43results about How to "Not easy to empty" patented technology

The invention discloses a freight transport management system and a management method thereof. The freight transport management system comprises common customers connected with an internet through mobile intelligent communication devices, enterprise customers connected with the internet through enterprise servers, truck drivers connected with the internet through mobile intelligent communication devices, a freight transport unit connected with the internet through a freight transport unit server, and a system server connected with the internet. The management method of the freight transport management system roughly includes that customer information and truck information are input, freight transportation demand information is released, the truck drivers snatch orders, cooperation is confirmed on both sides, transaction payment is performed, and profits are distributed. According to the freight transport management system and the management method thereof, a platform of the freight transport management system is built by using the mobile intelligent communication devices and the internet, various intermediary links in a traditional freight transport linkage are cut out by using the platform, the customers and truck sources are integrated, the sources are abundant, a truck is convenient and rapid to find, the truck is difficult to empty when returns, freight transport cost can be saved due to the fact that a plurality of customers can share the truck, and the platform has functions of price guidance, payment and financial management.

The invention discloses a reaction-type high-strength laminated film waterproof roll which comprises a layer of high-strength cross laminated film (HDPE, high-density polyethylene) with thickness of 0.10-0.14mm and a layer of modified asphalt super glue which can react with cast-in-place concrete and is solidified together with the cast-in-place concrete. The waterproof roll can be chemically cross-linked and physically blended with concrete; under the effect of a coagent, a bonding layer can be continuously and permanently bonded with a base layer processing agent or the concrete poured on the bonding layer so as to completely prevent water from permeating into a clearance between the waterproof roll and the structure and form a skin-type net-shaped integer together with the base surface. Since the high-strength cross laminated film of special material HDPE has good tensile strength, breaking elongation rate and anti-puncture capability, the self-adhered waterproof roll of the high-strength cross film has the advantages of relatively good tensile strength, breaking elongation rate, anti-puncture capability and aging resistance.

The invention discloses modified direct-scraping thin-layer plastering mortar and a construction method. The plastering mortar is prepared from the following components in parts by weight: 150-200 parts of cement, 700-820 parts of sand, 60-90 parts of mineral micro powder, 0.5-1.2 parts of dispersible latex powder, 0.5-1 part of a thickening agent, 0.2-0.6 part of alkaliproof fibers, 0.1-0.5 part of thixotropic lubricant powder, 0.5-2 parts of multifunctional powder and 150-170 parts of water. The mortar materials disclosed by the invention are small in construction dosage, simple in technology, excellent in bonding force, excellent in crack resistance, and not liable to hollow and crack, the efficiency is greatly improved, and the cost is reduced.

The invention relates to a flexible tile adhesive which comprises a component A and a component B. Mass ratio of the component A to the component B is 3:1. The component A is prepared from the following raw materials (by weight): 30-46% of Portland cement, 40-56% of washed-out baked sand, 5-8% of quartz powder, 0.1-0.4% of an antifoaming agent, 1.5-2.2% of cellulose ether, 0.2-0.3% of starch ether, 1.5-3% of redispersible latex powder, 0.4-0.65% of a water reducer and 0.1-0.2% of polypropylene fiber. The component B is prepared from the following raw materials (by weight): 50-75% of an elastic polymer emulsion, 20-45% of water, 0.2-0.5% of a surfactant, 0.3-0.5% of a preservative, 1-3% of 2,2,4-trimethyl-1,3-pentanediol monoisobutyrate and 0.5-1% of an ethylene glycol antifreezing agent. The flexible tile adhesive has certain flexibility, is not easy to crack, hollow or fall, has good bleeding resistance, strong scratch resistance and shock resistance, and is easy to operate.

The invention discloses a rapid-hardening terrace material comprising following components, by weight, 30-34 parts of Portland cement, 5-10 parts of high-aluminum cement, 35-45 parts of quartz sand, 0.08-0.22 parts of a water reducing agent, 0.06-0.13 parts of a defoaming agent, 0.6-1.5 parts of a redispersible latex powder, 2.5-4 parts of gypsum powder, 0.1-0.2 parts of a retarder and 0.1-0.15 parts of a thickening agent. A preparation method of the rapid-hardening terrace material comprises following steps: (1) mixing the components uniformly to obtain a mixture material; and (2) adding water to the mixture material with stirring uniformly with an addition amount of the water accounting for 20-22% of the total mass of the mixture material. The rapid-hardening terrace material can be dried and hardened rapidly, is good in anti-shock performance, is not liable to swelling, is gravity roller compaction resistant, is good in joint performance with concrete ground, is sun-tolerant and is especially suitable for repairing and renewing old terraces and constructing a new terrace.

