CN109184093B - Roof flashing construction method and concrete stirring device - Google Patents
Roof flashing construction method and concrete stirring device Download PDFInfo
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- CN109184093B CN109184093B CN201810900168.6A CN201810900168A CN109184093B CN 109184093 B CN109184093 B CN 109184093B CN 201810900168 A CN201810900168 A CN 201810900168A CN 109184093 B CN109184093 B CN 109184093B
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- coiled material
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
- E04D13/00—Special arrangements or devices in connection with roof coverings; Protection against birds; Roof drainage; Sky-lights
- E04D13/04—Roof drainage; Drainage fittings in flat roofs, balconies or the like
- E04D13/0404—Drainage on the roof surface
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28C5/00—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions
- B28C5/08—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions using driven mechanical means affecting the mixing
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28C5/00—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions
- B28C5/08—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions using driven mechanical means affecting the mixing
- B28C5/0806—Details; Accessories
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
- E04D11/00—Roof covering, as far as not restricted to features covered by only one of groups E04D1/00 - E04D9/00; Roof covering in ways not provided for by groups E04D1/00 - E04D9/00, e.g. built-up roofs, elevated load-supporting roof coverings
- E04D11/02—Build-up roofs, i.e. consisting of two or more layers bonded together in situ, at least one of the layers being of watertight composition
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- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Mechanical Engineering (AREA)
- On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
- Preparation Of Clay, And Manufacture Of Mixtures Containing Clay Or Cement (AREA)
Abstract
The invention discloses a roof flashing construction method and a concrete stirring device, wherein the construction method comprises the following steps: (a) measuring in an early stage; (b) laying a waterproof layer; (c) carrying out base layer treatment; (d) manufacturing a mould; (e) concrete flashing; (f) protecting a finished product; (g) checking and maintaining; the stirring device comprises a first support, a second support, a stirring mechanism and a material receiving mechanism, a motor is arranged on the first support, one end of the motor is connected with a transmission mechanism, a first transmission assembly is connected onto the transmission mechanism, a second transmission assembly is arranged on the second support, an axial connecting rod is arranged between the first support and the second support, the stirring mechanism is arranged on the axial connecting rod, and the first transmission assembly and the second transmission assembly are movably connected with the stirring mechanism. The invention has the advantages of simple construction, easy control of construction quality, low construction cost, less related construction equipment, good waterproof effect of the formed flashing structure, good integrity, high appearance quality and long service life.
Description
Technical Field
The invention relates to a roof flashing construction method and a concrete stirring device.
Background
Flashing, i.e. the waterproof construction between the roof waterproof layer and the protruding structure. The waterproof layer of the roof is extended to the vertical surfaces at the joints of the parapet walls, chimneys, staircases, deformation joints, access holes, vertical pipes and the like protruding above the roof and the roof to form a vertically paved waterproof layer, which is called flashing. Flashing is a waterproofing process in buildings, which is generally speaking, waterproofing treatment is carried out on walls and roofs, namely, at the intersection of all flat vertical surfaces needing waterproofing treatment, and the corners of the walls are wrapped by waterproof materials. Unlike water dispersion. Flashing is a waterproof structure which is used for preventing the leakage of the joint of a horizontal floor or a horizontal roof and a vertical wall surface and is turned upwards along the vertical surface by a horizontal plane.
The phenomenon of ageing fracture appears in traditional roofing flashing department easily, and traditional roofing flashing structure's construction speed is slower, the work progress is loaded down with trivial details moreover, leads to the time limit extension, construction cost greatly increased, still has that the service life is short, water-proof effects is poor, the roofing is whole to feel the problem such as effect difference, cost of maintenance height, urgent need improve.
Disclosure of Invention
The invention aims to solve the technical problems in the prior art, and provides a roof flashing construction method and a concrete stirring device, which have the advantages of simple construction, convenient operation, easy control of construction quality, low construction cost, less related construction equipment, good waterproof effect of a formed flashing structure, good integrity, high appearance quality and long service life.
