convenient to install, the butt joint mechanism, the self-locking mechanism and the tightening mechanism are arranged in a linkage mode, a fastening pin of the butt joint mechanism is adjusted to drive an inner lock hook and an outer lock hook to clamp a limiting block, and the self-locking mechanism moves along with a guide piece to enable a swing arm to rotate to drive an air spring rod to lock an included angle between a wide supporting arm and the outer lock hook; and a limiting block is fastened through synchronous movement of a clamping plate of the tightening mechanism and an inner lock hook, so that the clamping plate extrudes and pushes two lifting pins to be inserted into the inner wall of a positioning hole of the vacuum heat insulation plate to be used for increasing the anchoring strength, and then it is guaranteed that the outer wall heat insulation plate has the anti-falling protection stable installation effect.

The invention relates to the technical field of building thermal insulation materials, in particular to a preparation method of a building thermal insulation material based on modified aerogel, solves the defects in the prior art, and comprises the following components in parts by weight: 30-50 parts of modified aerogel, 5-15 parts of photonic crystals, 2-8 parts of carbon nanotubes, 10-20 parts of phase change energy storage microspheres and 1-5 parts of photothermal conversion nanoparticles. The preparation method comprises the following steps of: carefully selecting and combining various functional components, such as modified aerogel, carbon nanotubes, phase change energy storage microspheres, photothermal conversion nanoparticles and the like, so as to prepare the thermal-insulation coating with the thermal-insulation function, thereby obtaining the thermal-insulation coating with the thermal-insulation function, the thermal-insulation function, the thermal-insulation function, the thermal-insulation function and the thermal-insulation function. According to the building heat insulation material technology based on the modified aerogel, through innovative material compounding and multifunctional integration, the heat insulation performance is greatly improved, multiple advantages of environmental protection, safety, multiple functions and the like are brought, and a new solution is provided for the field of building energy conservation.

The invention provides a coal gangue foaming thermal insulation building material and a preparation method thereof, and relates to the technical field of waste resource utilization. The coal gangue foaming thermal insulation building material provided by the invention is prepared from the following raw materials: cement, coal gangue, water, a water reducing agent and a nano foaming agent. The coal gangue is recycled, the efficient and green cement-based light thermal insulation material is provided, and compared with a traditional building thermal insulation material, the efficient and green cement-based light thermal insulation material has the following advantages that environmental friendliness and sustainability are achieved, waste materials are utilized, consumption of natural resources is reduced, and reduction of pollution of waste to the environment is facilitated; the building material obtained by utilizing the foam concrete has excellent thermal insulation performance, can effectively insulate heat and can improve the energy utilization efficiency of buildings; the building material provided by the invention is relatively low in density, but has enough strength, so that the requirements of a building structure can be met, and the load of a building is reduced.

The present invention relates to the technical field of building insulation materials, and in particular to an exterior wall insulation board and a production method thereof. Slag powder, active microsilica, cement, fly ash, a water reducer, a waterproofing agent, a redispersible latex powder, a cellulose ether, silicon dioxide, a reinforcing fiber and water are mixed to obtain a premixed cementitious material; EPS aggregate is added to the premixed cementitious material and mixed at a low speed to obtain a premix; the premix is ​​loaded into an exterior wall insulation board mold, baked at 80-85°C for at least 8 hours after compaction, demoulded after natural cooling, and cured for at least 7 days to obtain an exterior wall insulation board. The exterior wall insulation board provided by the present invention has a compressive strength of ≥0.2MPa and a thermal conductivity of less than 0.050W / (m·K). At the same time, it is tested according to the GB / T 5464 standard and meets the requirements of non-combustible materials of grade A2 and above, has the advantages of low thermal conductivity, high fire resistance, etc., and the high compressive strength can meet the requirements of JG / T 253‑2019.