The invention relates to a cement concrete deck lamina repairing agent, which comprises a component A and a component B. The component A is polymer emulsion which is either pure acrylic emulsion or styrene-acrylate emulsion. The component B is a powdered material rich in fiber, which is prepared with the following components by weight: 35 to 75 percent of an expansion agent; 0 to 20 percent of sodium sulphate; 0 to 6 percent of a water reducer; 0.5 to 6.0 percent of synthetic coarse fiber, 0 to 42 percent of pulverized fuel ash or powdered ore. After the component A and the component B are added to and mixed in concrete mixture pro rata, the repaired hardened concrete and the original concrete have high crack resistance, crush resistance, impact and grinding resistance and stripping resistance; the repaired concrete can be open to traffic after 24 hours. The cement concrete deck lamina repairing agent can be used for repairing laminae of cement concrete deck and road.

The invention discloses a waterproof, fireproof, and thermal insulation composite plate, which comprises a temperature controlling fireproof layer, a reinforcing layer, and a waterproof anti-cracking layer from bottom to top. The temperature controlling fireproof layer is a thermal insulation heatproof fireproof nano layer, which comprises glass fibers, aluminum silicate fibers, a hollow bead nano material, glue, calcite powder, and expanded perlite. The waterproof anti-cracking layer comprises common silicate cement, fine sand, fly ash, mica powder, a Royal mortar waterproof agent, and a cement mortar antifoaming agent. The reinforcing layer comprises a layer of nonwoven cloth and a layer of fiber gridding cloth. The provided composite plate is light and fireproof, has a thermal insulation function, and can resist high temperature, low temperature, and water; the performance of the composite plate is excellent, the strength is high, and the service life is long. The phenomenon of dropping and hollowing is maximally avoided under natural conditions.

The invention discloses a hollow displacing repairing method of a hollow exterior wall tile. The method comprises the following steps of (1), performing hollowness inspection, wherein a hollowness range is determined through hammering by a hollowness hammer and marking an exterior wall surface range to be cut and shoveled by means of a marking pen; (2), cutting and shoving the hollow tile, namelyfirstly cutting the exterior tile edge of the exterior wall surface range which is to be cut and shoveled and is determined in the step (1) by means of a cutting machine, and shoveling the external wall surface by means of a tool chisel until the external wall surface is totally shoveled; (3), cleaning a base layer; (4), performing interface processing, namely applying an interface agent at a shoveled part for reinforcing the base layer and improving bidirectional adhesion; (5), applying a mortar layer and leveling, namely leveling an original white layer or an inorganic mortar layer for a thickness of 3-5mm below the upper surface by means of polymer mortar or inorganic temperature-insulating mortar; (6), performing cracking-resistant reinforcing layer construction, namely hanging a net by means of decorative mortar on a leveling layer, and fixing the net by means of anchor bolts after the net is hung; and (7), mounting surface tiles.

The invention discloses a modular prefabricated concrete circular arc chamfering waterproof system for waterproof paving of roofing coils. The modular prefabricated concrete circular arc chamfering waterproof system is applied to a corner at a connection position of a roofing parapet and a roofing board. The waterproof system includes a plastering layer arranged on the roofing parapet and a screed-coat, an insulation layer, an isolating layer, a protective layer and a waterproof layer, wherein the screed-coat, the insulation layer, the isolating layer, the protective layer and the waterproof layer are arranged on the construction roofing board; the waterproof system further includes modular prefabricated concrete circular arc chamfering which is paved at the corner at the connection position of the roofing parapet and the roofing board; the prefabricated concrete circular arc chamfering is internally provided with anti-cracking steel bars; a waterproof flashing closure is arranged at the splicing head position of the prefabricated concrete circular arc chamfering and the plastering layer of the parapet; and a gap is reserved at the splicing head position between the prefabricated concrete circular arc chamfering, a gap is further reserved at the splicing head position of the prefabricated concrete circular arc chamfering and the screed-coat, and the gaps are filled with waterproof ointment. The problems of large randomness, difficult shape control and poor molding quality when the circular arc chamfering is made by adopting cement mortar by plasterers are solved.