In order to solve the technical problems, the invention adopts the following technical scheme:
a roof flashing construction method is characterized by comprising the following steps:
(a) measurement in the early stage: bouncing a horizontal marking line on a parapet wall, bouncing a roof straightness control line on a drainage ditch, respectively leaving a blue mark and a red mark at 500mm and 520mm elevations of the parapet wall, reserving a groove of 3 mm-5 mm in the parapet wall at the blue mark, and using a brick to flip a line of 50mm and 50mm at the red mark to form a dripping eave, wherein the thickness of a plastering layer of the dripping eave is 12 mm-15 mm, a small groove with the width of 8mm is left in the lower edge, and bouncing and controlling a base layer through the elevation and plane control lines, so that the straightness and the flatness of the flashing construction are ensured, and the effect after the flashing construction is also ensured;
(b) laying a waterproof layer: arranging a C20 fine stone concrete fillet at the joint of a parapet wall and a roof panel, wherein the radius of the circle where the fillet is located is 120-150 mm, determining the direction of laying a waterproof coiled material according to the measured roof slope, laying the waterproof coiled material by adopting a full-adhesion method, pressing the end part of the coiled material after being trimmed into a reserved groove, pressing and fixing the waterproof coiled material by using a phi 6mm expansion nail with a gasket, filling the waterproof coiled material with C20 fine stone concrete to be compact, arranging a precast concrete panel with the thickness of 25-35 mm between the groove and a water dripping eave, and laying a 50-70 mm waterproof coiled material on the upper part of the joint of the precast concrete panel;
(c) base layer treatment: cleaning floating slag and sundries on the waterproof coiled material on the vertical surface of the parapet in the flashing area, ensuring that water traces on the surface of the waterproof coiled material are cleaned, checking the bonding degree of the waterproof coiled material with a roof panel and the parapet, leveling and pressing the parts with folds, fixing the parts with cement nails of phi 250, fixing the parts with raised edges, and fixing the parts with cement nails of phi 250 at the upper opening of the parts, thereby well solving the common quality problem of sticking the waterproof coiled material, improving the construction quality and the flashing effect;
(d) manufacturing a mould: the material of the mould selects the remaining block board, wood block and decorative wood line of the building site decoration, the assembly is firmly fixed by cement nails, the on-site cement paste preparation is carried out on the pre-calculated mixing proportion, the concrete is stirred and manufactured by a concrete stirring device, when the grout is stirred in a stirring barrel, clear water is firstly added, then the cement, water reducing agent gypsum and sand are sequentially fed, the sand is selected from medium sand, the mud content is less than 3 percent, the concrete grout formed in the stirring process directly flows into a collecting hopper through a sieve mesh, the concrete grout in the collecting hopper is collected and poured into a mould groove of the mould, the test is carried out in batches, the turnover rate of the mould is checked, the mould with the turnover rate of less than 8 times is eliminated, the qualified mould is used for manufacturing the flashing member, the demoulding agent is firstly coated on the inner surface of the mould, then the concrete grout is poured, the manufacture of the mould and the flashing member is not restricted by site and climate conditions, the project department prepares in advance and has no influence on the construction period;
(e) concrete flashing: after concrete slurry in a mold is kept stand for 48 hours, taking out a formed flashing member, brushing a layer of building base oil on a waterproof coiled material, paving and pasting the flashing member, cleaning the joint of the flashing member after paving and pasting, plugging a foam strip, pasting pattern paper along the outer edge of the flashing member, driving weather-resistant sealant, uniformly and smoothly smearing with fingers, after the sealant is condensed, painting cement mortar on the surface of a flashing area, controlling the thickness to be 5mm, painting for three times, wetting with water thoroughly before painting, controlling the material, paving and finishing the flashing member to meet the requirement of appearance quality;
(f) protecting a finished product: after the construction is finished, covering the flashing area with a blanket, watering and maintaining in time, wherein the maintenance time is longer than 12 hours, the covering material is ensured to be wet during the maintenance period, and idle people are prohibited from trampling on the roof or continuing construction on the roof, so that the qualification rate of finished products is improved, and the reworking of the finished products is reduced;
(g) and (4) checking and maintaining: checking the upper and lower parts of the parapet and the waterproof coiled material, chiseling a crack with the width of 8-10 mm at the crack of the coping concrete of the parapet, cleaning the crack, enabling the edge to be vertical, pouring waterproof ointment into the crack, covering a white iron sheet on the surface, and fixing one side of the waterproof ointment; for the vertical crack of the parapet wall, filling asphalt hemp threads in the crack; for the cracking part on the upper part of the flashing, removing an external painting layer, sealing the head of the waterproof layer by using factice after the parapet masonry is dried, sealing the head by using C20 fine stone concrete, painting a surface layer by using the same material and performing fillet transition treatment on the turning part; for the horizontal displacement of the cracking part and the parapet wall at the lower part of the flashing, the professional is required to do the design and the treatment again, and the treatment of the flashing leakage part follows the principle of no damage to the main structure and the appearance of the house, effective blocking of the leakage source, convenient construction, economy and reasonableness.
Further, when the roof slope is less than 3% in step (b), the parallel roof ridge of waterproofing membrane is spread and is pasted, and when the roof slope is greater than 3%, the perpendicular roof ridge of waterproofing membrane is spread and is pasted, and used waterproofing membrane is high polymer modified asphalt coiled material, and the temperature resistance is good, and thickness is thin, does not have the trickling problem, and parallel roof ridge is spread and is pasted and have following several advantages: (1) one coiled material can be laid to the bottom, so that joints are reduced, and raw materials are saved; (2) the working surface is large, the construction speed is high, and the labor force is saved; (3) the lap joints of the long edges of the coiled materials are all perpendicular to the water flowing direction of the roof slope, so that water leakage is not easy to occur; (4) the longitudinal tensile strength of the felt can be utilized to the maximum extent, and the anti-cracking capability of the roof is improved.