The invention discloses a nano-modified epoxy building thermal insulation material and a preparation method thereof, and belongs to the technical field of building thermal insulation materials. The composite material is prepared from the following raw materials in parts by weight: 100 parts of bisphenol A type epoxy resin, 5 to 15 parts of epoxy resin toughening agent, 0.5 to 2 parts of antioxidant, 5 to 15 parts of graphene aerogel, 1 to 3 parts of nano silver particles, 5 to 15 parts of nano silicon dioxide, 15 to 25 parts of hollow glass beads, 5 to 15 parts of paraffin microcapsules and 30 to 50 parts of epoxy resin curing agent. By optimizing the components of the nano-modified epoxy building thermal insulation material and adopting an ultrasonic-assisted efficient preparation process and the like, the nano-modified epoxy building thermal insulation material shows excellent performance in the aspects of compressive strength, heat conductivity coefficient, dry apparent density and volumetric water absorption rate, and is suitable for being applied to high-end building thermal insulation, energy-saving buildings and special environments.

This invention provides a lightweight and high-efficiency thermal insulation mortar and its preparation method, relating to the field of building insulation materials technology. The mortar comprises: 28-40 parts of cementitious material, 29-35.75 parts of water, 16-35 parts of hydrophobic aerogel particles, 5-9 parts of foam, 0.5-2 parts of water-reducing agent, 0.2-1.5 parts of cellulose ether, 0.1-0.5 parts of redispersible latex powder, and 0.2-0.7 parts of expanding agent. This invention uses hydrophobic aerogel particles as thermal insulation aggregate. Due to the low density and extremely low thermal conductivity of aerogel particles, the prepared thermal insulation mortar exhibits lightweight and highly efficient thermal insulation performance compared to traditional thermal insulation mortars. The incorporation of foam not only improves the workability of the thermal insulation mortar but also generates more uniform and microscopic closed pores in the mortar, further reducing the density and thermal conductivity of the thermal insulation mortar.

The invention provides an intermittent expandable polystyrene fireproof insulation board vacuum adsorption production system, and belongs to the technical field of building insulation material production equipment. The system comprises a feeding unit, a correction detection unit, a vacuum permeation unit, a slurry scraping and loading unit, a vacuum power unit, a slurry preparation unit, an auxiliary continuous batching system and a whole-line automatic cleaning system which are connected in sequence, and all the units are linked through a control system. Through the collaborative design of intermittent vacuum infiltration, dynamic recovery and automatic cleaning, efficient, stable and low-consumption production of the fireproof insulation board is achieved.

The utility model discloses a building thermal insulation material, which relates to the technical field of thermal insulation materials and comprises a base layer and a bonding layer, the bottom end of the base layer is fixedly connected with the bonding layer, the bottom end of the bonding layer is fixedly connected with a mucous membrane protective layer, the thickness of the bonding layer is larger than that of the mucous membrane protective layer, and a thermal insulation layer is arranged at the top end of the bonding layer. The thickness of the heat preservation layer is larger than that of the base layer, and a buffer layer is arranged at the top end of the heat preservation layer. According to the thermal insulation wallpaper, the adhesive layer is exposed by tearing the mucous membrane protective layer through the thermal insulation layer, so that the thermal insulation wallpaper can be conveniently fixed on the surface of a wall by utilizing the adhesive layer, and the two sides of the thermal storage layer are subjected to temperature guide through the first temperature guide layer and the second temperature guide layer; the temperature is transferred into the temperature conducting grooves of the temperature storage layer through the temperature conducting strips, so that the temperature is concentrated in the temperature storage layer, and the temperature storage layer is convenient to adapt to thermal expansion and cold contraction changes through the temperature storage holes.

