31results about How to "No empty drum" patented technology

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 high performance epoxy resin waterproof coating which comprises components A and B, wherein the component A comprises the following raw materials in parts by weight: 95-105 parts of epoxy resin, 10-15 parts of an active diluent, 2-5 parts of a surfactant, 1-2 parts of a defoamer, 1-2 parts of a flatting agent, 2-5 parts of an anti-settling agent, 3-5 parts of a plasticizer and 250-300 parts of functional filler; the component B comprises the following raw materials in parts by weight: 20-30 parts of a modified polyether amine curing agent, 10-20 parts of a modified aliphatic polyamine curing agent and 3-4 parts of a coupling agent. The high performance epoxy resin waterproof coating provided by the invention has considerably high elongation at break, tensile strength and chemical resistance. Experiments verify that the elongation at break of the high performance epoxy resin waterproof coating provided by the invention can reach over 80%, the tensile strength can reach over 12MPa, and the humid substrate bonding strength can reach over 4MPa. The coating which is soaked by an H2SO4 aqueous solution for 15 days is free of cracks, empty bumps and falling.

Disclosed desulfurized-gypsum-base lightweight spraying gypsum mortar is composed of the following compositions in parts by weight: 50-65 parts of desulfurized gypsum, 20-30 parts of building sand, 3-5 parts of vitrified microsphere, 10-20 parts of stone powder, 0.1-0.5 part of a retarder, 0.1-0.3 part of cellulose ether, 0.02-0.04 part of an air-entraining agent, and 0.05-0.1 part of starch ether. The desulfurized-gypsum-base lightweight spraying gypsum mortar employs mechanical spraying for construction, possesses the dry density less than 1000 Kg / m<3>, the heat-conduction coefficient of 0.20 W / (m*K) and the compressive strength lager than 4.0 MPa, and possesses the characteristics of being light in weight, low in heat-conduction coefficient, high in strength and suitable for mechanical spraying construction, and the like.

The dry mixed polymer mortar consists of quartzite 60-65 wt%, cement 20-25 wt%, limestone powder 8-12 wt%, amylase 3-3.5 wt%, thixotropic bentonite lubricant 1-3 wt%, organic silicon compound 1.5-2.0wt%, hydrophobic agent 0.15-0.20 wt%, methyl cellulose 0.20-0.30 wt% and cellulose fiber 0.30-0.60 wt%. It is one kind of green furnishing and decorating material and has the features of light weight, high strength, high adhesion, being fireproof, etc.

The invention discloses a wind resistance and heat preservation EPS board outer wall structure which comprises a wall body, a galvanized steel wire netting, a bonding layer, an EPS heat preservation plate layer, a gridding cloth, an elastic coating and anchor bolts. The wind resistance and heat preservation EPS board outer wall structure is characterized in that composite mortar is laid on the inner side of a wall body, a plastering layer is arranged on the outer side of the wall body, the galvanized steel wire netting is laid inside the plastering layer, the EPS heat preservation plate layer is stuck to the outer side of the plastering layer, the thickness of an adhesive layer stuck to the surface of the heat preservation plate is controlled to be 4-5 mm, the anchor bolts penetrate through EPS heat preservation plates, the galvanized steel wire netting is fixed to the outer side of the wall body, each EPS heat preservation plate is provided with two anchor bolts and installed on a middle line, the anchor bolts press the bottom layer gridding cloth to form a fire barrier, and the gridding cloth and elastic coating are stuck to the outer sides of the EPS heat preservation plates. The construction method comprises the steps of base layer wall treatment, sticking of the heat preservation plates and the base layer, fixing of the fire barrier, auxiliary fixing of the heat preservation plates, sticking of the gridding cloth and a facing layer, and field testing and inspection.