The invention discloses an anti-cracking composite wall body decorating plate. Tiles, coating and outer wall decorating plates are mainly used for outer wall decorating and have advantages and shortcomings. An existing outer wall decorating plate is made of cement or metal, self weight is high, construction difficulty is high, and the empty-drum phenomenon can happen easily. Composite sizing agents are used for binding two mortar cloths, then a double-roller plate maker is used for carrying out rolling, and the wall body decorating plate is formed. The composite sizing agents mainly comprises 10-40 parts of cement, 20-70 parts of quartz sand, 2-10 parts of low-temperature elastic VAE emulsion or alkali-resisting acrylic emulsion, 0.1-0.5 part of cellulose ether, 0.05-0.2 part of early strength agents, 0.1-0.5 part of PP fibers, 0.1-0.3 part of wood fibers, 0.05-0.1 part of polystyrene foaming particles, 10-20 parts of perlite and 15-45 parts of water. The plate is high in strength and real in appearance, the empty-drum phenomenon and falling off can not happen easily, any specification can be formed by cutting, construction is easy, and construction cost is low. The light material polystyrene foaming particles and the perlite are added into the composite sizing agents, so that the plate is thick and light, rigidity is high due to the thickness, and elasticity is achieved.

The invention discloses dry powder latex paint water resistant putty powder comprising the following raw materials: by weight, 15-25 parts of calcium carbonate powder, 30-40 parts of ash calcium powder, 10-20 parts of heavy calcium powder, 20-30 parts of modified talc powder, 0.5-1.5 parts of hydroxypropyl methyl cellulose, 0.4-0.6 part of hydroxypropyl guar gum and 2-3 parts of redispersible latex powder. The putty powder has excellent water resistance, acid and alkali resistance, weather resistance, scrub resistance, mildew proof and other properties, and is high in bonding strength, not easy to crack, non-falling, non-peeling, non-hollowing, easy to color, bright in color, not easy to fade, can replace traditional putty powder and latex paint for using in decoration of inner and outer walls of buildings.

The invention relates to a liquid cooling system for a server. As a liquid filling and liquid recovering device is detachably connected with a refrigeration device, a refrigerant is pumped in the refrigeration device or the refrigerant is exhausted from the refrigeration device. The operation is convenient, liquid filling and draining on a liquid storage tank and a blade can be realized, and liquid filling and draining can be realized for a certain blade in a condition of realizing no to influence normal refrigeration of other blade servers.

The invention discloses a slinging method. An opposite corner slinging method is mainly used. The method includes the steps that firstly, according to the water flow direction, two incident flow corners of a platform are acquired through detection; the two incident flow corners of the platform are slung; the other two corners of the platform are slung, sand pockets in the four corners of the platform are respectively of a pile shape, and therefore the platform is stabilized; finally other positions of the platform are slung. The method has the advantages that economical efficiency and high efficiency are achieved, pollution is avoided, and operability is high, and construction requirements can be met. Sand piles formed after slinging are connected tightly and are not prone to being undermined, anti-scouring protection can be provided for the base type platform, and the base type platform can be well protected.

The invention discloses a novel wet-mixed mortar. The novel wet-mixed mortar comprises 150 kg / m<3> to 250 kg / m<3> of air-setting and hydraulic Portland cement, 40 kg / m<3> to 150 kg / m<3> of fly ash, 1280 kg / m<3> to 1300 kg / m<3> of machine-made sand and 184 kg / m<3> to 276kg / m<3> of water. The wet-mixed mortar has the characteristics of coagulation in an air environment and normal coagulation after open time and realizes non-coagulation within open time when not in use and immediate coagulation upon usage; in the open time, the motor has good construction performance, so construction efficiency can be effectively improved, and production cost is substantially reduced; and since few raw materials are used, easy controllability is realized in production.