Further, in the process of pouring the parapet wall in the step (b), arranging constructional columns in the parapet wall at intervals of 1.2-1.5 m along the horizontal direction, reserving a 10-15 mm telescopic buffer zone between the constructional columns and the roof panel, filling asbestos wires in the telescopic buffer zone, arranging double constructional columns on the parapet wall with the length exceeding 32m, reserving 15-18 mm expansion joints, filling asphalt hemp threads in the expansion joints, and caulking the joints by using factice; two phi 8mm constructional steel bars are embedded into the parapet with the height of more than 550mm every 500mm, cracking caused by temperature deformation of the parapet is reduced, and the leakage range is reduced.
A concrete mixing device of a roof flashing construction method is characterized in that: the automatic material collecting device comprises a first support, a second support, a stirring mechanism and a material collecting mechanism, wherein a supporting platform is arranged between the first support and the second support, the material collecting mechanism is arranged on the supporting platform, a motor is arranged on the first support, one end of the motor is connected with a transmission mechanism, a first transmission assembly is connected onto the transmission mechanism, the first transmission assembly rotates on the first support, a second transmission assembly is arranged on the second support, an axial connecting rod is arranged between the first support and the second support, the stirring mechanism is arranged on the axial connecting rod, and the first transmission assembly and the second transmission assembly are both movably connected with the stirring mechanism; the stirring device has the advantages of simple structure, high flexibility, labor saving in carrying, availability everywhere, good stirring stability and high working efficiency, and the concrete formed by stirring has high quality and high strength and can be effectively put into construction operation.
Furthermore, first drive assembly includes first transfer line and first drive gear, and drive mechanism connects first transfer line, and second drive assembly includes second transfer line and second drive gear, is equipped with the cusp ring on the rabbling mechanism, and first drive gear and second drive gear are connected to the cusp ring, and first drive gear passes through the cusp ring and drives the rabbling mechanism and rotate, and second drive gear is driven by the rabbling mechanism and is rotated, improves the stability of rabbling mechanism.
Further, rabbling mechanism is including rotating wheel, (mixing) shaft and stirring vane, and stirring vane evenly distributed is on the (mixing) shaft, and the (mixing) shaft is located and is rotated on the wheel, rotates on the wheel locates the axial connecting rod, and first drive assembly drives and rotates the wheel rotation, and the (mixing) shaft is following the rotation, carries out evenly stirring through stirring vane to the grit mud in the agitator, forms the concrete.
Further, drive mechanism includes first runner, drive belt and second runner, and first runner and second runner are connected to the drive belt, and first transmission assembly is connected to the second runner, and first runner is connected to the motor, and the motor drives first runner and rotates, drives the rotation of second runner through the drive belt to realize that the second runner drives first transmission assembly and takes place to rotate, the transmission is stable, mutual noninterference.
Further, receiving agencies includes agitator and collecting hopper, agitator and collecting hopper structure as an organic whole, be equipped with the sieve between agitator and the collecting hopper, the collecting hopper is located on the supporting platform, be equipped with the sieve mesh on the sieve, the sieve can prevent that the large granule impurity and the hard piece of cement of sneaking into in the grit mud from entering into the collecting hopper, guarantee that the concrete quality that the stirring formed is high, and is strong, the concrete that the stirring formed directly flows into the collecting hopper through the sieve mesh in, the work of artifical dumping has been reduced, and labor cost is saved.
Furthermore, the supporting platform is provided with supporting rods, the aggregate bin is movably connected between the supporting rods, the supporting rods are provided with locking buttons, after the aggregate bin is filled with concrete, the locking buttons are loosened, the aggregate bin can be rotated to unload the concrete, and the structure is simple, light and convenient.
Further, the bottom of first support is equipped with moving mechanism, and moving mechanism includes fixed bolster and gyro wheel, and the gyro wheel symmetric distribution is in the both sides of fixed bolster, and moving mechanism's setting makes things convenient for the device to remove, and the transport is laborsaving, and everywhere is available, can carry out stirring work on the spot.
Due to the adoption of the technical scheme, the invention has the following beneficial effects:
the invention has simple construction, convenient operation, easy control of construction quality, low construction cost, less related construction equipment, good waterproof effect of the formed flashing structure, good integrity, high appearance quality and long service life, fundamentally prevents the occurrence of leakage phenomenon compared with the traditional flashing method, and adopts a scientific and reasonable method to treat the leakage part, thereby not only meeting the waterproof requirement of the roof waterproof structure, but also improving the durability of the roof flashing part, not needing to spend excessive manpower and material resources for periodic maintenance, and effectively solving the practical problems of short service life, easy occurrence of aging cracks, poor waterproof effect, poor integral appearance effect of the roof, high maintenance cost and the like of the traditional roof flashing.