The invention provides a thin plastering mortar material and a preparation method thereof aiming at the defects existing in the quality and construction of existing interior wall plastering, and belongs to the technical field of interior wall building materials. The plastering mortar material consists of cement, quartz sand of 40 mesh <= particle size <70 mesh, quartz sand of 70 mesh <= particle size <100 mesh, quartz sand of 100 mesh <= particle size <140 mesh, 150 mesh quartz sand, hydroxypropyl methyl cellulose, starch ether, air entraining agent, water reducing agent, defoaming agent, thixotropic lubricant, rubber powder, water repellent agent, 3 mm polypropylene short fiber, 6 mm polypropylene short fiber and wood fiber. The use mount of the plastering mortar material is about one-fifth of a traditional material, the plastering thickness is not less than 2.5 mm, the strength of plastering mortar is high, the construction work of workers is reduced, the construction cost is reduced, wall surfaces after construction are smooth, emulsion paint can be brushed without the need to apply putty on the wall surfaces, and the construction work and the construction cost are further reduced.

The invention provides a construction method of an insulating and waterproof integrated system for a foam concrete roof. The method comprises the following steps: 1, pouring foam concrete according to gradient, average thickness and energy-saving technical indexes required by design to finish construction of a slope finding and insulating layer of the cast-in-situ foam concrete; 2, dividing the slope finding and insulating layer of the cast-in-situ foam concrete into a plurality of paved regions, pre-paving one of the paved regions, pouring polymer cement glue onto the paved region, coiling a bearing waterproof roll on a sleeve, and pushing the sleeve to enable the bearing waterproof roll to be tightly attached to the polymer cement glue, the overlap joint of the bearing waterproof roll between two adjacent paved regions to be tightly adhered through the polymer cement glue, and construction of a polymer cement glue bonding layer and the bearing waterproof roll layer to be finished; and 3, pouring anti-crack mortar on the bearing waterproof roll layer to finish construction of an anti-crack mortar protecting layer. The construction method provided by the invention is short in construction work period, small in roof load and good in waterproof and insulating effect.

The invention discloses tile type roof waterproof heat-insulating binding mortar. The tile type roof waterproof heat-insulating binding mortar consists of a powder material component and a liquid material component in the mass ratio of 1:0.8; the powder material component comprises the following components in parts by mass: 1 to 50 parts of cement, 20 to 80 parts of sand, 0.5 to 2 parts of dispersible latex powder, 0.5 to 5 parts of cellulose ether, 0.1 to 5 parts of a waterproof agent, 1 to 20 parts of glass fibres and 10 to 30 parts of glass micro-beads; the liquid material component is acrylate emulsion. The invention also discloses a preparation method of the mortar. The tile type roof waterproof heat-insulating binding mortar disclosed by the invention can be widely applied to construction of a characteristic town tile type roof and a common tile type roof, has water resistance, heat insulating property, toughness, crack resistance and durability that common cement mortar does nothave, and is convenient to construct.

An outer wall heat preservation system is composed by the outer wall, HCM layer, HCM gel with polybenzene granular, protection layer and face layer. Process steps includes: base wall treatment; coating HCM to the treated base wall; coating HCM gel with polybenzene granular and standing for dry; coating HCM cement and sand slurry and press on HCM glass fiber texture; coating a secondary layer of HCM cement and sand slurry to form a protection layer; coating HCM and water proof putty.

The invention provides ardealite-based lightweight plastering gypsum and a preparation method thereof, and the plastering gypsum comprises the following raw materials by mass: 30.1- 70.5% of calcined ardealite and alum, 4.5-15.5% of cement, 14.5-45.5% of ground calcium carbonate, 4.5-12.5% of vitrified microbeads, 0.01-1.0% of cellulose, 0.1-2.0% of a coupling agent, 0.01-1.0% of a tackifier, and 0.01-1.5% of a retarder. The calcined ardealite and the alum are formed by mixing and calcining alunite raw ore and ardealite. The semi-hydrated-anhydrite mixed-phase gypsum cementing material prepared through calcination can utilize the hydration characteristics of two gypsum phases, fully exerts the advantages of the two gypsum phases, provides a new way for large-scale utilization of phosphogypsum, and has good environmental and economic benefits.

The invention discloses a waterproof plastering gypsum and a preparation method thereof, and relates to the technical field of plastering gypsum. The waterproof plastering gypsum comprises the following raw materials in parts by weight: 85-95 parts of natural gypsum, 25-35 parts of mineral ash, 20-25 parts of natural stone powder, 20-25 parts of an aldehyde remover, 15-20 parts of an assistant, 10-15 parts of vitrified micro-bubbles and 90-120 parts of water. According to the invention, the problems that the existing plastering gypsum is poor in water resistance and easy to mildew and fall offdue to damp are solved.