The invention discloses a novel environmental-protection adhesive for buildings, which is mainly characterized in that vinyl acetate is used as a polymerization monomer; crylic acid, butyl acrylate and styrene are used as functional monomers; polyvinyl alcohol (PVA) and vinyl acetateethylene emulsion (VAE) are used as protective colloids; nano silicon micro powder is used as an anti-caking agent; and ethyl benzoate and 0# colloid crystal are used as modifiers. The main monomer and the functional monomers are prepared into emulsion through multi-element copolymerization; the protective colloids, the anti-caking agent and the modifiers are added to prepare powder through spray drying. The raw material formula comprises the following components: 8-10 percent of polyvinyl alcohol, 0.3-0.5 percent of polyoxyethylene octylphenol ether-10 (OP-10) emulsifying agent, 0.1-0.15 percent of ammonium persulfate, 25-30 percent of vinyl acetate, 0.05-0.1 percent of sodium hydroxide, 20-25 percent of vinyl versatate, 2-2.5 percent of butyl acrylate, 3-5 percent of ethyl acrylate, 0.05-0.15 percent of silicone, 3-5 percent of styrene, 30-40 percent of ethyl acrylate-acetic acid copolymerization emulsion, 8-12 percent of ethyl benzoate, 10-15 percent of silicon micro powder and 5-10 percent of 0# colloid crystal. The novel environmental-protection adhesive for the buildings is added to interior and exterior wall putty powder proportionally, and thereby, the characteristic of the putty powder can be improved. The novel environmental-protection adhesive for the buildings mainly has obvious effects of improving anti-caking performance, bonding force, waterproofness, improving low-temperature service performance, enhancing hardness and preventing hollowing, cracking and dropping.

The invention provides a building ground lightweight dry mixed material, and a preparation and an application method thereof. The building ground lightweight dry mixed material comprises aggregates and powder, the aggregates are polystyrene foam particles, and the powder comprises cement, and also comprises one or more of sands, a mineral admixture and an additive. The building ground lightweight dry mixed material has the advantages of simple components, easily available raw materials, and light weight. The building ground lightweight dry mixed material can be used to construct ground cushions or ground slope making layers, and the obtained ground cushions or ground slope making layers have the advantages of light weight, shock resistance, heat insulation, sound insulation and stability.

The invention relates to a hopper, a slurry spreading terminal and slurry spreading equipment. The hopper is provided with a slurry storage chamber, the upper end of the slurry storage chamber is provided with a slurry inlet of the slurry storage chamber, the lower end of the slurry storage chamber is provided with a slurry outlet of the slurry storage chamber, the area of the slurry inlet of theslurry storage chamber is larger than that of the slurry outlet of the slurry storage chamber, at least one pressurizing cavity is arranged between the slurry inlet and the slurry outlet of the slurrystorage chamber, and the sectional area of the pressurizing cavity is gradually reduced from top to bottom. The slurry storage chamber is of a big-end-up structure, the design of the large-size slurry inlet and the small-size slurry storage outlet is adopted, slurry gathering is facilitated, and the slurry outlet uniformity of the slurry storage chamber can be improved. The pressurizing cavity isformed, so that the pressure of the slurry discharged from the slurry storage chamber is increased, the contact force between slurry and the ground is increased, the amount of air retained between the slurry and the ground is reduced, the bonding force between the slurry and the ground is improved, and tiles are not prone to hollowing after being installed. Moreover, a small opening has certain pressure maintaining capacity, and compared with a large outlet, the small outlet is beneficial to pressure maintaining in the slurry storage chamber when no external pressure exists.

The invention discloses an environment-friendly tert-carbonic acid organic silicone acrylic modified copolymer emulsion for a ceramic tile back adhesive. The copolymer emulsion is prepared from the following raw materials in parts by weight: 10 to 20 parts of styrene, 20 to 40 parts of acrylate, 5 to 20 parts of vinyl versatate, 2 to 10 parts of a functional monomer, 2 to 5 parts of an emulsifier,0.2 to 0.4 part of a water-based initiator, 0.1 to 0.3 part of a redox agent, 0.1 to 0.5 part of a preservative, and 40 to 60 parts of deionized water. According to the invention, the environment-friendly tert-carbonic acid organosilicone-acrylic modified copolymer emulsion for the ceramic tile back adhesive is prepared by polymerizing acrylate, tert-carbonic acid, styrene and organosilicon macromolecules; raw materials are environmentally friendly and meet the environmental protection standard requirements, and experimental research shows that the copolymer emulsion is high in bonding strength, not prone to hollowing and brick falling, convenient to construct and good in water resistance, freeze thawing resistance, aging resistance and the like.

The invention relates to the field of concrete building materials, and particularly discloses full-light concrete for a concrete structure floor and a preparation process of the full-light concrete. The full-light concrete for the concrete structure floor comprises the following components in parts by weight: 400-500 parts of cement, 250-350 parts of coal ash, 460-540 parts of shale ceramsite, 80-100 parts of ceramic hollow microspheres, 35-45 parts of reinforced fibers, 8-14 parts of a water reducing agent, 6.5-8.5 parts of a thickening agent and 300-400 parts of water. The preparation methodcomprises a cementing material premixing procedure, a light aggregate premixing procedure and a concrete mixing procedure. A composition / product provided by the invention can be used for structural floors, and has the advantages of light weight, high strength and excellent construction performance.