The utility model discloses a building thermal insulation material production die convenient to unload, which comprises a bottom plate, the left end of the top of the bottom plate is fixedly connected with a die body, the middle end of the top of the die body is provided with a forming groove, and the left end and the right end of the bottom of an inner cavity of the forming groove are respectively provided with a mounting groove. The bottom of an inner cavity of the mounting groove is fixedly connected with an electric telescopic rod. By means of the forming groove, a heat preservation material can be formed, after the heat preservation material is solidified in the forming groove, the electric telescopic rod is controlled to extend, so that the top plate can be driven to move upwards, the formed heat preservation material can be ejected out, then the electric sliding table is controlled to move rightwards, and the push plate can be driven to move rightwards; therefore, the thermal insulation material can be pushed away, manual discharging is not needed, the discharging speed can be increased, the thermal insulation material can be guided into the material collecting box through the material guiding plate, and the thermal insulation material can be prevented from deviating in the material guiding process through the baffle.

A roof truss comprising a bottom chord 2, at least one top chord 3, and an insulation support frame 7. The bottom chord 2 is configured to bear upon and be supported by two spaced apart support structures 33. The top chord 3 is connected to the bottom chord 2 and configured to support roofing material on a first side of the bottom chord 2, above it in use. The insulation support frame 7 extends from the bottom chord 2 on a second side of the bottom chord 2 opposite the first side, below it in use. The insulation support frame 7 is configured to support building insulation 61 on the second side of the bottom chord. The truss may be used in a hybrid building comprising an on-site construction and a modular building unit connected together. The truss may be configured to span both the on-site construction and the modular building unit and the insulation support frame 7 may extend only for the part of the truss spanning the on-site construction.

The utility model discloses building thermal insulation material mortar pre-mixing equipment for building construction, which relates to the technical field of building construction and comprises a supporting unit, a barrel unit, a stirring unit and an opening and closing unit. The stirring unit comprises a rotating shaft movably arranged in the center of the interior of the barrel unit and a plurality of stirring rods which are fixedly connected to the outer surface of the rotating shaft and used for stirring mortar; the opening and closing unit comprises a fixing plate fixedly connected to the bottom of the supporting unit and a closing plate movably arranged on one side of the fixing plate in a penetrating mode and used for opening and closing discharging. According to the mortar pre-mixing equipment for the building thermal insulation material for building construction, mortar can be pre-mixed more uniformly, the stirring effect of the mortar is improved, resource waste caused by the fact that the mortar adheres to the inner wall is avoided, discharging and using of the mortar are facilitated, pre-mixing operation of the mortar is facilitated, and discharging and using of the mortar are facilitated. And the situation of discharging blockage is avoided, and good practicability is achieved.

The utility model discloses a composite insulation board structure, and belongs to the technical field of building insulation materials, the composite insulation board structure comprises a plurality of mutually connected unit bodies, each unit body comprises a unit insulation board, a mounting box and a mounting door plank, the mounting box is provided with an opening, the unit insulation board is placed in the mounting box, and the mounting door plank is arranged on the mounting box. The mounting door plate is fixed at the opening of the mounting box; limiting grooves are formed in the side faces of the unit heat preservation plates, and limiting strips matched with the limiting grooves are fixed to one side of the installation door plate. The unit insulation board is placed in the mounting box, the mounting door plate is fixed on the mounting box, and bolts or connecting pieces are mounted on the mounting box and the mounting door plate in the mounting process of the unit body, so that the unit insulation board cannot be damaged by the bolts or the connecting pieces, and the insulation effect of the unit insulation board is improved.

1. Name of the product in this design: Plastic sleeve fastener (with built-in anti-cold bridge cap). 2. Purpose of this design: To fix the building envelope to various building insulation materials or other uncertain base layers. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: a 3D model.