The invention discloses a bridge component collision damage restoration method, and belongs to the technical field of bridge restoration. The method comprises the following steps that a collision damage position is carefully inspected; if the collision only occurs on the surface, a damage party can perform repair operation; then, broken and loose concrete in the collision damage position can be chiseled away; deformation or fracture steel bars and steel twisted lines are connected and are subjected to anti-rust treatment; then, epoxy resin glue liquid used for glue bonding is brushed and coated on the surfaces of the steel bars and steel twisted lines; after bubbles of the epoxy resin glue liquid to be brushed and coated are eliminated, a mixture of epoxy mortar and high-intensity concrete can be gradually and compactly loaded into the repair region in a small amount and multilayer mode; leveling is performed; then, after the initial set of the mixture, a steel plate in the proper shape is cut according to the fold line length of the damaged edge and corners of the collision position; the collision damage position is subjected to corner covering treatment; then, the steel plate surface is subjected to paint brushing anti-rust treatment; warning paint is brushed and coated. The method is used for performing fast, effective and practical restoration on a bridge.

The invention discloses an environment-friendly heat insulation coating and belongs to the field of coatings. The environment-friendly heat insulation coating comprises the following components in parts by weight: 25-40 parts of fluorinated acrylic emulsion, 3-15 parts of titanium dioxide, 5-15 parts of a colorized hollow ceramic micro-bead, 0.3-1.0 part of a defoaming agent, 0.6-1.5 parts of a thickening agent, 0.08-0.25 part of propylene glycol, 0.5-2.0 parts of a dispersant and 25-45 parts of deionized water. The environment-friendly heat insulation coating disclosed by the invention has the beneficial effects of good in base material bonding strength, no empty drums, no falling, good toughness, high elongation rate, good waterproofness and long service life; the adopted colorized hollow ceramic micro-bead has various colors, and no pigments are added for regulating the color, so the toxicity and organism volatility of the coating are reduced.

The invention discloses a cap, a protective cover and a production method thereof. The cap comprises a cap body and a visor, and a first magnetic part is mounted on the lower surface and / or the interior of the visor and is used for being connected with a mask which is mounted below the visor and is provided with a second magnetic part through magnetic attraction. According to the cap, on the premise that a wearer does not take down the cap, the mask and the cap can be assembled and disassembled with one hand, and the cap is very convenient to use. The production method of the cap is quite ingenious in conception and has high production efficiency, the quality of the cap is guaranteed, and low production cost can be kept.

The invention provides an interface treatment agent for a glass reinforced plastic enhanced prestressed concrete cylinder pipe (PCCP), and belongs to the technical field of glass reinforced plastic enhanced PCCPs. The interface treatment agent is prepared from the following components in percentage by weight: 70 percent to 75 percent of vinyl resin, 3 percent to 5 percent of flexible resin, 3 percent to 4 percent of styrene, 0.5 percent to 1 percent of a de-foaming agent, 1 percent to 2 percent of a silane coupling agent, 1 percent to 3 percent of fumed silica, 4 percent to 6 percent of 200-mesh aluminum hydroxide, 6 percent to 8 percent of 70-mesh to 100-mesh aluminum hydroxide and 0.5 percent to 1 percent of an accelerant. The invention further discloses application and a method of the interface treatment agent to concrete pipelines. The interface treatment agent provided by the invention can be used for tightly combining a cylinder of the PCCP, cement concrete, glass reinforced plastic and polymer concrete, and the integrity and the strength of a polymer concrete pipeline are improved.