The invention discloses a waterproof plastic and wood composite material and a preparation method thereof. The preparation method comprises the following steps of mixing polypropylene and low density polyethylene, soaking into a sodium hydroxide solution, and filtering for standby use; drying wood powder for 10-30min at the temperature of 80-100 DEG C for standby use; blending treated polypropylene, low density polyethylene, wood powder, wollastonite, azodicarbonamide, silane coupling agent KH550 and epoxy resin, pressing by heat, and forming, so as to obtain the waterproof plastic and wood composite material. The waterproof plastic and wood composite material can solve the problem of common plastic and wood composite material that the moisture absorbing property is higher, the deformation is caused after the material absorbs water, the internal void or surface cracking is caused, and the use property of material is further affected.

The invention discloses thermal insulation mortar and a production method thereof and relates to the technical field of building mortar. The thermal insulation mortar is produced from expanded perlite, cement, river sand, coal ash, ethylene propylene rubber particles, glass fibers, modified seaweed and an anti-cracking agent, wherein the anti-cracking agent is formed by mixing hydrogenated castor oil, calcium sulphoaluminate and epoxy resin. The thermal insulation mortar can carry out thermal insulation for a long time and is difficult to crack, high in bonding strength with a basement layer, and hollowing is hardly caused; meanwhile, tensile strength and abrasion resistance can be obviously improved, so that the thermal insulation mortar is smoother, has strong adhesive force with a base material and hardly falls off.

The invention discloses a single-component paste elastic ceramic tile interface treatment agent preparation and construction processes, and relates to the technical field of ceramic tile adhesives. A single-component paste elastic ceramic tile interface treatment agent comprises the components by weight: 45-55 parts of a 80-100 mesh quartz powder, 25-35 parts of a 200 mesh quartz powder, 18-22 parts of a 320 mesh quartz powder, 25-35 parts of a mortar modifier, 0.05-0.15 part of a thickener, 0.05-0.15 part of a bactericide, 2-4 parts of a penetrant, 0.05-0.15 part of a dispersing agent, and 1-3 parts of a season regulator. The treatment agent makes bonding between cement mortar and the back of a whole-body tile extremely firm; the traditional cement mortar is used for pasting a ceramic tile, the mortar is easy to move, space between the ceramic tile and a wall body is full, and the face close to the wall body is not easily hollow; and the treatment agent is scraped and the cement mortar is applied for pasting immediately, and thus the process is simple.

The invention discloses a cement-based composite self-heat-insulation high-strength energy-saving building block. The building block comprises a building block body which is provided with a heat-insulation cavity, wherein the width of an upper cavity of the heat-insulation cavity is greater than or equal to the width of a lower cavity of the heat-insulation cavity; the building block is prepared from ordinary silicate cement, industrial waste residues, high-strength heat-insulation materials and a multifunctional additive. The building block has the beneficial effect that the heat insulation effect is good, other heat insulation measures are not additionally carried out in a construction process, meanwhile, the fireproof performance is good, and the compressive strength is high; furthermore, the bonding strength is high in a mounting process, the hollowing and the falling are less easily to occur, and the application prospect is wide.

The invention relates to the technical field of vacuum, and discloses a low-temperature pump convenient for water vapor regeneration. The low-temperature pump comprises a cold pump shell, a first-stage cold head, a second-stage cold head and a refrigerating machine, the first-stage cold head is installed in the cold pump shell, the second-stage cold head is installed in the first-stage cold head, a transition cylinder communicating with the interior of the cold pump shell is installed outside the cold pump shell, and the refrigerating machine is installed on the transition cylinder. A cold head of the refrigerating machine extends into the cold pump shell through the transition cylinder and is connected with the first-stage cold head and the second-stage cold head at the same time. A heating piece for heating an inner cavity of the transition cylinder is mounted on the transition cylinder. A pre-pumping cavity is formed between the top end of the first-stage cold head and a pump opening of the cold pump shell, and a pre-pumping connector communicating with the pre-pumping cavity is installed on the side wall of the pre-pumping cavity. A cooling pump shell of the low-temperature pump is heightened. A large-caliber pre-pumping connector can be installed at a pump opening of the low-temperature pump, meanwhile, a high-pumping-speed pre-pumping pump is used for pre-pumping, and in combination with built-in heating, water vapor adsorbed by the low-temperature pump is pumped away by the pre-pumping pump in a vapor state, so that the water vapor regeneration effect of the low-temperature pump is optimal.