The invention belongs to the technical field of building materials, and discloses a method for compositely modifying asphalt by using waste polystyrene and cement in order to solve the problem that at the present stage, polystyrene boards serving as building thermal insulation materials are difficult to recycle after being discarded. Comprising the following steps: cleaning and drying waste polystyrene, crushing the waste polystyrene into polystyrene particles for later use, heating and stirring matrix asphalt, adding the polystyrene particles and cement when the matrix asphalt is heated to 160-180 DEG C, uniformly stirring, putting into a drying oven at 120-160 DEG C, culturing for 0.5-3 hours at a constant temperature, putting into a high-speed shearing machine, stirring for 3-10 minutes at a speed of 200-400 r / min, and cooling to room temperature. And finally, putting the mixture into a drying oven at 120-160 DEG C, and carrying out constant-temperature cultivation for 15-60 minutes to obtain the modified asphalt. The doping amount of the waste polystyrene is 0.1-6%, and the doping amount of the cement is 0.1-4%. The composite modifier composed of polystyrene / cement can integrally improve the high and low temperature performance of asphalt, recycle of waste polystyrene is achieved, the construction cost is reduced, and sustainable development of civil engineering materials is achieved.

The utility model discloses a building thermal insulation material carrying mechanical arm which is characterized in that a clamp main body is composed of a cross beam, a U-shaped frame, U-shaped pieces, inserting needles, a frame, a guide block, a breather pipe, an inflation rubber ring and an air pressure sleeve, the U-shaped pieces are linearly distributed and fixedly installed on the cross beam, the frame is fixedly installed at the bottoms of the U-shaped pieces in a threaded connection mode, the guide block is fixedly installed in the frame, and the air pressure sleeve is fixedly installed on the U-shaped pieces. And the top of the contact pin is fixedly mounted in the guide block. The carrying mechanical arm is installed in the polystyrene foam plastic heat preservation plate in an inserted mode through the inserting needle structure, the inflatable rubber rings in the inserting needles are inflated, then the inflatable rubber rings are expanded, friction limiting is formed at the joint of the inflatable rubber rings and the interior of the polystyrene foam plastic heat preservation plate, and then the polystyrene foam plastic heat preservation plate is lifted in an inserted mode and then carried. When the polystyrene foam plastic insulation board is laid, the clamp main body does not interfere with the adjacent polystyrene foam plastic insulation board or other building structures, so that the automatic laying operation can be completed, and the automatic laying device has the advantage of high automation completion degree.

The application discloses a kind of high-performance ultra-thin vacuum heat insulation composite insulation board and production process thereof, it is related to building insulation material technical field, including vacuum heat insulation board and coating slurry, the coating slurry six coatings are in the outer surface of vacuum heat insulation board, the coating slurry solidification forms hard protective shell;The coating slurry includes the following weight parts of components: cement 290-310 parts, polyphenyl particle 3-5 parts, water 140-160 parts, reinforcing agent 2-4 parts, foaming agent 0.1-0.3 parts, glass short fiber 3-5 parts;The application is improved by coating slurry composition and proportion, and glass short fiber is added therein, in the case where coating slurry thickness is same, effectively improve the strength after coating slurry hardening, so that the thickness of the vacuum heat insulation composite insulation board can reach within 26mm, and make its performance meet the requirements of relevant standards.

A high-salt water gel vacuum bag with flame retardant and heat-insulating functions, with a hydrogel or hydrogel as a sealed shell and a vacuum interior; the hydrogel is made by mixing monomers, initiators, cross-linking agents, saturated salt solutions, and inorganic additives, wherein the inorganic additives account for 0-20% of the weight of the hydrogel. The present invention also provides a preparation method and application of the high-salt water gel vacuum bag. The high-salt water gel vacuum bag of the present invention can effectively isolate the internal and external temperatures, reduce heat transfer, and has many characteristics such as flame retardancy, heat insulation, and thermal insulation. The hydrogel vacuum bag and preparation method provided by the patent of this invention can be applied to flame retardant and heat-insulating materials such as building insulation materials, fire-fighting fireproof clothing, personal protection, military equipment, weapons and equipment, naval, land, air, and space equipment / aerospace engines, military cabins, oil tanks, containers, thermal insulation boxes, and boats.