The concrete stirring device used in construction has the advantages of simple structure, high flexibility, labor saving in carrying, availability anywhere, good stirring stability and high working efficiency, and the concrete formed by stirring has high quality and high strength and can be effectively put into construction operation.
Drawings
The invention will be further described with reference to the accompanying drawings in which:
FIG. 1 is a schematic structural view of a concrete mixing device for a roof flashing construction method according to the present invention;
FIG. 2 is a schematic view of the structure in the direction A of FIG. 1;
FIG. 3 is a schematic structural view of the first and second brackets connected to the stirring mechanism according to the present invention;
FIG. 4 is a schematic structural view of a stirring mechanism according to the present invention;
FIG. 5 is a schematic structural view of a receiving mechanism according to the present invention;
fig. 6 is a schematic structural view of the connection between the motor and the transmission mechanism in the present invention.
In the figure: 1-a first scaffold; 2-a second scaffold; 3-a stirring mechanism; 4-a material receiving mechanism; 5-a moving mechanism; 6-fixing a bracket; 7-a roller; 8-supporting the platform; 9-stirring barrel; 10-a collection hopper; 11-sieve plate; 12-sieve mesh; 13-a support bar; 14-a locking button; 15-a motor; 16-a transmission mechanism; 17-a first wheel; 18-a transmission belt; 19-a second wheel; 20-a first transfer lever; 21-a first drive gear; 22-a second transmission rod; 23-a second transmission gear; 24-an axial connecting rod; 25-a running wheel; 26-a stirring shaft; 27-stirring blades; 28-toothed ring.
Detailed Description
As shown in fig. 1 to 6, the roof flashing construction method of the present invention includes the following steps:
after the construction scheme is conceived, the project department technology is responsible for compiling the construction technical scheme of the flashing water and submitting the technical scheme to the design and supervision unit for examination, and the construction scheme is implemented after being approved by the company and the supervision unit after being completed according to the related rectifying and improving suggestions, so that the reasonable working procedures are ensured, the construction scheme is economic and feasible, the design and the set target are met, the scheme has better construction elements in the aspects of people, machines, materials, rings and the like through scheme compilation, examination and group planning, and the construction of the flashing water according to the target can be ensured.
(a) Measurement in the early stage: the method comprises the steps of bouncing and controlling a horizontal marking line on a parapet wall, bouncing and controlling a roof straightness control line on a drainage ditch, respectively leaving a blue mark and a red mark at 500mm and 520mm of the parapet wall, using the part with the elevation of 500mm as a flashing area, reserving a groove with the width of 3 mm-5 mm in the parapet wall at the blue mark, using bricks to shoot a line with the width of 50mm at the red mark to form a dripping eave, wherein the thickness of a plastering layer of the dripping eave is 12 mm-15 mm, the plastering is uniform, leaving a small groove with the width of 8mm in the lower edge, facilitating dripping, bouncing and controlling through the elevation and the plane control lines, so that the straightness and the flatness of a flashing construction base layer are guaranteed, and the effect after flashing construction is also guaranteed.
In the process of pouring the parapet wall, structural columns are arranged in the parapet wall at intervals of 1.2-1.5 m along the horizontal direction, a telescopic buffer zone with the length of 10-15 mm is reserved between the structural columns and a roof panel, asbestos threads are filled in the telescopic buffer zone, double structural columns are arranged on the parapet wall with the length exceeding 32m, an expansion joint with the length of 15-18 mm is reserved, asphalt hemp threads are filled in the expansion joint, and the joints are caulked by ointment to reduce the vertical deformation of the parapet wall; two phi 8mm constructional steel bars are buried in the parapet with the height of more than 550mm every 500mm, the parapet adopts a proper structure fundamentally to avoid various cracks, the cracks caused by the deformation of the parapet due to temperature are reduced, and the leakage range is reduced.