The invention relates to walls, roof surfaces, and stilt floor slabs of industrial and civil buildings, in particular to a construction method for control insulation layers of step type equal height insulation laths. The invention is characterized in that the step type equal height insulation laths are connected on a base course wall through bonding agent to form reference control, then a polyurethane hard foam insulation layer is spray coated and a slurry material insulation layer is applied between two step type equal height insulation laths, so as to realize the effective control of the layer thickness and the overall thickness of the insulation layers. The polyurethane hard foam insulation layer is spray coated according to the height of a first step H1 of the step type equal height insulation laths, and the slurry material insulation layer is applied according to the height of a second step H2 of the step type equal height insulation laths. The width of the step type equal height insulation laths is 70 to 120 mm. The invention has the advantages that the application of the step type equal height insulation laths realizes the effective control to the thickness of the two insulation materials in the construction process; after the polyurethane hard foam insulation layer is spray coated, the surface is not required to be finished, thereby the labor intensity is reduced, the working time is saved and the environment pollution caused by construction waste generated by finishing the surface is reduced; the insulation layers have good insulation integrity and consistent thermal performance, edge joints and a hot bridge effect of large thickness insulation layers of EPS, etc. can be avoided, and the high efficiency and the energy conservation can be realized.

The invention relates to walls, roof surfaces, and stilt floor slabs of industrial and civil buildings, in particular to a construction method for control insulation layers of step type equal height insulation laths. The invention is characterized in that the step type equal height insulation laths are connected on a base course wall through bonding agent to form reference control, then a polyurethane hard foam insulation layer is spray coated and a slurry material insulation layer is applied between two step type equal height insulation laths, so as to realize the effective control of the layer thickness and the overall thickness of the insulation layers. The polyurethane hard foam insulation layer is spray coated according to the height of a first step H1 of the step type equal height insulation laths, and the slurry material insulation layer is applied according to the height of a second step H2 of the step type equal height insulation laths. The width of the step type equal height insulation laths is 70 to 120 mm. The invention has the advantages that the application of the step type equal height insulation laths realizes the effective control to the thickness of the two insulation materials in the construction process; after the polyurethane hard foam insulation layer is spray coated, the surface is not required to be finished, thereby the labor intensity is reduced, the working time is saved and the environment pollution caused by construction waste generated by finishing the surface is reduced; the insulation layers have good insulation integrity and consistent thermal performance, edge joints and a hot bridge effect of large thickness insulation layers of EPS, etc. can be avoided, and the high efficiency and the energy conservation can be realized.

The invention relates to a fireproof and waterproof heat insulation construction material of solar energy phase transition heat accumulation, which has the following technical essentials: sequentiallyadding a certain amount of phase transition heat accumulation and heat insulation material, fly ash, light expanded vermiculite powder or light calcium powder, cement reinforcing agent and calcium oxide into a mixing trough; evenly mixing the materials by stirring at normal temperature; then, keeping stirring and sequentially adding common portland cement, an impervious waterproof agent, fatty acid zinc or fatty acid calcium as a hydrophobing agent, dihydrocalcite and ferrous sulfate or ammonia chloride as a thickening agent; fully mixing the materials evenly by cyclone separation; and packing the mixture to obtain a finished product. The heat insulation construction material of the invention has good effects of heat insulation, heat accumulation and energy saving, light volume weight (350-550 kilograms / cubic meter), large density, high strength and small heat transfer coefficient; and after freezing and thawing tests for 60 times and circulation from 20 DEG C to -40 DEG C, the heat insulation construction material has no abnormality and can meet the energy saving index of 65%. The fly ash which is a serious public nuisance is fully utilized as a renewable resource to produce theenvironment-friendly heat insulation construction material.

The invention discloses a bonding method of a flexible veneer. At present, a construction technology for novel external wall veneer materials in the market basically follows the construction technology of tile veneering. Small-size veneers are adopted for being bonded, and the construction technology has the defects that veneers are prone to bulging to form cavities inside and falling, low in strength, low in construction efficiency and the like. When the size of a veneer material is larger than 1.22 m *2.44 m, the construction technology cannot be used conveniently. According to the bonding method, the flexible veneer is wound through a reel and then is bonded to a wall, the purpose of bonding the large flexible veneer material to the wall at a time is achieved, the bonding method has the advantages that the bonded veneer material is compact, firm, free of bulging cavities, flat, high in construction efficiency and the like, the problems that an existing bonding method is prone to forming bulging cavities and falling, low in strength, low in construction efficiency and the like are solved, and the common quality problems such as bulging cavities, falling and unflatness are avoided.