The invention provides a novel perlite insulation board and a preparation process thereof, and belongs to the technical field of building materials. 10-20% of composite mineral powder; 20-30% of a special adhesive; 3-5.5% of a functional additive; through the three-stage particle size gradient design, the composite mineral powder replacing the adhesive and the synergistic effect of the diatomite, the fly ash and the silica fume, the compressive strength, the breaking strength, the toughness and the thermal insulation performance of the thermal insulation board are effectively improved, and finally it is determined that when the optimal proportion of the perlite thermal insulation board product is 55% of expanded perlite particles, 5% of the functional additive, 13% of the composite mineral powder and 27% of the adhesive, the thermal insulation performance of the perlite thermal insulation board product is improved. At the moment, the perlite insulation board shows high compressive strength, breaking strength, toughness and thermal insulation performance, and a new technical solution is provided for the field of building insulation materials.

The utility model relates to the technical field of building thermal insulation material recovery, in particular to a rapid crushing device for building thermal insulation materials. According to the technical scheme, the smashing device comprises a smashing box, a feeding port is formed in the top of the smashing box, a feeding hopper is installed at the feeding port, a first smashing roller and a second smashing roller are rotationally installed in the middle of the interior of the smashing box through bearing seats, four sets of cutter grooves are formed in the first smashing roller and the second smashing roller in an annular array mode, and smashing cutters are fixed in the eight sets of cutter grooves through screws; a mounting seat is mounted between the crushing roller I and the crushing roller II in the crushing box, a triangular seat is mounted at the top of the mounting seat, two cutter grooves are symmetrically and obliquely mounted on two sides of the mounting seat, fixed cutters are fixed in the two cutter grooves through screws, the fixed cutters and the crushing cutters are mounted in a staggered manner, and a discharge groove is mounted at the bottom end of the crushing box and located at the discharge port. The two groups of fixed cutters are matched with the four groups of crushing cutters on the crushing roller I and the crushing roller II to crush materials, so that the crushing efficiency and the crushing effect are improved.

The utility model discloses a crushing device for processing a building thermal insulation material, and relates to the technical field of crushing devices. The crushing device comprises a crushing box, a sleeve frame is fixed on the inner wall of the crushing box; a reciprocating screw rod is rotatably arranged on the inner wall of the sleeve frame in a penetrating manner; a crushing assembly is arranged on the inner wall of the sleeve frame; the crushing assembly comprises a sliding frame; sliding barrels are fixed at the end parts of the sliding frames; a plurality of crushing cutters are uniformly and rotationally arranged on the circumferential side surface of the sliding barrel in a circumferential array distribution manner; a rotating shaft is fixed at the end of the reciprocating screw; rotating rings are fixed at the end parts of the rotating shafts; a plurality of connecting shafts are evenly fixed to the side face of the rotating ring in a circumferential array distribution mode. The reciprocating lead screw is rotated to drive the sliding frame, the sliding cylinder and the smashing cutter to slide back and forth, meanwhile, the reciprocating lead screw rotates to drive the rotating shaft, the rotating ring and the connecting shaft to rotate, and then the connecting shaft drives the smashing cutter to rotate, so that the smashing cutter rotates to smash raw materials while moving left and right in the smashing box, the smashing size is enlarged, and the smashing efficiency is improved.

The utility model discloses a building insulation block, which relates to the field of building insulation materials and comprises a block main body. By arranging the semi-arc-shaped assembling blocks and the semi-arc-shaped assembling grooves corresponding to the semi-arc-shaped assembling blocks, the assembling blocks can enter the assembling grooves in the carrying process to limit and support connection among a plurality of heat preservation building blocks, carrying of workers is facilitated, and during follow-up installation, the assembling blocks and the assembling grooves are matched with each other, so that the assembling efficiency is improved. The friction force between the thermal insulation building blocks and the carrying straps is increased by arranging the anti-skid grooves composed of the arc-shaped grooves, so that when a worker carries the thermal insulation building blocks, the multiple thermal insulation building blocks can be better fixed together through the used carrying straps and cannot be loosened in the transportation process, and the transportation stability is guaranteed; and by arranging the anti-included angle, workers cannot be injured by mutual extrusion and clamping of the heat preservation building blocks during carrying, and the safety of the workers during transportation is improved.