(b) Laying a waterproof layer: set up C20 pea gravel concret fillet in the handing-over department of parapet and roof boarding, the radius of fillet place circle is 120mm ~ 150mm, confirm the direction of laying waterproofing membrane according to the roofing slope of measurement, it adopts the full adhesion method to lay waterproofing membrane, when the roofing slope < 3%, the parallel roof ridge of waterproofing membrane is spread and is pasted, when the roofing slope > 3%, the perpendicular roof ridge of waterproofing membrane is spread and is pasted, used waterproofing membrane is the modified asphalt coiled material of high polymer, the temperature resistance is good, thickness is thin, there is not the trickling problem, parallel roof ridge is spread and is pasted and has following several benefits: (1) one coiled material can be laid to the bottom, so that joints are reduced, and raw materials are saved; (2) the working surface is large, the construction speed is high, and the labor force is saved; (3) the lap joints of the long edges of the coiled materials are all perpendicular to the water flowing direction of the roof slope, so that water leakage is not easy to occur; (4) the longitudinal tensile strength of the felt can be utilized to the maximum extent, and the anti-cracking capability of the roof is improved. The coiled material is received in the tip and is pressed in the recess of reserving after cutting neatly, compresses tightly fixedly with the inflation nail of the 6mm of phi of taking the gasket, then packs closely with C20 pea gravel concrete, and filling quality is high, prevents that waterproofing membrane from here appearing horizontal fracture in vertical deformation in-process. And then a precast concrete plate with the thickness of 25 mm-35 mm is arranged between the groove and the dripping eave, and a waterproof coiled material with the thickness of 50 mm-70 mm is laid on the upper part of the joint of the precast concrete plate, so that the leakage channel of the parapet wall can be effectively blocked by the arrangement of the precast concrete plate, the operation is simple, and the construction is convenient.
(c) Base layer treatment: the scums and sundries on the waterproof coiled material on the parapet facade in the flashing area are cleaned, the water marks on the surface of the waterproof coiled material are completely removed, the bonding degree of the waterproof coiled material, a roof panel and the parapet is checked, the position with folds is leveled firstly and then pressed to be neat, and then the cement nail of phi 250 is fixed, the position with raised edges is fixed again by the cement nail of phi 250 on the upper opening of the waterproof coiled material, the common quality problem of pasting of the waterproof coiled material is well solved, the construction quality is improved, and the flashing effect is improved.
(d) Manufacturing a mould: the materials of the mould are selected from the remaining block boards, the wood shelves and the decorative wood lines of the building site decoration, and the assembled block boards are firmly fixed by cement nails, have high rigidity and are not easy to damage, improve the utilization rate of waste materials and save the cost. The mould is by carpenter's board and flitch shelves preparation, can obtain the maximize to the circular arc radian and guarantee, accords with the design requirement, simultaneously for the holistic aesthetic property of flashing, adds at the circular arc both ends after the deepening and makes two sections little fillet lines, and the control of roughness when convenient follow-up shop pastes the construction.
The method comprises the steps of carrying out on-site cement paste preparation on a pre-calculated mixing ratio, stirring and manufacturing by using a concrete stirring device, adding clear water when stirring slurry in a stirring barrel 9, then feeding the cement, water reducing agent gypsum and sand in sequence, wherein the sand is medium sand, the mud content is less than 3%, the granularity of the sand is too fine, the bleeding phenomenon of a mixture can be caused, the strength of the mortar is reduced, and the surface layer can be cracked, and the sand is blown out and hollowing can be caused. Concrete slurry formed in the stirring process directly flows into the aggregate bin 10 through the sieve pores 12, so that manual material pouring work is reduced, and labor cost is saved. Collecting concrete grout in the aggregate bin 10, pouring the concrete grout into a die cavity of a die, carrying out a test in batches, checking the turnover rate of the die, removing the die with the turnover rate less than 8 times, manufacturing a flashing member on the qualified die, coating a release agent on the inner surface of the die, then pouring the concrete grout, and coating the release agent in advance to prevent the formed flashing member from being partially bonded on the die so as to ensure the forming quality. The manufacture of the mould and the flashing component is not restricted by the field and the climate condition, the project department prepares in advance, and the construction period is not influenced.
(e) Concrete flashing: and after the concrete slurry in the mold is kept stand for 48 hours, taking out the formed flashing member, brushing a layer of building base oil on the waterproof coiled material, paving the flashing member, cleaning the joint of the flashing member after paving, filling a foam strip, adhering masking paper along the outer edge of the flashing member, injecting weather-resistant sealant, uniformly and smoothly troweling by fingers, controlling the cracking phenomenon of the joint of the surface layer, and keeping the joint smooth and straight and good in appearance quality. After the sealant is condensed, plastering cement mortar on the surface of the flashing area, controlling the thickness to be 5mm, plastering for three times, wetting the flashing area with water thoroughly before plastering, and controlling the materials to ensure that the appearance quality of the flashing component after paving and pasting meets the requirement.
(f) Protecting a finished product: after the construction is finished, covering the flashing area with a blanket, watering and maintaining in time, wherein the maintaining time is longer than 12 hours, the covering material is ensured to be wet during the maintaining period, and people are prohibited from stepping on the roof or continuing the construction on the roof, so that the qualification rate of finished products is improved, and the reworking of the finished products is reduced.