The invention relates to novel efficient and fireproof inside and outside heat insulation wallboard slurry, mainly prepared by evenly mixing and stirring the following raw materials in parts by weight: 6-12 parts of magnesium oxide, 3-10 parts of semi-hydrated gypsum, 0.6-1 part of a flame retardant, 3-8 parts of a stimulator, 19-28 parts of cement, 0.12-0.38 part of a waterproof agent, 0.01-0.33 part of polypropylene (PP) fiber and 9-15 parts of water. The novel efficient and fireproof inside and outside heat insulation wallboard slurry has the advantages of sound insulation and noise reduction, heat insulation, fire prevention and moisture prevention, light weight and shock resistance, high strength, and the like.

The invention relates to the field of building exterior wall fireproofing, insulation and decoration, in particular to a grade-A fireproofing, insulation and decoration integrated combined hanging board of a building exterior wall. The hanging board comprises middle frames, a panel is connected outside each frame, and an insulation board is connected inside each frame; each frame is fixedly hang on the outer wall through an adjustable fixing part. The single hanging plate which is integrated and assembled into a small-unit independent bearing structure in factories and mounted on site via dry-hanging mode is a novel exterior wall fireproofing, insulation and decoration combined material. The hanging board has the advantages of small size, light weight, low cost and good fireproofing effect.

The invention discloses a carbon fiber reinforcement technology for corrosion and protection of a petrochemical device. The carbon fiber reinforcement technology comprises the following steps of step one, pretreating the inner surface of a pipe wall defect, and polishing the surface of a substrate until no attachment exists; secondly, performing filling and leveling treatment on the defect part by using a repairing agent; thirdly, fully filling a part where the repairing agent is fully filled and the surface of periphery pipe body with epoxy resin glue; fourthly, winding carbon fiber composite material cloth at a part where the epoxy resin glue is fully filled. The carbon fiber reinforcement technology disclosed by the invention has the characteristics of good sticking property, no layering and no hollowing and cracking in the process that a repairing material is repeatedly used for a long time; in addition, the galvanic corrosion resistance between the repairing material and the pipeline can be guaranteed by the reinforcement technology disclosed by the invention; meanwhile, the carbon fiber reinforcement technology also has the characteristics that technical steps are simple, the repairing material is good in curing effect and the like.

The invention discloses a bridge component collision damage restoration method, and belongs to the technical field of bridge restoration. The method comprises the following steps that a collision damage position is carefully inspected; if the collision only occurs on the surface, a damage party can perform repair operation; then, broken and loose concrete in the collision damage position can be chiseled away; deformation or fracture steel bars and steel twisted lines are connected and are subjected to anti-rust treatment; then, epoxy resin glue liquid used for glue bonding is brushed and coated on the surfaces of the steel bars and steel twisted lines; after bubbles of the epoxy resin glue liquid to be brushed and coated are eliminated, a mixture of epoxy mortar and high-intensity concrete can be gradually and compactly loaded into the repair region in a small amount and multilayer mode; leveling is performed; then, after the initial set of the mixture, a steel plate in the proper shape is cut according to the fold line length of the damaged edge and corners of the collision position; the collision damage position is subjected to corner covering treatment; then, the steel plate surface is subjected to paint brushing anti-rust treatment; warning paint is brushed and coated. The method is used for performing fast, effective and practical restoration on a bridge.

The present invention relates to a calcium-increased type mortar blending material, its preparation method and application method. Said mortar blending material contains (by wt%) 69-89% of fly ash, 0.5-1.5% of anhydrous sodium sulfate, 0.05-0.2% of silane coupling agent, 0.03-0.07% of triethanolamine, 10-30% of quicklime powder, 0.005-0.1% of building cured adhesive powder, 0.01-0.02% of polyvinyl alcohol powder and 0.01-0.05% of lignocellulose. Besides, said invention also provides the concrete steps of its preparation method and application method.