The application discloses a composite process for improving the heat conduction and hydrophobic performance of rock wool, and belongs to the technical field of building insulation material production. The application comprises the following steps: rock wool substrate pretreatment, aerogel penetration-solidification treatment, edge hydrophobic reinforcement treatment and finished product inspection; a composite slurry containing hydrophobic aerogel and a high polymer binder is introduced into rock wool pores in a vacuum penetration mode and is solidified, and 1-3 mm hydrophobic putty is coated on the four edges of the rock wool to form a sealing band. The application significantly reduces the heat conduction coefficient by reconstructing the micropore-nanopore gradient heat insulation structure, simultaneously blocks the edge capillary water absorption channel, effectively solves the technical problems of high heat conduction of traditional rock wool, easy water absorption of the edge, poor bonding stability, cost imbalance and difficulty in industrialization integration, and has the advantages of low heat conduction, long-term hydrophobicity, stable durability, economic efficiency and easy scale production, and is suitable for passive ultra-low energy consumption buildings and insulation and decoration integrated panel core materials.

The present invention relates to the technical field of thermal insulation material production devices, and discloses a raw material mixing device for the production of building thermal insulation materials, including a stirring tank, a first circular plate is fixedly connected to the top of the stirring tank, a plurality of cylinders are fixedly connected to the top of the first circular plate, a second circular plate is fixedly connected to the top of the plurality of cylinders, a movable device is connected inside the stirring tank, the movable device includes a rotating device and a stirring device, the rotating device can drive the stirring device to stir the raw materials retained inside the stirring tank to different degrees, so as to improve the thermal insulation performance and mechanical strength of the material. A filtering device is fixedly connected to the hollow part inside the second circular plate, the filtering device includes a leak plate and a hollow plate, the hollow plate and the internally connected arc plate will first crush the particles that fall into the block, and then drop them into the corresponding device at the bottom.

The utility model belongs to the field of material cutting, particularly relates to building thermal insulation material cutting equipment, and aims to solve the problems that the cutting efficiency is low and the quality of finished products is uneven due to the fact that the conventional equipment cannot be accurately adjusted according to the material size, and materials are easy to shift and shake due to lack of stable clamping in the cutting process. According to the technical scheme, the cutting device comprises a table, an open groove is formed in the top of the table, a cutting piece is arranged in the open groove, fixing blocks are fixedly arranged on the two sides of the top of the table, and two guide rods are symmetrically and fixedly arranged on the sides, close to each other, of the two fixing blocks; and the same moving frame is arranged outside the two guide rods in a sliding manner. Through the combination of the adjusting mechanism and the auxiliary mechanism, flexible adjustment of the size of a cut material and stable clamping in the cutting process are achieved, the cutting accuracy and efficiency are improved, and the safety and stability of cutting operation are guaranteed.

The utility model is suitable for the technical field of detection equipment, and provides a building material detection device, which comprises an operation platform, a detection platform and a detection platform, the two butt joint plates are connected to the sliding rail in a sliding mode, each butt joint plate is provided with at least three detection heads for detecting the temperature of the two side walls of a material, the three detection heads are distributed at different positions of the butt joint plates, one butt joint plate is further provided with a detection sleeve for detecting the internal temperature of the material, and the other butt joint plate is provided with a temperature detection sleeve for detecting the internal temperature of the material. A drill bit is arranged in the detection sleeve in a penetrating manner, and when the thermal insulation performance of a material is detected, the material is drilled through the drill bit, so that the detection sleeve is inserted into the thermal insulation material, and therefore, the thermal insulation performance of the building thermal insulation material can be fully detected by arranging a plurality of point positions for detection; and meanwhile, the drilling mechanism is arranged to detect the internal temperature of the thermal insulation material.