(g) And (4) checking and maintaining: checking the upper and lower parts of the parapet and the waterproof coiled material, chiseling a crack with the width of 8-10 mm at the crack of the coping concrete of the parapet, cleaning the crack, enabling the edge to be vertical, pouring waterproof ointment into the crack, covering a white iron sheet on the surface, and fixing one side of the waterproof ointment; for the vertical crack of the parapet wall, filling asphalt hemp threads in the crack; for the cracking part on the upper part of the flashing, removing an external painting layer, sealing the head of the waterproof layer by using factice after the parapet masonry is dried, sealing the head by using C20 fine stone concrete, painting a surface layer by using the same material and performing fillet transition treatment on the turning part; for the horizontal displacement of the cracking part and the parapet wall at the lower part of the flashing, a professional must be required to design and process the horizontal displacement and then redo the horizontal displacement, and the treatment of the flashing leakage part follows the principle of no damage to the main structure and the appearance of a house, effective blocking of a leakage source, convenient construction, economy and reasonableness.
The invention has simple construction, convenient operation, easy control of construction quality, low construction cost, less related construction equipment, good waterproof effect of the formed flashing structure, good integrity, high appearance quality and long service life, fundamentally prevents the occurrence of leakage phenomenon compared with the traditional flashing method, and adopts a scientific and reasonable method to treat the leakage part, thereby not only meeting the waterproof requirement of the roof waterproof structure, but also improving the durability of the roof flashing part, not needing to spend excessive manpower and material resources for periodic maintenance, and effectively solving the practical problems of short service life, easy occurrence of aging cracks, poor waterproof effect, poor integral appearance effect of the roof, high maintenance cost and the like of the traditional roof flashing.
The concrete mixing device comprises a first support 1, a second support 2, a mixing mechanism 3 and a material receiving mechanism 4, wherein a moving mechanism 5 is arranged at the bottom of the first support 1, the moving mechanism 5 comprises a fixed support 6 and idler wheels 7, the idler wheels 7 are symmetrically distributed on two sides of the fixed support 6, the moving mechanism 5 is convenient to move, the carrying is labor-saving, the mixing mechanism is available anywhere, the mixing work can be carried out on site, and the whole body is supported by the idler wheels 7 and the second support 2 during fixing. Be equipped with supporting platform 8 between first support 1 and the second support 2, be equipped with receiving agencies 4 on supporting platform 8, receiving agencies 4 includes agitator 9 and collecting hopper 10, agitator 9 and collecting hopper 10 structure as an organic whole, be equipped with sieve 11 between agitator 9 and the collecting hopper 10, be equipped with sieve mesh 12 on the sieve 11, sieve 11 can prevent that sneak into in the grit mud large granule impurity and the hard piece of cement from entering into collecting hopper 10, guarantee the concrete quality that the stirring formed high, and high strength, the concrete that the stirring formed directly flows into collecting hopper 10 through sieve mesh 12, the work of artifical pouring has been reduced, and labor cost is saved. Supporting platform 8 is last to be equipped with bracing piece 13, and aggregate bin 10 swing joint is between bracing piece 13, is equipped with locking button 14 on the bracing piece 13, and after the concrete was filled in aggregate bin 10, unclamp locking button 14, just can rotate aggregate bin 10 and unload, simple structure, it is light convenient.
Be equipped with motor 15 on first support 1, the one end of motor 15 is connected with drive mechanism 16, drive mechanism 16 includes first runner 17, drive belt 18 and second runner 19, first runner 17 is connected to motor 15, first runner 17 and second runner 19 are connected to drive belt 18, be connected with first drive assembly on the second runner 19, first drive assembly includes first drive rod 20 and first drive gear 21, first drive rod 20 is rotatable on first support 1, first drive rod 20 is connected to second runner 19, motor 15 drives first runner 17 and rotates, it rotates to drive second runner 19 through drive belt 18, thereby it takes place to rotate to realize that second runner 19 drives first drive assembly, the transmission is stable, mutual noninterference. The second support 2 is movably connected with a second transmission assembly, the second transmission assembly comprises a second transmission rod 22 and a second transmission gear 23, an axial connecting rod 24 is arranged between the first support 1 and the second support 2, the stirring mechanism 3 comprises a rotating wheel 25, a stirring shaft 26 and stirring blades 27, the stirring blades 27 are uniformly distributed on the stirring shaft 26, the stirring shaft 26 is arranged on the rotating wheel 25, the rotating wheel 25 is arranged on the axial connecting rod 24, the rotating wheel 25 is provided with a toothed ring 28, the toothed ring 28 is connected with the first transmission gear 21 and the second transmission gear 23, the first transmission gear 21 drives the rotating wheel 25 to rotate through the toothed ring 28, the stirring shaft 26 rotates along with the rotating shaft, gravel slurry in the stirring barrel 9 is uniformly stirred through the stirring blades 27 to form concrete, the second transmission gear 23 is driven to rotate by the stirring mechanism 3, and the stability of the stirring mechanism 3 is improved.