The embodiment of the invention provides an integrated bathroom. The integrated bathroom comprises a chassis and a plurality of wall plates. The wall plates comprise chassis main bodies and chassis ceramic tiles, the chassis main bodies comprise ultra-high performance cement-based composite material layers, the chassis ceramic tiles and the chassis main bodies are integrally poured and formed, and the chassis main bodies are used for being arranged on the ground; each wall plate comprises a wall plate main body and a wall plate ceramic tile, the multiple wall plate main bodies of the multiple wall plates are sequentially connected, the wall plate main bodies comprise ultra-high performance cement-based composite material layers, and the wall plate ceramic tiles and the wall plate main bodies of each wall plate are integrally poured and formed; and the lower ends of the wall plate main bodies are detachably mounted on the edges of the chassis main bodies. According to the integrated bathroom, ultra-high performance cement-based composite materials are used as materials of the chassis main bodies and the wall plate main bodies, the cost is low, the chassis and the wall plates are integrally poured and formed correspondingly, the chassis ceramic tiles and the wall plate ceramic tiles are not prone to falling off, the chassis and the wall plates do not have the problems of hollowing and vibration, the strength of the chassis and the wall plates is high, the overall thickness of the chassis and the wall plates is small, and the occupied indoor space is small.

The invention discloses a bonding method of a flexible veneer. At present, a construction technology for novel external wall veneer materials in the market basically follows the construction technology of tile veneering. Small-size veneers are adopted for being bonded, and the construction technology has the defects that veneers are prone to bulging to form cavities inside and falling, low in strength, low in construction efficiency and the like. When the size of a veneer material is larger than 1.22 m *2.44 m, the construction technology cannot be used conveniently. According to the bonding method, the flexible veneer is wound through a reel and then is bonded to a wall, the purpose of bonding the large flexible veneer material to the wall at a time is achieved, the bonding method has the advantages that the bonded veneer material is compact, firm, free of bulging cavities, flat, high in construction efficiency and the like, the problems that an existing bonding method is prone to forming bulging cavities and falling, low in strength, low in construction efficiency and the like are solved, and the common quality problems such as bulging cavities, falling and unflatness are avoided.

A mortar spreader for laying floor tiles comprises a thick iron plate (1), wherein a connecting rod (3) is perpendicularly arranged on the upper portion of the thick iron plate (1), a handle (2) is arranged at the top end of the connecting rod (3), and vertically downward sawteeth (5) are arranged on the two sides of the thick iron plate (1). The mortar spreader is easy to make, convenient to operate, high in construction speed and capable of meeting using requirements.

The invention discloses a light composite thermal insulation board for fabricated building. The light composite thermal insulation board for fabricated building comprises fireproof layers and thermal insulation layers, surfaces of the fireproof layers are in glued connection with surfaces of the thermal insulation layers, a filling groove is formed in an inner cavity of the fireproof layers, and an inner cavity of the filling groove is filled with a fireproof filling material; and the inner cavity of the fireproof layers is fixedly connected with fixing plates, and one sides of the fixing plates are fixedly connected with inserting rods. The invention relates to the technical field of thermal insulation boards. In the light composite thermal insulation board for fabricated building, the fixing plates and the inserting rods are arranged in the thermal insulation layers, the fixing plates and the inserting rods are subjected to one-time machining forming with the thermal insulation layers, the fireproof layers are subjected to machining forming, after the filling groove is formed, the inserting rods are inserted into the fireproof layers, and adhesive glue is applied on the fireproof layers and the thermal insulation layers to be bonded together, inserting bolts are screwed into the inserting rods, such that assembly can be rapidly completed, fireproof and thermal-insulating effects can be achieved at the same time, the use range is wider, and strength of the thermal insulation board is effectively improved.

The invention provides a construction method of an insulating and waterproof integrated system for a foam concrete roof. The method comprises the following steps: 1, pouring foam concrete according to gradient, average thickness and energy-saving technical indexes required by design to finish construction of a slope finding and insulating layer of the cast-in-situ foam concrete; 2, dividing the slope finding and insulating layer of the cast-in-situ foam concrete into a plurality of paved regions, pre-paving one of the paved regions, pouring polymer cement glue onto the paved region, coiling a bearing waterproof roll on a sleeve, and pushing the sleeve to enable the bearing waterproof roll to be tightly attached to the polymer cement glue, the overlap joint of the bearing waterproof roll between two adjacent paved regions to be tightly adhered through the polymer cement glue, and construction of a polymer cement glue bonding layer and the bearing waterproof roll layer to be finished; and 3, pouring anti-crack mortar on the bearing waterproof roll layer to finish construction of an anti-crack mortar protecting layer. The construction method provided by the invention is short in construction work period, small in roof load and good in waterproof and insulating effect.