The invention discloses anti-cracking formaldehyde-free benzene-free gypsum. The gypsum is prepared from the following raw materials by weight: 450 to 500 kg of gypsum, 500 to 550 kg of fine sand, 2.5to 3 kg of MC, 0.8 to 1.8 kg of a retarder, 5 to 8 kg of glutinous rice glue powder and 0.5 to 0.8 kg of starch ether. The gypsum is formaldehyde-free, benzene-free, VOC-free and odorless, has the advantages of early strength, rapid hardening, light weight, heat preservation, heat insulation, fire resistance and sound insulation of building gypsum, also has the characteristics of good construction workability, high bonding strength, difficulty in hollowing and cracking, also has a breathing function, can adjust the air humidity and improve the living room environment, and is healthy, green and environment-friendly.

The invention discloses a production technology of a metal net rock wool plate. Through matched optimization of a rock wool plate structure and a production mode, the metal net rock wool plate which is simple in structure, excellent in performance and high in quality safety is obtained. According to the production technology, the production rate can be significantly increased, the production costis saved, and the quality and performance of a rock wool plate product are optimized and improved so as to meet the higher standard requirements for light heat-preservation materials. The equipment structure is further improved in the technology optimizing process, a specific mechanical arm with attached transverse forks is adopted, thus the time and labor are saved during operation, the stabilityof a composite rock wool sample plate can be significantly enhanced, and the quality is improved. The obtained metal net rock wool plate can show significant advantages in the aspects of fire prevention, flame retardance, building energy conservation and resistance to cast-in-situ concrete side pressure deformation, in the aspect of having the same service life as a building, in the aspects of not being liable to hollow, crack and fall off, and in other aspects.

The invention discloses liquid tile glue and a preparation method of the liquid tile glue. The liquid tile glue mainly comprises acrylic acid copolymer emulsion, styrene-acrylic emulsion, polyvinyl alcohol, modified polyoxyethylene, a thickening agent, a wetting agent, other assistants, and deionized water. According to the liquid tile glue, specific kinds and contents of the assistants and the wetting agent are selected, the performance of the liquid tile glue can be improved significantly; the liquid tile glue is good in bonding strength, water resistance, ageing resistance and freeze-thawing resistance, can effectively improve and increase construction efficiency and yield and is worthy of popularization and application in production.

The invention discloses anti-crack mortar and a preparation method thereof and relates to the technical field of construction mortar. The anti-crack mortar disclosed by the invention is prepared from light aggregate, cement, talc powder, wollastonite, asbestos powder, nut shell, kieselguhr, phenol-formaldehyde resin, polyester fiber and an anti-crack agent, wherein the anti-crack agent is prepared by mixing vegetable oil, carbon fiber and epoxy resin. The anti-crack mortar disclosed by the invention has relatively high bonding strength and compressive strength and excellent crack resistance while hollowing rarely occurs.

The invention discloses plastering gypsum mortar and a preparation method thereof. The plastering gypsum mortar comprises the following components in percentage by weight: 70%-80% of semi-hydrated gypsum, 0.95%-1.05% of vermiculite powder, 6%-10% of heavy calcium powder, 10%-18% of glass beads, 0.65%-1.15% of ash calcium, 0.15%-0.25% of cellulose ether, 0.04%-0.06% of starch ether, 0.02%-0.04% of an air entraining agent, 0.11%-0.14% of a retarder and 0.04%-0.06% of a thixotropic agent. The plastering gypsum mortar is high in coating rate, low in heat conductivity coefficient, good in heat preservation performance, low in shrinkage compared with cement mortar, free of hollowing and falling off after being smeared on a wall and good in construction performance, greatly saves the material consumption and further reduces the material use cost, and is the best environment-friendly plastering material for replacing existing plastering mortar including the cement mortar.

The invention belongs to the technical field of building materials, and relates to a novel coating for building wall surfaces. The novel coating is composed of the following components in percentage by mass: 25-35% of silicon dioxide fiber, 30-50% of perlite micro powder, 10-20% of hollow glass beads and 20-30% of sericite powder. The coating replaces cement mortar to be smeared on the surface of a building, so that the wall surface is flat and smooth, the coating property is stable, and the heat insulation and sound insulation effects are good.