The stirring device has the advantages of simple structure, high flexibility, labor saving in carrying, availability everywhere, good stirring stability and high working efficiency, and the concrete formed by stirring has high quality and high strength and can be effectively put into construction operation.
The above is only a specific embodiment of the present invention, but the technical features of the present invention are not limited thereto. Any simple changes, equivalent substitutions or modifications made based on the present invention to solve the same technical problems and achieve the same technical effects are within the scope of the present invention.
Claims (9)
1. A roof flashing construction method is characterized by comprising the following steps: (a) early stage measurement: bouncing a horizontal marking line on a parapet wall, bouncing a roof straightness control line on a drainage ditch, respectively leaving a blue mark and a red mark at the positions with the elevation of 500mm and 520mm of the parapet wall, reserving a groove with the width of 3 mm-5 mm in the parapet wall at the blue mark, using bricks to shoot a 50mm and 50mm line at the red mark to form a dripping eave, wherein the thickness of a plastering layer of the dripping eave is 12 mm-15 mm, and a small groove with the width of 8mm is left in the lower edge; (b) laying a waterproof layer: arranging a C20 fine stone concrete fillet at the joint of a parapet wall and a roof panel, wherein the radius of the circle where the fillet is located is 120-150 mm, determining the direction of laying a waterproof coiled material according to the measured roof slope, laying the waterproof coiled material by adopting a full-adhesion method, pressing the end part of the coiled material after being trimmed into a reserved groove, pressing and fixing the waterproof coiled material by using a phi 6mm expansion nail with a gasket, filling the waterproof coiled material with C20 fine stone concrete to be compact, arranging a precast concrete panel with the thickness of 25-35 mm between the groove and a dripping eave, and laying the waterproof coiled material with the width of 50-70 mm on the upper part of the joint of the precast concrete panel; in the process of pouring the parapet wall, arranging constructional columns in the parapet wall at intervals of 1.2-1.5 m along the horizontal direction, reserving a telescopic buffer zone with the width of 10-15 mm between the constructional columns and a roof panel, filling asbestos threads in the telescopic buffer zone, arranging double constructional columns on the parapet wall with the length exceeding 32m, reserving an expansion joint with the width of 15-18 mm, filling asphalt hemp threads in the expansion joint, and caulking joints by using factice; two phi 8mm constructional steel bars are embedded into the parapet with the height of more than 550mm every 500 mm; (c) base layer treatment: cleaning floating slag and sundries on the waterproof coiled material on the vertical surface of the parapet in the flashing area, ensuring that water traces on the surface of the waterproof coiled material are cleaned, checking the bonding degree of the waterproof coiled material with a roof panel and the parapet, flattening and pressing the parts with folds in a mode of firstly flattening and then fixing by cement nails with phi 250, and fixing the parts with raised edges by cement nails with phi 250 at the upper opening; (d) manufacturing a mould: selecting the materials of the mould from the remaining blockboards, the wood blocks and the decorative wood lines of the building site decoration, fixing firmly by cement nails after assembling, carrying out on-site cement paste preparation on the pre-calculated mixing ratio, stirring and manufacturing by a concrete stirring device, adding clear water when stirring the slurry in a stirring barrel, then feeding the cement, a water reducing agent, gypsum and sand in sequence, selecting medium sand as the sand, wherein the mud content is less than 3%, directly flowing the concrete slurry formed in the stirring process into a collecting hopper through a sieve mesh, collecting the concrete slurry in the collecting hopper, pouring the concrete slurry into a mould groove of the mould, carrying out batch test, checking the turnover rate of the mould, removing the mould with the turnover rate of less than 8 times, manufacturing a flashing member by the qualified mould, coating a release agent on the inner surface of the mould, and then pouring the concrete slurry; (e) concrete flooding: after concrete slurry in a mold is kept stand for 48 hours, taking out a formed flashing member, brushing a layer of building base oil on a waterproof coiled material, then paving and pasting the flashing member, cleaning the joint of the flashing member after paving and pasting, plugging a foam strip, pasting crepe paper along the outer edge of the flashing member, driving weather-resistant sealant, uniformly and smoothly smearing with fingers, after the sealant is condensed, brushing cement mortar on the surface of a flashing area, controlling the thickness to be 5mm, brushing for three times, and wetting with water thoroughly before brushing; (f) protection of finished products: after the construction is finished, covering the flashing area with a blanket, watering and curing in time, wherein the curing time is longer than 12 hours, the covering material is ensured to be wet during the curing period, and people who are idle are prohibited to tread on the roof or continue the construction; (g) inspection and maintenance: checking the upper and lower parts of the parapet and the waterproof coiled material, chiseling a crack with the width of 8-10 mm at the crack of the coping concrete of the parapet, cleaning the crack, enabling the edge to be vertical, pouring waterproof ointment into the crack, covering a white iron sheet on the surface, and fixing one side of the waterproof ointment; for the vertical crack of the parapet wall, filling asphalt hemp threads in the crack; for the cracking part on the upper part of the flashing, removing an external painting layer, sealing the head of the waterproof layer by using factice after the parapet masonry is dried, sealing the head by using C20 fine stone concrete, painting a surface layer by using cement mortar and performing fillet transition treatment on the turning part; for the cracking part at the lower part of the flashing and the horizontal displacement of the parapet wall, the professional is required to do the design and the treatment again.