The invention relates to the technical field of point cloud data processing, and particularly discloses a building thermal insulation material detection system and method based on laser point clouds, and the system comprises a processing module which is used for carrying out the region division of all de-noising points of the point cloud data of a building thermal insulation material, and obtaining all de-noising point sets of the point cloud data of the building thermal insulation material; the calculation module is used for obtaining an alternative value of each de-noising point set of the point cloud data of the building thermal insulation material based on all de-noising point sets of the point cloud data of the building thermal insulation material; and the detection module is used for obtaining a detection result of the building thermal insulation material based on the selection and rejection values of all de-noising point sets of the point cloud data of the building thermal insulation material. According to the method, the detection quality aspect and the detection efficiency aspect are integrated, the denoising points needing to be reserved in the point cloud data of the building thermal insulation material in the laser material detection process are accurately screened out, and the detection efficiency is greatly improved.

The invention discloses a northeast old community roof thermal insulation material and a preparation method thereof, the northeast old community roof thermal insulation material comprises the following raw materials by weight: 20-30 parts of rock wool fiber, 30-40 parts of expanded perlite, 10-15 parts of a binder, 5-8 parts of dispersed latex powder, 3-5 parts of wood fiber, 2-5 parts of inorganic nano aerogel and 1-3 parts of a water repellent, and the invention relates to the technical field of building thermal insulation materials. According to the northeast old community roof thermal insulation material and the preparation method thereof, the prepared thermal insulation material is efficient, safe, environmentally friendly, suitable for roofs of northeast old communities, non-flammable, good in durability and capable of being tightly combined with an old roof base layer, and the indoor comfort degree of residents and building energy saving cannot be affected.

The present application relates to the field of building insulation materials, and specifically discloses a coating fluid, a non-combustible insulation board and a preparation method therefor. The coating fluid comprises 30-60 parts of flame retardant, 20-40 parts of styrene-acrylic emulsion, 10-25 parts of arabic gum, 12-18 parts of titanium dioxide and 150-200 parts of water. The non-combustible insulation board is prepared from EPS particles, a grouting material and the coating fluid of the present application, the weight ratio of the coating fluid to the EPS particles to the grouting material is 0.6:(0.8-1.5):(12-20), and the non-combustible insulation board has the heat conductivity coefficient of below 0.045 w / m·k, the combustion grade of above A2 and the compressive strength of 0.12-0.18 MPa. The preparation method for a non-combustible insulation board is simple in operation, easy in control and suitable for mass production.

A roof truss is disclosed which has a use in constructing a building. One exemplary roof truss (1,11) comprises a bottom chord (2,12), at least one top chord (3,13), and an insulation support frame (4,14). The bottom chord (2,12) is configured to bear upon and be supported by two spaced apart support structures. The top chord (3,13) is connected to the bottom chord (2,12) and configured to support roofing material on a first side of the bottom chord (2,12). The insulation support frame (4,14) extends from the bottom chord (2,12) on a second side of the bottom chord (2,12) opposite the first side. The insulation support frame (4,14) is configured to support building insulation on the second side of the bottom chord (2,12).

The utility model relates to the technical field of building material performance detection, and discloses a building thermal insulation material performance detection device which comprises a working table, moving grooves are formed in the middles of the two sides of the upper end of the working table, and first positioning grooves are formed in the positions, close to the front portion and the rear portion, of the two sides of the upper end of the working table. Two-way threaded rods are rotationally connected between the inner walls of the two sides of the two first positioning grooves, first positioning rods are fixedly connected between the inner walls of the two sides of the multiple first positioning grooves, the two sides of the outer walls of the two-way threaded rods are sleeved with movable sliding blocks in a threaded mode, and the upper ends of the multiple movable sliding blocks are fixedly connected with movable bases. According to the material clamping device, the clamping part can be transversely and longitudinally adjusted, so that materials can be stably clamped and fixed, meanwhile, the material clamping device can clamp and fix material plates of various specifications and sizes, the application range is wider, and the practicability is better.