2. The roof flashing construction method according to claim 1, which is characterized in that: and (b) when the slope of the roof is less than 3%, paving and pasting the waterproof coiled material in parallel to the roof ridge, when the slope of the roof is more than 3%, paving and pasting the waterproof coiled material in perpendicular to the roof ridge, wherein the waterproof coiled material is a high polymer modified asphalt coiled material.
3. The concrete mixing device for the roof flashing construction method according to claim 1, wherein: including first support, second support, rabbling mechanism and receiving agencies, first support with be equipped with supporting platform between the second support, the last receiving agencies that is equipped with of supporting platform, be equipped with the motor on the first support, the one end of motor is connected with drive mechanism, the last first drive assembly that is connected with of drive mechanism, first drive assembly rotates on the first support, be equipped with second drive assembly on the second support, first support with be equipped with the axial direction connecting rod between the second support, rabbling mechanism locates on the axial direction connecting rod, first drive assembly with the equal swing joint of second drive assembly rabbling mechanism.
4. The concrete mixing device for the roof flashing construction method according to claim 3, wherein: the stirring mechanism is provided with a toothed ring, and the toothed ring is connected with the first transmission gear and the second transmission gear.
5. The concrete mixing device for the roof flashing construction method according to claim 3, wherein: the stirring mechanism comprises a rotating wheel, a stirring shaft and stirring blades, wherein the stirring blades are uniformly distributed on the stirring shaft, the stirring shaft is arranged on the rotating wheel, and the rotating wheel is arranged on the axial connecting rod.
6. The concrete mixing device for the roof flashing construction method according to claim 3, wherein: the transmission mechanism comprises a first rotating wheel, a transmission belt and a second rotating wheel, the transmission belt is connected with the first rotating wheel and the second rotating wheel, the second rotating wheel is connected with the first transmission assembly, and the motor is connected with the first rotating wheel.
7. The concrete mixing device for the roof flashing construction method according to claim 3, wherein: the receiving agencies includes agitator and collecting hopper, the agitator with collecting hopper structure as an organic whole, the agitator with be equipped with the sieve between the collecting hopper, the collecting hopper is located supporting platform is last.
8. The concrete mixing device for the roof flashing construction method according to claim 7, which is characterized in that: the supporting platform is provided with supporting rods, the aggregate bins are movably connected between the supporting rods, and the supporting rods are provided with locking buttons.
9. The concrete mixing device for the roof flashing construction method according to claim 3, wherein: the bottom of first support is equipped with moving mechanism, moving mechanism includes fixed bolster and gyro wheel, the gyro wheel symmetric distribution is in the both sides of fixed bolster.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810900168.6A CN109184093B (en) | 2018-08-09 | 2018-08-09 | Roof flashing construction method and concrete stirring device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810900168.6A CN109184093B (en) | 2018-08-09 | 2018-08-09 | Roof flashing construction method and concrete stirring device |
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| CN109184093A CN109184093A (en) | 2019-01-11 |
| CN109184093B true CN109184093B (en) | 2020-09-25 |
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Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7836658B2 (en) * | 2009-01-16 | 2010-11-23 | Perrot Jr John J | Roof flashing |
| CN101994399B (en) * | 2010-10-30 | 2012-09-26 | 河南国基建设集团有限公司 | Method for repairing leaked coiled-material water-proof roof |
| CN102852290A (en) * | 2012-10-17 | 2013-01-02 | 中国建筑第二工程局有限公司 | Roof parapet flashing place structure and construction method thereof |
| CN106677440A (en) * | 2016-12-30 | 2017-05-17 | 河北恒山建设集团有限公司 | Roofing parapet water-floating structure and construction method thereof |
| CN107572946A (en) * | 2017-07-31 | 2018-01-12 | 中交天航港湾建设工程有限公司 | A kind of solid netted thin-walled prefabricated components concrete construction match ratio |
| CN107443584A (en) * | 2017-09-18 | 2017-12-08 | 郑州启硕电子科技有限公司 | A kind of new production dry powder and mortar special mixing plant |
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